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iOS网络编程(7) 第三方开源库----->AFNetworking

2015-09-14 17:12 288 查看
转: http://blog.csdn.net/hmt20130412/article/details/32135235
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。
@原文链接https://github.com/AFNetworking/AFNetworking,我在此基础上了点配置修改
@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];

[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);

}];

*POST请求

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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);

}];

*POST请求(多表)

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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);

}];

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];

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];

*创建一个上传任务

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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];

*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) {

[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];

*创建一个数据流Data任务

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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];

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) {

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

}];

*HTTP Manager 可达性

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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;

}

}];

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"];

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];

*批量多请求

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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];

@其他资料
1.官网
2.英文文档
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