[Go]GO语言实战-小程序或公众号接口gin框架验证微信服务器消息签名-开源WEB客服

package router

import (
    "github.com/gin-gonic/gin"
    "github.com/taoshihan1991/imaptool/controller"
)

func InitApiRouter(engine *gin.Engine){
    engine.GET("/micro_program",controller.GetCheckWeixinSign)
}

package controller

import (
    "crypto/sha1"
    "encoding/hex"
    "github.com/gin-gonic/gin"
    "github.com/taoshihan1991/imaptool/config"
    "log"
    "sort"
)

func GetCheckWeixinSign(c *gin.Context){
    token:="xxxxxxxx"//自己填的token
    signature:=c.Query("signature")
    timestamp:=c.Query("timestamp")
    nonce:=c.Query("nonce")
    echostr:=c.Query("echostr")
    //将token、timestamp、nonce三个参数进行字典序排序
    var tempArray  = []string{token, timestamp, nonce}
    sort.Strings(tempArray)
    //将三个参数字符串拼接成一个字符串进行sha1加密
    var sha1String string = ""
    for _, v := range tempArray {
        sha1String += v
    }
    h := sha1.New()
    h.Write([]byte(sha1String))
    sha1String = hex.EncodeToString(h.Sum([]byte("")))
    //获得加密后的字符串可与signature对比
    if sha1String == signature {
        c.Writer.Write([]byte(echostr))
    } else {
        log.Println("微信API验证失败")
    }
}