ExtJs中form表单提交的三种方式

第一种：

   function login(){ 
     formServer.form.submit();//提交  
   }
  function reset(){
           formServer.form.reset();//取消
         }  

var formServer=new Ext.FormPanel({
   frame:true,
   width:300,
   monitorValid:true,//绑定验证
   layout:"form",
   labelWidth:70,
   title:"添加个人信息",
   labelAlign:"left",
   renderTo:"formServer",
   submit: function(){
    this.getEl().dom.action = 'human.do?method=saveHuman',
    this.getEl().dom.method='POST',
    this.getEl().dom.submit();
   },
   items:[
    {
    xtype:"textfield",
    fieldLabel:"用户名",
       //id:"UserName",
       allowBlank:false,
       blankText:"不能为空，请正确填写",
       name:"UserName",
       anchor:"90%"
       },
    {
     xtype:"textfield",
     fieldLabel:"昵称",
     //id:"SmallName",
     name:"SmallName",
     anchor:"90%"
     },
     {
     xtype:"datefield",
     fieldLabel:"注册日期",
     //id:"RegDate",
     name:"RegDate",
     anchor:"90%"
     }],
    buttons:[
      {
       text:"确定",
       handler:login,
       formBind:true
      },
         {
         text:"取消",
         handler:reset
         }]  
     });

第二种：

   function login()
   { 
                  this.disabled = true;  // 登录时将登录按钮设为disabled，防止重复提交 
                  formServer.form.doAction('submit', {  //第一个参数可以为submit和load 
                      url : 'human.do?method=saveHuman', 
                      method : 'post',   
                      params : '', // 如果有表单以外的其它参数，可以加在这里。我这里暂时为空，也可以将下面这句省略
                      // 第一个参数是传入该表单，第二个是Ext.form.Action对象用来取得服务器端传过来的json数据 
                      success : function(form, action) { 
                             Ext.Msg.alert('操作','操作成功！'); 
                             this.disabled = false;
                         }, 
                      failure : function(form, action) { 
                             Ext.Msg.alert('警告', '用户名或密码错误！'); 
                              // 登录失败，将提交按钮重新设为可操作 
                              this.disabled = false; 
                          } 
                      }); 
                  this.disabled = false; 
          }

第三种：

           Ext.Ajax.request({                                  
                        url: 'login.do',  //请求地址
                       //提交参数组 
                        params: { 
                           LoginName:Ext.get('LoginName').dom.value, 
                           LoginPassword:Ext.get('LoginPassword').dom.value 
                       }, 
                        //成功时回调 
                       success: function(response, options) { 
                         //获取响应的json字符串 
                         var responseArray = Ext.util.JSON.decode(response.responseText);                                               
                              if(responseArray.success==true){ 
                                  Ext.Msg.alert('恭喜','您已成功登录！');     
                              } 
                              else{ 
                                 Ext.Msg.alert('失败','登录失败，请重新登录');     
                              } 
                      } 
             });