我正在使用ASIHttpRequest Library进行并行异步Web调用。下面是实际方法的代码片段。
- (void)dataForURI:(NSString *)dataURI andTag:(NSString*)tag
{
NSLog(@"%d",_queue.requestsCount);
if (!_queue) {
_queue = [ASINetworkQueue queue];
}
ASIHTTPRequest* request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:dataURI]];
[request setTimeOutSeconds:30];
[request setDownloadProgressDelegate:self];
[request setDelegate:self];
[request setDidFinishSelector:@selector(requestFinished:)];
[request setDidFailSelector:@selector(requestFailed:)];
[request setDidReceiveResponseHeadersSelector:@selector(requsestResponseHeaderReceived:)];
[request setShouldContinueWhenAppEntersBackground:YES];
[request setTag:[tag integerValue]];
[_queue addOperation:request];
[_queue go];
}
当我"NSLog"请求的request.responseString属性时,控制台中没有显示任何内容。我使用 Wireshark 来检查链接是否正在发送任何响应,并且似乎正在发送正确的响应。
当我"NSLog"响应标头时,它会显示正确的值。这是代码片段:
-(void)requestFinished:(ASIHTTPRequest *)request
{
NSLog(@"%@",request.responseString);
NSLog(@"%@",[[request responseHeaders] objectForKey:@"Content-Type"]);
[self imageHandlerDidDownloadData:request.responseData mimeType:[request.responseHeaders objectForKey:@"Content-Type"] forMediaID:[NSString stringWithFormat:@"%d", request.tag]];
}
我也在此方法中获取响应数据(但不是在请求完成:方法中):
-(void)request:(ASIHTTPRequest *)request didReceiveData:(NSData *)data
{
NSLog(@"%@",data);
NSLog(@"%@", [[request responseHeaders] objectForKey:@"Content-Type"]);
}
请帮助我得到正确的回应...!!
提前谢谢。
我想通了。我没有为 ASIHttpRequest 设置委托,而是需要为 _queue 设置委托。
用
[_queue setDelegate:self] worked out for me...