修改人员是否在线的调用

mec-im/src/main/java/com/ym/controller/LiveRoomController.java

@@ -70,7 +70,7 @@ public class LiveRoomController {
     }
 
     @ApiOperation("查询用户是否在聊天室")
-    @RequestMapping(value = "/checkOnline")
+    @PostMapping(value = "/checkOnline")
     public boolean checkOnline(String userId) {
         return liveRoomService.checkOnline(userId);
     }