新建com.itheima.stock.security.service.LoginUserDetailService

package com.itheima.stock.security.service;


import com.google.common.base.Strings;
import com.itheima.stock.mapper.SysRoleMapper;
import com.itheima.stock.mapper.SysUserMapperExt;
import com.itheima.stock.pojo.entity.SysPermission;
import com.itheima.stock.pojo.entity.SysRole;
import com.itheima.stock.pojo.entity.SysUser;
import com.itheima.stock.service.PermissionService;
import com.itheima.stock.vo.resp.PermissionRespNodeVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 定义获取用户详情服务Bean
 */
@Service("userDetailsService")
public class LoginUserDetailService implements UserDetailsService {
    @Autowired
    private SysUserMapperExt sysUserMapperExt;
    @Autowired
    private PermissionService permissionService;
    @Autowired
    private SysRoleMapper sysRoleMapper;

    /**
     * 根据用户名获取用户详情:用户名，密码，权限集合等
     *
     * @param username
     * @return
     * @throws UsernameNotFoundException
     */
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //根据用户名查询查询数据库中用户详情
        SysUser dbUser = sysUserMapperExt.findUserByUserName(username);
        if (dbUser == null) {
            throw new UsernameNotFoundException("用户不存在");
        }
        //获取指定用户的权限集合 添加获取侧边栏数据和按钮权限的结合信息
        List<SysPermission> permissions = permissionService.getPermissionByUserId(dbUser.getId());
        List<SysRole> roles = sysRoleMapper.getRoleByUserId(dbUser.getId());
        //获取树状权限菜单数据
        List<PermissionRespNodeVo> menus = permissionService.getTree(permissions, 0l, true);
        //获取菜单按钮集合
        List<String> authBtnPerms = permissions.stream()
                .filter(per -> !Strings.isNullOrEmpty(per.getCode()) && per.getType() == 3)
                .map(per -> per.getCode()).collect(Collectors.toList());
        List<String> ps = new ArrayList<String>();
        //获取security的权限标识
        List<String> pers = permissions.stream()
                .filter(per -> StringUtils.isNotBlank(per.getPerms()))
                .map(per -> per.getPerms())
                .collect(Collectors.toList());
        ps.addAll(pers);
        List<String> rs = roles.stream().map(r -> "ROLE_" + r.getName()).collect(Collectors.toList());
        ps.addAll(rs);
        String[] psArray = ps.toArray(new String[ps.size()]);
        //将用户拥有的权限标识转化为权限对象
        List<GrantedAuthority> authorities = AuthorityUtils.createAuthorityList(psArray);

        return null;
    }
}