struts2框架下的一个简单的ajax例子

举个例子 jsp页面：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>My JSP 'ajax.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">

    <meta http-equiv="cache-control" content="no-cache">

    <meta http-equiv="expires" content="0">

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="This is my page">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

    <script type="text/javascript" src="<%=basePath%>res/jquery-1.4.4.min.js"></script>

    <script type="text/javascript">

         $(document).ready(function(){

             $("#button").bind("click",function(){

                 $.ajax({

                     type:"post",

                     url:"<%=basePath%>ajax.action",

                     data:"array="+$("#text").val(),

                     datatype:"json",

                     success:function(msg){

                         alert(msg);

                     },

                     error:function()

                     {

                         alert("失败");

                     }

                 });

             })

         });

    </script>

  </head>

  <body>

        <input id = "text" type = "text" >

        <input id = "button" type = "button" value ="提交">

  </body>

</html>

后台：

package test;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.Action;

public class ajax {

	private String str;

	public String ajax()

	{

		HttpServletRequest request = ServletActionContext.getRequest();

		str = "action处理请求后返回给ajax参数："+request.getParameter("array");

		System.out.println(request.getParameter("array"));

		return Action.SUCCESS;

	}

	public String getStr() {

		return str;

	}

	public void setStr(String str) {

		this.str = str;

	}

}

　　Struts2 配置文件：

<?xml version="1.0" encoding="GBK"?>

<!DOCTYPE struts PUBLIC

	"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"

	"http://struts.apache.org/dtds/struts-2.1.7.dtd">

<struts>

	<constant name="struts.i18n.encoding" value="UTF-8"/>

	<package name="example"  extends="json-default">

		<action name = "ajax" class = "test.ajax" method = "ajax">

			<result type = "json">

				<param name = "root">str</param>

			</result>

		</action>

		<action name="*">

			<result>/WEB-INF/content/{1}.jsp</result>

		</action>

	</package>

</struts>

　　所用到的jar包：

struts2框架下的一个简单的ajax例子-LMLPHP

所用到的jQuery文件，自行下载。

转载请注明出处。