Java Spring Security - User.withDefaultPasswordEncoder() is deprecated?

问题

I am very new to java spring security, and was following the Spring.io tutorial guide. As part of this, I edited the WebSecurityConfig class as required:

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
      http
        .authorizeRequests()
            .antMatchers("/", "/home").permitAll()
            .anyRequest().authenticated()
            .and()
        .formLogin()
            .loginPage("/login")
            .permitAll()
            .and()
        .logout()
            .permitAll();
    }

    @Bean
    @Override
    public UserDetailsService userDetailsService() {
        UserDetails user =
         User.withDefaultPasswordEncoder()
            .username("user")
            .password("password")
            .roles("USER")
            .build();

    return new InMemoryUserDetailsManager(user);
    }
}

Within the userDetailService() method, it uses withDefaultPasswordEncoder() which is now deprecated as seen in the docs: withDefaultPasswordEncoder()

Unfortunately, I have not been able to find an alternative to this, to complete this tutorial without using the deprecated method. Would somebody be able to provide an alternative for this if possible?

Thanks!

note: I have attached a couple of screen shots of my error, as well as my gradle file

回答1:

EDIT: deleted old answer, misunderstood the question. Here's the new one:

User.withDefaultPasswordEncoder() can still be used for demos, you don't have to worry if that's what you're doing - even if it's deprecated - but in production, you shouldn't have a plain text password in your source code.

What you should be doing instead of using your current userDetailsService() method is the following:

private static final String ENCODED_PASSWORD = "$2a$10$AIUufK8g6EFhBcumRRV2L.AQNz3Bjp7oDQVFiO5JJMBFZQ6x2/R/2";


@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.inMemoryAuthentication()
        .passwordEncoder(passwordEncoder())
        .withUser("user").password(ENCODED_PASSWORD).roles("USER");
}


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

Where ENCODED_PASSWORD is secret123 encoded with BCrypt. You can also encode it programmatically like so: passwordEncoder().encode("secret123").

That way, even if you push your code to a public repository, people won't know the password because ENCODED_PASSWORD only shows the encoded version of the password and not the plain text version, but because you know that $2a$10$AIUufK8g6EFhBcumRRV2L.AQNz3Bjp7oDQVFiO5JJMBFZQ6x2/R/2 is actually the encoded password of the string secret123 whereas others don't, your in-memory user with the credentials user:secret123 won't be compromised.

Note that I'm using leaving it in a static variable for the sake of the example.

回答2:

Using the passwordEncoder.encode() would be like this

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

   @Override
   protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.inMemoryAuthentication()
    .passwordEncoder(passwordEncoder())
    .withUser("user")
    .password(passwordEncoder().encode("miClave"))
    .roles("USER");
   }

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

}

来源：https://stackoverflow.com/questions/49847791/java-spring-security-user-withdefaultpasswordencoder-is-deprecated