关于struts2的一个简单AJax请求并返回Json数据-优快云博客

一、创建domain对象：

public class MyAjax {
	private String name;
	private int pwd;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getPwd() {
		return pwd;
	}

	public void setPwd(int pwd) {
		this.pwd = pwd;
	}

}

二、创建Action

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;

import com.google.gson.Gson;
import com.supinfo.core.web.struts2.BaseActionSupport;
import com.supinfo.jieneng.domains.MyAjax;



/**
 * 测试ajax
 * @author 
 *
 */
public class TestAjaxAction extends BaseActionSupport {
	public String  testAjax() throws IOException{
		MyAjax myAjax =new MyAjax();
		myAjax.setName("zhangsan");
		myAjax.setPwd(123445);
		Gson gson=new Gson();
		String js=gson.toJson(myAjax);
		HttpServletRequest request=ServletActionContext.getRequest() ;
		HttpServletResponse response=ServletActionContext.getResponse();
		System.out.println("进入");
		Object name=request.getParameter("name");
		System.out.println("name:"+name);
		System.out.println("json:"+js);
		response.getWriter().write(js);
		return SUCCESS;
	}	

}

三、修改 applicationContext-actions.xml 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
	<bean id="TestAjaxAction" class="com.supinfo.jieneng.manager.action.TestAjaxAction"/>
	
</beans>

四、修改 struts.xml 配置文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
	<package name="default" namespace="/" extends="struts-default">
		<result-types>
			<result-type name="gson" class="com.supinfo.core.web.struts2.gson.GsonResult" />	
		</result-types>
	
	</package>

        <package name="testAjax" namespace="/manager/testAjax" extends="manager">
	  <action name="testAjax" class="TestAjaxAction" method="testAjax">
	    <result name="success" type="gson">/TestAjax.jsp</result>
	  </action>
	</package>
	
</struts>

jsp内容:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@include file="common.jsp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>ajax</title>
<script type="text/javascript" src="<%=basePath %>/jsx/jquery.min.js"></script>
<script type="text/javascript">
   function testAjax(){
	   $.ajax({
		  type:"post",
		  url:"<%=basePath%>/manager/testAjax/testAjax",
		  dataType:"json",
		  data:{
			  "name":"username"
		  },
		  success:function(msg){
			  alert(msg.name);
			  alert(msg.pwd);
		  }
		   
	   });
   } 
</script>
</head>
<body>
    <a href="<%=basePath%>/manager/testAjax/testAjax?name=zj">ajax</a>
    <button  onclick="testAjax()">提交</button>
</body>
</html>