使用 multi-part 和 Alamofire 上传图像

Question

我正在尝试将图像上传到我的后端服务器。创建了一条新记录，但从未上传任何图像：

func uploadDish(dish:Dish, completionHandler: ((AnyObject?, ErrorType?) -> Void)){
    let urlString = "http://backend.com/v1/dish"
    SwiftSpinner.show("Uploading Dish...")
    Alamofire.upload(
        .POST,
        urlString,
        multipartFormData: { multipartFormData in

            if let image = self.image {
                if let imageData : NSData = UIImageJPEGRepresentation(image, 0.1){
                    multipartFormData.appendBodyPart(data: imageData, name: "file", fileName: "testesttest.jpg", mimeType: "image/jpeg")
                }
            }
            multipartFormData.appendBodyPart(data: "foo".dataUsingEncoding(NSUTF8StringEncoding)!, name :"name")
            multipartFormData.appendBodyPart(data: "bar".dataUsingEncoding(NSUTF8StringEncoding)!, name :"address")
            multipartFormData.appendBodyPart(data: "1".dataUsingEncoding(NSUTF8StringEncoding)!, name :"priceRange")
            multipartFormData.appendBodyPart(data: "\(234)".dataUsingEncoding(NSUTF8StringEncoding)!, name :"lat")
            multipartFormData.appendBodyPart(data: "\(234)".dataUsingEncoding(NSUTF8StringEncoding)!, name :"lng")
        },
        encodingCompletion: { encodingResult in
            switch encodingResult {
            case .Success(let upload, _, _):
                print(upload.debugDescription)
                break
            case .Failure(let encodingError):
                print(encodingError)
                break
            }
        }
    )
    SwiftSpinner.hide()
}

在 Postman 中有效：

Answer 1

这其实是正确的，发现错误在后端。

以上方法就是你post图片

使用 multi-part 和 Alamofire 上传图像

Uploading an image using multi-part and Alamofire

multipartform-data

swift

alamofire