php Ajax Post GET传值

用Ajax 进行Post传值
以下程序已调试通过:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<script language="javascript">
function saveUserInfo()
{
//获取接受返回信息层
var msg = document.getElementByIdx_x("msg");
//获取表单对象和用户信息值
var f = document.user_info;
var userName = f.user_name.value;
var userAge   = f.user_age.value;
var userSex   = f.user_sex.value;
//接收表单的URL地址
var url = "/ajax_output.php";
//需要POST的值,把每个变量都通过&来联接
var postStr   = "user_name="+ userName +"&user_age="+ userAge +"&user_sex="+ userSex;
//实例化Ajax
//var ajax = InitAjax();
          var ajax = false;
         //开始初始化XMLHttpRequest对象
         if(window.XMLHttpRequest) { //Mozilla 浏览器
                 ajax = new XMLHttpRequest();
                 if (ajax.overrideMimeType) {//设置MiME类别
                         ajax.overrideMimeType("text/xml");
                 }
         }
         else if (window.ActiveXObject) { // IE浏览器
                 try {
                         ajax = new ActiveXObject("Msxml2.XMLHTTP");
                 } catch (e) {
                         try {
                                 ajax = new ActiveXObject("Microsoft.XMLHTTP");
                         } catch (e) {}
                 }
         }
         if (!ajax) { // 异常,创建对象实例失败
                 window.alert("不能创建XMLHttpRequest对象实例.");
                 return false;
         }
                
                
                
//通过Post方式打开连接
ajax.open("POST", url, true);
//定义传输的文件HTTP头信息
ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
//发送POST数据
ajax.send(postStr);
//获取执行状态
ajax.onreadystatechange = function() { 
   //如果执行状态成功,那么就把返回信息写到指定的层里
   if (ajax.readyState == 4 && ajax.status == 200) { 
    msg.innerHTML = ajax.responseText; 
   } 
}
</script>
<body >
<div id="msg"></div>
<form name="user_info" method="post" action="">
姓名:<input type="text" name="user_name" /><br />
年龄:<input type="text" name="user_age" /><br />
性别:<input type="text" name="user_sex" /><br />
<input type="button" value="提交表单" onClick="saveUserInfo()">
</form>
</body>
以上页面存为ajax.php
然后再建 一个PHP文件,ajax_output.php
<?
     echo $_POST['user_name'];
     echo $_POST['user_age'];
     echo $_POST['user_sex'];
?>
posted @ 2012-07-20 13:32  PointNet  阅读(6098)  评论(0编辑  收藏  举报