［iOS swift］Get方式向服务器请求数据

//使用get的方式向服务器请求数据

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var mytext: UITextField!
    @IBOutlet weak var outText: UITextView!
    var na:NSString = ""
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func ClickToConnect(sender: AnyObject) {
        //先将文本框内的字符赋给一个变量
        na = mytext.text!
        //url填入服务器的地址
        NSURLConnection.sendAsynchronousRequest(NSURLRequest(URL: NSURL(string: "http://localhost:8080/MyServer/index.jsp?name=\(na)")!), queue: NSOperationQueue()) { (resp:NSURLResponse?, data:NSData?, error:NSError?) in

            //完成之前的操作之后要找到主线程，要对UI在主线程进行修改
            dispatch_sync(dispatch_get_main_queue(), {
                self.outText.text = NSString(data: data!, encoding: NSUTF8StringEncoding) as! String
            })

        }


    }

}

服务器端建立个jsp文件，代码如下

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>

<%
String str = request.getParameter("name");
if(str != ""){
out.print("Hello "+str);
}else{
out.print("No args");
}
%>