利用Ajax實(shí)現(xiàn)在腳本里傳值實(shí)例介紹

function ajaxSave(URLS) { 
//定義一個(gè)變量用于存放XMLHttpRequest對象 
var xmlhttp; 
//定義一個(gè)變量用于存放 從服務(wù)器返回的響應(yīng)結(jié)果 
var responseContext = ""; 
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari 
xmlhttp = new XMLHttpRequest(); 
} else {// code for IE6, IE5 
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
} 
xmlhttp.onreadystatechange = function() { 
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { 
responseContext = xmlhttp.responseText; 
alert(responseContext); 
} 
} 
xmlhttp.open("POST", URLS, true); 
xmlhttp.setRequestHeader("Content-Type", 
"application/x-www-form-urlencoded"); 
xmlhttp.send(); 
} 
 
后臺方法： 
 代碼如下:

Boolean boolean1; 
String reponseText = ""; 
if(boolean1){ 
reponseText="保存成功！"; 
} 
else{ 
reponseText="保存失敗！"; 
} 
HttpServletResponse response = ServletActionContext.getResponse(); 
response.setContentType("text/plain"); 
response.setCharacterEncoding("UTF-8"); 
PrintWriter out = response.getWriter(); 
out.println(reponseText); 
out.flush(); 
out.close(); 
return null; 

 
 




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