/** 加载菜单 */
@PostConstruct
public void cacheMenus() throws Exception {
try {
List<MenuVo> menuList =
DBUtils.jt()
.query("select * from T_MENU order by displayOrder", createRowMapper(MenuVo.class));
// 形成树状关系
Map<String, MenuVo> menuMap = new HashMap<String, MenuVo>();
for (MenuVo menu : menuList) {
menuMap.put(menu.getMenuId(), menu);
}
for (MenuVo menu : menuList) {
String pid = menu.getParentMenuId();
if (!StringUtils.isEmpty(pid)) {
MenuVo pMenu = menuMap.get(pid);
pMenu.addSubMenu(menu);
}
}
for (MenuVo menu : menuList) {
if (!StringUtils.isEmpty(menu.getParentMenuId())) {
menuMap.remove(menu.getMenuId());
}
}
LocalCache.put(CACHE_KEY_MENU_MAP, Collections.unmodifiableMap(menuMap));
logger.info("菜单缓存构建完毕。");
} catch (Exception e) {
logger.error("加载菜单出错", e);
throw e;
}
}
/** 获取菜单，并根据当前登录用户的权限设置进行过滤 */
public MenuVo getMenu(String menuId) throws Exception {
@SuppressWarnings("unchecked")
Map<String, MenuVo> menuMap = (Map<String, MenuVo>) LocalCache.get(CACHE_KEY_MENU_MAP);
MenuVo tempMenu = menuMap.get(menuId);
return filter(tempMenu.clone());
}