perf：请求时将通过getCurrentUserName()方法返回的对象检验用户是否非法

springboot-platform/src/main/java/com/tiesheng/platform/config/ding/PlatformDingConfig.java

@@ -104,7 +104,7 @@ public class PlatformDingConfig {
      * @return accessToken
      * @see <a href="https://open.dingtalk.com/document/orgapp-server/obtain-orgapp-token" />
      */
-    public String getAccessToken(String service) {
+    public synchronized String getAccessToken(String service) {
         DingConfigBean dingConfigBean = getConfigBean(service);
         String accessToken = TsCacheService.of().get(CACHE_ACCESS_TOKEN + dingConfigBean.getAppKey(), -1);
         if (!StrUtil.isEmpty(accessToken)) {