springboot创建用户

好的，针对您的问题，我可以给出以下步骤：

1. 在Spring Boot项目中添加Spring Security依赖
2. 创建一个User类，实现Spring Security的UserDetails接口，并重写其中的方法
3. 创建一个UserService类，实现Spring Security的UserDetailsService接口，并重写其中的方法
4. 在SecurityConfig类中配置用户认证和授权信息

下面是一个简单的示例代码：

1. 添加Spring Security依赖

在pom.xml文件中添加以下依赖：

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

2. 创建User类

public class User implements UserDetails {

    private String username;
    private String password;
    private List<GrantedAuthority> authorities;

    public User(String username, String password, List<GrantedAuthority> authorities) {
        this.username = username;
        this.password = password;
        this.authorities = authorities;
    }

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

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public String getUsername() {
        return username;
    }

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

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

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

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

3. 创建UserService类

@Service
public class UserService implements UserDetailsService {

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // 根据用户名查询用户信息
        User user = userRepository.findByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException("用户不存在");
        }
        // 返回用户信息
        return user;
    }
}

4. 配置SecurityConfig类

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserService userService;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userService);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/admin/**").hasRole("ADMIN")
                .antMatchers("/user/**").hasRole("USER")
                .anyRequest().authenticated()
                .and()
                .formLogin()
                .and()
                .logout().logoutSuccessUrl("/");
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

以上代码实现了一个简单的用户认证和授权功能，具体实现可以根据自己的需求进行调整。