修改搜索报错

imcs-admin-boot/imcs-business-biz/src/main/java/com/github/zuihou/business/statisticalAnalysis/impl/ProductLinePerformanceServiceImpl.java

@@ -14,6 +14,7 @@ import com.github.zuihou.database.mybatis.conditions.query.LbqWrapper;
 import com.github.zuihou.injection.annonation.InjectionResult;
 import com.github.zuihou.utils.BeanPlusUtil;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang.StringUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -63,9 +64,9 @@ public class ProductLinePerformanceServiceImpl extends SuperCacheServiceImpl<Pro
             int monthHour = calCalendar.getActualMaximum(Calendar.DATE) * 24;
             params.setMonthHour(monthHour);
         }else{
-            Date searchDate = com.github.zuihou.common.util.DateUtil.stringToDate0(params.getStatisticalDate(),"yyyy-MM");
             Calendar calCalendar = Calendar.getInstance();
-            if(searchDate != null){
+            if(StringUtils.isNotEmpty(params.getStatisticalDate())){
+                Date searchDate = com.github.zuihou.common.util.DateUtil.stringToDate0(params.getStatisticalDate(),"yyyy-MM");
                 calCalendar.setTime(searchDate);
             }
             int monthHour = calCalendar.getActualMaximum(Calendar.DATE) * 24;