AFHTTPRequestOperationManager如何从服务器获取响应

Question

如何获得JSON响应？如果PHP打印一些JSON整个请求失败，如果PHP没有打印任何内容，则响应成功。如何使用AFHTTPRequestOperation？

 AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
        NSDictionary *parameters = @{@"foo":@"barr"};
        UIImage *image = myImage.image;
        [manager POST:@"http://local/index.php"
           parameters:parameters
    constructingBodyWithBlock:^(id<AFMultipartFormData> formData){
        [formData appendPartWithFileData:UIImageJPEGRepresentation(image, 0.7)
                                    name:@"file"
                                fileName:@"photo.jpg"
                                mimeType:@"image/jpeg"];
    }
              success:^(AFHTTPRequestOperation *operation, id responseObject){
                  NSLog(@"Success: %@", responseObject);
              }
              failure:^(AFHTTPRequestOperation *operation, NSError *error){
                  NSLog(@"Error %@", operation.responseString);
              }];

Answer 1

在成功区块尝试：

NSError *e;
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:[operation.responseString dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:&e];