java 微信公众号服务器配置token验证

参考：/qq_27185879/article/details/125673815

公众号配置

URL：填写外网可以访问的域名

Token：填写的值要与代码中的一致

依赖：sha1 加密

<dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId></dependency>

验证接口（get请求）

import static cn.hutool.crypto.SecureUtil.sha1;@RequestMapping("/checkSign")public void wechatCheckSign(HttpServletRequest request, HttpServletResponse response) throws IOException {String token = "slj_weixin_token"; //填写自己在微信公众平台中设置的token// 微信加密签名String signature = request.getParameter("signature");// 随机字符串String echostr = request.getParameter("echostr");// 时间戳String timestamp = request.getParameter("timestamp");// 随机数String nonce = request.getParameter("nonce");String[] str = {token, timestamp, nonce };// 字典排序Arrays.sort(str);String bigStr = str[0] + str[1] + str[2];// SHA1加密String digest = sha1(bigStr);// 确认请求来至微信if (digest.equals(signature)) {response.getWriter().print(echostr);}}