ios 对于AFNetworking3.0的基本使用
AFNetworking在3.0版本中删除了基于 NSURLConnection API的所有支持。AFHTTPRequestOperationManager已经抛弃,所以需要对数据请求进行改动。
Get请求
1 //使用代码 2 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; 3 manager.responseSerializer = [AFHTTPResponseSerializer serializer]; 4 [manager GET:url parameters:nil success:^(NSURLSessionDataTask *task, id responseObject) { 5 //成功 6 NSDictionary *obj = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil]; 7 } failure:^(NSURLSessionDataTask *task, NSError *error) { 8 //失败 9 }];
- 当我们调用get函数之前,我们需要创建一个AFHTTPSessionManager,在之前我们使用的一般是AFHTTPRequestOperationManager.
- 在调用get请求后,我们一般都不需要干什么了,因为那些繁琐复杂的网络通信都交给他去做了,他首先会调用AFNetworkReachabilityManager验证是否联网.
- 然后参数序列化,用于网络请求.
- 调用AFSecurityPolicy类,AFSecurityPolicy用于验证HTTPS请求的证书,简单来说建立连接.
- 连接建立完成,证书验证成功,开始请求服务器.
- 从服务器返回数据,解析服务器数据,将数据反序列化.
- 我们得到data类型的数据,可以使用JSON解析直接解析成字典使用.弃用的类:
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AFURLConnectionOperation AFHTTPRequestOperation AFHTTPRequestOperationManager
- 两者之间对比
AFN2.0:
NSURL *URL = [NSURL URLWithString:@""]; 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];
AFN3.0: -
- (void)GETUrl:(NSString *)url parameters:(NSDictionary *)parameters success:(void (^)(id))success failure:(void (^)(NSError *))failure { if (!_sessionGetManager) { _sessionGetManager = [AFHTTPSessionManager manager]; //设置请求格式 _sessionGetManager.responseSerializer = [AFJSONResponseSerializer serializer];; } // 设置请求超时时间 // _sessionGetManager.requestSerializer.timeoutInterval = 10; //设置允许接受返回数据类型 _sessionGetManager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/html", @"text/json",@"text/plain", @"text/javascript", nil]; NSLog(@"%@",url); [_sessionGetManager GET:url parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { success(responseObject); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"********%@",error); // if (task.state == 2) { // return ; // } failure(error); }]; }
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- (void)POSTUrl:(NSString *)url parameters:(NSDictionary *)parameters success:(void (^)(id))success failure:(void (^)(NSError *))failure { if (!_sessionPostManager) { _sessionPostManager = [AFHTTPSessionManager manager]; //接收数据类型 --->JSON _sessionPostManager.responseSerializer = [AFJSONResponseSerializer serializer]; } //接收数据类型 --->JSON _sessionPostManager.responseSerializer = [AFJSONResponseSerializer serializer]; //访问超时时间 _sessionPostManager.requestSerializer.timeoutInterval = 30.f; _sessionPostManager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript", @"text/html",@"text/plain",nil]; NSLog(@"url =%@",url); [_sessionPostManager POST:url parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { success(responseObject); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"%@",error); failure(error); }]; }
AFN3.0下载方法:
/** * AFN3.0 下载 */ - (void)downLoad{ //1.创建管理者对象 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; //2.确定请求的URL地址 NSURL *url = [NSURL URLWithString:@"" //如果报接受类型不一致请替换一致text/html或别的 manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"]; ]; //3.创建请求对象 NSURLRequest *request = [NSURLRequest requestWithURL:url]; //下载任务 NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) { //打印下下载进度 WKNSLog(@"%lf",1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount); } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) { //下载地址 WKNSLog(@"默认下载地址:%@",targetPath); //设置下载路径,通过沙盒获取缓存地址,最后返回NSURL对象 NSString *filePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject]; return [NSURL URLWithString:filePath]; } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) { //下载完成调用的方法 WKNSLog(@"下载完成:"); WKNSLog(@"%@--%@",response,filePath); }]; //开始启动任务 [task resume]; }
监测当前网络状态(网络监听)
- (void)AFNetworkStatus{ //1.创建网络监测者 AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager]; /*枚举里面四个状态 分别对应 未知 无网络 数据 WiFi typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) { AFNetworkReachabilityStatusUnknown = -1, 未知 AFNetworkReachabilityStatusNotReachable = 0, 无网络 AFNetworkReachabilityStatusReachableViaWWAN = 1, 蜂窝数据网络 AFNetworkReachabilityStatusReachableViaWiFi = 2, WiFi }; */ [manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { //这里是监测到网络改变的block 可以写成switch方便 //在里面可以随便写事件 switch (status) { case AFNetworkReachabilityStatusUnknown: WKNSLog(@"未知网络状态"); break; case AFNetworkReachabilityStatusNotReachable: WKNSLog(@"无网络"); break; case AFNetworkReachabilityStatusReachableViaWWAN: WKNSLog(@"蜂窝数据网"); break; case AFNetworkReachabilityStatusReachableViaWiFi: WKNSLog(@"WiFi网络"); break; default: break; } }] ; }
AFN3.0 上传
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/** * AFN 3.0 上传 * 有两种方式 * upLoad1 和 upLoad2 */ //第一种方法是通过工程中的文件进行上传 - (void)upLoad1{ //1。创建管理者对象 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; //2.上传文件 NSDictionary *dict = @{@"username":@"1234"}; NSString *urlString = @"22222"; [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) { //上传文件参数 UIImage *iamge = [UIImage imageNamed:@"123.png"]; NSData *data = UIImagePNGRepresentation(iamge); //这个就是参数 [formData appendPartWithFileData:data name:@"file" fileName:@"123.png" mimeType:@"image/png"]; } progress:^(NSProgress * _Nonnull uploadProgress) { //打印下上传进度 WKNSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount); } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { //请求成功 WKNSLog(@"请求成功:%@",responseObject); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { //请求失败 WKNSLog(@"请求失败:%@",error); }]; } //第二种是通过URL来获取路径,进入沙盒或者系统相册等等 - (void)upLoda2{ //1.创建管理者对象 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; //2.上传文件 NSDictionary *dict = @{@"username":@"1234"}; NSString *urlString = @"22222"; [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) { [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"文件地址"] name:@"file" fileName:@"1234.png" mimeType:@"application/octet-stream" error:nil]; } progress:^(NSProgress * _Nonnull uploadProgress) { //打印下上传进度 WKNSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount); } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { //请求成功 WKNSLog(@"请求成功:%@",responseObject); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { //请求失败 WKNSLog(@"请求失败:%@",error); }]; }
- 最后附上Github地址:https://github.com/wy08/RequestModel