环境：eclipse+struts
要实现的效果：点击按钮提交数据到后台之后回到前台显示出来数据
index.jsp
<%@ page language="java" contenttype="text/html; charset=utf-8" pageencoding="utf-8"%> <!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>insert title here</title> </head> <body> <input type="text" id="userinput"> <input type="button" id="submit"> <p id="msg"></p> </body> <script type="text/javascript" src="jquery-2.1.0.js"></script> <script type="text/javascript"> window.onload = function() { document.getelementbyid(submit).onclick = test; } function test(){ var userinput = document.getelementbyid(userinput); $.post(http://localhost:8080/testspring/testaction,{username:userinput.value}, function(data, textstatus){ document.getelementbyid(msg).innerhtml = data; }); } </script> </html>
struts.xml
<action name="testaction" class="com.action.test"> <result>index.jsp</result> </action>
test.java
package com.action; import java.io.printwriter; import java.util.map; import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import org.apache.struts2.servletactioncontext; import com.opensymphony.xwork2.actioncontext; import com.opensymphony.xwork2.actionsupport; public class test extends actionsupport { @override public string execute() throws exception { // todo auto-generated method stub httpservletrequest request = org.apache.struts2.servletactioncontext.getrequest(); httpservletresponse response = servletactioncontext.getresponse(); request.setcharacterencoding(utf-8); response.setcharacterencoding(utf-8); printwriter out = response.getwriter(); out.write(request.getparameter(username)); out.flush(); out.close(); return success; } }
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以上就是ajax提交到java后怎么处理数据的详细内容。