和许多第三方服务器接入类似，微信服务器接入同样需要一个加解密的过程。当我们填好配置信息后微信服务器发起一个GET请求到我们在公众平台配置的服务器url地址，微信方将带上signature，timestamp，nonce，echostr四个参数，我们自己服务器通过拼接公众平台配置的token，以及传上来的timestamp，nonce进行SHA1加密后匹配signature，返回ture说明接入成功。(Similar to many third party server access, WeChat server access also requires a encryption and decryption process. When we fill in the configuration information after the WeChat server initiates a GET request to the server URL address in our public platform configuration, WeChat will bring signature, timestamp, nonce, echostr four parameters, our own server by splicing public platform configuration token, and timestamp pass up, nonce SHA1 encryption after matching signature, return ture access success.)