新增：新增系统管理/部门管理/导出功能（引入 Easy Excel 依赖用于导出 Excel，详情可见 README 介绍。另请注意：测试导出功能时，前端需要关闭 mockjs，否则 responseType 会被 mockjs 设置为 ''，导致导出的文件无法打开）

continew-admin-system/src/main/java/top/charles7c/cnadmin/system/model/vo/DeptDetailVO.java

@@ -17,11 +17,14 @@
 package top.charles7c.cnadmin.system.model.vo;
 
 import lombok.Data;
-import lombok.experimental.Accessors;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 
+import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
+import com.alibaba.excel.annotation.ExcelProperty;
+
 import top.charles7c.cnadmin.common.base.BaseDetailVO;
+import top.charles7c.cnadmin.common.config.easyexcel.ExcelBaseEnumConverter;
 import top.charles7c.cnadmin.common.enums.DisEnableStatusEnum;
 
 /**
@@ -31,7 +34,7 @@ import top.charles7c.cnadmin.common.enums.DisEnableStatusEnum;
  * @since 2023/2/1 22:19
  */
 @Data
-@Accessors(chain = true)
+@ExcelIgnoreUnannotated
 @Schema(description = "部门详情信息")
 public class DeptDetailVO extends BaseDetailVO {
 
@@ -41,12 +44,14 @@ public class DeptDetailVO extends BaseDetailVO {
      * 部门 ID
      */
     @Schema(description = "部门 ID")
+    @ExcelProperty(value = "部门ID")
     private Long deptId;
 
     /**
      * 部门名称
      */
     @Schema(description = "部门名称")
+    @ExcelProperty(value = "部门名称")
     private String deptName;
 
     /**
@@ -65,11 +70,13 @@ public class DeptDetailVO extends BaseDetailVO {
      * 描述
      */
     @Schema(description = "描述")
+    @ExcelProperty(value = "描述")
     private String description;
 
     /**
      * 状态（1启用 2禁用）
      */
     @Schema(description = "状态（1启用 2禁用）")
+    @ExcelProperty(value = "状态", converter = ExcelBaseEnumConverter.class)
     private DisEnableStatusEnum status;
 }

continew-admin-system/src/main/java/top/charles7c/cnadmin/system/service/DeptService.java

@@ -18,6 +18,8 @@ package top.charles7c.cnadmin.system.service;
 
 import java.util.List;
 
+import javax.servlet.http.HttpServletResponse;
+
 import cn.hutool.core.lang.tree.Tree;
 
 import top.charles7c.cnadmin.common.base.BaseService;
@@ -64,4 +66,14 @@ public interface DeptService extends BaseService<DeptVO, DeptDetailVO, DeptQuery
      * @return 是否存在
      */
     boolean checkDeptNameExist(String deptName, Long parentId, Long deptId);
+
+    /**
+     * 导出
+     *
+     * @param query
+     *            查询条件
+     * @param response
+     *            响应对象
+     */
+    void export(DeptQuery query, HttpServletResponse response);
 }

continew-admin-system/src/main/java/top/charles7c/cnadmin/system/service/impl/DeptServiceImpl.java

@@ -17,10 +17,13 @@
 package top.charles7c.cnadmin.system.service.impl;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
 import java.util.stream.Collectors;
 
+import javax.servlet.http.HttpServletResponse;
+
 import lombok.RequiredArgsConstructor;
 
 import org.springframework.stereotype.Service;
@@ -37,6 +40,7 @@ import top.charles7c.cnadmin.common.base.BaseDetailVO;
 import top.charles7c.cnadmin.common.base.BaseServiceImpl;
 import top.charles7c.cnadmin.common.base.BaseVO;
 import top.charles7c.cnadmin.common.enums.DisEnableStatusEnum;
+import top.charles7c.cnadmin.common.util.ExcelUtils;
 import top.charles7c.cnadmin.common.util.ExceptionUtils;
 import top.charles7c.cnadmin.common.util.TreeUtils;
 import top.charles7c.cnadmin.common.util.helper.QueryHelper;
@@ -65,13 +69,25 @@ public class DeptServiceImpl extends BaseServiceImpl<DeptMapper, DeptDO, DeptVO,
 
     @Override
     public List<DeptVO> list(DeptQuery query) {
+        List<DeptDO> deptList = this.listDept(query);
+        List<DeptVO> list = BeanUtil.copyToList(deptList, DeptVO.class);
+        list.forEach(this::fill);
+        return list;
+    }
+
+    /**
+     * 查询列表
+     *
+     * @param query
+     *            查询条件
+     * @return 列表信息
+     */
+    private List<DeptDO> listDept(DeptQuery query) {
         QueryWrapper<DeptDO> queryWrapper = QueryHelper.build(query);
         queryWrapper.lambda().orderByAsc(DeptDO::getParentId).orderByAsc(DeptDO::getDeptSort)
             .orderByDesc(DeptDO::getCreateTime);
         List<DeptDO> deptList = baseMapper.selectList(queryWrapper);
-        List<DeptVO> list = BeanUtil.copyToList(deptList, DeptVO.class);
-        list.forEach(this::fill);
-        return list;
+        return CollUtil.isNotEmpty(deptList) ? deptList : Collections.emptyList();
     }
 
     @Override
@@ -170,6 +186,14 @@ public class DeptServiceImpl extends BaseServiceImpl<DeptMapper, DeptDO, DeptVO,
             .eq(DeptDO::getParentId, parentId).ne(deptId != null, DeptDO::getDeptId, deptId));
     }
 
+    @Override
+    public void export(DeptQuery query, HttpServletResponse response) {
+        List<DeptDO> deptList = this.listDept(query);
+        List<DeptDetailVO> list = BeanUtil.copyToList(deptList, DeptDetailVO.class);
+        list.forEach(this::fillDetail);
+        ExcelUtils.export(list, "部门数据", DeptDetailVO.class, response);
+    }
+
     /**
      * 填充数据
      *