Hibernate+Struts2+jsp 修改用户信息

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>