Struts2+jquery 以ajax方式 实现jsp跟后台交互

功能：利用struts2+ajax从后台获取数据,并且数据以json格式传递

必备组建:struts2,juqery,struts2 json 插件

步骤：

1.ation应该继承 ActionSupport

package com.thtf.lotterymanager.index.action;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.sf.json.JSONObject;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionSupport;
import com.thtf.common.BaseAction;

@Scope("prototype")
@Controller("indexAction")
public class IndexActjion extends ActionSupport {
    private static Logger logger = Logger.getLogger(IndexActjion.class);
   private String json;
    
    public String verifyAuthcode(){
        try {
            String rand = (String) BaseAction.getSession("rand");
            JSONObject jo = new JSONObject();
            if (rand != null && rand != "" && rand.equals(authcode)) {
                json = jo.element("result", "1").toString();
            } else {
                json = jo.element("result", "0").toString();
            }
            logger.info(json);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return SUCCESS;
    }

 

    public String getJson() {
        return json;
    }

    public void setJson(String json) {
        this.json = json;
    }
}

 

2.配置Struts.xml文件

    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

   
       
           
                json
           
       
   

注意：配置文件中标红的json必须跟必须跟你action中的字段名称保持一致，并且要在action中声明get，set方法

3.前台jsp页面使用jquery方式与后台交互

//登陆验证
        $(function(){
            $("#loginForm").submit(function(){
                var userName = $("#username").val();
                var pwd = $("#pwd").val();
                var authcode = $("#authcode").val();