update

mec-student/src/main/java/com/ym/mec/student/controller/SporadicChargeInfoController.java

@@ -18,9 +18,7 @@ import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
-import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
-
 import java.util.Map;
 
 @RequestMapping("sporadicChargeInfo")