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src/main/java/com/rj/service/impl/QweiDepartmentServiceImpl.java

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+package com.rj.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.rj.entity.QweiDepartment;
+import com.rj.mapper.QweiDepartmentMapper;
+import com.rj.service.IQweiDepartmentService;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+@Service
+public class QweiDepartmentServiceImpl extends ServiceImpl<QweiDepartmentMapper, QweiDepartment>
+        implements IQweiDepartmentService {
+
+    @Override
+    public Map<String, Object> add(QweiDepartment entity) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            if (entity.getDeptId() == null) {
+                result.put("success", false);
+                result.put("message", "deptId不能为空");
+                return result;
+            }
+            if (entity.getDeptName() == null || entity.getDeptName().trim().isEmpty()) {
+                result.put("success", false);
+                result.put("message", "deptName不能为空");
+                return result;
+            }
+            LambdaQueryWrapper<QweiDepartment> dup = new LambdaQueryWrapper<QweiDepartment>()
+                    .eq(QweiDepartment::getDeptId, entity.getDeptId());
+            if (this.count(dup) > 0) {
+                result.put("success", false);
+                result.put("message", "deptId已存在");
+                return result;
+            }
+
+            entity.setId(UUID.randomUUID().toString());
+            if (entity.getIsDeleted() == null) {
+                entity.setIsDeleted(0);
+            }
+            LocalDateTime now = LocalDateTime.now();
+            entity.setCreatedAt(now);
+            entity.setUpdatedAt(now);
+            boolean ok = this.save(entity);
+            result.put("success", ok);
+            result.put("message", ok ? "添加成功" : "添加失败");
+            if (ok) {
+                result.put("data", entity);
+            }
+            return result;
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("message", "添加异常：" + e.getMessage());
+            return result;
+        }
+    }
+
+    @Override
+    public Map<String, Object> update(QweiDepartment entity) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            if (entity.getId() == null || entity.getId().trim().isEmpty()) {
+                result.put("success", false);
+                result.put("message", "id不能为空");
+                return result;
+            }
+            entity.setUpdatedAt(LocalDateTime.now());
+            boolean ok = this.updateById(entity);
+            result.put("success", ok);
+            result.put("message", ok ? "更新成功" : "更新失败");
+            if (ok) {
+                result.put("data", this.getById(entity.getId()));
+            }
+            return result;
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("message", "更新异常：" + e.getMessage());
+            return result;
+        }
+    }
+
+    @Override
+    public Map<String, Object> deleteById(String id) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            boolean ok = this.removeById(id);
+            result.put("success", ok);
+            result.put("message", ok ? "删除成功" : "删除失败");
+            return result;
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("message", "删除异常：" + e.getMessage());
+            return result;
+        }
+    }
+
+    @Override
+    public Map<String, Object> pageQuery(Integer current, Integer size, Long deptId, String deptName, Long parentDeptId) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            if (current == null || current < 1) {
+                current = 1;
+            }
+            if (size == null || size < 1) {
+                size = 10;
+            }
+
+            Page<QweiDepartment> page = new Page<>(current, size);
+            LambdaQueryWrapper<QweiDepartment> q = new LambdaQueryWrapper<>();
+            if (deptId != null) {
+                q.eq(QweiDepartment::getDeptId, deptId);
+            }
+            if (deptName != null && !deptName.trim().isEmpty()) {
+                q.like(QweiDepartment::getDeptName, deptName.trim());
+            }
+            if (parentDeptId != null) {
+                q.eq(QweiDepartment::getParentDeptId, parentDeptId);
+            }
+            q.orderByAsc(QweiDepartment::getOrderNum).orderByDesc(QweiDepartment::getUpdatedAt);
+
+            Page<QweiDepartment> data = this.page(page, q);
+            result.put("success", true);
+            result.put("message", "查询成功");
+            result.put("data", data.getRecords());
+            result.put("total", data.getTotal());
+            result.put("current", data.getCurrent());
+            result.put("size", data.getSize());
+            result.put("pages", data.getPages());
+            return result;
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("message", "查询异常：" + e.getMessage());
+            return result;
+        }
+    }
+}
+