通过登录人userId获取对应角色 再获取对应角色下的权限菜单（用户角色关联表，角色菜单关联表）1，构建递归获取父节点方法 （因为角色菜单关联表中保存的只有菜单的叶子节点 所以要递归获取父节点） private void getUserMenus(HashMap
     
       parentAndChildren, SysMenu sysMenu) {        if (!parentAndChildren.containsKey(sysMenu.getRowId())) {            parentAndChildren.put(sysMenu.getRowId(), sysMenu);        }        if (!parentAndChildren.containsKey(sysMenu.getParentId())) {            SysMenu p = sysMenuMapper.find(sysMenu.getParentId());            if (p != null) {                getUserMenus(parentAndChildren, p);            }        }    }2，递归获取子节点private void getTreeStructure(SysMenuDto root, List
      
        orgs) {        for (SysMenu org : orgs) {            if (org.getParentId().equals(root.getId())) {                SysMenuDto s = SysMenuDto.convertSysMenuEntity(org);                getTreeStructure(s, orgs);                if (root.getChildrens() == null) {                    root.setChildrens(new ArrayList<>());                }                root.getChildrens().add(s);            }        }    }3，构建树形数据结构 public List
       
         getSysMenuTreeDataByAdmin(String userId,String did) {        List
        
          list = new ArrayList<>();        //查询所有的菜单列表        List
         
           sysMenuList = sysRoleMapper.findListVisible();        //查询所有的菜单编码列表        List
          
            sysMenuIdList = sysRoleMapper.findListId(); //获取收藏的菜单 List
           
             sysUserFavoriteMenuList = sysUserFavoriteMenuMapper.getSysUserFavoriteMenu(userId, did); //遍历判断是否是收藏的 for(SysMenu sysMenu : sysMenuList){ SysUserFavoriteMenu sysUserFavoriteMenu = sysUserFavoriteMenuMapper.getFavoriteMenu(userId,did,sysMenu.getRowId()); if(sysUserFavoriteMenu != null){ //是否收藏标志设置为收藏 sysMenu.setIsFavorite("1"); }else{ sysMenu.setIsFavorite("0"); } } for(SysUserFavoriteMenu sysUserFavoriteMenu : sysUserFavoriteMenuList){ //判断收藏的菜单在所有的菜单中是否存在 不存在就把这个用户收藏的菜单移除 if(!sysMenuIdList.contains(sysUserFavoriteMenu.getMenuId())){ sysUserFavoriteMenuMapper.deleteFavoriteMenu(sysUserFavoriteMenu.getMenuId()); } } //获取该经销商默认设置的系统菜单版本 String verdion=null; //获取顶级菜单 List
            
              topMenuList = sysRoleMapper.selectTopMenu(verdion); if (null == topMenuList) { return null; } for (SysMenu menu : topMenuList) { SysMenuDto s = SysMenuDto.convertSysMenuEntity(menu); getTreeStructure(s, sysMenuList); list.add(s); } //排序 list.sort((SysMenuDto s1,SysMenuDto s2) -> s1.getSort() >= s2.getSort() ? 1 : -1); logger.info("获取最终菜单:{}", JsonUtil.obj2String(list)); return list; }