4. 完成功能.
(1)com.atguigu.ssh.actions包下新建EmployeeAction.java
1 package com.atguigu.ssh.actions;
2
3 import java.util.Map;
4
5 import org.apache.struts2.interceptor.RequestAware;
6
7 import com.atguigu.ssh.service.EmployeeService;
8 import com.opensymphony.xwork2.ActionSupport;
9
10 public class EmployeeAction extends ActionSupport implements RequestAware{
11 /**
12 *
13 */
14 private static final long serialVersionUID = 1L;
15
16 private EmployeeService employeeService;
17
18 public void setEmployeeService(EmployeeService employeeService){
19 this.employeeService=employeeService;
20 }
21
22 public String list(){
23 request.put("employees", employeeService.getAll());
24 return "list";
25 }
26
27 //放到页面里
28 private Map<String,Object> request;
29 @Override
30 public void setRequest(Map<String, Object> arg0) {
31 this.request=arg0;
32 }
33
34 }
com.atguigu.ssh.dao包下新建EmployeeDao.java
1 package com.atguigu.ssh.dao;
2
3 import java.util.List;
4
5 import org.hibernate.Session;
6 import org.hibernate.SessionFactory;
7
8 import com.atguigu.ssh.entities.Employee;
9
10 public class EmployeeDao {
11
12 private SessionFactory sessionFactory;
13
14 public void setSessionFactory(SessionFactory sessionFactory){
15 this.sessionFactory=sessionFactory;
16 }
17
18 public Session getSession(){
19 return this.sessionFactory.getCurrentSession();
20 }
21
22 public List<Employee> getAll(){
23 String hql="FROM Employee e LEFT OUTER JOIN FETCH e.department";
24 return getSession().createQuery(hql).list();
25 }
26 }
com.atguigu.ssh.service包下新建EmployeeService.java
1 package com.atguigu.ssh.service;
2
3 import java.util.List;
4
5 import com.atguigu.ssh.dao.EmployeeDao;
6 import com.atguigu.ssh.entities.Employee;
7
8 public class EmployeeService {
9
10 private EmployeeDao employeeDao;
11 public void setEmployeeDao(EmployeeDao employeeDao){
12 this.employeeDao=employeeDao;
13 }
14
15 public List<Employee> getAll(){
16 List<Employee> employees = employeeDao.getAll();
17 return employees;
18 }
19 }
(2)完善applicationContext-beans.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 5 6 <bean id="employeeDao" class="com.atguigu.ssh.dao.EmployeeDao"> 7 <property name="sessionFactory" ref="sessionFactory"></property> 8 </bean> 9 10 <bean id="employeeService" class="com.atguigu.ssh.service.EmployeeService"> 11 <property name="employeeDao" ref="employeeDao"></property> 12 </bean> 13 14 <bean id="employeeAction" class="com.atguigu.ssh.actions.EmployeeAction" 15 scope="prototype"> 16 <property name="employeeService" ref="employeeService"></property> 17 </bean> 18 </beans>
(3)完善struts.xml
1 <?xml version="1.0" encoding="UTF-8" ?>
2 <!DOCTYPE struts PUBLIC
3 "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
4 "http://struts.apache.org/dtds/struts-2.3.dtd">
5
6 <struts>
7
8 <constant name="struts.enable.DynamicMethodInvocation" value="false" />
9 <constant name="struts.devMode" value="true" />
10
11 <package name="default" namespace="/" extends="struts-default">
12 <action name="emp-*" class="employeeAction"
13 method="{1}">
14 <result name="list">/WEB-INF/views/emp-list.jsp</result>
15 </action>
16 </package>
17
18 </struts>
(4)WebContent下新建index.jsp
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>Insert title here</title> 8 </head> 9 <body> 10 <a href="emp-list">显示所有员工信息List All Employees</a> 11 </body> 12 </html>
(5)WebContent-views-emp-list.jsp
1 <%@ page language="java" contentType="text/html; charset=UTF-8"
2 pageEncoding="UTF-8"%>
3 <%@ taglib prefix="s" uri="/struts-tags" %>
4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
5 <html>
6 <head>
7 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
8 <title>Insert title here</title>
9 </head>
10 <body>
11 <h3>Employee List Page</h3>
12
13 <s:if test="#request.employees == null ||#request.size()==0">
14 没有员工信息
15 </s:if>
16 <s:else>
17 <table border="1" cellpadding="10" cellspacing="0">
18 <tr>
19 <td>ID</td>
20 <td>LASTNAME</td>
21 <td>EMAIL</td>
22 <td>BIRTH</td>
23 <td>CREATETIME</td>
24 <td>DEPT</td>
25 </tr>
26 <s:iterator value="#request.employees">
27 <tr>
28 <td>${id}</td>
29 <td>${lastName}</td>
30 <td>${email }</td>
31 <td>${birth}</td>
32 <td>${createTime}</td>
33 <td>${department.departmentName}</td>
34 </tr>
35 </s:iterator>
36 </table>
37 </s:else>
38 </body>
39 </html>
(6)修改下web.xml中的信息
1 <context-param> 2 <param-name>contextConfigLocation</param-name> 3 <param-value>classpath:applicationContext*.xml</param-value> 4 </context-param>
SSH_框架整合2;
时间： 2024-08-03 15:14:06