项目总览
api层
entity.Good
package org.example.api.entity;
public class Good {
String goodName;
String goodValue;
String goodId;
String goodNum;
public Good(String name, String f, String Id , String Num){
this.goodName = name;
this.goodValue= f;
this.goodId = Id;
this.goodNum = Num;
}
public Good() {
}
public String getGoodName() {
return goodName;
}
public void setGoodName(String goodName) {
this.goodName = goodName;
}
public String getGoodValue() {
return goodValue;
}
public void setGoodValue(String goodValue) {
this.goodValue = goodValue;
}
public String getGoodId() {
return goodId;
}
public void setGoodId(String goodId) {
this.goodId = goodId;
}
public String getGoodNum() {
return goodNum;
}
public void setGoodNum(String goodNum) {
this.goodNum = goodNum;
}
}
entity.User
package org.example.api.entity;
public class User {
private int uid;
public String userName;
public String userPassword;
private String sex;
private int age;
private String telephone;
public User(String userName, String userPassword) {
this.userName=userName;
this.userPassword=userPassword;
}
public int getUid() {
return uid;
}
public void setUid(int uid) {
this.uid = uid;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getTelephone() {
return telephone;
}
public void setTelephone(String telephone) {
this.telephone = telephone;
}
public User(int uid, String uname, String pwd, String sex, int age,
String telephone)
{
super();
this.uid = uid;
this.userName = uname;
this.userPassword = pwd;
this.sex = sex;
this.age = age;
this.telephone = telephone;
}
public User() {
super();
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
User other = (User) obj;
if (age != other.age)
return false;
if (telephone == null) {
if (other.telephone != null)
return false;
} else if (!telephone.equals(other.telephone))
return false;
if (userPassword == null) {
if (other.userPassword != null)
return false;
} else if (!userPassword.equals(other.userPassword))
return false;
if (sex == null) {
if (other.sex != null)
return false;
} else if (!sex.equals(other.sex))
return false;
if (uid != other.uid)
return false;
if (userName == null) {
if (other.userName != null)
return false;
} else if (!userName.equals(other.userName))
return false;
return true;
}
@Override
public String toString() {
return "User{" +
"uid=" + uid +
", userName='" + userName + '\'' +
", userPassword='" + userPassword + '\'' +
", sex='" + sex + '\'' +
", age=" + age +
", telephone='" + telephone + '\'' +
'}';
}
}
## entity.GoodList
```clike
package org.example.api.entity;
import java.util.ArrayList;
import java.util.stream.Stream;
public class GoodList {
ArrayList<Good> goodsList = new ArrayList<Good>();
public ArrayList<Good> getGoodList() {
return this.goodsList;
}
public Good findGood(int i) {
return goodsList.get(i);
}
public void addGoods(Good g) {
this.goodsList.add(g);
}
public void removeGoods(Good g) {
int index = goodsList.indexOf(g);
this.goodsList.remove(index);
}
public void clearGoods() {
this.goodsList.clear();
}
}
entity.OrderList
package org.example.api.entity;
import org.example.api.utils.MyTools;
import java.util.ArrayList;
public class OrderList extends ArrayList {
private ArrayList<Good> OrderList = new ArrayList<Good>();
public ArrayList<Good> getOrders(){
return this.OrderList;
}
public Good findOrder(int i) {
return OrderList.get(i);
}
public void addOrder(Good g) {
if(OrderList.size() == 0) {
OrderList.add(g);
}else {
int i = 0;
for(; i < OrderList.size(); i++) {
if(g.getGoodName().equals(OrderList.get(i).getGoodName())) {
OrderList.get(i).setGoodId(OrderList.get(i).getGoodId()+1);
break;
}
}
if(i >= OrderList.size()) {
OrderList.add(g);
}
}
}
public void reduceOrder(Good g) {
if(OrderList.size() == 0) {
System.out.println("no item to reduce!");
}else {
int i = 0;
for(; i < OrderList.size(); i++) {
if(g.getGoodName().equals(OrderList.get(i).getGoodName())) {
if(Integer.getInteger(OrderList.get(i).getGoodId()) > 1) {
OrderList.get(i).setGoodId(""+(Integer.getInteger(OrderList.get(i).getGoodId())-1));
break;
}else if(OrderList.get(i).getGoodId() == "1") {
OrderList.remove(OrderList.get(i));
break;
}
}
}
}
}
public void removeOrder(Good g) {
if(OrderList.size() == 0) {
System.out.println("没有可以删除的选项！");
}else {
OrderList.remove(g);
}
}
public void clearItem(String name) {
if(OrderList.size() == 0) {
}else {
int i = 0;
for(; i < OrderList.size(); i++) {
if(MyTools.toChinese(name).equals(OrderList.get(i).getGoodName())) {
OrderList.remove(i);
}
}
}
}
public void clearCar() {
OrderList.clear();
}
}
controllor层
AddGoodServlet
package org.example.controllor;
import org.example.api.IOrderService;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.OrderServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/AddGood")
public class AddGoodServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取参数内容
String id = request.getParameter("id");
String userName = request.getParameter("userName");
IOrderService iOrderService = new OrderServiceImpl();
boolean judgment = false;
try {
judgment = iOrderService.selectOrder(id,userName);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "update t_order set orderNum=orderNum+1 where orderId=? and userName=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, id);
preparedStatement.setString(2,userName);
int count = preparedStatement.executeUpdate();
if (count == 1) {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
}
}
carfilter
package org.example.controllor;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebFilter("/showcar.jsp")
public class carFilter implements Filter {
@Override
public void destroy() {
System.out.println("销毁了filter对象");
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
String uri = request.getRequestURI();
if (uri.contains("/login.jsp") || uri.contains("/loginUser") || uri.contains("/register.jsp") || uri.contains("/delete.jsp") || uri.contains("/insertUser") || uri.contains("/deleteUser") || uri.contains("/css/")){
