用swift中的dictionary和utf-8进行post请求

Question

我需要发出一个post请求，在post请求的正文中发送一个需要用utf-8编码的字典，我在下面尝试了这个，但它给出了一个错误：

let DicObject: NSMutableDictionary = NSMutableDictionary()
DicObject.setValue("cf", forKey: "a")
DicObject.setValue("", forKey: "scs")
DicObject.setValue("Uploads/" + nameOfFile, forKey:"p")

当我尝试制作时

request.httpMethod = "POST"
//  request.httpBody = jsonObject as Data
request.addValue("Content-Type", forHTTPHeaderField: "application/x-www-form-urlencoded; charset=utf-8")

它不起作用，有人知道如何将jsonObject编码转换为utf-8 吗

谢谢。

Answer 1

您可以使用JSONSerialization将jsonObject转换为data

if let data = try? JSONSerialization.data(withJSONObject: jsonObject, options: .prettyPrinted)
request.httpBody = data
}

Answer 2

试试这个，

let jsonData: NSData
do {
jsonData = try JSONSerialization.data(withJSONObject: DicObject, options: JSONSerialization.WritingOptions()) as NSData
let jsonString = NSString(data: jsonData as Data, encoding: String.Encoding.utf8.rawValue)! as String
print("json string = (jsonString)")
print("json jsonData = (jsonData)")
} catch _ {
print ("JSON Failure")
}

谢谢！

Answer 3

您可以使用此Alamofire方法

mydict = [:] // Your parameters here
if let theJSONData = try? JSONSerialization.data(
withJSONObject: mydict,
options: []) {
let theJSONText = String(data: theJSONData,
encoding: .ascii)
multipartFormData.append((theJSONText?.data(using: .utf8)!)!, withName: "bulkData")
}