我的报错
https buffer:{“errcode”:40001,“errmsg”:“invalid credential, access_token is invalid or not latest, hints: [ req_id: EzyZwA09845293 ]”}
2019-01-08 14:29:44.669 [http-nio-80-exec-6] DEBUG com.luyu.iot.util.WechatUtil - user info :{“errcode”:40001,“errmsg”:“invalid credential, access_token is invalid or not latest, hints: [ req_id: EzyZwA09845293 ]”}
看到您之前回答别人的是controller的问题但是我发现我的微信接口url只能配置类似的http://xxxx.xxx.xxx.x/iot/wechat/ 也就是wechat后面多一个“/”才能配置成功
这是我的controller
@Controller
//一会在设置的URL里面就设置上这个路由
@RequestMapping(value = “wechat”, method = { RequestMethod.GET, RequestMethod.POST })
public class WechatController {

private static Logger log = LoggerFactory.getLogger(WechatController.class);

@RequestMapping(method = { RequestMethod.GET })
public void doGet(HttpServletRequest request, HttpServletResponse response) {
    log.debug("weixin get...");
    // 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");

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

}