然后事件中添加如下代码，如在login按钮点击事件中：

@IBAction func login(sender: AnyObject){
        
        var request = HTTPTask()

        let params: Dictionary<String,AnyObject> = ["method": "loginByForm","u":"login","p":"2222"]
        request.POST("http://ip:port/webapp/wa",parameters: params,success: {(response: HTTPResponse) in
        //访问成功在此写逻辑
        println("info is \(response.text())")
    },failure: {(error: NSError,response: HTTPResponse?) in
        //访问失败
    })
    }