update 优化 sse 登录校验 避免大量报错

ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/controller/SseController.java

@@ -30,7 +30,9 @@ public class SseController implements DisposableBean {
      */
     @GetMapping(value = "${sse.path}", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
     public SseEmitter connect() {
-        StpUtil.checkLogin();
+        if (!StpUtil.isLogin()) {
+            return null;
+        }
         String tokenValue = StpUtil.getTokenValue();
         Long userId = LoginHelper.getUserId();
         return sseEmitterManager.connect(userId, tokenValue);