filterChain.doFilter(servletRequest,servletResponse);
}
else{
String userName = (String) request.getSession().getAttribute("userName");
if (userName==null||"".equals(userName)){
request.setAttribute("msg","登录以查看更多信息");
request.getRequestDispatcher("/login.jsp").forward(request,servletResponse);
}else {
filterChain.doFilter(servletRequest,servletResponse);
}
}
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
System.out.println("创建了filter对象");
}
}
DeleteUserServlet
package org.example.controllor;
import org.example.api.IUserService;
import org.example.service.impl.UserServiceImpl;
import org.example.api.utils.JavaDateConnectionUtils;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/DeleteUser")
public class DeleteUserServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取表单内容
String userName = request.getParameter("userName");
String userPassword = request.getParameter("userPassword");
String telephone = request.getParameter("telephone");
System.out.println(userName + userPassword + telephone);
// 判断表单内容是否为空
if (userName == null || userName.trim() == "" || userPassword == null || userPassword.trim() == "" || telephone == null || telephone.trim() == "" ) {
request.setAttribute("msg", "用户信息填写不完整!!!请重新进行注销");
request.getRequestDispatcher("delete.jsp").forward(request, response);
} else {
IUserService iUserService = new UserServiceImpl();
boolean judgment = true;
try {
judgment = iUserService.insertUser(userName, userPassword);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "delete from t_user where userName=? and userPassword=? and telephone=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, userName);
preparedStatement.setString(2, userPassword);
preparedStatement.setString(3, telephone);
int count = preparedStatement.executeUpdate();
if (count != 0) {
request.setAttribute("msg", "用户"+ userName+"注销成功!!!");
request.getRequestDispatcher("delete.jsp").forward(request, response);
}
else {
request.setAttribute("msg","用户电话填写有误，请确认用户信息后重试");
request.getRequestDispatcher("delete.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.setAttribute("msg", "注销失败，请确认账号密码无误后重试");
request.getRequestDispatcher("delete.jsp").forward(request, response);
}
}
}
}
goodFilter
package org.example.controllor;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebFilter("/showgoods.jsp")
public class goodFilter implements Filter {
@Override
public void destroy() {
System.out.println("销毁了filter对象");
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
String uri = request.getRequestURI();
if (uri.contains("/login.jsp") || uri.contains("/loginUser") || uri.contains("/register.jsp") || uri.contains("/delete.jsp") || uri.contains("/insertUser") || uri.contains("/deleteUser") || uri.contains("/css/")){
filterChain.doFilter(servletRequest,servletResponse);
}
else{
String userName = (String) request.getSession().getAttribute("userName");
if (userName==null||"".equals(userName)){
request.setAttribute("msg","登录以查看更多信息");
request.getRequestDispatcher("/login.jsp").forward(request,servletResponse);
}else {
filterChain.doFilter(servletRequest,servletResponse);
}
}
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
System.out.println("创建了filter对象");
}
}
InsertGoodServlet
package org.example.controllor;
import org.example.api.IOrderService;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.OrderServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/InsertGood")
public class InsertGoodServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取参数内容
String id = request.getParameter("id");
String name = request.getParameter("name");
String value = request.getParameter("value");
String userName = request.getParameter("userName");
IOrderService iOrderService = new OrderServiceImpl();
boolean judgment = true;
try {
judgment = iOrderService.selectOrder(id,userName);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == false) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "insert into t_order(orderId,orderName,orderValue,orderNum,userName) values (?,?,?,?,?)";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, id);
preparedStatement.setString(2, name);
preparedStatement.setString(3, value);
preparedStatement.setString(4,"1");
preparedStatement.setString(5,userName);
int count = preparedStatement.executeUpdate();
if (count == 1) {
HttpSession httpSession = request.getSession();
httpSession.setAttribute("userName",userName);
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
}
}
InsertUserServlet
package org.example.controllor;
import org.example.api.IUserService;
import org.example.service.impl.UserServiceImpl;
import org.example.api.utils.JavaDateConnectionUtils;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/InsertUser")
public class InsertUserServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取表单内容
String userName = request.getParameter("userName");
String userPassword = request.getParameter("userPassword");
String sex = request.getParameter("sex");
String age = request.getParameter("age");
String telephone = request.getParameter("telephone");
System.out.println(userName + userPassword + sex + age + telephone);
// 判断表单内容是否为空
if (userName == null || userName.trim() == "" || userPassword == null || userPassword.trim() == "" || sex == null || sex.trim() == "" || telephone == null || telephone.trim() == "" || age == null || age.trim() == "") {
request.setAttribute("msg", "用户信息填写不完整!!!请重新进行注册");
request.getRequestDispatcher("register.jsp").forward(request, response);
} else {
IUserService iUserService = new UserServiceImpl();
boolean judgment = true;
try {
judgment = iUserService.loginUser(userName);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == false) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "insert into t_user(userName,userPassword,sex,age,telephone) value(?,?,?,?,?)";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, userName);
preparedStatement.setString(2, userPassword);
