Java tutorial
/** * Copyright © 2012-2013 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); */ package com.green.modules.sys.utils; import java.util.List; import java.util.Map; import org.apache.commons.lang3.StringUtils; import org.apache.shiro.SecurityUtils; import org.apache.shiro.UnavailableSecurityManagerException; import org.apache.shiro.session.InvalidSessionException; import org.apache.shiro.subject.Subject; import org.hibernate.criterion.DetachedCriteria; import org.hibernate.criterion.Order; import org.hibernate.criterion.Restrictions; import org.hibernate.sql.JoinType; import com.google.common.collect.Maps; import com.green.common.service.BaseService; import com.green.common.utils.SpringContextHolder; import com.green.modules.sys.dao.AreaDao; import com.green.modules.sys.dao.MenuDao; import com.green.modules.sys.dao.OfficeDao; import com.green.modules.sys.dao.RoleDao; import com.green.modules.sys.dao.UserDao; import com.green.modules.sys.entity.Area; import com.green.modules.sys.entity.Menu; import com.green.modules.sys.entity.Office; import com.green.modules.sys.entity.Role; import com.green.modules.sys.entity.User; import com.green.modules.sys.security.SystemAuthorizingRealm.Principal; /** * * @author ThinkGem * @version 2013-5-29 */ public class UserUtils extends BaseService { private static UserDao userDao = SpringContextHolder.getBean(UserDao.class); private static RoleDao roleDao = SpringContextHolder.getBean(RoleDao.class); private static MenuDao menuDao = SpringContextHolder.getBean(MenuDao.class); private static AreaDao areaDao = SpringContextHolder.getBean(AreaDao.class); private static OfficeDao officeDao = SpringContextHolder.getBean(OfficeDao.class); public static final String CACHE_USER = "user"; public static final String CACHE_ROLE_LIST = "roleList"; public static final String CACHE_MENU_LIST = "menuList"; public static final String CACHE_AREA_LIST = "areaList"; public static final String CACHE_OFFICE_LIST = "officeList"; public static User getUser() { User user = (User) getCache(CACHE_USER); if (user == null) { try { Subject subject = SecurityUtils.getSubject(); Principal principal = (Principal) subject.getPrincipal(); if (principal != null) { user = userDao.get(principal.getId()); // Hibernate.initialize(user.getRoleList()); putCache(CACHE_USER, user); } } catch (UnavailableSecurityManagerException e) { } catch (InvalidSessionException e) { } } if (user == null) { user = new User(); try { SecurityUtils.getSubject().logout(); } catch (UnavailableSecurityManagerException e) { } catch (InvalidSessionException e) { } } return user; } public static User getUser(boolean isRefresh) { if (isRefresh) { removeCache(CACHE_USER); } return getUser(); } public static List<Role> getRoleList() { @SuppressWarnings("unchecked") List<Role> list = (List<Role>) getCache(CACHE_ROLE_LIST); if (list == null) { User user = getUser(); DetachedCriteria dc = roleDao.createDetachedCriteria(); dc.createAlias("office", "office"); dc.createAlias("userList", "userList", JoinType.LEFT_OUTER_JOIN); dc.add(dataScopeFilter(user, "office", "userList")); dc.add(Restrictions.eq(Role.FIELD_DEL_FLAG, Role.DEL_FLAG_NORMAL)); dc.addOrder(Order.asc("office.code")).addOrder(Order.asc("name")); list = roleDao.find(dc); putCache(CACHE_ROLE_LIST, list); } return list; } public static List<Menu> getMenuList() { @SuppressWarnings("unchecked") List<Menu> menuList = (List<Menu>) getCache(CACHE_MENU_LIST); if (menuList == null) { User user = getUser(); if (user.isAdmin()) { menuList = menuDao.findAllList(); } else { menuList = menuDao.findByUserId(user.getId()); } putCache(CACHE_MENU_LIST, menuList); } return menuList; } public static List<Area> getAreaList() { @SuppressWarnings("unchecked") List<Area> areaList = (List<Area>) getCache(CACHE_AREA_LIST); if (areaList == null) { // User user = getUser(); // if (user.isAdmin()){ areaList = areaDao.findAllList(); // }else{ // areaList = areaDao.findAllChild(user.getArea().getId(), "%,"+user.getArea().getId()+",%"); // } putCache(CACHE_AREA_LIST, areaList); } return areaList; } public static List<Office> getOfficeList() { @SuppressWarnings("unchecked") List<Office> officeList = (List<Office>) getCache(CACHE_OFFICE_LIST); if (officeList == null) { User user = getUser(); // if (user.isAdmin()){ // officeList = officeDao.findAllList(); // }else{ // officeList = officeDao.findAllChild(user.getOffice().getId(), "%,"+user.getOffice().getId()+",%"); // } DetachedCriteria dc = officeDao.createDetachedCriteria(); dc.add(dataScopeFilter(user, dc.getAlias(), "")); dc.add(Restrictions.eq("delFlag", Office.DEL_FLAG_NORMAL)); dc.addOrder(Order.asc("code")); officeList = officeDao.find(dc); putCache(CACHE_OFFICE_LIST, officeList); } return officeList; } public static User getUserById(String id) { if (StringUtils.isNotBlank(id)) { return userDao.get(id); } else { return null; } } // ============== User Cache ============== public static Object getCache(String key) { return getCache(key, null); } public static Object getCache(String key, Object defaultValue) { Object obj = getCacheMap().get(key); return obj == null ? defaultValue : obj; } public static void putCache(String key, Object value) { getCacheMap().put(key, value); } public static void removeCache(String key) { getCacheMap().remove(key); } public static Map<String, Object> getCacheMap() { Map<String, Object> map = Maps.newHashMap(); try { Subject subject = SecurityUtils.getSubject(); Principal principal = (Principal) subject.getPrincipal(); return principal != null ? principal.getCacheMap() : map; } catch (UnavailableSecurityManagerException e) { } catch (InvalidSessionException e) { } return map; } }