ios - 如何在 Swift 中发送 POST 参数？

Question

这里是一些代码:

var URL: NSURL = NSURL(string: "http://stackoverflow.com")
var request:NSMutableURLRequest = NSMutableURLRequest(URL:URL)
request.HTTPMethod = "POST"
request.HTTPBody = ?????? 
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) 
{
    (response, data, error) in
    println(NSString(data: data, encoding: NSUTF8StringEncoding))
}

如果我想发送 POST 查询 "key"= "value"，我应该在 request.HTTPBody 中写什么？

Answer 1

与在 Objective-C 中一样，HTTPBody 需要一个 NSData 对象:

var bodyData = "key1=value&key2=value&key3=value"
request.HTTPBody = bodyData.dataUsingEncoding(NSUTF8StringEncoding);

您必须自己在字符串中设置值和键。