今天在网络上找了一下toolBar的换行方法,一试果然可以
*.jsp的代码如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<%@ include file="../common/common_header.jsp"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Extjs study</title>
<link rel="stylesheet" type="text/css" href="<%=contextPath%>/js/ext/resources/css/ext-all.css" /> 
<script type="text/javascript" src="<%=contextPath%>/js/ext/adapter/ext/ext-base.js" ></script>
<script type="text/javascript" src="<%=contextPath%>/js/ext/ext-all-debug.js" ></script>
<script type="text/javascript" src="<%=contextPath%>/js/ext/ext-lang-zh_CN.js" ></script>
<script type="text/javascript" src="<%=contextPath%>/js/study/extjstudy.js"></script>
</head>
<body>
<h1>ExtJS Study</h1>
<div id='demoGrid'></div>
</body>
</html>
*.js代码如下:
Ext.onReady(function () {   
    var oneTbar = new Ext.Toolbar({   
        items: [{   
            text: '复制'  
        },   
        {   
            text: '粘贴'  
        }]   
    });   
    var twoTbar = new Ext.Toolbar({   
        items: [   
        new Ext.Toolbar.TextItem('工具栏:') //显示文本      
        ]   
    });   
    var threeTbar = new Ext.Toolbar({   
        items: [{   
            xtype: "tbfill"  
        },   
        //后面的tools显示在右边       
        {   
            pressed: true,   
            text: '刷新'  
        }]   
    });
    var gridMain = new Ext.Panel({
    renderTo :"demoGrid",
          width: Ext.get('demoGrid').getWidth()*0.99,
    height : 395,
    enableHdMenu : false,
    enableColumnMove : false,
    viewConfig: {
           forceFit: true
       },
       items: [{
              tbar: [{   
                  text: '添加'  
              },   
              '-', {   
                  text: '删除'  
              },   
              '-', {   
                  text: '修改'  
              }],   
              listeners: {  
                  'render': function () {   
                      oneTbar.render(this.tbar); //add one tbar      
                      twoTbar.render(this.tbar); //add two tbar      
//                      threeTbar.render(this.tbar); //add three tbar      
                  }
              }   
          }]
   });
// gridMain.render();
});
跑出来的效果如下:

听说现在的Ext3.0的toolBar本身已经支持了这个功能,而且还听说是要收费,这就不爽了 
快快乐乐、认认真真生活才是真。