Ios 无法接收GET请求的上次重定向的URL
我想做什么： 当我向URL发出Ios 无法接收GET请求的上次重定向的URL,ios,objective-c,web-services,redirect,Ios,Objective C,Web Services,Redirect,我想做什么： 当我向URL发出GET请求时，响应是302 HTTP响应，这意味着它是一个重定向。我知道在我最初的GET请求之后有多个重定向（3到4）。我想得到多个重定向发生后的最后一个URL。我只能收到第一个重定向URL 我尝试的是以下方面的答案： 我的代码剪取自以下答案： AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSString *URLString = @"
GET302 HTTP响应GETAFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSString *URLString = @"URL";
NSDictionary *parameters = @{@"k1": @"v1", @"k2": @"v2"};
NSMutableURLRequest *request_orig = [manager.requestSerializer requestWithMethod:@"GET" URLString:[[NSURL URLWithString:URLString relativeToURL:manager.baseURL] absoluteString] parameters:parameters error:nil];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request_orig];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
{
//This is the first Redirect URL that I receive
NSLog(@"New redirect URL: %@",[[[operation response] URL] absoluteString]);
} failure:^(AFHTTPRequestOperation *operation, NSError *error)
{
NSLog(@"Failure: err: %@", error);
}];
[operation setRedirectResponseBlock:^NSURLRequest *(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse) {
if (redirectResponse) {
NSMutableURLRequest *r = [request_orig mutableCopy]; // original request
[r setURL: [request URL]];
return r;
} else {
NSLog(@"redirecting to : %@", [request URL]);
return request;
}
}];
[manager.operationQueue addOperation:operation];
我能够收到第一个重定向的URL，但之后没有第二个或第三个重定向。我应该怎么做才能让重定向继续并只接收最后一次重定向的URL。我是iOS开发的新手。我将感谢您的帮助。谢谢 如果您只想执行所有重定向，则在数据开始通过连接时，继续返回提供的请求并中止就足够了 我不久前为OSX写过这篇文章，但它应该可以在iOS（w/ARC）上运行，而不需要修改：
- (NSURL *)resolvedURLRedirectionsForURL:(NSURL *)aURL {
NSLog(@"Started w/ initial URL: '%@'", aURL);
NSURL *originalURL = aURL;
NSURL __block *resolvedURL = nil;
if (aURL) {
dispatch_semaphore_t __communicationLock = dispatch_semaphore_create(0);
NSURLRequest *resolveRequest = [NSURLRequest requestWithURL:originalURL
cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData
timeoutInterval:5. ];
AFHTTPRequestOperation *request = [[AFHTTPRequestOperation alloc] initWithRequest:resolveRequest];
[request setRedirectResponseBlock:^NSURLRequest *(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse) {
NSLog(@"..request encountered redirection to: '%@'",request.URL);
if (redirectResponse)
resolvedURL = [request.URL copy];
return request;
}];
AFHTTPRequestOperation __weak *weakRequest = request;
[request setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
[weakRequest cancel];
}];
[request setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"..request successful! (result: %@)",responseObject);
dispatch_semaphore_signal(__communicationLock);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (operation.response.statusCode == 200)
NSLog(@"..request successful! (aborted)");
else
NSLog(@"..request failed! (error: %@)",error);
dispatch_semaphore_signal(__communicationLock);
}];
[request start];
dispatch_semaphore_wait(__communicationLock, DISPATCH_TIME_FOREVER);
}
NSLog(@"Resolved URL '%@' to '%@'",originalURL,resolvedURL);
return resolvedURL;
}