如何在C＃中使用HttpWebRequest类发送文本

Question

我在C＃中具有此功能，每1分钟通过计时器调用一次...

private void timer1_Tick(object sender, EventArgs e)

{
    string strServer = "hhttp://www.mydomain.net/save.php";
    try {
        HttpWebRequest reqFP = (HttpWebRequest)HttpWebRequest.Create(strServer);
        HttpWebResponse rspFP = (HttpWebResponse)reqFP.GetResponse();
        if (rspFP.StatusCode == HttpStatusCode.OK) { // ther is an internet connection
            //send the text stored in 'writeUp' string variable to the url via 'POST' methode
            rspFP.Close(); //is good to open and close the connection every minute
        }
    }
    catch (WebException) {
        //I don't know why to use try/catch... but I just don't want any errors to be poped up...
    }
    writeUp = "";
}

编写此代码以执行下一个步骤：

检查该站点是否存在连接...
如果有一个，那么...将文本从'writeup'字符串变量发送到存储在网站根目录中的'save.php'文件...
使用'POST'方法（而不是'Get'方法）将编写字符串发布到php文件中...
因此我可以通过变量$ _POST ['writeup']接受PHP中的文本
这样我就可以根据需要处理文本了...

更多问题...女巫最好每分钟打开和关闭httprequest ...或在互联网可用的所有时间内保持打开状态...

Answer 1

private void timer1_Tick(object sender, EventArgs e)    
{
    string strServer = "hhttp://www.mydomain.net/save.php";
    try 
    {
        var reqFP = (HttpWebRequest)HttpWebRequest.Create(strServer);

        reqFP.Method = "POST";
        reqFP.ContentType = "application/x-www-form-urlencoded";

        reqFP.ContentLength = writeup.Length;

        /*var rspFP = (HttpWebResponse)reqFP.GetResponse();
        if (rspFP.StatusCode == HttpStatusCode.OK) 
        {*/
            //WRITE STRING TO STREAM HERE
            using (var sw = new StreamWriter(reqFP.GetRequestStream(), Encoding.ASCII))
            {
                sw.Write(writeup);
            }   

            rspFP.Close(); //is good to open and close the connection every minute
        /*}*/       
    }
    catch (WebException) {
        //I don't know why to use try/catch... 
        //but I just don't want any errors to be poped up...
    }
    writeUp = "";
}