请高手帮忙把一小段JAVA代码翻译成C#，在线等

Question

package com.easecom.tomcatscan;
import java.io.*;
import java.net.*;
public class postdemo {
  public postdemo() {
  }
  public static void main(String[] args) {
    try {
      URL url = new URL("http://61.156.3.58:8081/SendSmsService"); //实际url
      URLConnection connection = url.openConnection();
      connection.setDoOutput(true);
      OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "GB2312");
      out.write("COMMANDID=01&CORPID=40068887807& CPPW=asdljsdofipoia123456al9u098-09&SOURCEADDRFLAG=1&SOURCEADDR=053188596036&PHONE=13156160733&SMSID=0000000000000000001&CONTENT=smstest!&LICENSE=-SjqmmWnqU6nNUNaNUrNUUNUWNU7.0;XTaoonoabUm]oWbUmbaUooLooLooLooooooaoUooUUmUbrnWaS");
      out.flush();
      out.close();
      DataInputStream in = new DataInputStream(connection.getInputStream());
      String inline = "";
      while ( (inline = in.readLine()) != null) 
{
        System.out.println(inline);
      }
      in.close();
    }
    catch (IOException ex2) {
      System.out.println(" exe IOException:" + ex2.toString());
    }
  }
}

Answer 1

httpwebrequest httpwebrespone 获取网页数据

Answer 2

用httpwebrequest httpwebresponse streamreader就行了吧

Answer 3

namespace com.easecom.tomcatscan
{
    using System.Net;
    using System;
    using System.IO;
    using System.Text;
    public class postdemo
    {        public postdemo()
        {
        }        public static void Main(String[] args)
        {
            try
            {
                Uri url = new Uri("http://61.156.3.58:8081/SendSmsService"); //实际url
                HttpWebRequest httpwebrequest = (HttpWebRequest)WebRequest.Create(url);
                HttpWebResponse httpwebresponse = (HttpWebResponse)httpwebrequest.GetResponse();
                Stream stream = httpwebresponse.GetResponseStream();
                StreamReader streamreader = new StreamReader(stream, Encoding.GetEncoding("GB2312"));
                string str = streamreader.ReadToEnd();
                stream.Close();
                httpwebresponse.Close();
                Console.WriteLine(str);
            }
            catch (IOException ex2)
            {
                Console.WriteLine(" exe IOException:" + ex2.ToString());
            }
        }
    }
}

Answer 4

翻译的有点问题 
  OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "GB2312");
  out.write("COMMANDID=01&CORPID=40068887807& CPPW=asdljsdofipoia123456al9u098-09&SOURCEADDRFLAG=1&SOURCEADDR=053188596036&PHONE=13156160733&SMSID=0000000000000000001&CONTENT=smstest!&LICENSE=-SjqmmWnqU6nNUNaNUrNUUNUWNU7.0;XTaoonoabUm]oWbUmbaUooLooLooLooooooaoUooUUmUbrnWaS");完全没体现出来

Answer 5

var buffer = Encoding.Default.GetBytes(
    "COMMANDID=01&CORPID=40068887807&CPPW=asdljsdofipoia123456al9u098-09&" +
    "SOURCEADDRFLAG=1&SOURCEADDR=053188596036&PHONE=13156160733&" +
    "SMSID=0000000000000000001&CONTENT=smstest!&" +
    "LICENSE=-SjqmmWnqU6nNUNaNUrNUUNUWNU7.0;XTaoonoabUm]oWbUmbaUooLooLooLooooooaoUooUUmUbrnWaS");var request = HttpWebRequest.Create(
    "http://61.156.3.58:8081/SendSmsService");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = buffer.Length;var requestStream = request.GetRequestStream();
requestStream.Write(buffer, 0, buffer.Length);
requestStream.Close();var response = request.GetResponse();
var responseStream = response.GetResponseStream();
string responseText;
using (var streamReader = new StreamReader(responseStream, Encoding.Default))
{
    responseText = streamReader.ReadToEnd();
}
Console.WriteLine(responseText);

Answer 6

发短信（联通)
ri url = new Uri("http://61.156.3.58:8081/SendSmsService"); //实际url
                HttpWebRequest httpwebrequest = (HttpWebRequest)WebRequest.Create(url);
                HttpWebResponse httpwebresponse = (HttpWebResponse)httpwebrequest.GetResponse();
                Stream stream = httpwebresponse.GetResponseStream();
                StreamWriter streamwriter = new StreamWriter(stream, Encoding.GetEncoding("GB2312"));
                streamwriter.Write("COMMANDID=01&CORPID=40068887807& CPPW=asdljsdofipoia123456al9u098-09&SOURCEADDRFLAG=1&SOURCEADDR=053188596036&PHONE=13156160733&SMSID=0000000000000000001&CONTENT=smstest!&LICENSE=-SjqmmWnqU6nNUNaNUrNUUNUWNU7.0;XTaoonoabUm]oWbUmbaUooLooLooLooooooaoUooUUmUbrnWaS");
                streamwriter.Flush();
                streamwriter.Close();
                stream.Close();
                httpwebresponse.Close();收短信：
Uri url = new Uri("http://61.156.3.58/RecvSms800"); //实际url
                HttpWebRequest httpwebrequest = (HttpWebRequest)WebRequest.Create(url);
                HttpWebResponse httpwebresponse = (HttpWebResponse)httpwebrequest.GetResponse();
                Stream stream = httpwebresponse.GetResponseStream();
                StreamWriter streamwriter = new StreamWriter(stream, Encoding.GetEncoding("GB2312"));
                streamwriter.Write("COMMANDID=01&CORPID=40068887807&CPPW=passwordaftermd5&RECVMSGID=");
                streamwriter.Flush();
                streamwriter.Close();                StreamReader streamreader = new StreamReader(stream, Encoding.GetEncoding("GB2312"));
                string str = streamreader.ReadToEnd();
                streamreader.Close();   //????????                stream.Close();
                httpwebresponse.Close();
                Console.WriteLine(str);