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菜单管理优化

master
An Yong Shuai 2024-04-13 08:53:56 +08:00
parent 656daa9501
commit 0d955b0425
1 changed files with 14 additions and 33 deletions
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47
muyu-modules/muyu-system/src/main/java/com/muyu/system/service/impl/SysMenuServiceImpl.java
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@ -70,60 +70,41 @@ public class SysMenuServiceImpl extends ServiceImpl<SysMenuMapper, SysMenu> impl
menu.getParams().put("userId", userId); menu.getParams().put("userId", userId);
menuList = menuMapper.selectMenuListByUserId(menu); menuList = menuMapper.selectMenuListByUserId(menu);
} }
/**
* 去重，并获取查询到的菜单parentId 集合
*/
List<SysMenu> list = list(menuList); List<SysMenu> list = list(menuList);
List<Long> collect = menuList.stream().distinct() List<Long> collect = menuList.stream().distinct()
.map(SysMenu::getParentId) .map(SysMenu::getParentId)
.collect(Collectors.toList()); .collect(Collectors.toList());
System.out.println(collect); System.out.println(collect);
/*
*如果没有parentID 集合就返回 菜单表
*/
// if (collect.size()==0){
// return menuList;
// }
/**
* 根据parentID 集合获取 所有父类菜单
*/
List<SysMenu> sysMenus=menuMapper.selectMenuByparentList(collect); List<SysMenu> sysMenus=menuMapper.selectMenuByparentList(collect);
List<SysMenu> finalMenuList = menuList; List<SysMenu> finalMenuList = menuList;
/**
*把所有查到的 父类放入 菜单列表中
*/
sysMenus.forEach(sysMenu -> { sysMenus.forEach(sysMenu -> {
finalMenuList.add(sysMenu); finalMenuList.add(sysMenu);
}); });
/** //菜单列表 去重 防止重复 并在获取所有的parentID 获取更高一级的菜单
* 菜单列表 去重 防止重复 并在获取所有的parentID 获取更高一级的菜单 List<Long> ids = finalMenuList.stream().distinct()
*/
List<Long> collect2 = finalMenuList.stream().distinct()
.map(SysMenu::getParentId) .map(SysMenu::getParentId)
.collect(Collectors.toList()); .collect(Collectors.toList());
/** //再次根据 parentID 查询 菜单 防止遗漏
* 再次根据 parentID 查询 菜单 防止遗漏 List<SysMenu> menus = menuMapper.selectMenuByparentList(ids);
*/ menus.forEach(sysMenu -> {
List<SysMenu> sysMenus1 = menuMapper.selectMenuByparentList(collect2);
sysMenus1.forEach(sysMenu -> {
finalMenuList.add(sysMenu); finalMenuList.add(sysMenu);
}); });
/** //去重 防止重复 ， 并转为菜单列表
* 去重 防止重复 ， 并转为菜单列表 List<SysMenu> sysMenuList = finalMenuList
*/
List<SysMenu> collect1 = finalMenuList
.stream() .stream()
.distinct() .distinct()
.collect(Collectors.toList()); .collect(Collectors.toList());
sysMenuList.addAll(list);
List<SysMenu> collect3 = sysMenuList.stream().distinct().collect(Collectors.toList());
collect1.addAll(list);
List<SysMenu> collect3 = collect1.stream().distinct().collect(Collectors.toList());
return collect3; return collect3;
} }
/**
* 递归查询
* @param menuList
* @return
*/
public List<SysMenu> list(List<SysMenu> menuList){ public List<SysMenu> list(List<SysMenu> menuList){
List<Long> collect = menuList.stream().distinct() List<Long> collect = menuList.stream().distinct()
.map(SysMenu::getMenuId).collect(Collectors.toList()); .map(SysMenu::getMenuId).collect(Collectors.toList());