在用户列表页面点击修改，进入修改页面
修改薪酬为555，点击提交，重新跳回该页面
修改成功
关键代码如下
基层的代码，这里增加了一个根据用户id查询的方法
dao层
//修改
public USer modify( int user_id,USer user)
{
init() ;
//获取对象
USer us = (USer)se.get(USer.class, user_id) ;
us.setBrithday(user.getBrithday());
us.setMoney(user.getMoney());
us.setName(user.getName());
us.setPassword(user.getPassword());
us.setUser_id(user.getUser_id());
//se.saveOrUpdate(us);
destory();
return us;
}
//查询单个
public USer selectu( int user_id)
{
init() ;
//获取对象
USer us = (USer)se.get(USer.class, user_id) ;
destory();
return us;
}
用户列表页面 ，点击修改通过Action（如果页面在webcotent下可不用Action）跳转到修改页面
<%@page import="com.hanqi.utility.USer"%>
<%@page import="java.util.List"%>
<%@ 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>Insert title here</title>
</head>
<body>
<%
List<USer> list = (List<USer>)request.getAttribute("selectuser") ;
for(USer us : list )
{
out.print(us + "<a href='deleteuser?user_id="+us.getUser_id()+"'> 【删除】</a>"
+"<a href='modify?userid="+us.getUser_id()+"'> 【修改】</a>"
+"<br>") ;
}
%>
</body>
</html>
修改页面代码如下，点击提交进入Action并调用Action类的方法执行操作
1 <%@page import="com.hanqi.service.UserService"%>
2 <%@page import="com.hanqi.utility.USer"%>
3 <%@ page language="java" contentType="text/html; charset=UTF-8"
4 pageEncoding="UTF-8"%>
5 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
6 <html>
7 <head>
8 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
9 <title>Insert title here</title>
10 </head>
11 <body>
12 <%
13 int user_id = Integer.parseInt(request.getAttribute("lll").toString());
14
15 USer us = new UserService().hah(user_id) ;
16 //out.print(us) ;
17 %>
18 <form action="modifyuser.action" method="post">
19 id<input type="text" value="<%out.print(user_id) ;%>"name="us.user_id" readonly><br><br>
20 姓名<input type="text" name="us.name" value="<%out.print(us.getName()) ;%>"><br><br>
21 密码<input type="password" name="us.password" value="<%out.print(us.getPassword()) ;%>"><br><br>
22 生日<input type="text" name="us.brithday" value="<%out.print(us.getBrithday()) ;%>"><br><br>
23 薪酬<input type="text" name="us.money" value="<%out.print(us.getMoney()) ;%>"><br><br>
24 <input type="submit" value="提交" ><br>
25 </body>
26 </html>
Action类关键代码如下
1 //修改用户
2 public String modifyuser()
3 {
4 String rtn = "fail" ;
5
6 try
7 {
8 //获取user_id
9 //得到原生request
10 HttpServletRequest hsr = ServletActionContext.getRequest() ;
11
12 String userid = hsr.getParameter("us.user_id") ;
13
14 System.out.println(userid);
15
16 int user_id = Integer.parseInt(userid) ;
17
18 new UserService().modify(user_id, us); ;
19
20 rtn = "success" ;
21
22 }catch(Exception e)
23 {
24 e.printStackTrace();
25 }
26
27 return rtn;
28 }
29
30 //查询单个
31 public String selectu()
32 {
33 String rtn = "fail" ;
34
35 try
36 {
37 //获取user_id
38 //得到原生request
39 HttpServletRequest hsr = ServletActionContext.getRequest() ;
40
41 String useid = hsr.getParameter("userid") ;
42
43 int user_id = Integer.parseInt(useid) ;
44
45 /*
46 * 将从用户列表页面获取的id 放入request
47 * 目的:为了在修改页面获取当前行的用户id
48 */
49 hsr.setAttribute("lll", user_id);
50
51 //执行删除
52 new UserService().hah(user_id);
53
54 rtn = "success" ;
55
56 }catch(Exception e)
57 {
58 e.printStackTrace();
59 }
60
61 return rtn;
62 }
Struts的配置代码如下：
1 <!-- 修改 --> 2 <action name="modifyuser" class="com.hanqi.action.USerAction" method="modifyuser"> 3 4 <result name="fail">/WEB-INF/pages/fail.jsp</result> 5 6 <result name="success" type="redirectAction">selectUSer</result> 7 8 </action> 9 10 <!-- 查询单个 --> 11 <action name="modify" class="com.hanqi.action.USerAction" method="selectu"> 12 13 <result>/WEB-INF/pages/modify.jsp</result> 14 15 </action>