使用 Afnetworking 发布没有图像的数据

Posted 2023-02-23

【中文标题】使用 Afnetworking 发布没有图像的数据

【英文标题】：Post data without image using Afnetworking

【发布时间】：2014-09-21 04:58:55

【问题描述】：

我想上传用户信息到服务器。它包含用户头像和用户配置文件数据。现在的问题是用户不总是上传头像，所以如果用户不上传，我想过滤图像，所以有人可以帮我吗？

现在我正在使用此代码上传图片，它工作正常，但即使用户不上传图片，我也想上传

AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:[NSURL URLWithString:BASE_URL]];
        NSData *imageData = UIImagePNGRepresentation(image);
    [manager POST:url parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) 
        [formData appendPartWithFileData:imageData name:@"file" fileName:@"image.png" mimeType:@"image/png"];
     success:^(AFHTTPRequestOperation *operation, id responseObject) 
        NSLog(@"Success %@", responseObject);
        [Util showAlertDialog: NSLocalizedString(@"Success", nil):NSLocalizedString(@"Upload Successful", nil)];
     failure:^(AFHTTPRequestOperation *operation, NSError *error) 
        NSLog(@"Failure %@, %@", error, operation.responseString);
        [ Util showAlertDialog: NSLocalizedString(@"Failed", nil):NSLocalizedString(@"Upload Failed, Please try again", nil)];
    ];

【参考方案1】：

我自己通过发送空的 NSData 解决了这个问题

AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:[NSURL URLWithString:BASE_URL]];
        NSData *imageData;
        CGImageRef cgref = [image CGImage];
        CIImage *cim = [image CIImage];

        if (cim == nil && cgref == NULL)
        
            imageData = [[NSData alloc] init];
        else
            imageData = UIImagePNGRepresentation(image);
        

        [manager POST:url parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) 
        [formData appendPartWithFileData:imageData name:@"file" fileName:@"image.png" mimeType:@"image/png"];
     success:^(AFHTTPRequestOperation *operation, id responseObject) 
        NSLog(@"Success %@", responseObject);
        [MBProgressHUD hideHUDForView:view animated:YES];
        [Util showAlertDialog: NSLocalizedString(@"Success", nil):NSLocalizedString(@"Upload Successful", nil)];
     failure:^(AFHTTPRequestOperation *operation, NSError *error) 
        NSLog(@"Failure %@, %@", error, operation.responseString);
        [MBProgressHUD hideHUDForView:view animated:YES];
        [ Util showAlertDialog: NSLocalizedString(@"Failed", nil):NSLocalizedString(@"Upload Failed, Please try again", nil)];
    ];