AFNetWorking 队列请求
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AFNetWorking 队列请求
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我们在开发过程中,经常会遇到有些页面不止一个网络请求,有时候需要两个三个甚至更多,这个时候我们就需要队列请求,下边是GET请求的多个请求放在队列里边:
[objc] view plaincopyprint?
- NSURL *url = [NSURL URLWithString:@"http://www.baidu.com"];
- NSURLRequest *request = [NSURLRequest requestWithURL:url];
- AFHTTPRequestOperation *operation1 = [[AFHTTPRequestOperation alloc] initWithRequest:request];
- [operation1 setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
- NSLog(@"Response: %@", [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding]);
- } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
- NSLog(@"Error: %@", error);
- }];
- NSURL *url2 = [NSURL URLWithString:@"http://www.sohu.com"];
- NSURLRequest *request2 = [NSURLRequest requestWithURL:url2];
- AFHTTPRequestOperation *operation2 = [[AFHTTPRequestOperation alloc] initWithRequest:request2];
- [operation2 setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
- NSLog(@"Response2: %@", [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding]);
- } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
- NSLog(@"Error: %@", error);
- }];
- NSURL *url3 = [NSURL URLWithString:@"http://www.sina.com"];
- NSURLRequest *request3 = [NSURLRequest requestWithURL:url3];
- AFHTTPRequestOperation *operation3 = [[AFHTTPRequestOperation alloc] initWithRequest:request3];
- [operation3 setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
- NSLog(@"Response3: %@", [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding]);
- } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
- NSLog(@"Error: %@", error);
- }];
- //同时请求
- NSOperationQueue *operationQueue = [[NSOperationQueue alloc] init];
- [operationQueue setMaxConcurrentOperationCount:3];
- [operationQueue addOperations:@[operation1, operation2, operation3] waitUntilFinished:NO];
- //operation2 在 operation1 请求完成后执行
- NSOperationQueue *operationQueue = [[NSOperationQueue alloc] init];
- [operation2 addDependency:operation1];
- [operationQueue addOperations:@[operation1, operation2, operation3] waitUntilFinished:NO];
下边是POST请求:
[objc] view plaincopyprint?
- NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://gowalla.com/friendships/request?user_id=1699"]];
- [request setHTTPMethod:@"POST"];
- NSDictionary *headers = [NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"Token token=\"%@\"", kOAuthToken] forKey:@"Authorization"];
- [request setAllHTTPHeaderFields:headers];
- AFHTTPRequestOperation *operation = [AFHTTPRequestOperation operationWithRequest:request completion:^(NSURLRequest *request, NSHTTPURLResponse *response, NSData *data, NSError *error) {
- BOOL HTTPStatusCodeIsAcceptable = [[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(200, 100)] containsIndex:[response statusCode]];
- if (HTTPStatusCodeIsAcceptable) {
- NSLog(@"Friend Request Sent");
- } else {
- NSLog(@"[Error]: (%@ %@) %@", [request HTTPMethod], [[request URL] relativePath], error);
- }
- }];
- NSOperationQueue *queue = [[[NSOperationQueue alloc] init] autorelease];
- [queue addOperation:operation];
转载于:https://www.cnblogs.com/weiboyuan/p/5053246.html
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