Ios 如何在Swift4中通过多参数多部分表单数据上传图像或文件
通过图像选择器控制器上载图片或文件时出现问题。我通过图像选择器选择了图像,然后传递参数event\u id、booking\u id、memeber\u id和upfile。所有这些值都是Postman中的表单数据格式。如何将这些值发送到API?在postman中,它运行得很好,但在Xcode中显示错误。我正在考虑参数,我正在发送错误包含Ios 如何在Swift4中通过多参数多部分表单数据上传图像或文件,ios,swift,uiimagepickercontroller,multipartform-data,nsurlsession,Ios,Swift,Uiimagepickercontroller,Multipartform Data,Nsurlsession,通过图像选择器控制器上载图片或文件时出现问题。我通过图像选择器选择了图像,然后传递参数event\u id、booking\u id、memeber\u id和upfile。所有这些值都是Postman中的表单数据格式。如何将这些值发送到API?在postman中,它运行得很好,但在Xcode中显示错误。我正在考虑参数,我正在发送错误包含 func UploadRequest() { let x: Int = defaults.integer(forKey: "ObjectID")
func UploadRequest() {
let x: Int = defaults.integer(forKey: "ObjectID")
user_id = String(x)
auth_key = defaults.value(forKey: "AuthKey") as! String
var request2 = URLRequest(url: uploadDoc! as URL)
request2.httpMethod = "POST"
//define the multipart request type
if (self.img.image == nil) {
return
}
let image_data = UIImageJPEGRepresentation(self.img.image!, 1)
if(image_data == nil) {
return
}
let boundry = generateBoundaryString()
request2.setValue(user_id, forHTTPHeaderField: "user_id")
request2.setValue(auth_key, forHTTPHeaderField: "auth_key")
request2.setValue("multipart/form-data; boundary=\(boundry)", forHTTPHeaderField: "Content-Type")
let param = ["event_id":evId,"booking_id":receivedId,"member_id":memId]
print(param)
request2.httpBody = createBody(params: param, filePathKey: "upfile", imageDatakey: image_data! as NSData, boundary: boundry) as Data
self.jsonDifferentRunDoc(passString: request2)
}
//Generate Boundry String
func generateBoundaryString() -> String {
return "Boundary-\(UUID().uuidString)"
}
func createBody(params: [String: String]?, filePathKey: String, imageDatakey: NSData, boundary: String) -> NSData {
let body = NSMutableData()
if params != nil {
for (key, value) in params! {
body.appendString(boundary)
body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
body.appendString("\(value)\r\n")
}
}
let filename = "jk.jpg"
let mimetype = "image/jpg"
body.appendString(boundary)
body.appendString("Content-Disposition: form-data; name=\"upfile\"; filename=\"\(filename)\"\r\n")
body.appendString("Content-Type: \(mimetype)\r\n\r\n")
body.append(imageDatakey as Data)
body.appendString("\r\n")
body.appendString("--".appending(boundary.appending("--")))
//print("Body = \(body)")
return body
}
运行此函数时显示错误。上传边界时出现语法错误:
lineBreak = "\r\n";
body.appendString("--\(boundary)--\(lineBreak)");
请尝试此操作。显示什么错误?请告诉我错误在API中显示错误。框架错误。