微信公众号开发基本配置URL、Token、EncodingAESKey

说明：我的是springboot项目

1. pom.xml添加依赖

        <!-- https://mvnrepository.com/artifact/org.dom4j/dom4j 微信基本设置token认证-->
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>

        <dependency>
            <groupId>com.thoughtworks.xstream</groupId>
            <artifactId>xstream</artifactId>
            <version>1.4.9</version>
        </dependency>

2.创建Controller

package com.ziteng.controller;

import com.ziteng.util.SignUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
  * @Author 徐本锡
  * @Description //TODO
  * @Date 2019/10/16  
  * @Param 
  * @return 
  **/
@RestController
@RequestMapping("/index")
public class WechatIndexController {
    private static final Logger LOGGER = LoggerFactory.getLogger(WechatIndexController.class);

    @RequestMapping(method = RequestMethod.GET)
    public void get(HttpServletRequest request, HttpServletResponse response) {
        // 微信加密签名，signature结合了开发者填写的token参数和请求中的timestamp参数、nonce参数。
        String signature = request.getParameter("signature");
        // 时间戳
        String timestamp = request.getParameter("timestamp");
        // 随机数
        String nonce = request.getParameter("nonce");
        // 随机字符串
        String echostr = request.getParameter("echostr");

        PrintWriter out = null;
        try {
            out = response.getWriter();
            // 通过检验signature对请求进行校验，若校验成功则原样返回echostr，否则接入失败
            if (SignUtil.checkSignature(signature, timestamp, nonce)) {
                out.print(echostr);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            out.close();
            out = null;
        }
    }

}

 3.签名工具类

package com.ziteng.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;

/**
 * @ClassName SignUtil
 * @Author xbx
 * @Date 2019/11/8 13:50
 * @Version 1.0
 **/

public class SignUtil {
    //token可以自己进行定义，必须为英文或者是数字，长度为3-32字符，这个token要跟服务器配置中的token一致
    private static String token = "aaa123";

    /**
     * 校验签名
     * @param signature 签名
     * @param timestamp 时间戳
     * @param nonce 随机数
     * @return 布尔值
     */
    public static boolean checkSignature(String signature,String timestamp,String nonce){
        String checktext = null;
        if (null != signature) {
            //对ToKen,timestamp,nonce 按字典排序
            String[] paramArr = new String[]{token,timestamp,nonce};
            Arrays.sort(paramArr);
            //将排序后的结果拼成一个字符串
            String content = paramArr[0].concat(paramArr[1]).concat(paramArr[2]);

            try {
                MessageDigest md = MessageDigest.getInstance("SHA-1");
                //对接后的字符串进行sha1加密
                byte[] digest = md.digest(content.toString().getBytes());
                checktext = byteToStr(digest);
            } catch (NoSuchAlgorithmException e){
                e.printStackTrace();
            }
        }
        //将加密后的字符串与signature进行对比
        return checktext !=null ? checktext.equals(signature.toUpperCase()) : false;
    }

    /**
     * 将字节数组转化我16进制字符串
     * @param byteArrays 字符数组
     * @return 字符串
     */
    private static String byteToStr(byte[] byteArrays){
        String str = "";
        for (int i = 0; i < byteArrays.length; i++) {
            str += byteToHexStr(byteArrays[i]);
        }
        return str;
    }

    /**
     *  将字节转化为十六进制字符串
     * @param myByte 字节
     * @return 字符串
     */
    private static String byteToHexStr(byte myByte) {
        char[] Digit = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
        char[] tampArr = new char[2];
        tampArr[0] = Digit[(myByte >>> 4) & 0X0F];
        tampArr[1] = Digit[myByte & 0X0F];
        String str = new String(tampArr);
        return str;
    }
}

4.打包放服务器启动

端口需要设置为80

5.基本设置提交

1.URL是  http://+服务器的域名+请求接口（这里是/index）

2.token是SignUtil工具类中设置的token

3.EncodingAESKey随机生成即可

提交保存成功。