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ios - AFNetworking上传图片,

我这里用AFNetworking上传图片
报The data couldn’t be read because it isn’t in the correct format.有人帮忙看看是哪里出问题了么?下面是我写的代码。

    AFHTTPRequestOperationManager *m = [AFHTTPRequestOperationManager manager];
    m.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html", @"application/json", nil];
    m.requestSerializer = [AFHTTPRequestSerializer serializer];
    [m.requestSerializer setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];
    
    NS_APPDebugLog(@"请求链接:%@/%@", urlString, parametersDic);
    
    [m POST:@"http://59.48.96.118:7001/portal/SI_USR00025/upload.do" parameters:nil
                constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
        for (int i = 0; i < imagePickerArray.count; i++)
        {
            UIImage *portraitImg = imagePickerArray[i];
            portraitImg = [UIImage scaleToSize:portraitImg];
            portraitImg = [portraitImg fixOrientation];
            NSData *imageData = [NSData compressImage:portraitImg];
            [formData appendPartWithFileData:imageData
                                        name:[NSString stringWithFormat:@"img.img%d", i+1]
                                    fileName:@"image.png"
                                    mimeType:@"image/png"];
        }
    } success:^(AFHTTPRequestOperation * _Nonnull operation, id  _Nonnull responseObject) {
        NSLog(@"成功");
    } failure:^(AFHTTPRequestOperation * _Nullable operation, NSError * _Nonnull error) {
        NSLog(@"失败");
        dispatch_async(dispatch_get_main_queue(),^{failure(error);});
    }];
高洛峰高洛峰2889 天前349

全部回复(3)我来回复

  • PHPz

    PHPz2017-04-18 09:20:14

    这里有几个问题:

    1. mime 的设置有一些矛盾:

      [m.requestSerializer setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];
       [formData appendPartWithFileData:imageData name:[NSString stringWithFormat:@"img.img%d", i+1] fileName:@"image.png" mimeType:@"image/png"];

      这两个地方你分别设置了两种mime,multipart/form-dataimage/png。哪一个是正确的?需要跟后台沟通一下。multipart/form-dataimage/png。哪一个是正确的?需要跟后台沟通一下。

    2. 跟后台联调一下,收到你的请求了吗?请求什么内容?他返回的什么?这个错似乎一般是解析json的时候报,也许是后台没有返回合法 json。另外,你的请求是一次性上传多个文件,不知道你的后台接口是否支持,可以尝试只传一张图片。

    3. AFNetworking 的块里不需要调dispatch_async(dispatch_get_main_queue()...

    跟后台联调一下,收到你的请求了吗?请求什么内容?他返回的什么?这个错似乎一般是解析json的时候报,也许是后台没有返回合法 json。另外,你的请求是一次性上传多个文件,不知道你的后台接口是否支持,可以尝试只传一张图片。🎜🎜 🎜🎜AFNetworking 的块里不需要调dispatch_async(dispatch_get_main_queue()...它已经是帮你回到主线程执行的。🎜🎜 🎜

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    0
  • 大家讲道理

    大家讲道理2017-04-18 09:20:14

    能否把 imageData 的数据打印出来?

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    0
  • PHP中文网

    PHP中文网2017-04-18 09:20:14

    请问lz解决了吗?
    我也遇到报The data couldn’t be read because it isn’t in the correct format.
    但是事实上图片上传成功了
    客户端代码:- (IBAction)upload:(id)sender {

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
     NSString *url3 = @"http://127.0.0.1:5000/upload";

    [manager POST:url3 parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {

        UIImage *image = [UIImage imageNamed:@"star"];
        NSData *imageData = UIImagePNGRepresentation(image);
        NSString *fileName = @"star.png";
        [formData appendPartWithFileData:imageData
                                    name:@"file"
                                fileName:fileName
                                mimeType:@"image/png"];    
    } progress:^(NSProgress *_Nonnull uploadProgress) {
    } success:^(NSURLSessionDataTask *_Nonnull task, id _Nullable responseObject) {
        NSLog(@"upload completed:%@",responseObject);
    } failure:^(NSURLSessionDataTask *_Nullable task, NSError * _Nonnull error) {
        NSLog(@"upload failed");
        NSLog(@"%@",error.localizedDescription);
    }];

    }

    后端代码(python):
    class receive(restful.Resource):

    def post(self):
        file = request.files['file']
        file.save(os.path.join(app.config['UPLOAD_FOLDER'], 'star2.png'))
        return 'upload completed'
    

    api.add_resource(receive, '/upload', methods=['POST'])

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