Ext.onReady(function() {store3 = new Ext.data.JsonStore({autoDestroy: true,totalProperty : 'totle',url: 'service.do',storeId: 'myStore',root: 'data',fields : [ 'id', "name", "pw" ]});var pagingToolbar = new Ext.PagingToolbar({emptyMsg : "没有数据",displayInfo : true,displayMsg : "显示从{0}条数据到{1}条数据，共{2}条数据",store : store3,pageSize : 50});var grade = new Ext.grid.GridPanel({title : "数据列表",store : store3,height : 300,bbar : pagingToolbar,columns : [ {header : "id",dataIndex : "id",width : 300}, {header : "name",dataIndex : "name",width : 300}, {header : "pw",dataIndex : "pw"} ],region : 'center'});var panel = new Ext.Viewport({layout : 'border',items : [ grade ]});});action********************
protected void service(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {List list = new ArrayList();for (int i = 0; i < 50; i++) {Person p = new Person();p.setId("id" + i);p.setName("name" + i);p.setPw("pw" + i);list.add(p);}StringBuffer info = new StringBuffer();info.append("{totle:2000,data:");info.append(JSONArray.fromObject(list));info.append("}");System.out.println(info.toString());System.out.println("*****doPos");request.setAttribute("info", info.toString());request.getRequestDispatcher("/info.jsp").forward(request, response);}info.jsp************注意：jsp除了 @page 不能有其他的文字
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"pageEncoding="ISO-8859-1"%>${info}web.xml***************
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"id="WebApp_ID" version="2.5"><servlet><servlet-name>test</servlet-name><servlet-class>com.aa.TestAction</servlet-class></servlet><servlet-mapping><servlet-name>test</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app>