基于Struts的Ext增删改查应用范例...

来源：互联网发布：java就业培训学费编辑：程序博客网时间：2024/06/06 15:35

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <title>this is my first Extjs Demo...</title> <link rel="stylesheet" type="text/css" href="./extjs-3.0/resources/css/ext-all.css" mce_href="extjs-3.0/resources/css/ext-all.css" /><mce:script type="text/javascript" src="./extjs-3.0/adapter/ext/ext-base.js" mce_src="extjs-3.0/adapter/ext/ext-base.js" charset="utf-8"></mce:script><mce:script type="text/javascript" src="./extjs-3.0/ext-all.js" mce_src="extjs-3.0/ext-all.js" charset="utf-8"></mce:script><mce:script type="text/javascript" src="./extjs-3.0/source/locale/ext-lang-zh_CN.js" mce_src="extjs-3.0/source/locale/ext-lang-zh_CN.js" charset="utf-8"></mce:script><mce:script type="text/javascript" src="./extjs-3.0/ext-all-debug.js" mce_src="extjs-3.0/ext-all-debug.js" charset="utf-8"></mce:script><mce:script type="text/javascript"></mce:script> </head> <div id="grid" ></div></html>

UserAction.java

package com.extjs.web;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import org.apache.struts.actions.DispatchAction;public class UserAction extends DispatchAction {//查询所有信息public ActionForward getList(ActionMapping mapping , ActionForm form ,HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {int start = 0;int limit = 10;StringBuffer json = new StringBuffer();try {if(request.getParameter("start") != null){start = Integer.parseInt(request.getParameter("start").toString());limit = Integer.parseInt(request.getParameter("limit").toString());}} catch (NumberFormatException e) {}finally{ json.append("{totalProperty:100,root:[");for(int i = start;i<limit+start;i++){if(i < limit+start-1){json.append("{'id':'"+i+"','name':'name"+i +"','pass':'pass"+i+"','descn':'descn"+i+ "'},");}else{json.append("{'id':'"+i+"','name':'name"+i +"','pass':'"+i+"','descn':'descn"+i+ "'} ]}");}} response.setContentType("text/json;charset=UTF-8"); response.getWriter().write(json.toString());response.getWriter().close();}System.out.println("getListstart:"+start+" json:"+json.toString());return null;}//添加信息public ActionForward addObject(ActionMapping mapping , ActionForm form ,HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String msg = ""; try {if(request.getParameter("name") != null){String name = request.getParameter("name").toString();String pass = request.getParameter("pass").toString();String descn = request.getParameter("descn").toString();if(true){ msg="{success:true,data:{name:'"+name+"',pass:'"+pass+"',descn:'"+descn+"'}}"; //成功时候的返回信息 }else{ msg="{success:false,errors:{rs:'name和descn不匹配,请重新输入'}}"; //失败时候的返回信息 } response.setContentType("text/json;charset=UTF-8"); response.getWriter().write(msg);}} catch (NumberFormatException e) {}finally{response.getWriter().close(); }System.out.println("addObject msg:"+msg);return null; }//获得修改信息public ActionForward getModifyObject(ActionMapping mapping , ActionForm form ,HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String msg = ""; try {if(request.getParameter("id") != null){int id = Integer.parseInt(request.getParameter("id").toString());if(true){ msg="{success:true,data:{id:'"+id+"',name:'name"+id+"',pass:'pass"+id+"',descn:'descn"+id+"'}}"; //成功时候的返回信息 }else{ msg="{success:false,errors:{rs:'name和descn不匹配,请重新输入'}}"; //失败时候的返回信息 } response.setContentType("text/json;charset=UTF-8"); response.getWriter().write(msg);}} catch (NumberFormatException e) {}finally{response.getWriter().close(); }System.out.println("getModifyObjectmsg: "+msg);return null; }//修改信息public ActionForward modifyObject(ActionMapping mapping , ActionForm form ,HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String msg = ""; try {if(request.getParameter("id") != null){int id = Integer.parseInt(request.getParameter("id").toString());String name = request.getParameter("name").toString();String pass = request.getParameter("pass").toString();String descn = request.getParameter("descn").toString();if(true){ msg="{success:true,data:{id:'"+id+"',name:'"+name+"',pass:'"+pass+"',descn:'"+descn+"'}}"; //成功时候的返回信息 }else{ msg="{success:false,errors:{rs:'name和descn不匹配,请重新输入'}}"; //失败时候的返回信息 } response.setContentType("text/json;charset=UTF-8"); response.getWriter().write(msg);}} catch (NumberFormatException e) {}finally{response.getWriter().close(); }System.out.println("modifyObjectmsg: "+msg);return null; }//删除信息public ActionForward deleteObject(ActionMapping mapping , ActionForm form ,HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String msg = ""; try {if(request.getParameter("id") != null){int id = Integer.parseInt(request.getParameter("id").toString());if(id != 0){ msg="{success:true,data:{id:'"+id+"'}}"; //成功时候的返回信息 }else{ msg="{success:false,errors:{rs:'id不匹配,请重新输入'}}"; //失败时候的返回信息 } response.setContentType("text/json;charset=UTF-8"); response.getWriter().write(msg);}} catch (NumberFormatException e) {}finally{response.getWriter().close(); }System.out.println("deleteObjectmsg:"+msg);return null; }}