移除超时的在线用户 优化一些代码风格,增加test校验

src/main/java/cn/iocoder/dashboard/modules/system/job/auth/SysUserSessionTimeoutJob.java

@@ -21,10 +21,7 @@ public class SysUserSessionTimeoutJob implements JobHandler {
 
     @Override
     public String execute(String param) throws Exception {
-        log.info("[execute][执行任务：{}]", "移除超时的在线用户");
-        long timeoutCount = sysUserSessionService.clearSessionTimeout();
-        log.info("[execute][执行任务：{}:{}]", "移除超时的在线用户完成", timeoutCount);
-        return null;
+        return String.valueOf(sysUserSessionService.clearSessionTimeout());
     }
 
 }

src/main/java/cn/iocoder/dashboard/modules/system/service/auth/SysUserSessionService.java

@@ -64,8 +64,6 @@ public interface SysUserSessionService {
      * 移除超时的在线用户
      *
      * @return {@link Long } 移出的超时用户数量
-     * @author Lyon
-     * @date 2021/3/7
      **/
     long clearSessionTimeout();
 }