实现查询客户列表、新增客户信息、客户权限控制（登录权限）
效果 :
实现代码 :
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>拦截器
public class PrivilegeInterceptor extends MethodFilterInterceptor{
@Override
protected String doIntercept(ActionInvocation actionInvocation) throws Exception {
User user = (User) ServletActionContext.getRequest().getSession().getAttribute("user");
if(user==null){
return "login";
}
return actionInvocation.invoke();
}
}
Action
//登录action
@ParentPackage(value = "test")
@Namespace("/")
@Results({
@Result(name = "index",type = "redirect",location = "/index.jsp"),
@Result(name = "save",type = "redirectAction",location = "customer_list.action"),
@Result(name = "login",location = "/login.jsp"),
@Result(name = "list",location = "/jsp/customer/list.jsp"),
@Result(name = "none",location = "/jsp/customer/add.jsp")
})
public class UserAction extends ActionSupport implements ModelDriven<User> {
@Action(value = "user_login")
public String login(){
if("hanne".equals(user.getUsername())&&"hanne".equals(user.getPassword())){
ServletActionContext.getRequest().getSession().setAttribute("user",user);
return "index";
}
return "login";
}
private User user = new User();
@Override
public User getModel() {
return user;
}
}
//新增客户信息跳转登录action
@ParentPackage(value = "test")
@Namespace("/")
@Results({
@Result(name = "index",type = "redirect",location = "/index.jsp"),
@Result(name = "save",type = "redirectAction",location = "customer_list.action"),
@Result(name = "login",location = "/login.jsp"),
@Result(name = "list",location = "/jsp/customer/list.jsp"),
@Result(name = "none",location = "/jsp/customer/add.jsp")
})
public class ActionSave1 extends ActionSave {
@Action(value = "action_save1")
public String redirect(){
return NONE;
}
}
//新增客户信息action
@ParentPackage(value = "test")
@Namespace("/")
@Results({
@Result(name = "index",type = "redirect",location = "/index.jsp"),
@Result(name = "save",type = "redirectAction",location = "customer_list.action"),
@Result(name = "login",location = "/login.jsp"),
@Result(name = "list",location = "/jsp/customer/list.jsp"),
@Result(name = "none",location = "/jsp/customer/add.jsp")
})
public class ActionSave extends ActionSupport implements ModelDriven<Customer> {
@Action(value = "action_save")
public String save(){
CustomerService service = new CustomerServiceImpl();
service.save(customer);
return "save";
}
private Customer customer = new Customer();
@Override
public Customer getModel() {
return customer;
}
}
//查询客户列表action
@ParentPackage(value = "test")
@Namespace("/")
@Results({
@Result(name = "index",type = "redirect",location = "/index.jsp"),
@Result(name = "save",type = "redirectAction",location = "customer_list.action"),
@Result(name = "login",location = "/login.jsp"),
@Result(name = "list",location = "/jsp/customer/list.jsp"),
@Result(name = "none",location = "/jsp/customer/add.jsp")
})
public class CustomerAction extends ActionSupport {
@Action(value = "customer_list")
public String list(){
CustomerService customerService = new CustomerServiceImpl();
List<Customer> customerList = customerService.findAll();
//存储到request域
HttpServletRequest request = ServletActionContext.getRequest();
request.setAttribute("customerList", customerList);
return "list";
}
}struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.devMode" value="true"></constant>
<package name="test" namespace="/" extends="struts-default">
<!--声明拦截器-->
<interceptors>
<interceptor name="privilege" class="com.itheima.action.interceptor.PrivilegeInterceptor"></interceptor>
<interceptor-stack name="my">
<interceptor-ref name="defaultStack"></interceptor-ref>
<interceptor-ref name="privilege">
<param name="excludeMethods">login,regist</param>
</interceptor-ref>
</interceptor-stack>
</interceptors>
<!--配置默认拦截器-->
<default-interceptor-ref name="my"></default-interceptor-ref>
<!--全局视图-->
<!--<global-results>
<result name="index" type="redirect">/index.jsp</result>
<result name="login">/login.jsp</result>
</global-results>-->
<!--配置资源路径-->
<!--<action name="action_save" method="save" class="com.itheima.action.ActionSave"></action>-->
<!--<action name="customer_*" class="com.itheima.action.CustomerAction" method="{1}">
<result name="list">/jsp/customer/list.jsp</result>
</action>-->
<!--<action name="user_*" class="com.itheima.action.UserAction" method="{1}"></action>-->
