package com.javaweb.system.service.impl;
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import java.text.MessageFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.LinkedHashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Set;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import com.javaweb.common.constant.UserConstants;
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import com.javaweb.common.core.domain.Ztree;
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import com.javaweb.common.utils.StringUtils;
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import com.javaweb.system.domain.SysMenu;
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import com.javaweb.system.domain.SysRole;
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import com.javaweb.system.domain.SysUser;
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import com.javaweb.system.mapper.SysMenuMapper;
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import com.javaweb.system.mapper.SysRoleMenuMapper;
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import com.javaweb.system.service.ISysMenuService;
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/**
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* 菜单 业务层处理
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*
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* @author ruoyi
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*/
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@Service
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public class SysMenuServiceImpl implements ISysMenuService
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{
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public static final String PREMISSION_STRING = "perms[\"{0}\"]";
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@Autowired
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private SysMenuMapper menuMapper;
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@Autowired
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private SysRoleMenuMapper roleMenuMapper;
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/**
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* 根据用户查询菜单
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*
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* @param user 用户信息
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* @return 菜单列表
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*/
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@Override
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public List<SysMenu> selectMenusByUser(SysUser user)
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{
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List<SysMenu> menus = new LinkedList<SysMenu>();
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// 管理员显示所有菜单信息
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if (user.isAdmin())
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{
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menus = menuMapper.selectMenuNormalAll();
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}
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else
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{
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menus = menuMapper.selectMenusByUserId(user.getUserId());
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}
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return getChildPerms(menus, 0);
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}
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/**
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* 查询菜单集合
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*
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* @return 所有菜单信息
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*/
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@Override
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public List<SysMenu> selectMenuList(SysMenu menu, Long userId)
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{
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List<SysMenu> menuList = null;
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if (SysUser.isAdmin(userId))
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{
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menuList = menuMapper.selectMenuList(menu);
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}
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else
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{
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menu.getParams().put("userId", userId);
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menuList = menuMapper.selectMenuListByUserId(menu);
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}
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return menuList;
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}
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/**
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* 查询菜单集合
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*
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* @return 所有菜单信息
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*/
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@Override
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public List<SysMenu> selectMenuAll(Long userId)
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{
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List<SysMenu> menuList = null;
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if (SysUser.isAdmin(userId))
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{
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menuList = menuMapper.selectMenuAll();
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}
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else
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{
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menuList = menuMapper.selectMenuAllByUserId(userId);
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}
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return menuList;
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}
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/**
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* 根据用户ID查询权限
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*
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* @param userId 用户ID
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* @return 权限列表
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*/
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@Override
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public Set<String> selectPermsByUserId(Long userId)
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{
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List<String> perms = menuMapper.selectPermsByUserId(userId);
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Set<String> permsSet = new HashSet<>();
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for (String perm : perms)
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{
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if (StringUtils.isNotEmpty(perm))
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{
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permsSet.addAll(Arrays.asList(perm.trim().split(",")));
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}
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}
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return permsSet;
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}
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/**
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* 根据角色ID查询菜单
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*
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* @param role 角色对象
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* @return 菜单列表
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*/
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@Override
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public List<Ztree> roleMenuTreeData(SysRole role, Long userId)
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{
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Long roleId = role.getRoleId();
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List<Ztree> ztrees = new ArrayList<Ztree>();
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List<SysMenu> menuList = selectMenuAll(userId);
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if (StringUtils.isNotNull(roleId))
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{
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List<String> roleMenuList = menuMapper.selectMenuTree(roleId);
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ztrees = initZtree(menuList, roleMenuList, true);
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}
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else
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{
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ztrees = initZtree(menuList, null, true);
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}
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return ztrees;
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}
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/**
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* 查询所有菜单
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*
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* @return 菜单列表
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*/
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@Override
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public List<Ztree> menuTreeData(Long userId)
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{
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List<SysMenu> menuList = selectMenuAll(userId);
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List<Ztree> ztrees = initZtree(menuList);
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return ztrees;
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}
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/**
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* 查询系统所有权限
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*
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* @return 权限列表
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*/
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@Override
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public LinkedHashMap<String, String> selectPermsAll(Long userId)
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{
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LinkedHashMap<String, String> section = new LinkedHashMap<>();
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List<SysMenu> permissions = selectMenuAll(userId);
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if (StringUtils.isNotEmpty(permissions))
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{
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for (SysMenu menu : permissions)
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{
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section.put(menu.getUrl(), MessageFormat.format(PREMISSION_STRING, menu.getPerms()));
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}
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}
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return section;
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}
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/**
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* 对象转菜单树
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*
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* @param menuList 菜单列表
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* @return 树结构列表
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*/
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public List<Ztree> initZtree(List<SysMenu> menuList)
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{
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return initZtree(menuList, null, false);
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}
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/**
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* 对象转菜单树
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*
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* @param menuList 菜单列表
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* @param roleMenuList 角色已存在菜单列表
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* @param permsFlag 是否需要显示权限标识
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* @return 树结构列表
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*/
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public List<Ztree> initZtree(List<SysMenu> menuList, List<String> roleMenuList, boolean permsFlag)
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{
