尝试为使用 IE 7 的用户找到解决方法。基本上,在我的客户端 javascript 应用程序中,下面的代码向运行 node.js 的服务器发出 httprequest,如果客户端使用 IE8,我会获得成功的连接,但在 IE7 中则不成功。想法?
var myxmlhttp;
doRequest();
function doRequest() {
var url = "http://someserver:8000/" + username;
myxmlhttp = CreateXmlHttpReq(resultHandler);
if (myxmlhttp) {
XmlHttpGET(myxmlhttp, url);
} else {
alert("An error occured while attempting to process your request.");
// provide an alternative here that does not use XMLHttpRequest
}
}
function resultHandler() {
// request is 'ready'
if (myxmlhttp.readyState == 4) {
// success
if (myxmlhttp.status == 200) {
alert("Success!");
// myxmlhttp.responseText is the content that was received
} else {
alert("There was a problem retrieving the data:\n" + req.status.text);
}
}
}
function CreateXmlHttpReq(handler) {
var xmlhttp = null;
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
} else if (window.ActiveXObject) {
// users with activeX off
try {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
if (xmlhttp) xmlhttp.onreadystatechange = handler;
return xmlhttp;
}
// XMLHttp send GEt request
function XmlHttpGET(xmlhttp, url) {
try {
xmlhttp.open("GET", url, true);
xmlhttp.send(null);
} catch (e) {}
}
最佳答案
不确定,但您需要调整 CreateXmlHttpReq
函数来处理不同类型的 Microsoft ActiveXObjects
function CreateXmlHttpReq(handler) {
var xmlhttp = null;
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
} else if (window.ActiveXObject) {
var types = ["Msxml2.XMLHTTP.6.0", "Msxml2.XMLHTTP.3.0", "Microsoft.XMLHTTP"];
for (var i = 0; i < types.length; i++) {
try {
xmlhttp = new ActiveXObject(types[i]);
break;
} catch(e) {}
}
}
if (xmlhttp) {
xmlhttp.onreadystatechange = handler;
}
return xmlhttp;
}
关于javascript - Node 服务器的 HTTPRequest 在 IE 8 中工作,但在 IE 7 中不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10389136/