请高手指教servlet
我的jsp页面接收不了servlet的发来的数据
不知道哪出问题了
以下是
userModify.jsp
<%@ page language="java" import="java.util.*,zls.market.entity.smUser" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>修改用户</title>
<link type="text/css" rel="stylesheet" href="css/style.css" />
<script type="text/javascript" src="./js/user.js"></script>
</head>
<%--<body onload="setbodydisabled()">
--%>
<body><div class="main">
<c:set var="user" value="${sessionScope.modifyuser}"></c:set>
<form method="post" >
<input name="option" type="hidden" value="<%=request.getContextPath()%>/UserServlet?option=delete_user" class="input-text" >
<div class="content">
<table class="box">
<tr>
<td class="field">用户编号：</td>
<td><input type="text" name="id" id="textfield" class="text"/ value="${user.id}"> <font color="red">*</font></td>
</tr>
<tr>
<td class="field">用户名称：</td>
<td><input type="text" name="username" class="text" id="textfield2" value="${user.loginname } "/><font color="red">*</font></td>
</tr>
<tr>
<td class="field">用户性别：</td>
<td><select name="sex" id="select">
<c:if test="${user.sex=='女'}">
<option value="女" selected=true>女</option></c:if>
<c:if test="${user.sex=='男'}">
<option value="男" selected=true>男</option></c:if>
</select>
</td>
</tr>
<tr>
<td class="field">用户年龄：</td>
<td><input type="text" name="age" class="text" id="textfield2" value="${user.age }"/> <font color="red">*</font></td>
</tr>
<tr>
<td class="field">用户电话：</td>
<td><input type="text" name="mobile" class="text" id="textfield2" value="${user.tel }"/> <font color="red">*</font></td>
</tr>
<tr>
<td class="field">用户地址：</td>
<td><textarea name="address" id="textarea" class="text" cols="45" rows="5">${user.address }</textarea></td>
</tr>
<tr>
<td class="field">用户权限：</td>
<td>
<c:choose>
<c:when test="${user.role=='0' }">
<input type="radio" name="auth" id="auth" value="0" checked="checked"/>普通用户
</c:when>
<c:when test="${user.role=='1' }">
<input type="radio" name="auth" id="auth" value="1" />经理
</c:when>
</c:choose>
</td>
</tr>
</table>
</div>
<div class="buttons">
<input type="button" id="return" name="button" value="返回" class="input-button" onclick="history.back();" />
<input type="button" id="modify" name="button" value="修改" class="input-button" onclick="return modifying(this);"/>
<input type="submit" id="del" name="submit" value="刪除" class="input-button" onclick="doit('delete_user',${user.id})" />
<input type="button" id="password" name="button" value="修改密碼" class="input-button" />
</div>
</form>
</div>
</body>protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String action = request.getParameter("option");
System.out.println("这是后台的Java类"+action);
if("select_user".equals(action))
doSelect(request, response);
else if("add_user".equals(action)){
doAdd(request, response);
}else if("update_user".equals(action))
doUpdate(request, response);
else if("delete_user".equals(action))
doDelete(request, response);
else if("select_all".equals(action))
doSelects(request, response);
else if("modify_user".equals(action))
doModidy(request, response);
}
</html>
以下是
userServlet.java
片段
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String action = request.getParameter("option");
System.out.println("这是后台的Java类"+action);
if("select_user".equals(action))
doSelect(request, response);
else if("add_user".equals(action)){
doAdd(request, response);
}else if("update_user".equals(action))
doUpdate(request, response);
else if("delete_user".equals(action))
doDelete(request, response);
else if("select_all".equals(action))
doSelects(request, response);
else if("modify_user".equals(action))
doModidy(request, response);
}
private void doModidy(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id=request.getParameter("id");//Integer.valueOf(request.getParameter("id"));
System.out.println("这里是用户Modify页面！获得的user的ID是："+id);
HttpSession session = request.getSession();
session.setAttribute("modifyuser",userimpl.getUserbyId(Integer.valueOf(id)));
response.sendRedirect("userModify.jsp");//重定向
}
[解决办法]
<input type="button" id="return" name="button" value="返回" class="input-button" onclick="history.back();" />
<input type="button" id="modify" name="button" value="修改" class="input-button" onclick="return modifying(this);"/>
<input type="submit" id="del" name="submit" value="刪除" class="input-button" onclick="doit('delete_user',${user.id})" />
<input type="button" id="password" name="button" value="修改密碼" class="input-button" />
最重要的
这几个的js响应代码没有贴出
[解决办法]
<input type="text" name="id" id="textfield" class="text"/ value="${user.id}"> 这行代码是什么问题。。 / 位置放错。 首先看看JSP页面有没有错误！
[解决办法]
首先你能保证modifyuser有值么？
[解决办法]
什么错误啊~~
异常信息贴一下吧~~~
