关于ajax的调用如何接收返回字符串
<script language="javascript">
function makeRequest(url) {
var http_request = false;
var stringaa;
if (window.XMLHttpRequest) { // Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {
http_request.overrideMimeType('text/xml');
// See note below about this line
}
} else if (window.ActiveXObject) { // IE
try {
http_request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
http_request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
if (!http_request) {
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
http_request.onreadystatechange = function() {stringaa = alertContents
(http_request); };
http_request.open('GET', url, true);
http_request.send(null);
return stringaa;
}
function alertContents(http_request) {
if (http_request.readyState == 4) {
if (http_request.status == 200) {
alert(http_request.responseText);//如何返回这个值
}
else {
alert('There was a problem with the request.');
}
}
}
假如:
makeRequest(一个CGI_URL);
如何把服务器CGI,生成的文本作为一个字符串返回呢。
现在上面只能alert,不能return。
谢谢!