Ext Login,服务端返回后出现页面脚本错误
先看下页面....
<%@ page contentType="text/html;charset=GBK" pageEncoding="GBK" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>extDemo</title>
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath() %>/js/ext-2.2/resources/css/ext-all.css" />
<script type="text/javascript" src="<%=request.getContextPath() %>/js/ext-2.2/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="<%=request.getContextPath() %>/js/ext-2.2/ext-all.js"></script>
</head>
<body>
<script type="text/javascript">
Ext.onReady(
function(){
//使用表单提示
Ext.QuickTips.init();
Ext.form.Field.prototype.msgTarget = 'side';
//定义表单
var simple = new Ext.FormPanel({
labelWidth: 75,
baseCls: 'x-plain',
defaults: {width: 150},
defaultType: 'textfield',//默认字段类型
//定义表单元素
items: [
{
fieldLabel: 'Username',
name: 'name',//元素名称
//anchor:'95%',//也可用此定义自适应宽度
allowBlank:false,//不允许为空
blankText:'Please input your name'//错误提示内容
},
{
inputType:'password',
fieldLabel: 'Password',
//anchor:'95%',
name: 'pws',
allowBlank:false,
blankText:'Password is empty'
}
],
buttons: [{
text: 'Login',
type: 'submit',
//定义表单提交事件
handler:function(){
if(simple.form.isValid()){//验证合法后使用加载进度条
Ext.MessageBox.show({
title: 'Please wait a moment.',
msg: 'Loading...',
progressText: '',
width:300,
progress:true,
closable:false,
animEl: 'loding'
});
//控制进度速度
var f = function(v){
return function(){
var i = v/11;
Ext.MessageBox.updateProgress(i, '');
};
};
for(var i = 1; i < 13; i++){
setTimeout(f(i), i*150);
}
//提交到服务器操作
simple.form.doAction('submit',{
url:'LoginServlet',//文件路径
method:'post',//提交方法post或get
params:'',
//提交成功的回调函数
success:function(form,action){
alert("in");
if (action.result.msg=='ok') {
document.location='success.jsp';
} else {
Ext.Msg.alert('Login error',action.result.msg);
}
},
//提交失败的回调函数
failure:function(){
Ext.Msg.alert('Error','Server is error！');
}
});
}
}
},
{
text: 'Cancel',
handler:function(){simple.form.reset();}//重置表单
}
]
});
//定义窗体
win = new Ext.Window({
id:'win',
title:'User Login',
layout:'fit', //之前提到的布局方式fit，自适应布局
width:300,
height:150,
plain:true,
bodyStyle:'padding:5px;',
maximizable:false,//禁止最大化
closeAction:'close',
closable:false,//禁止关闭
collapsible:true,//可折叠
plain: true,
buttonAlign:'center',
items:simple//将表单作为窗体元素嵌套布局
});
win.show();//显示窗体
});
</script>
</body>
</html>
再看下服务端...
package demo;
import java.io.IOException;
import java.sql.ResultSet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class LoginServlet extends HttpServlet
{
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
response.setContentType("text/html;charset=gb2312");
request.setCharacterEncoding("gb2312");
try
{
String user=request.getParameter("name");
String pasd=request.getParameter("pws");
String flag="";
System.out.println("---------------------user:"+user+"----pwd:"+pasd);
if(user!=null && !"".equals(user)){
if(pasd!=null && !"".equals(pasd)){
DBconnection conn = new DBconnection();
System.out.println("select * from user u where u.username="+user+" and u.password="+pasd);
ResultSet rs = conn.getResult("select * from user u where u.username='"+user+"' and u.password='"+pasd+"'");
if(rs.next()){
flag="0";
}
}
}
System.out.println("------------flag:"+flag);
if(flag!=null && !"".equals(flag)){
//json形式返回数据,如何返回???
String json = "(success:true,msg:\'ok\')";
response.getWriter().write(json);
response.getWriter().flush();
System.out.println(json);
response.sendRedirect("index.jsp");
}
else{
String json = "(success:true,msg:\'Login fail\')";
response.getWriter().write(json);
response.getWriter().flush();
System.out.println(json);
response.sendRedirect("index.jsp");
}
}
catch(Exception ex){
}
}
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
doGet(request,response);
}
}
问题出在从服务端返回客户端时...页面出现脚本错误...指向页面的第24行...少')'号....哪位朋友知道帮帮忙....先谢了..初学Ext,所用API为2.2版本.
另外还想问一下,从服务端回显json格式数据时,以什么方式?是用out,还是write还是其它什么? :)