preparedStatement.setString(3, sex);
preparedStatement.setString(4, age);
preparedStatement.setString(5, telephone);
int count = preparedStatement.executeUpdate();
if (count == 1) {
request.setAttribute("msg", "注册成功!!!登录以查看更多内容");
request.getRequestDispatcher("login.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("register.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.setAttribute("msg", "注册失败，该用户已存在，请确认账号密码无误后重试");
request.getRequestDispatcher("register.jsp").forward(request, response);
}
}
}
}
loginUserServlet
package org.example.controllor;
import org.example.api.IUserService;
import org.example.service.impl.UserServiceImpl;
import org.example.api.utils.JavaDateConnectionUtils;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
@WebServlet("/loginUser")
public class loginUserServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取表单内容
String userName = request.getParameter("userName");
String userPassword = request.getParameter("userPassword");
// 判断表单内容是否为空
if (userName == null || userName.trim() == "" || userPassword == null || userPassword.trim() == "" ) {
request.setAttribute("msg", "用户信息填写不完整!!!请重新进行登录");
request.getRequestDispatcher("login.jsp").forward(request, response);
} else {
IUserService iUserService = new UserServiceImpl();
boolean judgment = true;
try {
judgment = iUserService.insertUser(userName, userPassword);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "select * from t_user where userName=? and userPassword=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, userName);
preparedStatement.setString(2, userPassword);
ResultSet rs = preparedStatement.executeQuery();
while (rs.next()){
System.out.println(rs.getString("userName")+rs.getString("userPassword")+rs.getString("sex")+rs.getString("age")+rs.getString("telephone"));
}
request.setAttribute("msg", "登录成功!!!");
HttpSession httpSession = request.getSession();
httpSession.setAttribute("userName",userName);
request.getRequestDispatcher("showgoods.jsp").forward(request, response);
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.setAttribute("msg", "登录失败，请确认账号密码无误后重试");
request.getRequestDispatcher("login.jsp").forward(request, response);
}
}
}
}
RemoveAllGoodServlet
package org.example.controllor;
import org.example.api.IOrderService;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.OrderServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/RemoveAllGood")
public class RemoveAllGoodServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
String userName = request.getParameter("userName");
IOrderService iOrderService = new OrderServiceImpl();
boolean judgment = false;
try {
judgment = iOrderService.select();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "delete from t_order where userName=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1,userName);
int count = preparedStatement.executeUpdate();
if (count != 0) {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
}
}
RemoveGoodServlet
package org.example.controllor;
import org.example.api.IOrderService;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.OrderServiceImpl;
import org.example.api.utils.MyTools;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@WebServlet("/RemoveGood")
public class RemoveGoodServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取参数内容
String id = request.getParameter("id");
String userName = request.getParameter("userName");
// MyTools myTools = new MyTools();
IOrderService iOrderService = new OrderServiceImpl();
boolean judgment = false;
try {
judgment = iOrderService.selectOrder(id,userName);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "update t_order set orderNum=orderNum-1 where orderId=? and orderNum!=? and userName=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, id);
preparedStatement.setString(2, "1");
preparedStatement.setString(3,userName);
int count = preparedStatement.executeUpdate();
if (count == 1) {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("/RemoveOrder?id="+id+"&userName="+userName).forward(request,response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request,response);
}
}
}
RemoveOrderServlet
package org.example.controllor;
import org.example.api.IOrderService;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.OrderServiceImpl;
import org.example.api.utils.MyTools;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import org.example.api.utils.MyTools;
@WebServlet("/RemoveOrder")
public class RemoveOrderServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取参数内容
String id = request.getParameter("id");
String userName = request.getParameter("userName");
IOrderService iOrderService = new OrderServiceImpl();
boolean judgment = false;
try {
judgment = iOrderService.selectOrder(id,userName);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = " delete from t_order where orderId=? and userName=? ";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, id);
preparedStatement.setString(2,userName);
int count = preparedStatement.executeUpdate();
if (count == 1) {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.getRequestDispatcher("showcar.jsp").forward(request, response);
}
}
}
SAddGoodServlet
package org.example.controllor;
import org.apache.catalina.session.StandardSession;
import org.example.api.IGoodService;
import org.example.api.IUserService;
import org.example.service.impl.GoodServiceImpl;
import org.example.api.entity.Good;
import org.example.api.entity.GoodList;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.GoodServiceImpl;
import org.example.service.impl.UserServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
@WebServlet("/SAddGood")
public class SAddGoodServlet extends HttpServlet {
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
// 获取表单内容
String userName = request.getParameter("userName");
String goodName = request.getParameter("goodName");
String goodValue = request.getParameter("goodValue");
String goodId = request.getParameter("goodId");
