沿着昨天整理好的页面，今天实现list页面中的修改，
User update框架
需要的效果图：
先看用户查询界面，
修改id为4的那个用户：
修改后返回用户查看界面。
1 .先是从list界面开始，在昨天的代码基础上，实现修改功能：
2.携带被修改用户的Id属性，跳转到UserModifyServlet：
package com.jaovo.jcms.user;
importjava.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.jaovo.jcms.service.UserService;publicclassUserModifyServlet extends HttpServlet{PRivatestaticfinallongserialVersionUID =1L;
@Overrideprotectedvoidservice(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {//获得客户端传过来的数据String id = request.getParameter("id");
System.out.println(id);
UserService userService=newUserService();
User user=userService.getUserById(Integer.parseInt(id));
request.setAttribute("user", user);this.getServletContext().getRequestDispatcher("/admin/user_update.jsp").forward(request, response);
}
}
3.用UserModifyServlet携带的Id，获取该用户的属性，并跳转到update界面，依然是在Eclips工具中写一个user_update.jsp：
<%@page import="com.jaovo.jcms.util.PageList"%>
<%@ page language="java"contentType="text/html; charset=utf-8"pageEncoding="utf-8"%>
<%@ page import="com.jaovo.jcms.user.*"%>
<%@ page import="java.util.*"%>
<%@ page import="com.jaovo.jcms.util.*"%>
<%String path=request.getContextPath();
String basePath= request.getScheme() +"://"+ request.getServerName() +":"+request.getServerPort()+ path +"/";%>
<html>
<head>
<basehref="<%=basePath%>"/>
<title>用户修改</title>
<link rel="stylesheet"type="text/CSS"title="xp"href="css/skins/xp/validator/component.css"/>
<link rel="stylesheet"type="text/css"title="xp"href="css/skins/xp/navbar/nav.css"/>
<link rel="stylesheet"type="text/css"title="xp"href="css/skins/xp/table/skin.css"/>
<link rel="stylesheet"type="text/css"title="xp"href="css/skins/xp/time/skin.css"/>
<script type="text/Javascript"src="jscript/time/calendar.js"></script>
<script type="text/javascript"src="jscript/time/calendar-zh.js"></script>
<script type="text/javascript"src="jscript/time/calendar-setup.js"></script>
<script type="text/javascript"src="jscript/common.js"></script>
<script type="text/javascript"src="jscript/validator/form_validator.js"/></script>
<script type="text/javascript">varvalidatedInfo ="correct";varrequireErrorInfo ="required<br/>";varmsgInfo =newArray();
msgInfo[0] =newArray('name required','name error');varname =newformEle(true,"no",null,"name_info",msgInfo[0]);
msgInfo[0] =newArray('pwd required','pwd error');varpassWord=newformEle(true,"no",null,"password_info",msgInfo[0]);
msgInfo[0] =newArray('description required','description error');vardescription =newformEle(true,"no",null,"description_info",msgInfo[0]);
msgInfo[0] =newArray('role required','role error');varrole =newformEle(true,"no",null,"role_info",msgInfo[0]);
msgInfo[0] =newArray('valid required','please input number like 1 ,2 ,3');varvalid =newformEle(true,"num",null,"valid_info",msgInfo[0]);
msgInfo[0] =newArray('email required','email error');varemail =newformEle(true,"no",null,"email_info",msgInfo[0]);
function submitForm(obj) {varret =validateAll(obj);if(ret ==true) {if(document.forms[0].submit) {
document.forms[0].submit.disabled =true;
}
}returnret;
}</script>
<style type="text/css">body,table,td,select,textarea,input {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 11px;
}</style>
</head>
<%User user= (User)request.getAttribute("user");%>
<body>
<div id="main">
<form name="backuserform"method="post"action="admin/UserModifiedServlet"onSubmit=''>
<tableclass="standard">
<thead>
<tr>
<th align="center"colspan="2">用户修改</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">用户名</td>
<td align="left">
<input name="name"type="text"TABINDEX="1"id="name"value="<%=user.getName() %>"/>
<input name="id"type="hidden"TABINDEX="1"value="<%=user.getId() %>"/>
<divclass="Info">
<div id="name_info"></div>
</div>
</td>
</tr>
<tr>
<td align="left">用户密码</td>
<td align="left">
<input name="password"type="password"value=""TABINDEX="2"id="password"value="<%=user.getPassword()%>"/>
<divclass="Info">
<div id="password_info"></div>
</div>
</td>
</tr>
<tr>
<td align="left">角色</td>
<td align="left">
<selectname="role"TABINDEX="3"id="role">
<option value="1">超级管理员</option>
</select>
<divclass="Info">
<div id="role_info"></div>
</div>
</td>
</tr>
<tr>
<td align="left">是否有效</td>
<td align="left">
<selectname="valid"TABINDEX="4"id="valid">
<option value="1">有</option>
<option value="0">无</option>
</select>
<divclass="Info">
<div id="valid_info"></div>
</div>
</td>
</tr>
<tr>
<td align="left">EMAIL</td>
<td align="left">
<input name="email"type="text"value="<%=user.getEmail() %>"TABINDEX="5"id="email"/>
<divclass="Info">
<div id="email_info"></div>
</div>
</td>
</tr>
<tr>
<td align="left">Phone</td>
<td align="left"><input name="phone"type="text"value="<%=user.getPhone() %>"TABINDEX="5"id="phone"/>
<divclass="Info">
<div id="phone_info"></div>
</div></td>
</tr>
<tr>
<td colspan="2"align="center">
<inputclass="submitButton"type="submit"TABINDEX="6"name="submit"value="修 改">
<input type="button"name="返回"class="submitButton"value="返回"onclick="history.back();">
</td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="2"style="text-align: left"></td>
</tr>
</tfoot>
</table>
</form>
</div>
</body>
</html>
4.需要一个ModifiedServlet.java
package com.jaovo.jcms.user;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.jaovo.jcms.service.UserService;publicclassUserModifiedServlet extends HttpServlet{privatestaticfinallongserialVersionUID =1L;//这里以前没有@Overrideprotectedvoidservice(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String id= request.getParameter("id");
String name= request.getParameter("name");
String password= request.getParameter("password");
String valid= request.getParameter("valid");
String email= request.getParameter("email");
String phone= request.getParameter("phone");
User user=newUser();
user.setId(Integer.parseInt(id));
user.setName(name);
user.setPassword(password);
user.setValid(Integer.parseInt(valid));
user.setEmail(email);
user.setPhone(phone);
UserService userService=newUserService();
userService.updateUser(user);this.getServletContext().getRequestDispatcher("/admin/UserListServlet").forward(request, response);//从一个Servlet到另外一个Servlet是同一个request对象}
}
5.跳转到UserListServlet，同时携带ModifiedServlet的request和response对象，最后在list界面中显示出修改后的用户信息。
以上就是这次优化的所有代码，后面还会持续优化，望大家斧正。
2015-10-09 09:06:38
生命不息，代码不止！