Maven 依赖

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>

三个配置类 SelfUserDetails

@Data
@Accessors(chain = true)
public class SelfUserDetails implements UserDetails {
    private Set<? extends GrantedAuthority> authorities;//角色配置类
    private Account account;//用户实体

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return this.authorities;
    }


    @Override
    public String getPassword() {
        return this.account.getPassword();
    }

    @Override
    public String getUsername() {
        return this.account.getName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
    public void select(String name){

        Account name1 = new Account().selectOne(new MyWrapper().eq("name", name));
        this.account=name1;
    }
}

SelfUserDetailsService 是UserDetailService实现类

@Component
public class SelfUserDetailsService implements UserDetailsService {

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        SelfUserDetails selfUserDetails = new SelfUserDetails();
        selfUserDetails.select(username);
        if(selfUserDetails.getAccount()==null){
            //仍需要细化处理
            throw new UsernameNotFoundException("该用户不存在");
        }
        Set authoritiesSet = new HashSet();
        // 模拟从数据库中获取用户角色
        GrantedAuthority authority = new SimpleGrantedAuthority("ROLE_ADMIN");

        authoritiesSet.add(authority);
    selfUserDetails.setAuthorities(authoritiesSet);
    return selfUserDetails;
    }
}

SpringSecurityConfig是WebSecurityConfigurerAdapter实现类

@Configuration
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
   SelfUserDetailsService selfUserDetailsService;
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        // 加入自定义的安全认证
//        auth.authenticationProvider(provider);
        auth.userDetailsService(selfUserDetailsService).passwordEncoder(new BCryptPasswordEncoder());
    }

}

要注意的是密码存入数据库前需要用BCryptPasswordEncoder加密
列如： 

MyWrapper<Account> wrapper=new MyWrapper<Account>();
      Account account = accountService.selectList(wrapper.eq("name", "chenli12")).get(0);
      System.out.println(account);
         BCryptPasswordEncoder bCryptPasswordEncoder=new BCryptPasswordEncoder();
         account.setPassword(bCryptPasswordEncoder.encode(account.getPassword()));
      account.update(wrapper.ge("password",account.getPassword()));

如果不用加密的话 在configure函数中就可以写成

auth.userDetailsService(selfUserDetailsService)就行了