</package>
</struts>实体类（需要get、set方法）
//JPA需要的注解
@Entity
//配置实体类与数据库表的注解
@Table(name = "cst_customer")
public class Customer {
//数据库表中特殊的字段:id
@Id
//如果表字段名与实体类属性名一致,可以不需要填写name属性
@Column(name = "cust_id")
//主键规则
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long cust_id;//客户编号(主键)
//配置普通字段名与属性名
@Column(name = "cust_name")
private String cust_name;//客户名称(公司名称)
//当属性名与数据库中的字段名称一致时 那么@Column可以省略
private String cust_source;//客户信息来源
private String cust_industry;//客户所属行业
private String cust_level;//客户级别
private String cust_phone;//固定电话
private String cust_mobile;//移动电话
/*
private Set<Linkman> linkmanSet = new HashSet<Linkman>();//多的一方集合
}Customer.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<!-- 配置实体与表的关系
name: 要映射的实体的全限定名
table: 要映射的表的名称
-->
<class name="com.itheima.domain.Customer" table="cst_customer">
<!-- 配置实体的属性和表的字段的关系
在hibenrate中id具备特殊地位 修改、删除等默认都是根据id执行的
id标签
name：实体中的id的属性名称
column：表中的id的字段名称
主语：不管是id还是普通属性 当实体的属性名称 与 表的字段名称 一致时 此时column可以省略
-->
<id name="cust_id">
<!-- 主键生成策略 -->
<generator class="native"></generator>
</id>
<!-- 配置普通属性
name：实体中的属性名称
column：表中的字段名称
-->
<property name="cust_name"></property>
<property name="cust_source"></property>
<property name="cust_industry" column="cust_industry"></property>
<property name="cust_level" column="cust_level"></property>
<property name="cust_phone" column="cust_phone"></property>
<property name="cust_mobile" column="cust_mobile"></property>
</class>
</hibernate-mapping>业务层代码
public interface CustomerService {
List<Customer> findAll();
void save(Customer customer);
}
public class CustomerServiceImpl implements CustomerService {
@Override
public List<Customer> findAll() {
CustomerDao customerDao = new CustomerDaoImpl();
return customerDao.findAll();
}
@Override
public void save(Customer customer) {
CustomerDao dao = new CustomerDaoImpl();
dao.save(customer);
}
}
持久层代码
public interface CustomerDao {
List<Customer> findAll();
void save(Customer customer);
}
public class CustomerDaoImpl implements CustomerDao {
@Override
public List<Customer> findAll() {
Session session = HibernateUtils.openSession();
Transaction transaction = session.beginTransaction();
Query query = session.createQuery("from Customer");
List<Customer> list = query.list();
transaction.commit();
session.close();
return list;
}
@Override
public void save(Customer customer) {
Session session = HibernateUtils.openSession();
Transaction transaction = session.beginTransaction();
session.save(customer);
transaction.commit();
HibernateUtils.close(session);
}
}工具类
public class HibernateUtils {
private static Configuration configuration = null;
private static SessionFactory sessionFactory = null;
static {
configuration = new Configuration().configure();
sessionFactory = configuration.buildSessionFactory();
}
public static Session openSession(){
return sessionFactory.openSession();
}
public static void close(Session session){
if(session!=null){
session.close();
}
}
}hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<!--
session工厂：造session对象
session对象：会话对象 hibernate与数据库的连接对象
session工厂内部需要配置三部分内容
1、数据源信息
2、hibernate其他配置参数
3、加载映射关系
-->
<session-factory>
<!-- 1、数据源信息 -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql:///hibernate</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<!-- 2、hibernate的其他配置参数 -->
<!-- 2.1 配置数据库方言 -->
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- 2.2 控制台是否打印sql语句 -->
<property name="hibernate.show_sql">true</property>
<!-- 2.3 格式化sql语句 -->
<property name="hibernate.format_sql">true</property>
<!-- 2.4 ddl策略
PS:
ddl:数据定义语言：定义数据表和数据库
dml:数据操作语言：对数据的增删改操作
dql:数据查询语言：对数据的查询操作
dcl:数据控制语言：对数据库的权限 用户等操作
取值:
create-drop: 创建删除 用于测试
create:创建 用于测试
validate: 检测 必须存在表且映射关系与表的结构一致 可以用于生产环境
update: 更新 档映射关系与数据表结构只要不一致 自动更新表结构 可以用于生产环境（使用最多）
-->
<property name="hibernate.hbm2ddl.auto">update</property>
<!-- 2.5 指定第三方的数据源 c3p0
导入hibernate-release-5.0.7.Final\lib\optional\c3p0\*.jar
-->
<!--<property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>-->
<!-- 2.6 配置session与当前线程绑定：了解
注意：后期集成spring之后 与线程绑定这件事情不需要我们操作 spring自动操作
-->
<property name="hibernate.current_session_context_class">thread</property>
<!-- 3、加载映射 -->
<mapping resource="com/itheima/domain/Customer.hbm.xml"/>
</session-factory>
</hibernate-configuration>项目代码war包：链接：https://download.csdn.net/download/aiyowei1106/10596460