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Hi, I’m having trouble with a HttpRequest. I used the code below for the request and I ran them off a webserver but I got the catch(errv) error as an undefined error in Firefox, and got a blank page in IE. The firefox error console doesn’t show any errors. I am positive the URL I used was correct because it works when I type it into my browser.
Any help is really appreciated. I am new at this and have a lot to learn. Thanks!
[CODE]var request = null;
/* Initialize a Request object that is already constructed */
function initReq(reqType,url,bool,respHandle){
try{
/* Specify the function that will handle the HTTP response */
request.onreadystatechange=respHandle;
request.open(reqType,url,bool);
//if the reqType parameter is POST, then the
//5th argument to the function is the POSTed data
if(reqType.toLowerCase() == “post”) {
request.setRequestHeader(“Content-Type”,
“application/x-www-form-urlencoded; charset=UTF-8”);
request.send(arguments[4]);
} else {
request.send(null);
}
} catch (errv) {
alert(
“The application cannot contact “+
“the server at the moment. “+
“Please try again in a few seconds.n”+
“Error detail: “+errv.message);
}
}
/* Wrapper function for constructing a Request object.
Parameters:
reqType: The HTTP request type such as GET or POST.
url: The URL of the server program.
asynch: Whether to send the request asynchronously or not.
respHandle: The name of the function that will handle the response.
Any fifth parameters represented as arguments[4] are the data a
POST request is designed to send. */
function httpRequest(reqType,url,asynch,respHandle){
//Mozilla-based browsers
if(window.XMLHttpRequest){
request = new XMLHttpRequest();
} else if (window.ActiveXObject){
request=new ActiveXObject(“Msxml2.XMLHTTP”);
if (! request){
request=new ActiveXObject(“Microsoft.XMLHTTP”);
}
}
//Very unlikely, but we test for a null request
//if neither ActiveXObject was initialized
if(request) {
//if the reqType parameter is POST, then the
//5th argument to the function is the POSTed data
if(reqType.toLowerCase() != “post”) {
initReq(reqType,url,asynch,respHandle);
} else {
//the POSTed data
var args = arguments[4];
if(args != null && args.length > 0){
initReq(reqType,url,asynch,respHandle,args);
}
}
} else {
alert(“Your browser does not permit the use of all “+
“of this application’s features!”);}
}
[CODE]var url = “http://xoap.weather.com/weather/local/”+
locationId+”?cc=*&dayf=2&prod=xoap&par=”+
partId+”&key=”+licId;
httpRequest(“GET”,url,true,handleResponse);