Spring security：将4.0迁移到5.0-错误-没有为id“null”映射的PasswordEncoder[已关闭]

Question

这个问题是由打字错误或无法再复制的问题引起的。虽然这里可能有类似的问题，但这个问题的解决方式不太可能对未来的读者有所帮助。

java.lang.IllegalArgumentException: There is no PasswordEncoder mapped for the id "null"
    org.springframework.security.crypto.password.DelegatingPasswordEncoder$UnmappedIdPasswordEncoder.matches(DelegatingPasswordEncoder.java:236)
    org.springframework.security.crypto.password.DelegatingPasswordEncoder.matches(DelegatingPasswordEncoder.java:196)
    org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$LazyPasswordEncoder.matches(WebSecurityConfigurerAdapter.java:593)

我的代码工作正常，现在我已经将Spring Security版本从4.0更改为5.0，但它不起作用

Answer 1

请阅读此处的链接，了解为此需要进行的更新：-

https://spring.io/blog/2017/11/01/spring-security-5-0-0-rc1-released#password-存储格式。

您可能需要为类中的密码编码器添加bean，这将再次取决于您的要求

例如，您可以在配置类中使用NoOpPasswordEncoder，如下所示：-

@Bean
public NoOpPasswordEncoder noopPasswordEncoder(){
    return new NoOpPasswordEncoder();
}

对于基于XML的配置，如下所示：-

<bean id ="passwordEncoder" class = "org.springframework.security.crypto.NoOpPasswordEncoder" factory-method = "getInstance" />

Answer 2

对于基于Java，在代码中进行这些更改并将其更新为

@Autowired
public void configureGlobalSecurity(AuthenticationManagerBuilder auth) throws Exception {
    BCryptPasswordEncoder encoder = passwordEncoder();
    auth.inMemoryAuthentication().withUser("admin").password(encoder.encode("admin")).roles("ADMIN");
}

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

或者，

 @Bean
public static NoOpPasswordEncoder passwordEncoder() {
 return (NoOpPasswordEncoder) NoOpPasswordEncoder.getInstance();
}

对于XML配置，

<bean id ="passwordEncoder" class = "org.springframework.security.crypto.NoOpPasswordEncoder" factory-method = "getInstance" />