Ajax 進行Post傳值和Get傳值

08-03

來自：http://www.cnblogs.com/fuchifeng/archive/2008/11/25/1340913.html

以下AJAX post 傳值

<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Untitled Document</title></head><script language="javascript">function saveUserInfo(){//獲取接受返回信息層var msg = document.getElementById("msg");//獲取表單對象和用戶信息值var f = document.user_info;var userName = f.user_name.value;var userAge = f.user_age.value;var userSex = f.user_sex.value;//接收表單的URL地址var url = "/ajax_output.php";//需要POST的值，把每個變數都通過&來聯接var postStr = "user_name="+ userName +"&user_age="+ userAge +"&user_sex="+ userSex;//實例化Ajax//var ajax = InitAjax(); var ajax = false; //開始初始化XMLHttpRequest對象 if(window.XMLHttpRequest) { //Mozilla 瀏覽器 ajax = new XMLHttpRequest(); if (ajax.overrideMimeType) {//設置MiME類別 ajax.overrideMimeType("text/xml"); } } else if (window.ActiveXObject) { // IE瀏覽器 try { ajax = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { ajax = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } if (!ajax) { // 異常，創建對象實例失敗 window.alert("不能創建XMLHttpRequest對象實例."); return false; }//通過Post方式打開連接ajax.open("POST", url, true);//定義傳輸的文件HTTP頭信息ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");//發送POST數據ajax.send(postStr);//獲取執行狀態ajax.onreadystatechange = function() { //如果執行狀態成功，那麼就把返回信息寫到指定的層里 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 />年齡：<input type="text" name="user_age" /><br />性別：<input type="text" name="user_sex" /><br /><input type="button" value="提交表單" onClick="saveUserInfo()"></form></body>

以下是AJAX get傳值

<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Untitled Document</title></head><script language="javascript">function saveUserInfo(){//獲取接受返回信息層var msg = document.getElementById("msg");//獲取表單對象和用戶信息值var f = document.user_info;var userName = f.user_name.value;var userAge = f.user_age.value;var userSex = f.user_sex.value;//接收表單的URL地址var url = "/ajax_output.php? user_name="+ userName +"&user_age="+ userAge +"&user_sex="+ userSex";//實例化Ajax//var ajax = InitAjax(); var ajax = false; //開始初始化XMLHttpRequest對象 if(window.XMLHttpRequest) { //Mozilla 瀏覽器 ajax = new XMLHttpRequest(); if (ajax.overrideMimeType) {//設置MiME類別 ajax.overrideMimeType("text/xml"); } } else if (window.ActiveXObject) { // IE瀏覽器 try { ajax = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { ajax = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } if (!ajax) { // 異常，創建對象實例失敗 window.alert("不能創建XMLHttpRequest對象實例."); return false; }//通過Post方式打開連接ajax.open("GET", url, true);//發送GET數據,已經在URL中賦了值所以send那裡只要加個空參.ajax.send(null);//獲取執行狀態ajax.onreadystatechange = function() { //如果執行狀態成功，那麼就把返回信息寫到指定的層里 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 />年齡：<input type="text" name="user_age" /><br />性別：<input type="text" name="user_sex" /><br /><input type="button" value="提交表單" onClick="saveUserInfo()"></form></body>