Configure the user name and password after introducing spring security start
@Configuration
public class SecurityConfig3 extends WebSecurityConfigurerAdapter {
@Autowired
// @Lazy
private PasswordEncoder passwordEncoder;
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
//设置登录的用户名和密码
auth.inMemoryAuthentication().withUser("liuyuan")
.password(passwordEncoder.encode("123"))
.roles("admin");
}
@Bean
public PasswordEncoder passwordEncoder(){
return new BCryptPasswordEncoder(10);
}
}
启动项目报错:
┌──->──┐
| securityConfig3 (field private org.springframework.security.crypto.password.PasswordEncoder com.liu.springsecuritylearning.config.SecurityConfig3.passwordEncoder)
└──<-──┘
Action:
Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by setting spring.main.allow-circular-references to true.
Reason analysis: It should be that I injected PasswordEncoder into the container and at the same time I obtained PasswordEncoder from the container. There may be a container that does not know whether it is injected into my custom or the security comes with it.
Solution: Delay assembly of my passwordEncoder, wait until the container is initialized, and then assemble it when I use it, and lazy loading can be realized. Just remove the comment above