微信开发-验证服务器

微信自己开发的第一步要验证自己的服务器，只需写一个空网页，接收微信服务器发过来的字符串，然后验证签名后将字符串原样返回，微信服务器收到这个字符串后即可验证成功。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Diagnostics;

namespace Weixin
{
public partial class Index : System.Web.UI.Page
{
public const String TOKEN = "zhuoteng123";
protected void Page_Load(object sender, EventArgs e)
{
String echoStr = Request["echostr"];

Debug.Write("soupld:"
+ DateTime.Now.ToString("HH-mm-ss")
+ "load page");

if (this.checkSignature())
{
Response.Write(echoStr);
}
}

//验证
private bool checkSignature()
{
string signature = Request["signature"];
string timestamp = Request["timestamp"];
string nonce = Request["nonce"];

string token = TOKEN;
string[] tmpArr = new string[] { token, timestamp, nonce };
Array.Sort(tmpArr);
string tmpStr = string.Join("", tmpArr);
//sha1加密
System.Security.Cryptography.SHA1 sha1 = new System.Security.Cryptography.SHA1CryptoServiceProvider();
byte[] secArr = sha1.ComputeHash(System.Text.Encoding.Default.GetBytes(tmpStr));
tmpStr = BitConverter.ToString(secArr).Replace("-", "").ToLower();

Debug.Write("soupld:"
+ DateTime.Now.ToString("HH-mm-ss")
+ ":signature=" + signature
+ ";timestamp=" + timestamp
+ ";nonce=" + nonce
+ ";");

if (tmpStr == signature)
{
return true;
}
else
{
return false;
}
}
}
}

写好的网页放到服务器上，用IIS配置好网站，注意要把将此页面设置为默认页面，让网站启动后即可接受微信服务器消息。