您需要将delegatingpasswordencoder添加到项目配置文件中。delegatingpasswordencoder充当一个passwordencoder，当我们必须从一组实现中进行选择时，我们使用它：

@Configuration
public class ProjectConfig extends WebSecurityConfigurerAdapter {       

  @Bean
  public PasswordEncoder passwordEncoder() {
      Map<String, PasswordEncoder> encoders = new HashMap<>();  

    Pbkdf2PasswordEncoder bcryprPe = new Pbkdf2PasswordEncoder("salt");       
    bcryprPe.setAlgorithm(
       Pbkdf2PasswordEncoder.SecretKeyFactoryAlgorithm.PBKDF2WithHmacSHA512);
    encoders.put("pbkdf2", pbkdf2Pe);
    // add other PasswordEncoder here: 
    encoders.put("scrypt", new SCryptPasswordEncoder());
      return new DelegatingPasswordEncoder("pbkdf2", encoders);
  }
}

具有

return new DelegatingPasswordEncoder("pbkdf2", encoders);

我们对springsecurity说：“使用'pbkdf2'作为默认密码编码器”。
如果提供的哈希是{scrypt}12345，delegatingpasswordencoder将委托给scryptpasswordencoder，如果没有前缀，应用程序将使用默认前缀。

我终于得到了我想要的。我创建了一个passwordencoder的实现，灵感来自https://github.com/lathspell/java_test/blob/master/java_test_openldap/src/main/java/ldapsha512passwordencoder.java
在 WebSecurityConfig.java ```
@Bean
public PasswordEncoder passwordEncoder() {
Map<String, PasswordEncoder> encoders = new HashMap<>();
encoders.put("SSHA-512", new Hmac512PasswordEncoder("salt"));
encoders.put("bcrypt", new BCryptPasswordEncoder());
return new DelegatingPasswordEncoder("SSHA-512", encoders);
}

在 `Hmac512PasswordEncoder.java` ```
public class Hmac512PasswordEncoder implements PasswordEncoder {

private static final String SSHA512_PREFIX = "{SSHA-512}";
private static final String HMAC_SHA512 = "HmacSHA512";

private final String salt;

public Hmac512PasswordEncoder(String salt) {
    if (salt == null) {
        throw new IllegalArgumentException("salt cannot be null");
    }
    this.salt = salt;
}

public String encode(CharSequence rawPassword) {
    String result = null;

    try {
        Mac sha512Hmac = Mac.getInstance(HMAC_SHA512);
        final byte[] byteKey = Utf8.encode(salt);
        SecretKeySpec keySpec = new SecretKeySpec(byteKey, HMAC_SHA512);
        sha512Hmac.init(keySpec);
        byte[] macData = sha512Hmac.doFinal(Utf8.encode(rawPassword.toString()));

        result = SSHA512_PREFIX + Base64.getEncoder().encodeToString(macData);
        //result = bytesToHex(macData);
    } catch (InvalidKeyException | NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    return result;
}

public boolean matches(CharSequence rawPassword, String encodedPassword) {
    if (rawPassword == null || encodedPassword == null) {
        return false;
    }

    String encodedRawPass = encode(rawPassword);

    return MessageDigest.isEqual(Utf8.encode(encodedRawPass), Utf8.encode(encodedPassword));
}
}