System.out.println(userName);
// 判断表单内容是否为空
if (goodId == null || goodName.trim() == "" || goodValue == null || goodValue.trim() == "" || goodId == null || goodId.trim() == "" ) {
request.setAttribute("msg", "商品信息填写不完整!!!请重新进行填写");
request.getRequestDispatcher("SAddGood.jsp").forward(request, response);
} else {
IGoodService iGoodService = new GoodServiceImpl();
boolean judgment = true;
try {
judgment = iGoodService.select(goodId);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == false && userName.equals("侯凯")) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "insert into t_good(goodId,goodName,goodValue) value(?,?,?)";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, goodId);
preparedStatement.setString(2, goodName);
preparedStatement.setString(3, goodValue);
int count = preparedStatement.executeUpdate();
if (count == 1) {
request.setAttribute("msg", "添加成功!!!");
request.getRequestDispatcher("SAddGood.jsp").forward(request, response);
}
else {
request.setAttribute("msg", "添加失败，该商品已存在或您无增加商品的权限");
request.getRequestDispatcher("SAddGood.jsp").forward(request, response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
request.setAttribute("msg", "添加失败，该商品已存在或您无增加商品的权限");
request.getRequestDispatcher("SAddGood.jsp").forward(request, response);
}
}
}
}
SelectGoodServlet
package org.example.controllor;
import org.apache.catalina.session.StandardSession;
import org.example.api.IGoodService;
import org.example.service.impl.GoodServiceImpl;
import org.example.api.entity.Good;
import org.example.api.entity.GoodList;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.GoodServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
@WebServlet("/SelectGood")
public class SelectGoodServlet extends HttpServlet {
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
IGoodService iGoodService = new GoodServiceImpl();
GoodList goodList= new GoodList();
boolean judgment = false;
try {
judgment = iGoodService.selectGood();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "select * from t_good";
preparedStatement = connection.prepareStatement(sql);
ResultSet rs = preparedStatement.executeQuery();
while (rs.next()){
Good p = new Good();
p.setGoodId(rs.getString("goodId"));
p.setGoodName(rs.getString("goodName"));
p.setGoodValue(rs.getString("goodValue"));
goodList.addGoods(p);
}
HttpSession httpSession = request.getSession();
httpSession.setAttribute("Array",goodList.getGoodList());
request.getRequestDispatcher("showgoods.jsp").forward(request, response);
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
}
}
SelectOrderServlet
package org.example.controllor;
import org.example.api.IGoodService;
import org.example.api.IOrderService;
import org.example.service.impl.GoodServiceImpl;
import org.example.api.entity.Good;
import org.example.api.entity.GoodList;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.OrderServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
@WebServlet("/SelectOrder")
public class SelectOrderServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
String userName = request.getParameter("userName");
IOrderService iOrderService = new OrderServiceImpl();
GoodList goodList= new GoodList();
boolean judgment = false;
try {
judgment = iOrderService.select();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "select * from t_order where userName=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, userName);
ResultSet rs = preparedStatement.executeQuery();
while (rs.next()){
System.out.println(rs.getString("orderName")+rs.getString("orderValue"));
Good p = new Good();
p.setGoodId(rs.getString("orderId"));
p.setGoodName(rs.getString("orderName"));
p.setGoodValue(rs.getString("orderValue"));
p.setGoodNum(rs.getString("orderNum"));
goodList.addGoods(p);
}
HttpSession httpSession = request.getSession();
request.setAttribute("Array1",goodList.getGoodList());
request.getRequestDispatcher("showcar.jsp").forward(request, response);
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
HttpSession httpSession = request.getSession();
httpSession.setAttribute("Array1",goodList.getGoodList());
request.getRequestDispatcher("showcar.jsp").forward(request,response);
}
}
}
SRemoveGoodServlet
package org.example.controllor;
import org.apache.catalina.session.StandardSession;
import org.example.api.IGoodService;
import org.example.service.impl.GoodServiceImpl;
import org.example.api.entity.Good;
import org.example.api.entity.GoodList;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.service.impl.GoodServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
@WebServlet("/SRemoveGood")
public class SRemoveGoodServlet extends HttpServlet {
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 防止乱码
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
String id = request.getParameter("id");
String userName = request.getParameter("userName");
IGoodService iGoodService = new GoodServiceImpl();
GoodList goodList = new GoodList();
boolean judgment = false;
try {
judgment = iGoodService.select(id);
} catch (SQLException throwables) {
throwables.printStackTrace();
}
if (judgment == true && userName.equals("侯凯")) {
JavaDateConnectionUtils javaDateConnection = new JavaDateConnectionUtils();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = javaDateConnection.getConn();
String sql = "delete from t_good where goodId=?";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, id);
int rs = preparedStatement.executeUpdate();
if (rs == 1) {
HttpSession httpSession = request.getSession();
request.setAttribute("ji","商品删除成功！！！");
request.getRequestDispatcher("showgoods.jsp").forward(request, response);
}
else {
request.getRequestDispatcher("showgoods.jsp").forward(request,response);
}
} catch (SQLException throwables) {
throwables.printStackTrace();
} finally {
try {
connection.close();
preparedStatement.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
else {
HttpSession httpSession = request.getSession();
