Question

I am using Soap Web services and get response in XML and that Response i am store in NSMutableData and than i perform XML parsing i am using NSXMLParser. my problem is that some times it is works and some times not i can’t determine what is the problem so anybody can help me to out of this problem.
I am using this code-

    NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]];
    [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    [theRequest addValue: @"http://MYLINK......." forHTTPHeaderField:@"MY_action"];
    [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
    [theRequest setHTTPMethod:@"POST"];
    [theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
    NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
    if(theConnection)
    {
        webData_msg = [[NSMutableData data] retain];
    }

and getting also response in-

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [webData_msg appendData:data];  
}

but after getting response parse the xml here-

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    if( xmlParser_msg)
    {
        [xmlParser_msg release];
        xmlParser_msg=nil;
    }
    xmlParser_msg = [[NSXMLParser alloc] initWithData: webData_msg];
    [xmlParser_msg setDelegate: self];
    [xmlParser_msg setShouldResolveExternalEntities: YES];
    [xmlParser_msg parse];

    [connection release];
    [webData_msg release];
}

than problem arise here, some times NSXMLParserDelegate methods call some times not call.
What is going wrong here? please help and sorry for any mistake in English.

Answer 1

The problem was I was getting HTML response through web service so xml purser hangs on that.
It was sometimes errors coming from web service side with HTML content.