Ext如何做登陆页面
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[code="js"]
Ext.onReady(function(){
Ext.QuickTips.init();//开启表单提示
Ext.form.Field.prototype.msgTarget = 'side';//设置提示信息位置为边上
var simple = new Ext.FormPanel({//初始化表单面板
labelWidth: 75, // 默认标签宽度
frame:true,//设置表单面板，false为无面板
title: '我的表单',
bodyStyle:'padding:5px 5px 0',
width: 350,
defaults: {width: 230},
defaultType: 'textfield',//默认字段类型
items: [{
fieldLabel: '帐户',
name: 'name',
allowBlank:false,
blankText: '帐户不能为空'
},{
fieldLabel: '密码',
name: 'pws',
allowBlank:false,//禁止为空
blankText: '密码不能为空'//可限制多种类型，具体参照api文档
}
],
buttons: [{
text: '登录',
handler:function(){alert("你提交了表单！");}//提交表单与服务器交互的实例请参照实例分析部分《一个完整的登录实例》
},{
text: '取消',
handler:function(){simple.form.reset();}//重置表单
}]
});
simple.render('show');//填充到指定区域
});
[/code]
这是login.js
var txtUserName = new Ext.form.TextField({
name: 'txtName',
width: 250,
fieldLabel: '用户名',
maxLength: 50,
allowBlank: false,
blankText: '帐户不能为空'
});
var txtPassword = new Ext.form.TextField({
name: 'txtPassword',
width: 250,
fieldLabel: '密码',
maxLength: 50,
allowBlank: false,
blankText: '密码不能为空'
});
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: [txtUserName, txtPassword
/*
{
fieldLabel: '用户名',
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:'帐户不能为空'//错误提示内容
},{
inputType:'password',
fieldLabel: '密码',
//anchor:'95%',
name: 'pws',
allowBlank:false,
blankText:'密码不能为空'
}*/
],
buttons: [{
text: '登陆',
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: '请稍等',
msg: '正在加载...',
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);
}*/
//提交请求
var requester = new Ext.data.Connection({
method: 'post',
url: './user/login.form?view=login',
waitTitle: 'xxxxx',
waitMsg: 'yyyyyyyyyyyyyyyy'
});
requester.request({
params: {name: txtUserName.getValue(), pws: txtPassword.getValue()},
scope: this,
success: function(response, action) {
var users = Ext.util.JSON.decode(response.responseText);
if(!users.success){
Ext.Msg.alert('登录错误', users.errors);
}else{
document.location='index.html';
}
},
failure: function(response, action) {
console.info('Error');
}
});
}
}
},{
text: '取消',
handler:function(){simple.form.reset();}//重置表单
}]
});
//定义窗体
win = new Ext.Window({
id:'win',
title:'用户登陆',
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
simple.render("show");
});
这是html页面
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link href="./resources/styles/ext-all.css" rel="stylesheet" type="text/css"/>
<link href="./resources/styles/screen.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="./resources/scripts/ext-base.js"></script>
<script type="text/javascript" src="./resources/scripts/ext-all.js"></script>
<script type="text/javascript" src="./resources/scripts/ext-lang-zh_CN.js"></script>
<script type="text/javascript" src="./resources/scripts/login.js"></script>
/**
* 登录请求
*/
public ModelAndView login(HttpServletRequest request,
HttpServletResponse response) throws Exception{
response.setContentType("application/json;charset=UTF-8");
String name = request.getParameter("name");
String pwd = request.getParameter("pws");
Map model = new HashMap();
if("admin".equals(name)){
model.put("success", Boolean.TRUE);
model.put("errors", "登陆成功!");
}
else{
model.put("success", Boolean.FALSE);
model.put("errors", "用户名或密码错误!");
}
return new ModelAndView("jsonView", model);
}
把以上代码copy回去就可以了；这是自己写的，希望对你有用
http://download.csdn.net/source/254802
http://download.csdn.net/source/603127
http://download.csdn.net/source/726620