以下是Ajax简单案例，实现点击aaa.jsp中按钮，通过Ajax提交到服务器的 bbb.jsp页面。
aaa.jsp
<%@ page language="java" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <SCRIPT LANGUAGE = "JavaScript" > var tmp = "testing";
function test(){ var xmlHttp; // 处理Ajax浏览器兼容 if (window.ActiveXObject) { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); } else if (window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } var url = "bbb.jsp?test=" + tmp; // 使用JS中变量tmp xmlHttp.open("post",url,true); //配置XMLHttpRequest对象 //设置回调函数 xmlHttp.onreadystatechange = function (){ if (xmlHttp.readyState == 4 && xmlHttp.status == 200) { // var respText = xmlHttp.responseText; alert("调用成功!");
} } xmlHttp.send(null); // 发送请求 } </script> <meta http-equiv=Content-Type content="text/html;charset=GB2312"> <title>Ajax简单案例</title> </head> <body > <input type="button" name="btTest1" value="测试" onclick="test()"/> </body> </html>
bbb.jsp对aaa.jsp中通过ajax传递的值进行接收
<%@ page language="java" pageEncoding="utf-8"%>
<%
String test = request.getParameter("test"); // 接收aaa.jsp界面传来的test参数
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<input type="text" name="test" value="<%=test%>"> <!-- 引用jsp中变量 -->
</body>