转载

AFNetworking

iOS网络编程之AFNetworking使用

现在大家都喜欢用AFNetworking，因为有人维护。看来一下官方文档，把使用的代码简单罗列一下：

首先通过CocoaPods(没用过的看这篇文章)把AFNetworking拉下来

Podfile

platform :ios, '7.0' pod "AFNetworking", "~> 2.0"

方法一：GET 请求

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; [manager GET:@"http://example.com/resources.json" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {     NSLog(@"JSON: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) {     NSLog(@"Error: %@", error); }];

方法二：POST 请求

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSDictionary *parameters = @{@"foo": @"bar"}; [manager POST:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {     NSLog(@"JSON: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) {     NSLog(@"Error: %@", error); }];

方法三：POST Multi-Part Request

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSDictionary *parameters = @{@"foo": @"bar"}; NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"]; [manager POST:@"http://example.com/resources.json" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {     [formData appendPartWithFileURL:filePath name:@"image" error:nil]; } success:^(AFHTTPRequestOperation *operation, id responseObject) {     NSLog(@"Success: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) {     NSLog(@"Error: %@", error); }];

方法四：创建一个下载文件任务

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; NSURL *URL = [NSURL URLWithString:@"http://example.com/download.zip"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL]; NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {  NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];  return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]]; } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {  NSLog(@"File downloaded to: %@", filePath); }]; [downloadTask resume];

方法五：创建一个上传文件任务

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL]; NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"]; NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:filePath progress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {  if (error) {   NSLog(@"Error: %@", error);  } else {   NSLog(@"Success: %@ %@", response, responseObject);  } }]; [uploadTask resume];

方法六：创建一个上传文件任务并显示进度

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {  [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil];     } error:nil]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; NSProgress *progress = nil; NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithStreamedRequest:request progress:&progress completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {     if (error) {  NSLog(@"Error: %@", error);     } else {  NSLog(@"%@ %@", response, responseObject);     } }]; [uploadTask resume];

方法七：创建一个上传数据data任务

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL]; NSURLSessionDataTask *dataTask = [manager dataTaskWithRequest:request completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {  if (error) {   NSLog(@"Error: %@", error);  } else {   NSLog(@"%@ %@", response, responseObject);  } }]; [dataTask resume];

方法八：获取网络状态

[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {     NSLog(@"Reachability: %@", AFStringFromNetworkReachabilityStatus(status)); }];

方法九： HTTP Manager Reachability

NSURL *baseURL = [NSURL URLWithString:@"http://example.com/"]; AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:baseURL]; NSOperationQueue *operationQueue = manager.operationQueue; [manager.reachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {  switch (status) {   case AFNetworkReachabilityStatusReachableViaWWAN:   case AFNetworkReachabilityStatusReachableViaWiFi:    [operationQueue setSuspended:NO];    break;   case AFNetworkReachabilityStatusNotReachable:   default:    [operationQueue setSuspended:YES];    break;  } }]; [manager.reachabilityManager startMonitoring];

方法十：AFHTTPRequestOperation的GET请求

NSURL *URL = [NSURL URLWithString:@"http://example.com/resources/123.json"]; NSURLRequest *request = [NSURLRequest requestWithURL:URL]; AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request]; op.responseSerializer = [AFJSONResponseSerializer serializer]; [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {     NSLog(@"JSON: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) {     NSLog(@"Error: %@", error); }]; [[NSOperationQueue mainQueue] addOperation:op];

方法十一：Batch of Operations

NSMutableArray *mutableOperations = [NSMutableArray array]; for (NSURL *fileURL in filesToUpload) {  NSURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {   [formData appendPartWithFileURL:fileURL name:@"images[]" error:nil];  }];  AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];  [mutableOperations addObject:operation]; } NSArray *operations = [AFURLConnectionOperation batchOfRequestOperations:@[...] progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) {  NSLog(@"%lu of %lu complete", numberOfFinishedOperations, totalNumberOfOperations); } completionBlock:^(NSArray *operations) {  NSLog(@"All operations in batch complete"); }]; [[NSOperationQueue mainQueue] addOperations:operations waitUntilFinished:NO];

方法十二：获取请求的一些信息(我也没有用过，不太常用)

Request Serialization

Request serializers create requests from URL strings, encoding parameters as either a query string or HTTP body.

NSString *URLString = @"http://example.com"; NSDictionary *parameters = @{@"foo": @"bar", @"baz": @[@1, @2, @3]};

Query String Parameter Encoding

[[AFHTTPRequestSerializer serializer] requestWithMethod:@"GET" URLString:URLString parameters:parameters error:nil];  GET http://example.com?foo=bar&baz[]=1&baz[]=2&baz[]=3

URL Form Parameter Encoding

[[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:URLString parameters:parameters];  POST http://example.com/ Content-Type: application/x-www-form-urlencoded  foo=bar&baz[]=1&baz[]=2&baz[]=3

JSON Parameter Encoding

[[AFJSONRequestSerializer serializer] requestWithMethod:@"POST" URLString:URLString parameters:parameters];  POST http://example.com/ Content-Type: application/json  {"foo": "bar", "baz": [1,2,3]}

我的微信公众号 iOS开发：