AFNetworking & Reachability 教程

1.AFN http get

AFHTTPRequestOperationManager内部包装了NSURLConnection

- (void)afnHttpGet{
    AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
    NSDictionary *params = @{@"username" : @"solozyx",@"pwd" : @"solozyx"};
    [mgr GET:@"http://www.example.com:8080/login"
  parameters:params
     success:^(AFHTTPRequestOperation *operation, id responseObject) {
         NSLog(@"请求成功---%@", responseObject);
     }
     failure:^(AFHTTPRequestOperation *operation, NSError *error) {
         NSLog(@"请求失败---%@", error);
     }];
}

// {success = "请求成功";}

AFHTTPSessionManager内部包装了NSURLSession

- (void)afnHttpGet2{
    AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
    NSDictionary *params = @{@"username" : @"solozyx",@"pwd" : @"solozyx"};
    [mgr GET:@"http://www.example.com:8080/login"
  parameters:params
     success:^(NSURLSessionDataTask *task, id responseObject) {
         NSLog(@"请求成功---%@", responseObject);
     }
     failure:^(NSURLSessionDataTask *task, NSError *error) {
         NSLog(@"请求失败---%@", error);
     }];
}

// {success = "请求成功";}

2.AFN http post

- (void)afnHttpPost{
    AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
    NSDictionary *params = @{@"username" : @"solozyx",@"pwd" : @"solozyx"};
    [mgr POST:@"http://www.example.com:8080/login"
   parameters:params
      success:^(AFHTTPRequestOperation *operation, id responseObject) {
          NSLog(@"请求成功---%@", responseObject);
      }
      failure:^(AFHTTPRequestOperation *operation, NSError *error) {
          NSLog(@"请求失败---%@", error);
      }];
}

// {success = "请求成功";}

3.AFN http uoload

- (void)afnHttpUpload{
    AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
    NSDictionary *params = @{@"username" : @"123"};
            
    [mgr                  POST:@"http://120.25.226.186:32812/upload"
                    parameters:params
     constructingBodyWithBlock:^(id formData) {
                            // 在这个block中设置需要上传的文件
                            NSData *data = [NSData dataWithContentsOfFile:@"/Users/admin/Desktop/afnuploadtest.png"];
                            [formData appendPartWithFileData:data               // 文件数据
                                                        name:@"file"            // 服务端接收文件的参数
                                                    fileName:@"test.png"        // 上传到服务端保存的文件名
                                                    mimeType:@"image/png"];     // 上传文件类型
         
                            /*
                            [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"/Users/admin/Desktop/afnuploadtest.png"]
                                                       name:@"file"
                                                   fileName:@"xxx.png"
                                                   mimeType:@"image/png"
                                                      error:nil];
                            */
                            
                            /*
                            [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"/Users/admin/Desktop/afnuploadtest.png"]
                                                       name:@"file"
                                                      error:nil];
                            */
                       }
                       success:^(NSURLSessionDataTask *task, id responseObject) {
                           NSLog(@"上传成功---%@", responseObject);
                       }
                       failure:^(NSURLSessionDataTask *task, NSError *error) {
                           NSLog(@"上传成功---%@", error);
                       }
     ];
}

// {success = "请求成功";}

AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
[mgr uploadTaskWithRequest:(NSURLRequest *)
                  fromData:(NSData *)
                  progress:(NSProgress *__autoreleasing *)
         completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
                            //code
                        }];

afn download

AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];

mgr downloadTaskWithRequest:<#(NSURLRequest *)#>
 progress:<#(NSProgress *__autoreleasing *)#> 
destination:<#^NSURL *(NSURL *targetPath, NSURLResponse *response)destination#> 
completionHandler:<#^(NSURLResponse *response, NSURL *filePath, NSError *error)completionHandler#>

4.AFN默认解析http响应数据格式是JSON,设置解析数据格式为XML

- (void)afnHttpResponseXml{
    AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
    
    // responseSerializer 用来解析服务器返回的数据
    
    // 告诉AFN，以XML形式解析服务器返回的数据
    mgr.responseSerializer = [AFXMLParserResponseSerializer serializer];
    
    NSDictionary *params = @{@"username" : @"solozyx",@"pwd" : @"solozyx",@"type" : @"XML"};
    
    [mgr GET:@"http://www.example.com:8080/login"
  parameters:params
     success:^(NSURLSessionDataTask *task, NSXMLParser *parser) {
         NSLog(@"请求成功---%@", parser);
     }
     failure:^(NSURLSessionDataTask *task, NSError *error) {
         NSLog(@"请求失败---%@", error);
     }];
}
// 请求成功---

5.AFN设置使用http响应二进制数据格式

- (void)afnHttpResponseOriginal{
    AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
    
    // 直接使用“服务器本来返回的数据”，不做任何解析
    mgr.responseSerializer = [AFHTTPResponseSerializer serializer];

    //[AFJSONResponseSerializer serializer];        // 解析服务器返回的JSON数据
    //[AFXMLParserResponseSerializer serializer];   // 解析服务器返回的XML数据
    
    [mgr GET:@"http://www.example.com:8080/resources/images/minion_02.png"
  parameters:nil
     success:^(NSURLSessionDataTask *task, NSData *responseObject) {
         NSLog(@"请求成功---%zd", responseObject.length);
     }
     failure:^(NSURLSessionDataTask *task, NSError *error) {
         NSLog(@"请求失败---%@", error);
     }];
}
// 请求成功---43852

6.AFN network monitoring

#pragma mark - AFNetworkReachability
- (void)afnNetworkMonitoring{
    // 开始网络监控
    AFNetworkReachabilityManager *mgr = [AFNetworkReachabilityManager sharedManager];
    [mgr setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        NSLog(@"当前的网络状态---%zd", status);
    }];
    [mgr startMonitoring];
    
    // 拿到当前网络状态
    // mgr.networkReachabilityStatus;
}

//当前的网络状态---2

7.Apple 官方 Reachability

/** 监控网络 */
@property (nonatomic, strong) Reachability *reachability;


#pragma mark - Reachability internet notifier
- (void)appleMonitoring{
    // 监听通知
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(getNetworkStatus)
                                                 name:kReachabilityChangedNotification
                                               object:nil];
    // 开始监控网络
    self.reachability = [Reachability reachabilityForInternetConnection];
    [self.reachability startNotifier];
}

- (void)getNetworkStatus{
    if ([Reachability reachabilityForLocalWiFi].currentReachabilityStatus != NotReachable) {
        NSLog(@"是wifi");
    } else if ([Reachability reachabilityForInternetConnection].currentReachabilityStatus != NotReachable) {
        NSLog(@"是手机自带网络");
    } else {
        NSLog(@"网络有问题");
    }
}

- (void)dealloc{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [self.reachability stopNotifier];
    self.reachability = nil;
}


// Reachability Flag Status: -- ------- networkStatusForFlags
// 网络有问题
// Reachability Flag Status: -R ------d localWiFiStatusForFlags
// 是wifi