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List<Ztree> ztrees = new ArrayList<Ztree>();
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boolean isCheck = StringUtils.isNotNull(roleMenuList);
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for (SysMenu menu : menuList)
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{
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Ztree ztree = new Ztree();
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ztree.setId(menu.getMenuId());
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ztree.setpId(menu.getParentId());
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ztree.setName(transMenuName(menu, permsFlag));
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ztree.setTitle(menu.getMenuName());
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if (isCheck)
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{
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ztree.setChecked(roleMenuList.contains(menu.getMenuId() + menu.getPerms()));
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}
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ztrees.add(ztree);
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}
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return ztrees;
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}
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public String transMenuName(SysMenu menu, boolean permsFlag)
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{
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StringBuffer sb = new StringBuffer();
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sb.append(menu.getMenuName());
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if (permsFlag)
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{
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sb.append("<font color=\"#888\"> " + menu.getPerms() + "</font>");
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}
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return sb.toString();
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}
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/**
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* 删除菜单管理信息
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*
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* @param menuId 菜单ID
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* @return 结果
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*/
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@Override
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public int deleteMenuById(Long menuId)
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{
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return menuMapper.deleteMenuById(menuId);
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}
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/**
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* 根据菜单ID查询信息
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*
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* @param menuId 菜单ID
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* @return 菜单信息
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*/
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@Override
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public SysMenu selectMenuById(Long menuId)
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{
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return menuMapper.selectMenuById(menuId);
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}
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/**
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* 查询子菜单数量
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*
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* @param parentId 父级菜单ID
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* @return 结果
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*/
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@Override
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public int selectCountMenuByParentId(Long parentId)
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{
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return menuMapper.selectCountMenuByParentId(parentId);
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}
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/**
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* 查询菜单使用数量
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*
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* @param menuId 菜单ID
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* @return 结果
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*/
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@Override
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public int selectCountRoleMenuByMenuId(Long menuId)
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{
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return roleMenuMapper.selectCountRoleMenuByMenuId(menuId);
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}
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/**
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* 新增保存菜单信息
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*
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* @param menu 菜单信息
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* @return 结果
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*/
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@Override
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public int insertMenu(SysMenu menu)
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{
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return menuMapper.insertMenu(menu);
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}
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/**
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* 修改保存菜单信息
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*
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* @param menu 菜单信息
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* @return 结果
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*/
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@Override
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public int updateMenu(SysMenu menu)
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{
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return menuMapper.updateMenu(menu);
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}
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/**
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* 校验菜单名称是否唯一
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*
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* @param menu 菜单信息
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* @return 结果
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*/
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@Override
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public String checkMenuNameUnique(SysMenu menu)
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{
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Long menuId = StringUtils.isNull(menu.getMenuId()) ? -1L : menu.getMenuId();
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SysMenu info = menuMapper.checkMenuNameUnique(menu.getMenuName(), menu.getParentId());
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if (StringUtils.isNotNull(info) && info.getMenuId().longValue() != menuId.longValue())
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{
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return UserConstants.MENU_NAME_NOT_UNIQUE;
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}
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return UserConstants.MENU_NAME_UNIQUE;
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}
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/**
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* 根据父节点的ID获取所有子节点
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*
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* @param list 分类表
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* @param parentId 传入的父节点ID
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* @return String
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*/
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public List<SysMenu> getChildPerms(List<SysMenu> list, int parentId)
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{
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List<SysMenu> returnList = new ArrayList<SysMenu>();
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for (Iterator<SysMenu> iterator = list.iterator(); iterator.hasNext();)
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{
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SysMenu t = (SysMenu) iterator.next();
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// 一、根据传入的某个父节点ID,遍历该父节点的所有子节点
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if (t.getParentId() == parentId)
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{
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recursionFn(list, t);
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returnList.add(t);
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}
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}
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return returnList;
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}
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/**
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* 递归列表
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*
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* @param list
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* @param t
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*/
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private void recursionFn(List<SysMenu> list, SysMenu t)
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{
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// 得到子节点列表
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List<SysMenu> childList = getChildList(list, t);
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t.setChildren(childList);
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for (SysMenu tChild : childList)
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{
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if (hasChild(list, tChild))
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{
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// 判断是否有子节点
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Iterator<SysMenu> it = childList.iterator();
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while (it.hasNext())
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{
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SysMenu n = (SysMenu) it.next();
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recursionFn(list, n);
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}
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}
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}
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}
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/**
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* 得到子节点列表
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*/
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private List<SysMenu> getChildList(List<SysMenu> list, SysMenu t)
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{
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List<SysMenu> tlist = new ArrayList<SysMenu>();
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Iterator<SysMenu> it = list.iterator();
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while (it.hasNext())
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{
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SysMenu n = (SysMenu) it.next();
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if (n.getParentId().longValue() == t.getMenuId().longValue())
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{
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tlist.add(n);
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}
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}
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return tlist;
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}
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/**
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* 判断是否有子节点
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*/
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private boolean hasChild(List<SysMenu> list, SysMenu t)
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{
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return getChildList(list, t).size() > 0 ? true : false;
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}
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}
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