给出一个Spring boot 集成 LDAP 支持 SSL 实例程序

以下是一个Spring Boot集成LDAP支持SSL的示例程序：

1. 首先，确保你已经在你的Spring Boot项目中添加了LDAP和SSL依赖，可以在pom.xml文件中添加以下依赖：

<dependency>
    <groupId>org.springframework.ldap</groupId>
    <artifactId>spring-ldap-core</artifactId>
    <version>2.3.3.RELEASE</version>
</dependency>

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-ldap</artifactId>
    <version>5.6.1</version>
</dependency>

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-config</artifactId>
    <version>5.6.1</version>
</dependency>

<dependency>
    <groupId>javax.net.ssl</groupId>
    <artifactId>ssl-context</artifactId>
    <version>1.0.0</version>
</dependency>

2. 创建一个LdapContextSource bean并使用SSL连接：

@Configuration
public class LdapConfig {

    @Value("${ldap.url}")
    private String ldapUrl;

    @Value("${ldap.userDn}")
    private String userDn;

    @Value("${ldap.password}")
    private String password;

    @Bean
    public LdapContextSource contextSource() {
        LdapContextSource contextSource = new LdapContextSource();
        contextSource.setUrl(ldapUrl);
        contextSource.setUserDn(userDn);
        contextSource.setPassword(password);

        // 使用SSL连接
        DefaultTlsDirContextAuthenticationStrategy authStrategy = new DefaultTlsDirContextAuthenticationStrategy();
        contextSource.setAuthenticationStrategy(authStrategy);
        contextSource.setContextSource(buildContextSource());
        return contextSource;
    }

    private LdapContextSource buildContextSource() {
        LdapContextSource contextSource = new LdapContextSource();
        contextSource.setUrl(ldapUrl);
        contextSource.setUserDn(userDn);
        contextSource.setPassword(password);

        // 配置SSL连接
        contextSource.setBaseEnvironmentProperties(Collections.unmodifiableMap(Collections.singletonMap("java.naming.ldap.factory.socket", SslSocketFactory.class.getName())));

        return contextSource;
    }
}

3. 创建一个LdapAuthenticationProvider bean：

@Configuration
public class LdapSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private LdapContextSource contextSource;

    @Value("${ldap.groupSearchBase}")
    private String groupSearchBase;

    @Value("${ldap.groupSearchFilter}")
    private String groupSearchFilter;

    @Value("${ldap.userSearchBase}")
    private String userSearchBase;

    @Value("${ldap.userSearchFilter}")
    private String userSearchFilter;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests().anyRequest().authenticated().and().formLogin().and().httpBasic();
    }

    @Override
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(ldapAuthenticationProvider());
    }

    @Bean
    public LdapAuthenticationProvider ldapAuthenticationProvider() {
        BindAuthenticator bindAuthenticator = new BindAuthenticator(contextSource);
        bindAuthenticator.setUserSearch(new FilterBasedLdapUserSearch(userSearchBase, userSearchFilter, contextSource));
        bindAuthenticator.afterPropertiesSet();

        LdapAuthoritiesPopulator authoritiesPopulator = new DefaultLdapAuthoritiesPopulator(contextSource, groupSearchBase);
        authoritiesPopulator.setGroupSearchFilter(groupSearchFilter);

        LdapAuthentication