request.setAttribute("ji","商品删除失败！！！您无删除商品的权限,");
request.getRequestDispatcher("showgoods.jsp").forward(request,response);
}
}
}
# web层
```java
```java
```java
```clike
<%@ page language="java" contentType="text/html;charset=utf-8" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>账号注册</title>
</head>
<style>
#a {
width:50%;
height:50%;
border: 1px dashed ;
background-color: #90eee3;
text-align:center;
}
body{
background-color: #e0f9ff;
}
</style>
<body>
<div id="a">
<h1>注销账号</h1>
<form action="/DeleteUser" method="post">
用 户 名:
<input type="text" name="userName">
<br>
密 码:
<input type="password" name="userPassword">
<br>
手 机 号:
<input type="text" name="telephone">
<br>
<input type="submit" value="注销">
</form>
</div>
<h3 align="center" ><%=request.getAttribute("msg")%></h3>
<h2 align="center"><a href="register.jsp">点击重新注册账号</a></h2>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html" charset="UTF-8">
<title>黑市商城首页</title>
</head>
<%response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");%>
<body bgcolor="#add8e6">
<table width="100%">
<tr>
<td>
<table width="100%">
<tr>
<td>
<a href="register.jsp">注册</a>
<a href="login.jsp">登录</a>
<a href="delete.jsp">注销</a>
<a href="showcar.jsp">订单</a>
<a href="#">帮助</a>
</td>
</tr>
</table>
</td>
</tr>
<!--第二部分-->
<tr bgcolor="black">
<td height="50px">
<a href="#"><font color="white">首页</font></a>
<a href="#"><font color="white">碳酸饮料</font></a>
<a href="#"><font color="white">乳饮</font></a>
<a href="#"><font color="white">果茶</font></a>
<a href="#"><font color="white">其他饮料</font></a>
</td>
</tr>
<tr>
<td>
<img src="https://n.sinaimg.cn/spider2020420/133/w600h333/20200420/4c7d-iskepxt7981236.png" height="300px" width="100%" />
</td>
</tr>
<tr>
<td>
<table>
<tr>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
</tr>
<tr>
<td>
<img src="https://cbu01.alicdn.com/img/ibank/2019/935/265/11703562539_780901980.jpg" height="200px" width="200px"/>
<p><a>旺仔牛奶（一排）</a></p>
<p><font color="red">$20</font></p>
</td>
<td>
<img src="https://tse3-mm.cn.bing.net/th/id/OIP.kz-2OVuNiFTQrYHAD7jP2AAAAA?pid=ImgDet&rs=1" height="200px" width="200px"/>
<p><a>脉动</a></p>
<p><font color="red">$5</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/R48187afbfb548050648990f0dd7a3fe0?rik=cXl%2bo9kjuPe5YA&riu=http%3a%2f%2fwww.shikefood.com%2fimages%2f201706%2fsource_img%2f10502_P_1497391133066.jpg&ehk=4xKqaMC%2fueYJILKz3HynqZJ25tDpC2%2bZf5YKEAkPfTA%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>乌龙茶</a></p>
<p><font color="red">$1</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rdb7c7cba11e8e880930a480ff0db0c87?rik=cTjPOJPJyoleSA&riu=http%3a%2f%2fpic109.nipic.com%2ffile%2f20160916%2f6062299_163706413000_2.jpg&ehk=1nPt6VryGF2MlNMFi8ChxJ1PhlVp1k1%2fKnz2bLkL6VQ%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>可口可乐</a></p>
<p><font color="red">$3</font></p>
</td>
</tr>
<tr>
<td>
<img src="https://th.bing.com/th/id/Rbf660f71a587e9c365139518e7b084b1?rik=O1SdZo5%2f8tmEpQ&riu=http%3a%2f%2fpic299.nipic.com%2ffile%2f20200611%2f19051700_194646446000_2.jpg&ehk=GDt8l%2bRaESjBBHz%2bfP5TVTqjtCGNHypsIubHbRgbsSs%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>果茶</a></p>
<p><font color="red">$15</font></p>
</td>
<td>
<img src="https://tse1-mm.cn.bing.net/th/id/OIP.WzXja99RFLlHs4LreoO3GQHaGq?pid=ImgDet&rs=1" height="200px" width="200px"/>
<p><a>七喜</a></p>
<p><font color="red">$7</font></p>
</td>
<td>
<img src="https://imgservice4.suning.cn/uimg1/b2c/image/gs0RyM76yxGFGVefFTHpAg==.jpg_400w_400h_4e" height="200px" width="200px"/>
<p><a>水晶葡萄</a></p>
<p><font color="red">$4.5</font></p>
</td>
<td>
<img src="https://tse3-mm.cn.bing.net/th/id/OIP.U6N6vZvwHFWmqFq8Pk8tPQHaKE?pid=ImgDet&rs=1" height="200px" width="200px"/>
<p><a>美年达</a></p>
<p><font color="red">$3</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rc68719c95e68240324bad6459d625675?rik=1SpDWN3ULeZtsQ&riu=http%3a%2f%2fimages.zon100.com%2fimg%2f10000518%2f1100141218%2f1100206232_1000.jpg&ehk=DcWYen6bIosj%2f4LJlX0g1xbitDegc7ga78tDMlubvo4%3d&risl=&pid=ImgRaw" height="200px" width="200px"/>
<p><a>绿茶</a></p>
<p><font color="red">$5</font></p>
</td>
<td>
<img src="https://th.bing.com/th/id/Rbc672bbf2693119837a8d3f5df6e2fbd?rik=KpfIwTaSBYPgdw&riu=http%3a%2f%2fwx1.sinaimg.cn%2flarge%2f006APoFYly1ga7ynozy6eg308c069dg7.gif&ehk=raDwaMUtQHU1LIZCkiu2tn91MXGEsd1k5uqrK7hXh7I%3d&risl=&pid=ImgRaw" height="200px" width="220px"/>
<p><a>营养快线</a></p>
<p><font color="red">$998</font></p>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<img src="picture/banner.jpg" height="5%" width="100%"/>
</td>
</tr>
<tr>
<td align="center">
<a href="#">服务保障</a>
<a href="#">联系我们</a>
<a href="#">关于我们</a>
<a href="#">投诉建议</a>
<br />
<p>HK黑市商城©2021-4.18火爆开启</p>
</td>
</tr>
</table>
</body>
</html>
<%@ page language="java" contentType="text/html;
charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=utf-8">
<title>用户登录</title>
<style>
#a {
width:50%;
height:200px;
border: 1px dashed ;
background-color: #e0fff4;
text-align:center;
}
body{
background-color:lightblue;
}
</style>
</head>
<body>
<div id="a">
<h1>登录界面</h1>
<form action="/loginUser" method="post">
账号:<input type="text" name="userName"/>
<br>
密码:<input type="password" name="userPassword"/>
<br>
<input type="submit" value="登录"/>
没有账号？<a href ="register.jsp">注册账号</a><br>
多余账号？<a href="delete.jsp">注销账号</a>
</form>
</div>
<h3 align="center" ><%=request.getAttribute("msg")%></h3>
<h2 align="center"><a href="showgoods.jsp">点击进入商品界面</a></h2>
</body>
</html>
<%@ page language="java" contentType="text/html;charset=utf-8" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>账号注册</title>
</head>
<style>
#a {
width:50%;
height:50%;
border: 1px dashed ;
background-color: #90eee6;
text-align:center;
}
body{
background-color: #e0f9ff;
}
</style>
<body>
<div id="a">
<h1>注册账号</h1>
<form action="/InsertUser" method="post">
用 户 名:
<input type="text" name="userName">
<br>
密 码:
<input type="password" name="userPassword">
<br>
