使用 swift 发布 json

Question

我想向服务器发布一个 json。 json看起来像这样

{
   "user": {
       "email": "email",
       "password": "pass"
   }
}

这是我到目前为止所得到的，它不起作用。我有如何创建一个 json 对象以及如何发布它的问题。先感谢您。

    let myUrl = NSURL(string:"https://dev.jaloo.us/api/sessions.json")
    let postString:NSString = "email=\(username)&password =\(password)"
    let postData:NSData = postString.dataUsingEncoding(NSUTF8StringEncoding)!
    let request = NSMutableURLRequest (URL:myUrl!)
    request.HTTPMethod = "POST"
    request.HTTPBody = postData
    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")
    var urlData: NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: &responseError)

Answer 1

使用 NSJSONSerialization 从您的参数对象创建数据，您将能够按照您想要的方式进行操作。

let postObject = [
    "user": [
        "email": "email",
        "password": "password"
    ]
]

let data = try! NSJSONSerialization.dataWithJSONObject(postObject, options: NSJSONWritingOptions.PrettyPrinted)
let request = NSMutableURLRequest (URL:myUrl!)
request.HTTPMethod = "POST"
request.HTTPBody = data