網絡之AFNetworking

Json、Xml解析第三方庫多了去,就不一一說明,如今開始進入AFNetworking。因爲AFNetworking支持ARC,ASI不支持ARC,如今愈來愈多的開始使用AFNetworking.

http://blog.csdn.net/huang2009303513/article/details/41039681 用法都是同樣的,保存起來防止博客丟失

//在請求響應時，有時候響應的內容多是text/html、text/plain格式,因此須要在AFURLResponseSerialization.m文件的serializerWithReadingOptions方法(223行)
//     self.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript", @"text/html",@"text/plain", nil];

 

/** 
 要使用常規的AFN網絡訪問 
  
 1. AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; 
  
    全部的網絡請求,均有manager發起 
  
 2. 須要注意的是,默認提交請求的數據是二進制的,返回格式是JSON 
  
    1> 若是提交數據是JSON的,須要將請求格式設置爲AFJSONRequestSerializer 
    2> 若是返回格式不是JSON的, 
  
 3. 請求格式 
  
     AFHTTPRequestSerializer            二進制格式 
     AFJSONRequestSerializer            JSON 
     AFPropertyListRequestSerializer    PList(是一種特殊的XML,解析起來相對容易) 
  
 4. 返回格式 
  
     AFHTTPResponseSerializer           二進制格式 
     AFJSONResponseSerializer           JSON 
     AFXMLParserResponseSerializer      XML,只能返回XMLParser,還須要本身經過代理方法解析 
     AFXMLDocumentResponseSerializer (Mac OS X) 
     AFPropertyListResponseSerializer   PList 
     AFImageResponseSerializer          Image 
     AFCompoundResponseSerializer       組合 
 */  

 

#pragma mark - 檢測網絡鏈接  
- (void)reach  
{  
    /** 
     AFNetworkReachabilityStatusUnknown          = -1,  // 未知 
     AFNetworkReachabilityStatusNotReachable     = 0,   // 無鏈接 
     AFNetworkReachabilityStatusReachableViaWWAN = 1,   // 3G 花錢 
     AFNetworkReachabilityStatusReachableViaWiFi = 2,   // 局域網絡,不花錢 
     */  
    // 若是要檢測網絡狀態的變化,必須用檢測管理器的單例的startMonitoring  
    [[AFNetworkReachabilityManager sharedManager] startMonitoring];  
      
    // 檢測網絡鏈接的單例,網絡變化時的回調方法  
    [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {  
        NSLog(@"%d", status);  
    }];  
}  
  
#pragma mark - Session 下載  
- (void)sessionDownload  
{  
    NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];  
    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:config];  
      
    NSString *urlString = @"http://localhost/itcast/videos/01.C語言-語法預覽.mp4";  
    urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];  
      
    NSURL *url = [NSURL URLWithString:urlString];  
    NSURLRequest *request = [NSURLRequest requestWithURL:url];  
      
    NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {  
        // 指定下載文件保存的路徑  
//        NSLog(@"%@ %@", targetPath, response.suggestedFilename);  
        // 將下載文件保存在緩存路徑中  
        NSString *cacheDir = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];  
        NSString *path = [cacheDir stringByAppendingPathComponent:response.suggestedFilename];  
          
        // URLWithString返回的是網絡的URL,若是使用本地URL,須要注意  
        NSURL *fileURL1 = [NSURL URLWithString:path];  
        NSURL *fileURL = [NSURL fileURLWithPath:path];  
          
        NSLog(@"== %@ |||| %@", fileURL1, fileURL);  
          
        return fileURL;  
    } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {  
        NSLog(@"%@ %@", filePath, error);  
    }];  
      
    [task resume];  
}  
  
#pragma mark - POST JSON  
- (void)postJSON  
{  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
      
    NSDictionary *dict = @{@"name": @"zhangsan"};  
    NSDictionary *dict1 = @{@"name": @"wangwu"};  
    NSArray *array = @[dict, dict1];  
    // 設置請求格式  
    manager.requestSerializer = [AFJSONRequestSerializer serializer];  
    // 設置返回格式  
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];  
      
    [manager POST:@"http://localhost/postjson.php" parameters:array success:^(AFHTTPRequestOperation *operation, id responseObject) {  
        NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];  
          
        NSLog(@"%@", result);  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
          
    }];  
      
}  
  
#pragma mark - 隨機文件名上傳  
- (void)postUpload1  
{  
    // 本地上傳給服務器時,沒有肯定的URL,很差用MD5的方式處理  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];  
      
    [manager POST:@"http://localhost/demo/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {  
          
        NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"頭像1.png" withExtension:nil];  
          
        // 要上傳保存在服務器中的名稱  
        // 使用時間來做爲文件名 2014-04-30 14:20:57.png  
        // 讓不一樣的用戶信息,保存在不一樣目錄中  
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];  
        // 設置日期格式  
        formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";  
        NSString *fileName = [formatter stringFromDate:[NSDate date]];  
          
        [formData appendPartWithFileURL:fileURL name:@"uploadFile" fileName:fileName mimeType:@"image/png" error:NULL];  
          
    } success:^(AFHTTPRequestOperation *operation, id responseObject) {  
        NSLog(@"OK");  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
        NSLog(@"error");  
    }];  
}  
  
#pragma mark - POST上傳  
- (void)postUpload  
{  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
    // AFHTTPResponseSerializer就是正常的HTTP請求響應結果:NSData  
    // 當請求的返回數據不是JSON,XML,PList,UIImage以外,使用AFHTTPResponseSerializer  
    // 例如返回一個html,text...  
    //  
    // 實際上就是AFN沒有對響應數據作任何處理的狀況  
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];  
      
    // formData是遵照了AFMultipartFormData的對象  
    [manager POST:@"http://localhost/demo/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {  
          
        // 將本地的文件上傳至服務器  
        NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"頭像1.png" withExtension:nil];  
          
        [formData appendPartWithFileURL:fileURL name:@"uploadFile" error:NULL];  
    } success:^(AFHTTPRequestOperation *operation, id responseObject) {  
        NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];  
          
        NSLog(@"完成 %@", result);  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
        NSLog(@"錯誤 %@", error.localizedDescription);  
    }];  
}  
  
#pragma mark - JSON  
- (void)XMLData  
{  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
      
    // 返回的數據格式是XML  
    manager.responseSerializer = [AFXMLParserResponseSerializer serializer];  
      
    NSDictionary *dict = @{@"format": @"xml"};  
      
    // 網絡訪問是異步的,回調是主線程的,所以程序員不用管在主線程更新UI的事情  
    [manager GET:@"http://localhost/videos.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
          
        // 若是結果是XML,一樣須要使用6個代理方法解析,或者使用第三方庫  
        // 第三方庫第三方框架,效率低,內存泄漏  
        NSLog(@"%@", responseObject);  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
        NSLog(@"%@", error);  
    }];  
}  
  
#pragma mark - JSON  
- (void)JSONData  
{  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
      
    // 本來須要拼接get訪問URL ? & =  
    NSDictionary *dict = @{@"format": @"json"};  
      
    // 網絡訪問是異步的,回調是主線程的,所以程序員不用管在主線程更新UI的事情  
    [manager GET:@"http://localhost/videos.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
        NSLog(@"%@", responseObject);  
        // 提問:NSURLConnection異步方法回調,是在子線程  
        // 獲得回調以後,一般更新UI,是在主線程  
        NSLog(@"%@", [NSThread currentThread]);  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
        NSLog(@"%@", error);  
    }];  
}  
  
#pragma mark - POST登陸  
- (void)postLogin  
{  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
      
    // 本來須要拼接get訪問URL ? & =  
    NSDictionary *dict = @{@"username": @"wangwu", @"password" : @"wang"};  
      
    // 網絡訪問是異步的,回調是主線程的,所以程序員不用管在主線程更新UI的事情  
    [manager POST:@"http://localhost/login.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
        NSLog(@"%@", responseObject);  
        // 提問:NSURLConnection異步方法回調,是在子線程  
        // 獲得回調以後,一般更新UI,是在主線程  
        NSLog(@"%@", [NSThread currentThread]);  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
        NSLog(@"%@", error);  
    }];  
}  
  
#pragma mark - GET登陸  
- (void)getLogin  
{  
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];  
      
    // 本來須要拼接get訪問URL ? & =  
    NSDictionary *dict = @{@"username": @"wangwu", @"password" : @"wang"};  
      
    // 網絡訪問是異步的,回調是主線程的,所以程序員不用管在主線程更新UI的事情  
    [manager GET:@"http://localhost/login.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {  
        NSLog(@"%@", responseObject);  
        // 提問:NSURLConnection異步方法回調,是在子線程  
        // 獲得回調以後,一般更新UI,是在主線程  
        NSLog(@"%@", [NSThread currentThread]);  
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {  
        NSLog(@"%@", error);  
    }];  
}