性 别:
<input type="text" name="sex">
<br>
年 龄:
<input type="text" name="age">
<br>
手 机 号:
<input type="text" name="telephone">
<br>
<input type="submit" value="注册">
已有账号？<a href ="login.jsp">点击登录</a><br>
</form>
</div>
<h3 align="center" ><%=request.getAttribute("msg")%></h3>
</body>
</html>
<%@ page language="java" contentType="text/html;
charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=utf-8">
<title>添加商品</title>
<style>
#a {
width:50%;
height:200px;
border: 1px dashed ;
background-color: #e0fff4;
text-align:center;
}
<%
String userName = request.getParameter("userName");
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
%>
body{
background-color:lightblue;
}
</style>
</head>
<body>
<div id="a">
<h1>添加商品界面</h1>
<form action="/SAddGood?userName=<%=userName%>" method="post">
商品名称:<input type="text" name="goodName"/>
<br>
商品价格:<input type="text" name="goodValue"/>
<br>
商品ID:<input type="text" name="goodId"/>
<br>
<input type="submit" value="添加"/>
</form>
</div>
<h3 align="center" ><%=request.getAttribute("msg")%></h3>
<h2 align="center"><a href="showgoods.jsp">点击进入商品界面</a></h2>
</body>
</html>
<%@page import="java.util.ArrayList"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="org.example.api.entity.Good" %>
<%@ page import="org.example.api.entity.GoodList" %>
<%@ page import="org.example.api.utils.MyTools" %>
<%@ page import="org.example.api.entity.OrderList" %>
<%
float total = 0;
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html" charset="UTF-8">
<link href="styles.css" type="text/css" rel="stylesheet" />
<title>黑市订单</title>
</head>
<body>
<%
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
HttpSession httpSession = request.getSession();
String userName = (String) httpSession.getAttribute("userName");
%>
<h3 align="left"><a href="/SelectOrder?userName=<%=userName%>">点击刷新订单</a></h3>
<h3 align="right"><a href="index.jsp">返回主页面</a></h3>
<%
ArrayList <Good> buyList = null;
buyList = (ArrayList<Good>) request.getAttribute("Array1");
%>
<table>
<tr height="50">
<td colspan="3" align="center" ><h1> 订单</h1></td>
</tr>
<tr align="center" height="30" bgcolor="lightgrey">
<td>名称</td>
<td>价格</td>
<td>数量</td>
<td>移除</td>
</tr>
<% if(buyList == null || buyList.size() == 0){ %>
<tr height="100">
<td colspan="3" align="center">您的订单还未添加任何商品！<br>
请尝试刷新您的订单！</td>
</tr>
<%
}else{
for(int i = 0; i < buyList.size(); i++){
Good single = buyList.get(i);
float money = MyTools.strToInt(single.getGoodValue())*MyTools.strToInt(single.getGoodNum());
total += money;
%>
<tr align="center" height="50">
<td><%= single.getGoodName() %></td>
<td><%= single.getGoodValue() %></td>
<td>
<a href="/AddGood?id=<%=single.getGoodId()%>&userName=<%=userName%>">
<img src="https://img.51miz.com/Element/00/79/78/04/372c7712_E797804_81ee5239.png" width="20" height="20"/>
</a>
<strong><%=single.getGoodNum()%></strong>
<a href="/RemoveGood?id=<%=single.getGoodId()%>&userName=<%=userName%>">
<img src="https://th.bing.com/th/id/Rcde7b52d6b859e47df4f30a4980b9463?rik=AcAi8g%2bYJfQoDA&riu=http%3a%2f%2fbpic.588ku.com%2felement_pic%2f01%2f35%2f82%2f18573bf7012f19d.jpg&ehk=VxpGi3%2fpJexj4F4DOLo6a5gL1h6XaX%2b%2b51f6TPL7iGI%3d&risl=&pid=ImgRaw" width="20" height="20"/>
</a>
</td>
<td><a href="/RemoveOrder?id=<%=single.getGoodId()%>&userName=<%=userName%>">移除</a></td>
</tr>
<%
}
}
%>
<tr height="50">
<td colspan="3" align="left" ><h4>应付金额：<%= total %></h4></td>
<br>
</tr>
<tr align="center" height="50">
<td align="left" colspan="3"><a href="showgoods.jsp">继续购物</a></td>
<td align="right" colspan="3"><a href="/RemoveAllGood?userName=<%=userName%>">清除订单</a></td>
</tr>
</table>
</body>
</html>
<%@page import="java.util.ArrayList"%>
<%@page import="org.example.controllor.SelectGoodServlet" %>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="org.example.api.entity.Good" %>
<%@ page import="org.example.api.entity.GoodList" %>
<%@ page import="java.security.Principal" %>
<jsp:useBean id="goodList" class="org.example.api.entity.GoodList" scope="session"/>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>黑市</title>
<link href="styles.css" type="text/css" rel="stylesheet" />
</head>
<body>
<%
response.setContentType("text/html;charset=UTF-8");
request.setCharacterEncoding("UTF-8");
%>
<%
HttpSession httpSession = request.getSession();
ArrayList <Good> goodsList = new ArrayList<Good>();
String userName = (String) httpSession.getAttribute("userName");
goodsList = (ArrayList<Good>) httpSession.getAttribute("Array");
String ji = request.getAttribute("ji") + "请重新刷新商品页面以查看全部商品";
%>
<a href="/SelectGood">点击刷新商品</a>
<script>alert("<%=ji%>")</script>
<table>
<tr height="50">
<td colspan="3" align="center" ><h1> 黑市商城</h1></td>
</tr>
<tr align="center" height="30" bgcolor="lightgrey">
<td></td>
<td>名称</td>
<td>价格</td>
<td>购买</td>
</tr>
<% if(goodsList == null || goodsList.size() == 0){ %>
<tr height="100">
<td colspan="3" align="center">没有商品可以显示！<br>
请尝试刷新商品！</td>
</tr>
<%
}else{
for(int i = 0; i < goodsList.size(); i++){
Good single =goodsList.get(i);
%>
<tr align="center" height="50">
<td>
<a href="/SRemoveGood?userName=<%=userName%>&id=<%=single.getGoodId()%>">
<img src="https://img.51miz.com/Element/00/77/34/97/c78a8ea1_E773497_8e853fd8.png" width="30" height="30"/>
</a>
</td>
<td><%= single.getGoodName() %></td>
<td><%= single.getGoodValue() %></td>
<td>
<a href="/InsertGood?id=<%=single.getGoodId()%>&name=<%=single.getGoodName()%>&value=<%=single.getGoodValue()%>&userName=<%=userName%>">购买</a>
</td>
</tr>
<%
}
}
%>
<tr align="center" height="50">
<td align="left" colspan="3">
<a href="/SAddGood.jsp?userName=<%=userName%>">
添加商品
</a>
</td>
<td align="right" colspan="3"><a href="showcar.jsp">查看订单</a></td>
</tr>
</table>
</body>
</html>
@charset "UTF-8";
table{
border: 1px;
width: 500px;
rules: none;
cellspacing:0px;
cellpadding:0px;
}
tr{
height: 50px;
}
td{
width:100px;
}
a:link {
text-decoration: none;
}
a:visited {
text-decoration: none;
}
a:hover {
