Campus Catering Delivery System Based on WeChat Mini Program
The campus catering distribution system is developed based on WeChat applets, java programming language, mysql database, idea tools, and ssm framework. This system is divided into four roles: students, delivery staff, merchants, and administrators. Students can log in online to order and submit orders to view order delivery information. The delivery staff can view the order information of the students and receive orders online. Merchants can manage and upload dish information online, view and manage delivery order information. The administrator can manage student information, business information, delivery information, food information, food type and order information, etc. This system is fully functional, and the documents include defense ppt and thesis, which is suitable for reference and learning of WeChat mini-program graduation design and course design.
1. Technical environment
jdk version: 1.8 and above
ide tool: IDEA, WeChat applet development tool
database: mysql5.7 (must be 5.7)
programming language: Java
tomcat: 8.0 and above
java framework: ssm
maven: 3.6.1
front end: layui, WeChat, vue
Detailed technology: HTML+CSS+JS+vue+JAVA+ssm+MYSQL+JQUERY+MAVEN+WeChat development tools
2. Project documents (please refer to the official website at the end of the article for project acquisition)
3. System function
4. Code example
package com.lmu.controller;
/**
* 和登陆有关的都在这里
*/
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.lmu.model.Role;
import com.lmu.model.User;
import com.lmu.service.RoleService;
import com.lmu.service.UserService;
import com.lmu.utils.JsonUtils;
import com.lmu.utils.UserUtils;
import org.apache.commons.collections.map.HashedMap;
import org.apache.struts2.ServletActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
@Controller("loginController")
@Scope("prototype")
public class LoginController extends ActionSupport {
@Autowired
private UserService userService;
@Autowired
private RoleService roleService;
private User user;
private Map<String, Object> map = new HashMap();
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public UserService getUserService() {
return userService;
}
public void setUserService(UserService userService) {
this.userService = userService;
}
/**
* 用户登陆
* @return
*/
public void index() throws IOException {
User user1 = userService.getUser(user);
if (user1 != null){
if (user1.getIsSh() == 1){
if (user1.getRole().getEnName().equals("admin")){
ActionContext.getContext().getSession().put("user", user1);
}
if (user1.getRole().getEnName().equals("js")){
ActionContext.getContext().getSession().put("user1", user1);
}
if (user1.getRole().getEnName().equals("xs")){
ActionContext.getContext().getSession().put("user2", user1);
}
map.put("flag", 1);
map.put("url", "login_indexs.do");
map.put("id", user1.getId());
JsonUtils.toJson(map);
} else {
map.put("flag", 2);
JsonUtils.toJson(map);
}
} else {
map.put("flag", 3);
JsonUtils.toJson(map);
}
}
public String indexs() throws IOException {
User u = UserUtils.getUser();
if (u != null){
ActionContext.getContext().put("user", u);
String ss = u.getRole().getEnName();
ActionContext.getContext().put("role", u.getRole().getEnName());
}
return SUCCESS;
}
//登陆页面
public String login() {
return SUCCESS;
}
//退出
public String tuichu() {
ActionContext ac = ActionContext.getContext();
Map session = ac.getSession();
session.remove("userName");
session.remove("userId");
ServletActionContext.getRequest().getSession().invalidate();
return "login";
}
}
package com.lmu.controller;
/**
* 用户新增
*/
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.lmu.model.Role;
import com.lmu.model.User;
import com.lmu.service.RoleService;
import com.lmu.service.UserService;
import com.lmu.utils.JsonUtils;
import com.lmu.utils.Pager;
import com.lmu.utils.UserUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import java.awt.event.FocusEvent;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
@Controller("userController")
@Scope("prototype")
public class UserController extends ActionSupport implements ModelDriven<User> {
@Autowired
private UserService userService;
@Autowired
private RoleService roleService;
private User user;
private Integer userId;
private Map<String, Object> map = new HashMap();
/**
* list
*
* @return
*/
public String list() throws IOException {
User user1 = UserUtils.getUser();
if (user1 == null || user1.getId() == null){
ActionContext.getContext().put("login", 1);
return SUCCESS;
}
Pager<User> pagers = null;
Role role = user1.getRole();
if (role.getEnName().equals("admin")) {
pagers = userService.getList(user);
ActionContext.getContext().put("pagers", pagers);
ActionContext.getContext().put("user", user1);
ActionContext.getContext().put("role", role);
ActionContext.getContext().put("bean", user);
return SUCCESS;
} else if (role.getEnName().equals("xs") || role.getEnName().equals("js")) {
pagers = userService.getList(user1);
ActionContext.getContext().put("pagers", pagers);
ActionContext.getContext().put("bean", user);
return SUCCESS;
}
return null;
}
/**
* 跳转add
*
* @return
*/
public String add() {
Pager<Role> pagers = roleService.pagers();
ActionContext.getContext().put("pagers", pagers);
return SUCCESS;
}
/**
* 查询修改
*
* @return
*/
public String edit() {
User bean = userService.findById(userId);
Pager<Role> pagers = roleService.pagers();
ActionContext.getContext().put("bean", bean);
ActionContext.getContext().put("pagers", pagers);
return SUCCESS;
}
/**
* 审核
*
* @return
*/
public void updateSh() throws IOException {
user.setIsSh(1);
userService.updates(user);
map.put("flag", true);
map.put("url", "user_list.do");
JsonUtils.toJson(map);
}
/**
* 更新
*
* @return
*/
public String update() throws IOException {
if (user.getPass().equals("")){
user.setPass(null);
}
userService.updates(user);
map.put("flag", true);
map.put("url", "user_list.do");
JsonUtils.toJson(map);
return SUCCESS;
}
/**
* 保存
*
* @return
*/
public void save() throws IOException {
if (userService.getUser(user) != null){
map.put("flag", false);
map.put("url", "login_login.do");
JsonUtils.toJson(map);
} else {
user.setTime(new Date());
userService.save(user);
map.put("flag", true);
map.put("url", "login_login.do");
JsonUtils.toJson(map);
}
}
public void delete() throws IOException {
User user1 = userService.findById(userId);
user1.setIsDelete(1);
userService.update(user1);
map.put("flag", true);
map.put("url", "user_list.do");
JsonUtils.toJson(map);
}
@Override
public User getModel() {
if (user == null) {
user = new User();
}
return user;
}
public Integer getUserId() {
return userId;
}
public void setUserId(Integer userId) {
this.userId = userId;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
5. Screenshot of the project
