Question

我正在对Swift中的Web服务器进行简单的HTTP Post调用，并试图通过Dictionary传递几个参数，但服务器似乎没有收到它们，我在这里缺少什么？我可以在PHP，Perl等中做到这一点，但还没有想到在Swift中传递POST参数。感谢。

var ret: NSData
var responseStr: NSString

var urlString = server + page
var url:NSURL = NSURL(string: urlString)!     // Creating URL
var request = NSMutableURLRequest(URL: url)   // Creating Http Request
request.HTTPMethod = "POST"

// these params don't seem to be recognized
let params = [
    "projectid": "1234", "userid": "somename", "password": "pw"
] as Dictionary<String, String>

var err: NSError?
let requestBody = NSJSONSerialization.dataWithJSONObject(params, options: nil, error: &err)
request.HTTPBody = requestBody

var response: AutoreleasingUnsafeMutablePointer<NSURLResponse?> = nil
var error: NSErrorPointer? = nil

Answer 1

服务器端应用程序通常需要一个值为Content-Type的{{1}}标头来识别JSON格式的请求正文。所以在发出请求之前添加它：

application/json

另一种解决方案是使用像Just这样的库。您的要求是：

request.addValue("application/json", forHTTPHeaderField:"Content-Type")

Swift HTTP Post：为什么这些参数不被识别？

1 个答案: