判断参数不能为空

amos-boot-module/amos-boot-module-biz/amos-boot-module-ccs-biz/src/main/java/com/yeejoin/amos/boot/module/ccs/biz/controller/FireStationInfoController.java

 package com.yeejoin.amos.boot.module.ccs.biz.controller;
 
 import cn.hutool.core.date.DatePattern;
+import cn.hutool.core.util.StrUtil;
 import com.yeejoin.amos.boot.biz.common.controller.BaseController;
 import com.yeejoin.amos.boot.module.ccs.api.dto.FireStationInfoDto;
 import com.yeejoin.amos.boot.module.ccs.api.enums.StationOrderByTypeEnum;
@@ -13,6 +14,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 import org.typroject.tyboot.core.foundation.enumeration.UserType;
 import org.typroject.tyboot.core.restful.doc.TycloudOperation;
+import org.typroject.tyboot.core.restful.exception.instance.BadRequest;
 import org.typroject.tyboot.core.restful.utils.ResponseHelper;
 import org.typroject.tyboot.core.restful.utils.ResponseModel;
 
@@ -111,6 +113,9 @@ public class FireStationInfoController extends BaseController {
     @ApiOperation(httpMethod = "GET", value = "根据换流站code统计消防车", notes = "根据换流站code统计消防车")
     @GetMapping(value = "/getCarInfoByStationCode")
     public ResponseModel<List<CarInfoVO>> getCarInfoByStationCode(@ApiParam(value = "换流站编号") @RequestParam(required = true) String stationCode) {
+        if (StrUtil.isEmpty(stationCode)) {
+            throw new BadRequest("换流站编号不能为空");
+        }
         return ResponseHelper.buildResponse(fireStationInfoServiceImpl.getCarInfoByStationCode(stationCode));
     }
 }