AFNetworking 2.5.0版本的使用
http://afnetworking.com/
http://cocoadocs.org/docsets/AFNetworking/2.5.0/
1. 下载源码并进行编译
源码地址 http://pan.baidu.com/s/1jG24w3W
2. 判断当前是否有网络,基准网址为 http://baidu.com/
源码:
可以用来监测WWAN或者WiFi或者断网状态;)
// 基准baseURL NSURL *baseURL = [NSURL URLWithString:@"http://baidu.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]; // 此处可以发送有网络通知 NSLog(@"有网络"); break; case AFNetworkReachabilityStatusNotReachable: default: [operationQueue setSuspended:YES]; // 此处可以发送断网通知 NSLog(@"断网了"); break; } }]; // 开始监测网络 [manager.reachabilityManager startMonitoring];
3. 不带参数的GET请求
源码:
// 初始化网址 NSString *requestAddress = \ @"http://api.openweathermap.org/data/2.5/forecast/daily?lat=39.88293652833437&lon=116.4621119300779&lang=zh_cn"; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; // 不带参数的GET请求 [manager GET:requestAddress parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"%@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"%@", error); }];
4. 带参数GET的请求
源码:
// 初始化网址 NSString *requestAddress = \ @"http://api.openweathermap.org/data/2.5/forecast/daily"; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; // 参数的GET请求 [manager GET:requestAddress parameters:@{@"lat" : @"39.88293652833437", @"lon" : @"116.4621119300779", @"lang" : @"zh_cn"} success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"%@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"%@", error); }];
5. 不带参数的POST请求
源码:
// 初始化网址 NSString *cityName = [@"北京" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString *requestAddress = \ [NSString stringWithFormat:@"http://apis.haoservice.com/weather?cityname=%@&key=1d309cc633984df791b51f48ddf09d4b", cityName]; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer.acceptableContentTypes = \ [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"]; // 不带参数的POST请求 [manager POST:requestAddress parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"%@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"%@", error); }];
6. 带参数的POST请求
源码:
// 初始化网址 NSString *cityName = [@"北京" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString *requestAddress = \ [NSString stringWithFormat:@"http://apis.haoservice.com/weather"]; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer.acceptableContentTypes = \ [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"]; // 带参数的POST请求 [manager POST:requestAddress parameters:@{@"cityname" : cityName, @"key" : @"1d309cc633984df791b51f48ddf09d4b"} success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"%@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"%@", error); }];
附录:
基于URL-form-encodes Body方式的POST请求
// 初始化网址 NSString *cityName = [@"北京" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString *requestAddress = \ [NSString stringWithFormat:@"http://apis.haoservice.com/weather"]; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; // 创建 URL-form-encodes HTTP message bodies manager.requestSerializer = [AFJSONRequestSerializer serializer]; // 接受的数据类型 manager.responseSerializer.acceptableContentTypes = \ [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"]; // 带参数的POST请求 [manager POST:requestAddress parameters:@{@"cityname" : cityName, @"key" : @"1d309cc633984df791b51f48ddf09d4b"} success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"%@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"%@", error); }];
7. 文件下载
// // ViewController.m // AFNetworking2.5.0 // // Created by XianMingYou on 15/2/14. // Copyright (c) 2015年 XianMingYou. All rights reserved. // #import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // 定义一个progress指针 NSProgress *progress; // 创建一个URL链接 NSURL *url = [NSURL URLWithString:@"http://41.duote.com.cn/2345explorer.exe"]; // 初始化一个请求 NSURLRequest *request = [NSURLRequest requestWithURL:url]; // 获取一个Session管理器 AFHTTPSessionManager *session = [AFHTTPSessionManager manager]; // 开始下载任务 NSURLSessionDownloadTask *downloadTask = \ [session downloadTaskWithRequest:request progress:&progress destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) { // 拼接一个文件夹路径 NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil]; // 根据网址信息拼接成一个完整的文件存储路径并返回给block return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]]; } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) { // 结束后移除掉这个progress [progress removeObserver:self forKeyPath:@"fractionCompleted" context:nil]; }]; // 设置这个progress的唯一标示符 [progress setUserInfoObject:@"someThing" forKey:@"Y.X."]; [downloadTask resume]; // 给这个progress添加监听任务 [progress addObserver:self forKeyPath:@"fractionCompleted" options:NSKeyValueObservingOptionNew context:nil]; } - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if ([keyPath isEqualToString:@"fractionCompleted"] && [object isKindOfClass:[NSProgress class]]) { NSProgress *progress = (NSProgress *)object; NSLog(@"Progress is %f", progress.fractionCompleted); } } @end
8. 文件上传
单文件上传 - (没有办法做试验演示)
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];
多文件上传 - (没有办法做试验演示)
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(idformData) { [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];
9. Request Serialization
Request serializers create requests from URL strings, encoding parameters as either a query string or HTTP body.
请求序列化是为了从URL字符串创建出编码后的参数,或者是序列字典,或者是HTTP实体.
NSString *URLString = @"http://example.com";
NSDictionary *parameters = @{@"foo": @"bar", @"baz": @[@1, @2, @3]};
QUERY STRING PARAMETER ENCODING
字符串序列编码
[[AFHTTPRequestSerializer serializer] requestWithMethod:@"GET" URLString:URLString parameters:parameters error:nil];
GET请求 http://example.com?foo=bar&baz[]=1&baz[]=2&baz[]=3
URL FORM PARAMETER ENCODING
URL表单编码
[[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:URLString parameters:parameters];
POST请求 http://example.com/
Content-Type: application/x-www-form-urlencoded
foo=bar&baz[]=1&baz[]=2&baz[]=3
JSON PARAMETER ENCODING
JSON编码
[[AFJSONRequestSerializer serializer] requestWithMethod:@"POST" URLString:URLString parameters:parameters];
POST请求 http://example.com/
Content-Type: application/json
{"foo": "bar", "baz": [1,2,3]}
注: POST分为JSON或者URL表单编码