ios 在 Swift3 中发送 JSON POST 请求
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Sending JSON POST request in Swift3
提问by Vah.Sah
In my app i'm trying to make http post request with json data. The following json must be transferred to api
在我的应用程序中，我正在尝试使用 json 数据发出 http post 请求。以下json必须转入api
{
"Password":"123456",
"Email":"[email protected]"
}
Here is my code for this task
这是我执行此任务的代码
let dict = ["Email": "[email protected]", "Password":"123456"] as [String: Any]
if let jsonData = try? JSONSerialization.data(withJSONObject: dict, options: []) {
let url = NSURL(string: "http://xxxxxxxxx.net/api/Login")!
let request = NSMutableURLRequest(url: url as URL)
request.httpMethod = "POST"
request.httpBody = jsonData
let task = URLSession.shared.dataTask(with: request as URLRequest){ data,response,error in
if error != nil{
print(error?.localizedDescription)
return
}
do {
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
if let parseJSON = json {
let resultValue:String = parseJSON["success"] as! String;
print("result: \(resultValue)")
print(parseJSON)
}
} catch let error as NSError {
print(error)
}
}
task.resume()
}
I'm getting the following error
我收到以下错误
Error Domain=NSCocoaErrorDomain Code=3840 "No value." UserInfo={NSDebugDescription=No value.}
The response data is empty. What I'm doing wrong, or i have missed something in my code?
响应数据为空。我做错了什么，或者我在我的代码中遗漏了什么？
回答by Sahil Mahajan
Try two things:
尝试两件事：
First :
第一的 ：
jsonData = try? JSONSerialization.data(withJSONObject: dict, options: .prettyPrinted)
then add logs if your data is converted into JSON. Convert your data into String and print the value.
如果您的数据转换为 JSON，则添加日志。将您的数据转换为字符串并打印值。
Also add
还添加
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
before httpBody. Sometimes we have to tell server in our request that we are posting JSON data.
之前httpBody。有时我们必须在我们的请求中告诉服务器我们正在发布 JSON 数据。
Hope this will help you!!
希望能帮到你！！
Happy Coding!
快乐编码！
