feat(oa): 新增供应商信息管理功能

- 新增供应商信息实体类OaSupplier及对应VO、BO类- 新增供应商信息Service接口与实现类
- 新增供应商信息Controller控制器
- 新增供应商信息Mapper接口与XML映射文件- 在项目进度步骤中添加供应商相关字段（supplierId、requirementFile等）- 完善供应商信息的增删改查及分页查询功能
- 支持供应商信息导出Excel功能

ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaSupplierService.java

@@ -0,0 +1,49 @@
+package com.ruoyi.oa.service;
+
+import com.ruoyi.oa.domain.OaSupplier;
+import com.ruoyi.oa.domain.vo.OaSupplierVo;
+import com.ruoyi.oa.domain.bo.OaSupplierBo;
+import com.ruoyi.common.core.page.TableDataInfo;
+import com.ruoyi.common.core.domain.PageQuery;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * 供应商信息Service接口
+ *
+ * @author ruoyi
+ * @date 2025-11-11
+ */
+public interface IOaSupplierService {
+
+    /**
+     * 查询供应商信息
+     */
+    OaSupplierVo queryById(Long supplierId);
+
+    /**
+     * 查询供应商信息列表
+     */
+    TableDataInfo<OaSupplierVo> queryPageList(OaSupplierBo bo, PageQuery pageQuery);
+
+    /**
+     * 查询供应商信息列表
+     */
+    List<OaSupplierVo> queryList(OaSupplierBo bo);
+
+    /**
+     * 新增供应商信息
+     */
+    Boolean insertByBo(OaSupplierBo bo);
+
+    /**
+     * 修改供应商信息
+     */
+    Boolean updateByBo(OaSupplierBo bo);
+
+    /**
+     * 校验并批量删除供应商信息信息
+     */
+    Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
+}

ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaSupplierServiceImpl.java

@@ -0,0 +1,116 @@
+package com.ruoyi.oa.service.impl;
+
+import cn.hutool.core.bean.BeanUtil;
+import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.common.core.page.TableDataInfo;
+import com.ruoyi.common.core.domain.PageQuery;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import com.ruoyi.oa.domain.bo.OaSupplierBo;
+import com.ruoyi.oa.domain.vo.OaSupplierVo;
+import com.ruoyi.oa.domain.OaSupplier;
+import com.ruoyi.oa.mapper.OaSupplierMapper;
+import com.ruoyi.oa.service.IOaSupplierService;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Collection;
+
+/**
+ * 供应商信息Service业务层处理
+ *
+ * @author ruoyi
+ * @date 2025-11-11
+ */
+@RequiredArgsConstructor
+@Service
+public class OaSupplierServiceImpl implements IOaSupplierService {
+
+    private final OaSupplierMapper baseMapper;
+
+    /**
+     * 查询供应商信息
+     */
+    @Override
+    public OaSupplierVo queryById(Long supplierId){
+        return baseMapper.selectVoById(supplierId);
+    }
+
+    /**
+     * 查询供应商信息列表
+     */
+    @Override
+    public TableDataInfo<OaSupplierVo> queryPageList(OaSupplierBo bo, PageQuery pageQuery) {
+        LambdaQueryWrapper<OaSupplier> lqw = buildQueryWrapper(bo);
+        Page<OaSupplierVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
+        return TableDataInfo.build(result);
+    }
+
+    /**
+     * 查询供应商信息列表
+     */
+    @Override
+    public List<OaSupplierVo> queryList(OaSupplierBo bo) {
+        LambdaQueryWrapper<OaSupplier> lqw = buildQueryWrapper(bo);
+        return baseMapper.selectVoList(lqw);
+    }
+
+    private LambdaQueryWrapper<OaSupplier> buildQueryWrapper(OaSupplierBo bo) {
+        Map<String, Object> params = bo.getParams();
+        LambdaQueryWrapper<OaSupplier> lqw = Wrappers.lambdaQuery();
+        lqw.like(StringUtils.isNotBlank(bo.getSupplierName()), OaSupplier::getSupplierName, bo.getSupplierName());
+        lqw.eq(StringUtils.isNotBlank(bo.getContactPerson()), OaSupplier::getContactPerson, bo.getContactPerson());
+        lqw.eq(StringUtils.isNotBlank(bo.getContactPhone()), OaSupplier::getContactPhone, bo.getContactPhone());
+        lqw.eq(StringUtils.isNotBlank(bo.getContactEmail()), OaSupplier::getContactEmail, bo.getContactEmail());
+        lqw.eq(StringUtils.isNotBlank(bo.getCompanyAddress()), OaSupplier::getCompanyAddress, bo.getCompanyAddress());
+        lqw.eq(StringUtils.isNotBlank(bo.getSupplierType()), OaSupplier::getSupplierType, bo.getSupplierType());
+        lqw.eq(bo.getStatus() != null, OaSupplier::getStatus, bo.getStatus());
+        lqw.orderByDesc(OaSupplier::getCreateTime);
+        return lqw;
+    }
+
+    /**
+     * 新增供应商信息
+     */
+    @Override
+    public Boolean insertByBo(OaSupplierBo bo) {
+        OaSupplier add = BeanUtil.toBean(bo, OaSupplier.class);
+        validEntityBeforeSave(add);
+        boolean flag = baseMapper.insert(add) > 0;
+        if (flag) {
+            bo.setSupplierId(add.getSupplierId());
+        }
+        return flag;
+    }
+
+    /**
+     * 修改供应商信息
+     */
+    @Override
+    public Boolean updateByBo(OaSupplierBo bo) {
+        OaSupplier update = BeanUtil.toBean(bo, OaSupplier.class);
+        validEntityBeforeSave(update);
+        return baseMapper.updateById(update) > 0;
+    }
+
+    /**
+     * 保存前的数据校验
+     */
+    private void validEntityBeforeSave(OaSupplier entity){
+        //TODO 做一些数据校验,如唯一约束
+    }
+
+    /**
+     * 批量删除供应商信息
+     */
+    @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
+        }
+        return baseMapper.deleteBatchIds(ids) > 0;
+    }
+}