package com.mes.menu.service.impl;
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import cn.hutool.json.JSONUtil;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.mes.menu.entity.SysMenu;
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import com.mes.menu.mapper.SysMenuMapper;
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import com.mes.menu.service.SysMenuService;
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import com.mes.userinfo.entity.SysUser;
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import com.mes.userinfo.mapper.SysUserMapper;
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import com.mes.userinfo.service.SysUserService;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Collectors;
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/**
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* <p>
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* 菜单表 服务实现类
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* </p>
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*
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* @author zhoush
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* @since 2024-04-11
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*/
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@Service
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@Slf4j
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public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> implements SysMenuService {
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@Autowired
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SysUserService sysUserService;
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@Override
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public List<SysMenu> getMenuTree() {
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//todo:需要先获取用户的角色，角色下的菜单权限，拿到菜单id获取所有菜单
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List<SysMenu> menuList = this.baseMapper.selectList(null);
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return create(menuList);
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}
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@Override
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public List<String> getAuthorityInfo(String userName) {
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SysUser sysUser = sysUserService.listByUserName(userName);
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// 获取权限信息
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String authorityInfo = sysUserService.getUserAuthorityInfo(sysUser.getId());// ROLE_admin,ROLE_normal,sys:user:list,....
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String[] authorityInfoArray = StringUtils.tokenizeToStringArray(authorityInfo, ",");
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}
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/**
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* 将数据库中查询出来的list集合传入此方法即可获得排成树形结构的list集合
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*
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* @param lists
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* @return
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*/
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public List<SysMenu> create(List<SysMenu> lists) {
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List<SysMenu> deptTreeList = lists.stream()
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.filter(item -> item.getParentId() == 0)
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.map(item -> {
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item.setChildren(getChildren(item, lists));
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return item;
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}).collect(Collectors.toList());
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return deptTreeList;
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}
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/**
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* 此方法将被递归调用
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*
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* @param menu
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* @param menus
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* @return
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*/
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private List<SysMenu> getChildren(SysMenu menu, List<SysMenu> menus) {
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List<SysMenu> res = menus.stream()
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.filter(item -> item.getParentId().equals(menu.getId()))
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.map(item -> {
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item.setChildren(getChildren(item, menus));
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return item;
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}).collect(Collectors.toList());
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log.info("菜单树:{}", JSONUtil.toJsonStr(res));
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return res;
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}
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@Autowired
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SysUserMapper sysUserMapper;
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@Override
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public List<SysMenuDto> getCurrentUserNav() {
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String username = (String) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
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SysUser sysUser = sysUserService.getByUsername(username);
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List<Long> menuIds = sysUserMapper.getNavMenuIds(sysUser.getId());
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List<SysMenu> menus = this.listByIds(menuIds);
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// 转树状结构
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List<SysMenu> menuTree = buildTreeMenu(menus);
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// 实体转DTO
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return convert(menuTree);
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}
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@Override
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public List<SysMenu> tree() {
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// 获取所有菜单信息
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List<SysMenu> sysMenus = this.list(new QueryWrapper<SysMenu>().orderByAsc("orderNum"));
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// 转成树状结构
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return buildTreeMenu(sysMenus);
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}
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private List<SysMenuDto> convert(List<SysMenu> menuTree) {
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List<SysMenuDto> menuDtos = new ArrayList<>();
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menuTree.forEach(m -> {
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SysMenuDto dto = new SysMenuDto();
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dto.setId(m.getId());
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dto.setName(m.getPerms());
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dto.setTitle(m.getName());
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dto.setComponent(m.getComponent());
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dto.setPath(m.getPath());
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if (m.getChildren().size() > 0) {
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// 子节点调用当前方法进行再次转换
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dto.setChildren(convert(m.getChildren()));
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}
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menuDtos.add(dto);
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});
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return menuDtos;
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}
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private List<SysMenu> buildTreeMenu(List<SysMenu> menus) {
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List<SysMenu> finalMenus = new ArrayList<>();
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// 先各自寻找到各自的孩子
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for (SysMenu menu : menus) {
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for (SysMenu e : menus) {
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if (menu.getId() == e.getParentId()) {
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menu.getChildren().add(e);
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}
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}
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// 提取出父节点
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if (menu.getParentId() == 0L) {
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finalMenus.add(menu);
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}
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}
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System.out.println(JSONUtil.toJsonStr(finalMenus));
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return finalMenus;
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}
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}
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