更新的Alamofire 4.0.0没有提到如何使用Httpmethod&使用multipartFormData上传的Httpheaders.这就是我google并在stackoverflow问题中找到解决方案的原因.但问题是我做了同样的回答然后得到以下错误消息和建设失败.请帮我解决一下.
Type of expression is ambiguous without more context
这是我的编码：
let URL = try! URLRequest(url: Config.imageUploadURL,method: .post,headers: headers)
Alamofire.upload(
multipartFormData: { multipartFormData in
multipartFormData.append(self.imageData,withName: "image",fileName: "file.png",mimeType: "image/png")
},to: URL,encodingCompletion: { encodingResult in
switch encodingResult {
case .success(let upload,_,_):
upload.responseJSON { response in
if((response.result.value) != nil) {
} else {
}
}
case .failure( _):
}
}
)
Alamofire.upload(multipartFormData：to：encodingCompletion :)对于to：参数采用URLConvertible.相反,你应该使用Alamofire.upload(multipartFormData：with：encodingCompletion :),它带有一个URLRequestConvertible,带有：参数.
我认为URL的参数名称与URL()类型相同有助于创建奇怪的编译器错误.
以下编译对我来说：
let url = try! URLRequest(url: URL(string:"www.google.com")!,headers: nil)
Alamofire.upload(
multipartFormData: { multipartFormData in
multipartFormData.append(Data(),with: url,_):
upload.responseJSON { response in
if((response.result.value) != nil) {
} else {
}
}
case .failure( _):
break
}
}
)
