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：

所用到的jQuery文件，自行下载。

转载请注明出处。

posted @ 2016-11-18 15:41  西红柿鸡蛋面  阅读(1876)  评论(0)    收藏  举报