src/main/java/com/gxuwz/jyd/security/UserDetailsServiceImpl.java

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package com.gxuwz.jyd.security;

import com.gxuwz.jyd.pojo.SysRole;
import com.gxuwz.jyd.pojo.SysUser;
import com.gxuwz.jyd.service.SysRoleService;
import com.gxuwz.jyd.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
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;

@Service("userDetailsService")
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private SysUserService userService;
    @Autowired
    private SysRoleService roleService;

    @Override
    public UserDetails loadUserByUsername(String userId) throws UsernameNotFoundException {
        System.out.println("前台用户名："+userId);
        SysUser user = userService.loginUser(userId);


        // 根据用户名查询对应角色
        List<SysRole> roleList = roleService.queryRoleByUserId(userId);
        List<SimpleGrantedAuthority> list = new ArrayList<SimpleGrantedAuthority>();
        for (SysRole role : roleList){
            SimpleGrantedAuthority grantedAuthority = new SimpleGrantedAuthority(role.getRoleId());
            list.add(grantedAuthority);
        }

        // 创建UserDetails类型的实现类对象，并返回该对象
        UserDetails userDetails = null;
        if (user !=null){
            userDetails = new User(user.getUserId(),user.getPassword(),list);
        }

        return userDetails;
    }
}