diff --git a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/mapper/TestDemoMapper.java b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/mapper/TestDemoMapper.java
index bd94b1ce6..97183a65b 100644
--- a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/mapper/TestDemoMapper.java
+++ b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/mapper/TestDemoMapper.java
@@ -4,14 +4,14 @@ import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.core.toolkit.Constants;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import org.apache.poi.ss.formula.functions.T;
+import org.apache.ibatis.annotations.Param;
 import org.dromara.common.mybatis.annotation.DataColumn;
 import org.dromara.common.mybatis.annotation.DataPermission;
 import org.dromara.common.mybatis.core.mapper.BaseMapperPlus;
 import org.dromara.demo.domain.TestDemo;
 import org.dromara.demo.domain.vo.TestDemoVo;
-import org.apache.ibatis.annotations.Param;
 
+import java.io.Serializable;
 import java.util.Collection;
 import java.util.List;
 
@@ -48,12 +48,13 @@ public interface TestDemoMapper extends BaseMapperPlus<TestDemo, TestDemoVo> {
         @DataColumn(key = "deptName", value = "dept_id"),
         @DataColumn(key = "userName", value = "user_id")
     })
-    int updateById(@Param(Constants.ENTITY) TestDemo entity);
+    List<TestDemo> selectBatchIds(@Param(Constants.COLL) Collection<? extends Serializable> idList);
 
     @Override
     @DataPermission({
         @DataColumn(key = "deptName", value = "dept_id"),
         @DataColumn(key = "userName", value = "user_id")
     })
-    int deleteByIds(@Param(Constants.COLL) Collection<?> idList);
+    int updateById(@Param(Constants.ENTITY) TestDemo entity);
+
 }
diff --git a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/TestDemoServiceImpl.java b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/TestDemoServiceImpl.java
index 86b39c2ae..3cfde3a2d 100644
--- a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/TestDemoServiceImpl.java
+++ b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/TestDemoServiceImpl.java
@@ -3,6 +3,8 @@ package org.dromara.demo.service.impl;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import lombok.RequiredArgsConstructor;
+import org.dromara.common.core.exception.ServiceException;
 import org.dromara.common.core.utils.MapstructUtils;
 import org.dromara.common.core.utils.StringUtils;
 import org.dromara.common.mybatis.core.page.PageQuery;
@@ -12,7 +14,6 @@ import org.dromara.demo.domain.bo.TestDemoBo;
 import org.dromara.demo.domain.vo.TestDemoVo;
 import org.dromara.demo.mapper.TestDemoMapper;
 import org.dromara.demo.service.ITestDemoService;
-import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
 import java.util.Collection;
@@ -99,7 +100,11 @@ public class TestDemoServiceImpl implements ITestDemoService {
     @Override
     public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
         if (isValid) {
-            //TODO 做一些业务上的校验,判断是否需要校验
+            // 做一些业务上的校验,判断是否需要校验
+            List<TestDemo> list = baseMapper.selectBatchIds(ids);
+            if (list.size() != ids.size()) {
+                throw new ServiceException("您没有删除权限!");
+            }
         }
         return baseMapper.deleteByIds(ids) > 0;
     }