使用AFNetworking 2.0加载图像

我正在尝试使用AFNetworking 2.0将照片添加到POST。 此ios应用程序将一张照片发送到博客。 我无法弄清楚图像无法加载的原因。

这是我到目前为止所得到的：

// publish text and image -(void)publishTextAndImage:(NSString*)resultDisplay and:(NSString*)subject with:(NSString*)nonce { imageData = UIImageJPEGRepresentation(selectedImage, 0.7); // create a data object from selected image NSString *myUUID = [[NSUUID UUID] UUIDString]; // create a UUID NSString *formatString = [NSString stringWithFormat:@"",myUUID]; NSString *contentString = [formatString stringByAppendingString:resultDisplay]; NSString *moodString = [NSString stringWithFormat:@"%d",self.moodNumber]; NSDictionary *parameters = @{@"title":subject, @"content":contentString, @"status":@"publish", @"author":@"wordpress", @"user_password":@"xrayyankee", @"nonce":nonce, @"categories":moodString, @"attachment":@"image/jpeg"}; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; [manager POST:@"http://thrills.it/?json=posts/create_post" parameters:parameters constructingBodyWithBlock:^(id formData) { if (selectedImage) { [formData appendPartWithFileData:imageData name:@"photo" fileName:myUUID mimeType:@"image/jpeg"]; } } success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"JSON: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error: %@", error); }]; 

}

谢谢你们

Answer 1

我用这种方式使用AFNetworking：

 AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"http://thrills.it/?json=posts"]]; NSURLRequest *request = [client multipartFormRequestWithMethod:@"POST" path:@"create_post" parameters:parameters constructingBodyWithBlock:^(id formData) { if (selectedImage) { [formData appendPartWithFileData:imageData name:@"photo" fileName:myUUID mimeType:@"image/jpeg"]; } } ]; AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { NSLog(@"JSON: %@", responseObject); } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) { NSLog(@"Error: %@", error); }]; [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { float progressValue = (float)((double)totalBytesWritten/(double)totalBytesExpectedToWrite); NSLog(@"%f", progressValue); }]; [self.queue addOperation:operation]; 

。

 @property (nonatomic, strong) NSOperationQueue *queue; 

我的客户端是先前创建的，但它是这样创建的。

我希望这会有所帮助。

Answer 2

我明白了，代码很好，这是参数命名的一个问题，这里是：

 // publish text and image -(void)publishTextAndImage:(NSString*)resultDisplay and:(NSString*)subject with: (NSString*)nonce { imageData = UIImageJPEGRepresentation(selectedImage, 0.7); // create a data object from selected image NSString *myUUID = [[NSUUID UUID] UUIDString]; // create a UUID NSString *formatString = [NSString stringWithFormat:@"",myUUID]; NSString *contentString = [formatString stringByAppendingString:resultDisplay]; NSString *moodString = [NSString stringWithFormat:@"%d",self.moodNumber]; NSDictionary *parameters = @{@"title":subject, @"content":contentString, @"status":@"publish", @"author":@"wordpress", @"user_password":@"xrayyankee", @"nonce":nonce, @"categories":moodString}; AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; [manager POST:@"http://thrills.it/?json=posts/create_post" parameters:parameters constructingBodyWithBlock:^(id formData) { if (selectedImage) { [formData appendPartWithFileData:imageData name:@"attachment" fileName:myUUID mimeType:@"image/jpeg"]; } } success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"JSON: %@", responseObject); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error: %@", error); }]; 

所以我基本上从参数字典中删除了“attachment”参数，并将附加的imageData的名称更改为@“attachment”。 这是一个wordpress json api非常挑剔的问题（：