diff --git a/eladmin-common/src/main/java/me/zhengjie/base/BaseRepository.java b/eladmin-common/src/main/java/me/zhengjie/base/BaseRepository.java
index 6c765921..4f9438bc 100644
--- a/eladmin-common/src/main/java/me/zhengjie/base/BaseRepository.java
+++ b/eladmin-common/src/main/java/me/zhengjie/base/BaseRepository.java
@@ -23,6 +23,7 @@ import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.google.common.collect.Sets;
 import me.zhengjie.db.ElSpecification;
+import me.zhengjie.exception.BadConfigurationException;
 import me.zhengjie.utils.QueryHelp;
 import me.zhengjie.utils.StringUtils;
 import me.zhengjie.utils.WhereFun;
@@ -341,7 +342,12 @@ public class BaseRepository<I extends IService<T>, J extends JpaRepository<T, ID
      * @return
      */
     protected List<T> mpFindAll(Specification<T> spec) {
-        ElSpecification<T> specifications = (ElSpecification<T>) spec;
+        ElSpecification<T> specifications;
+        try {
+            specifications = (ElSpecification<T>) spec;
+        } catch (ClassCastException ex) {
+            throw new BadConfigurationException("使用Mybatis Plus 必须使用 me.zhengjie.db.ElSpecification", ex);
+        }
         final QueryWrapper<T> queryWrapper = specifications.getQueryWrapper();
         return mpService.list(queryWrapper);
     }
diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/JobServiceImpl.java b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/JobServiceImpl.java
index 478a80b5..9b6c7d72 100644
--- a/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/JobServiceImpl.java
+++ b/eladmin-system/src/main/java/me/zhengjie/modules/system/service/impl/JobServiceImpl.java
@@ -57,13 +57,14 @@ public class JobServiceImpl implements JobService {
     @Override
     public Map<String, Object> queryAll(JobQueryCriteria criteria, Pageable pageable) {
         final Specification<Job> jobSpecification = (root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root, criteria, criteriaBuilder);
-        Page<Job> page = jobRepository.findAll(new ElSpecification<Job>(jobSpecification, criteria,Job.class), pageable);
+        Page<Job> page = jobRepository.findAll(new ElSpecification<Job>(jobSpecification, criteria, Job.class), pageable);
         return PageUtil.toPage(page.map(jobMapper::toDto).getContent(), page.getTotalElements());
     }
 
     @Override
     public List<JobDto> queryAll(JobQueryCriteria criteria) {
-        List<Job> list = jobRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root, criteria, criteriaBuilder));
+        final Specification<Job> jobSpecification = (root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root, criteria, criteriaBuilder);
+        List<Job> list = jobRepository.findAll(new ElSpecification<Job>(jobSpecification, criteria, Job.class));
         return jobMapper.toDto(list);
     }