text-decoration: none;
}
a:active {
text-decoration: none;
}
dao层
selectGood
```clike
package org.example.dao;
import java.sql.SQLException;
public interface IGoodDao {
/**
* 查询全部商品
* @return
* @throws SQLException
*/
boolean selectGood() throws SQLException;
/**
* 根据商品id查询特定商品
* @param id
* @return
* @throws SQLException
*/
boolean select(String id) throws SQLException;
}
package org.example.dao;
import java.sql.SQLException;
public interface IOrderDao {
/**
* 根据订单id及所传的userName查询订单
* @param orderId
* @param userName
* @return
* @throws SQLException
*/
boolean selectOrder(String orderId , String userName) throws SQLException;
/**
* 查询全部订单
* @return
* @throws SQLException
*/
boolean select() throws SQLException;
}
package org.example.dao;
import java.sql.SQLException;
public interface IUserDao {
/**
* 根据用户账号查询用户
* @param userName
* @return
* @throws SQLException
*/
boolean loginUser(String userName) throws SQLException;
/**
* 根据用户名及密码查询特定用户
* @param userName
* @param userPassword
* @return
* @throws SQLException
*/
boolean loginUser1(String userName,String userPassword)throws SQLException;
}
selectGood
package org.example.dao.impl;
import org.example.dao.IUserDao;
import org.example.api.utils.JavaDateConnectionUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class selectGood implements IUserDao {
int a=0;
JavaDateConnectionUtils javaDateConnectionUtils = new JavaDateConnectionUtils();
Connection connection = javaDateConnectionUtils.getConn();
@Override
public boolean loginUser(String userName) throws SQLException {
String iSql = "select * from t_user where userName=?";
PreparedStatement preparedStatement = null;
preparedStatement = connection.prepareStatement(iSql);
preparedStatement.setString(1,userName);
ResultSet re= preparedStatement.executeQuery();
while (re.next()){
a++;
System.out.println(re.getString("userName")+""+re.getString("userPassword"));
}if (a!=0){
System.out.println("查询成功");
preparedStatement.close();
connection.close();
return true;}
else {
preparedStatement.close();
connection.close();
System.out.println("查询失败");
return false;
}
}
@Override
public boolean loginUser1(String userName, String userPassword) throws SQLException {
String iSql = "select * from t_user where userName=? and userPassword=?";
PreparedStatement preparedStatement = null;
preparedStatement = connection.prepareStatement(iSql);
preparedStatement.setString(1,userName);
preparedStatement.setString(2,userPassword);
ResultSet re= preparedStatement.executeQuery();
while (re.next()){
a++;
System.out.println(re.getString("userName")+""+re.getString("userPassword"));
}if (a!=0){
System.out.println("查询成功");
preparedStatement.close();
connection.close();
return true;}
else {
preparedStatement.close();
connection.close();
System.out.println("查询失败");
return false;
}
}
}
impl.OrderDaoImpl
package org.example.dao.impl;
import org.example.dao.IOrderDao;
import org.example.api.utils.JavaDateConnectionUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class OrderDaoImpl implements IOrderDao {
int a = 0;
JavaDateConnectionUtils javaDateConnectionUtils = new JavaDateConnectionUtils();
Connection connection = javaDateConnectionUtils.getConn();
@Override
public boolean selectOrder(String orderId , String userName) throws SQLException {
String iSql = "select * from t_order where orderId=? and userName=?";
PreparedStatement preparedStatement = null;
preparedStatement = connection.prepareStatement(iSql);
preparedStatement.setString(1, orderId);
preparedStatement.setString(2,userName);
ResultSet re = preparedStatement.executeQuery();
while (re.next()) {
a++;
System.out.println(re.getString("orderId")+re.getString("userName"));
}
if (a != 0) {
System.out.println("查询成功");
preparedStatement.close();
connection.close();
return true;
} else {
preparedStatement.close();
connection.close();
System.out.println("查询失败");
return false;
}
}
public boolean select () throws SQLException {
String iSql = "select * from t_order ";
PreparedStatement preparedStatement = null;
preparedStatement = connection.prepareStatement(iSql);
ResultSet re = preparedStatement.executeQuery();
while (re.next()) {
a++;
System.out.println(re.getString("orderId"));
}
if (a != 0) {
System.out.println("查询成功");
preparedStatement.close();
connection.close();
return true;
} else {
preparedStatement.close();
connection.close();
System.out.println("查询失败");
return false;
}
}
}
impl.GoodDaoImpl
package org.example.dao.impl;
import org.example.api.utils.JavaDateConnectionUtils;
import org.example.dao.IGoodDao;
import org.example.api.utils.JavaDateConnectionUtils;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class GoodDaoImpl implements IGoodDao {
int a=0;
JavaDateConnectionUtils javaDateConnectionUtils = new JavaDateConnectionUtils();
Connection connection = javaDateConnectionUtils.getConn();
@Override
public boolean selectGood() throws SQLException {
String iSql = "select * from t_good ";
PreparedStatement preparedStatement = null;
preparedStatement = connection.prepareStatement(iSql);
ResultSet re= preparedStatement.executeQuery();
while (re.next()){
a++;
System.out.println(re.getString("goodId")+""+re.getString("goodName"));
}if (a!=0){
System.out.println("查询成功");
preparedStatement.close();
connection.close();
return true;}
else {
preparedStatement.close();
connection.close();
System.out.println("查询失败");
return false;
}
}
public boolean select(String id) throws SQLException {
String iSql = "select * from t_good where goodId=?";
PreparedStatement preparedStatement = null;
preparedStatement = connection.prepareStatement(iSql);
preparedStatement.setString(1,id);
ResultSet re= preparedStatement.executeQuery();
while (re.next()){
a++;
System.out.println(re.getString("goodId")+""+re.getString("goodName"));
}if (a!=0){
System.out.println("查询成功");
preparedStatement.close();
connection.close();
return true;}
else {
preparedStatement.close();
connection.close();
System.out.println("查询失败");
