1：引入jar

ruoyi-system/src/main/java/com/ruoyi/opt/service/impl/ProcessInfoServiceImpl.java

@@ -4,6 +4,7 @@ import java.util.List;
 import java.util.Map;
 
 import com.alibaba.fastjson.JSON;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.ruoyi.common.core.domain.AjaxResult;
 import com.ruoyi.common.request.CheckInformBo;
 import com.ruoyi.common.request.PayInfomBo;