AFNetworking是一个为 iOS 和 Mac OSX 制作的令人愉快的网络库

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AFNetworking是一个为 iOS 和 Mac OSX 制作的令人愉快的网络库，它建立在URL 装载系统框架的顶层，内置在Cocoa里，扩展了强有力的高级网络抽象。它的模块架构被良好的设计，拥有丰富的功能，因此，使用起来，必定赏心悦目。

@介绍
　　1.支持HTTP请求和基于REST的网络服务(包括GET、POST、 PUT、DELETE等)
　　2.支持ARC
　　3.要求iOS 5.0及以上版本
　　4.UIKit扩展
@配置
1.下载AFNetworking,将2个文件夹:AFNetworking和UIKit+AFNetworking拖入工程
2.导入以下库文件:CFNetwork、Security、SystemConfiguration、MobileCoreServices
3.如果你以前用的是1.0版本,那么AFNetworking 2.0 Migration Guide能帮助你
4.如果你是用CocoaPods配置的,那么
platform:ios,'7.0'
pod"AFNetworking","~>2.0"
@使用
1.HTTP请求操作
AFHTTPRequestOperationManager封装的共同模式与web应用程序通过HTTP通信,包括创建请求,响应序列化,网络可达性监控、运营管理和安全,以及请求。
*GET请求

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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

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[manager GET:@"http://example.com/resources.json" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {

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NSLog(@"JSON: %@", responseObject);

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} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

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NSLog(@"Error: %@", error);

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}];

*POST请求

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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

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NSDictionary *parameters = @{@"foo": @"bar"};

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[manager POST:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {

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NSLog(@"JSON: %@", responseObject);

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} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

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NSLog(@"Error: %@", error);

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}];

*POST请求(多表)

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AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

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NSDictionary *parameters = @{@"foo": @"bar"};

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NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];

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[manager POST:@"http://example.com/resources.json" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

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[formData appendPartWithFileURL:filePath name:@"image" error:nil];

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} success:^(AFHTTPRequestOperation *operation, id responseObject) {

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NSLog(@"Success: %@", responseObject);

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} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

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NSLog(@"Error: %@", error);

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}];

2.AFURLSessionManager(NSURLSession详细见网络编程(6))
创建和管理制定的NSURLSession对象NSURLSessionConfiguration对象必须实现<NSURLSessionTaskDelegate>, <NSURLSessionDataDelegate>, <NSURLSessionDownloadDelegate>, <NSURLSessionDelegate>协议
*创建一个下载任务

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NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

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AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

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NSURL *URL = [NSURL URLWithString:@"http://example.com/download.zip"];

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NSURLRequest *request = [NSURLRequest requestWithURL:URL];

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NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {

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NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];

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return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]];

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} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {

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NSLog(@"File downloaded to: %@", filePath);

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}];

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[downloadTask resume];

*创建一个上传任务

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NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

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AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

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NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"];

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NSURLRequest *request = [NSURLRequest requestWithURL:URL];

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NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];

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NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:filePath progress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {

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if (error) {

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NSLog(@"Error: %@", error);

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} else {

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NSLog(@"Success: %@ %@", response, responseObject);

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}

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}];

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[uploadTask resume];

*创建一个带多表,进度的上传任务

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NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

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[formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil];

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} error:nil];

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AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

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NSProgress *progress = nil;

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NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithStreamedRequest:request progress:&progress completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {

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if (error) {

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NSLog(@"Error: %@", error);

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} else {

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NSLog(@"%@ %@", response, responseObject);

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}

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}];

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[uploadTask resume];

*创建一个数据流Data任务

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NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

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AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

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NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"];

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NSURLRequest *request = [NSURLRequest requestWithURL:URL];

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NSURLSessionDataTask *dataTask = [manager dataTaskWithRequest:request completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {

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if (error) {

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NSLog(@"Error: %@", error);

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} else {

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NSLog(@"%@ %@", response, responseObject);

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}

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}];

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[dataTask resume];

3.网络监测(一般会用另一个网络监测类,Reachability,还有JSON解析方法,反正我也一般不用,自行脑补)
AFNetworkReachabilityManager监控网络领域的可达性,WWAN地址和WiFi接口.
*当前网络状态

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[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {

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NSLog(@"Reachability: %@", AFStringFromNetworkReachabilityStatus(status));

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}];
*HTTP Manager 可达性

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NSURL *baseURL = [NSURL URLWithString:@"http://example.com/"];

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AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:baseURL];

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NSOperationQueue *operationQueue = manager.operationQueue;

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[manager.reachabilityManager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {

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switch (status) {

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case AFNetworkReachabilityStatusReachableViaWWAN:

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case AFNetworkReachabilityStatusReachableViaWiFi:

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[operationQueue setSuspended:NO];

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break;

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case AFNetworkReachabilityStatusNotReachable:

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default:

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[operationQueue setSuspended:YES];

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break;

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}

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}];

4.AFHTTPRequestOperation
AFHTTPRequestOperation是使用HTTP或HTTPS协议的AFURLConnectionOperation的子类。
它封装的获取后的HTTP状态和类型将决定请求的成功与否。虽然AFHTTPRequestOperationManager通常是最好的去请求的方式，但是AFHTTPRequestOpersion也能够单独使用。
*GET请求

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NSURL *URL = [NSURL URLWithString:@"http://example.com/resources/123.json"];

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NSURLRequest *request = [NSURLRequest requestWithURL:URL];

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AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];

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op.responseSerializer = [AFJSONResponseSerializer serializer];

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[op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

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NSLog(@"JSON: %@", responseObject);

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} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

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NSLog(@"Error: %@", error);

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}];

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[[NSOperationQueue mainQueue] addOperation:op];
*批量多请求

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NSMutableArray *mutableOperations = [NSMutableArray array];

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for (NSURL *fileURL in filesToUpload) {

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NSURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

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[formData appendPartWithFileURL:fileURL name:@"images[]" error:nil];

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}];

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AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

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[mutableOperations addObject:operation];

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}

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NSArray *operations = [AFURLConnectionOperation batchOfRequestOperations:@[...] progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) {

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NSLog(@"%lu of %lu complete", numberOfFinishedOperations, totalNumberOfOperations);

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} completionBlock:^(NSArray *operations) {

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NSLog(@"All operations in batch complete");

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}];

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[[NSOperationQueue mainQueue] addOperations:operations waitUntilFinished:NO];

转载至OSCHINA:http://my.oschina.net/lewis180/blog/394981

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