return false;
}
}
}
service层
IUserService
```clike
package org.example.api;
import java.sql.SQLException;
public interface IUserService {
/**
* 用户增加接口
* @param
* @return boolean
*/
boolean insertUser(String userName,String userPassword) throws SQLException;
/**
* 用户登录接口
* @param userName
* @return
*/
boolean loginUser(String userName) throws SQLException;
}
package org.example.api;
import java.sql.SQLException;
public interface IOrderService {
/**
*根据订单id 及 登录的userName来查询订单
* @param orderId
* @param userName
* @return
* @throws SQLException
*/
boolean selectOrder(String orderId , String userName) throws SQLException;
/**
* 查询全部订单
* @return
* @throws SQLException
*/
boolean select() throws SQLException;
}
IGoodService
package org.example.api;
import java.sql.SQLException;
public interface IGoodService {
/**
* 查询全部商品
* @return
* @throws SQLException
*/
boolean selectGood () throws SQLException;
/**
* 根据商品id查询特定商品
* @param id
* @return
* @throws SQLException
*/
boolean select(String id) throws SQLException;
}
UserServiceImpl
package org.example.service.impl;
import org.example.api.IUserService;
import org.example.dao.IUserDao;
import org.example.dao.impl.UserDaoImpl;
import java.sql.SQLException;
import java.sql.SQLRecoverableException;
public class UserServiceImpl implements IUserService {
IUserDao iUserDao = new UserDaoImpl();
public boolean insertUser(String userName,String userPasswprd) throws SQLException {
return iUserDao.loginUser1(userName,userPasswprd);
}
@Override
public boolean loginUser(String userName) throws SQLException {
return iUserDao.loginUser(userName);
}
}
OrderServiceImpl
package org.example.service.impl;
import org.example.api.IOrderService;
import org.example.dao.IOrderDao;
import org.example.dao.impl.OrderDaoImpl;
import java.sql.SQLException;
public class OrderServiceImpl implements IOrderService {
IOrderDao iOrderDao = new OrderDaoImpl();
public boolean selectOrder(String orderId , String userName) throws SQLException {
return iOrderDao.selectOrder(orderId,userName) ;
}
public boolean select() throws SQLException {
return iOrderDao.select();
}
}
GoodServiceImpl
package org.example.service.impl;
import org.example.dao.impl.GoodDaoImpl;
import org.example.api.IGoodService;
import org.example.api.IGoodService;
import org.example.dao.IGoodDao;
import java.sql.SQLException;
public class GoodServiceImpl implements IGoodService {
IGoodDao iGoodDao = new GoodDaoImpl();
@Override
public boolean selectGood() throws SQLException {
return iGoodDao.selectGood();
}
@Override
public boolean select(String id) throws SQLException {
return iGoodDao.select(id);
}
}
utils层
JavaDateConnectionUtils
```java
package org.example.api.utils;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class JavaDateConnectionUtils {
/**
* 获取数据库连接
*
* @return Connection
*/
public Connection getConn() {
String url = "jdbc:mysql://localhost:3306/project?serverTimezone=UTC";
String username = "root";
String password = "Hyk59308";
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");
//classLoader,加载对应驱动
conn = DriverManager.getConnection(url, username, password);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return conn;
}
}
MyTools
package org.example.api.utils;
import java.io.UnsupportedEncodingException;
public class MyTools {
public static String toChinese(String str) {
if(str == null) {
str="";
}
try {
str = new String(str.getBytes("ISO-8859-1"),"gb2312");
}catch(UnsupportedEncodingException e) {
str="";
e.printStackTrace();
}
return str;
}
public static int strToInt(String str) {
if(str == null || str.equals("")) {
str = "0";
}
int i = 0;
try {
i = Integer.parseInt(str);
}catch(NumberFormatException e) {
i = 0;
e.printStackTrace();
}
return i;
}
}
日志配置
<?xml version="1.0" encoding="UTF-8"?>
<!--日志级别以及优先级排序: OFF > FATAL > ERROR > WARN > INFO > DEBUG > TRACE > ALL-->
<!--Configuration后面的status，这个用于设置log4j2自身内部的信息输出，可以不设置，当设置成trace时，你会看到log4j2内部各种详细输出-->
<!--monitorInterval：Log4j能够自动检测修改配置 文件和重新配置本身，设置间隔秒数-->
<configuration status="INFO" monitorInterval="30">
<!--先定义所有的appender-->
<appenders>
<!--这个输出控制台的配置-->
<console name="Console" target="SYSTEM_OUT">
<!--输出日志的格式-->
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
</console>
<!--文件会打印出所有信息，这个log每次运行程序会自动清空，由append属性决定，这个也挺有用的，适合临时测试用-->
<File name="log" fileName="${sys:user.home}/logs/test.log" append="false">
<PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>
</File>
<!-- 这个会打印出所有的info及以下级别的信息，每次大小超过size，则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档-->
<RollingFile name="RollingFileInfo" fileName="${sys:user.home}/logs/info.log"
filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log">
<!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch）-->
<ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="100 MB"/>
</Policies>
</RollingFile>
<RollingFile name="RollingFileWarn" fileName="${sys:user.home}/logs/warn.log"
filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
<ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="100 MB"/>
</Policies>
<!-- DefaultRolloverStrategy属性如不设置，则默认为最多同一文件夹下7个文件，这里设置了20 -->
<DefaultRolloverStrategy max="20"/>
</RollingFile>
<RollingFile name="RollingFileError" fileName="${sys:user.home}/logs/error.log"
filePattern="${sys:user.home}/logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log">
<ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>
<PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
<SizeBasedTriggeringPolicy size="100 MB"/>
</Policies>
</RollingFile>
</appenders>
<!--然后定义logger，只有定义了logger并引入的appender，appender才会生效-->
<loggers>
<!-- <!–过滤掉spring和mybatis的一些无用的DEBUG信息–>-->
<!-- <logger name="org.springframework" level="INFO"></logger>-->
<!-- <logger name="org.mybatis" level="INFO"></logger>-->
<root level="INFO">
<appender-ref ref="Console"/>
<appender-ref ref="RollingFileInfo"/>
<appender-ref ref="RollingFileWarn"/>
<appender-ref ref="RollingFileError"/>
</root>
</loggers>
</configuration>