如何从Spring Security获得与Ldap一起运行的Spring Boot执行器LdapHealthIndicator？

Question

我正在使用spring Security开发一个spring Boot2.3应用程序。通过spring security针对广告进行身份验证和授权。所以我使用spring-security-ldap和下面的代码。

public class SecurityConfiguration extends WebSecurityConfigurerAdapter  {
...
    public AuthenticationProvider adAuthenticationProvider() {

        ActiveDirectoryLdapAuthenticationProvider adProvider =
            new ActiveDirectoryLdapAuthenticationProvider(ldapDomain, ldapUrl);
        adProvider.setSearchFilter(ldapSearchFilter);

        adProvider.setAuthoritiesMapper(authorities -> {
            Collection<GrantedAuthority> gaCollection = new ArrayList<>();
            for (GrantedAuthority authority : authorities) {
                if ("admin".equals(authority.getAuthority())) {
                    gaCollection.add(new SimpleGrantedAuthority(Role.ADMIN));
                }
            }
            return gaCollection;
        });
        return adProvider;
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {

        auth.authenticationProvider(adAuthenticationProvider());
        auth.eraseCredentials(false);
    }

}

相关的依赖关系应该是：

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
...
    </dependencyManagement>

    <dependencies>
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.tomcat</groupId>
                    <artifactId>tomcat-juli</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.tomcat</groupId>
                    <artifactId>tomcat-jdbc</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-ldap</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- End Spring -->
...
    </dependencies>

这个很管用。

CONDITIONS EVALUATION REPORT (only LDAP lines)

positive matches:
   LdapAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.ldap.core.ContextSource' (OnClassCondition)

   LdapAutoConfiguration#ldapContextSource matched:
      - @ConditionalOnMissingBean (types: org.springframework.ldap.core.support.LdapContextSource; SearchStrategy: all) did not find any beans (OnBeanCondition)

   LdapAutoConfiguration#ldapTemplate matched:
      - @ConditionalOnMissingBean (types: org.springframework.ldap.core.LdapOperations; SearchStrategy: all) did not find any beans (OnBeanCondition)

   LdapHealthContributorAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.ldap.core.LdapOperations' (OnClassCondition)
      - @ConditionalOnEnabledHealthIndicator management.health.ldap.enabled is true (OnEnabledHealthIndicatorCondition)
      - @ConditionalOnBean (types: org.springframework.ldap.core.LdapOperations; SearchStrategy: all) found bean 'ldapTemplate' (OnBeanCondition)

   LdapHealthContributorAutoConfiguration#ldapHealthContributor matched:
      - @ConditionalOnMissingBean (names: ldapHealthIndicator,ldapHealthContributor; SearchStrategy: all) did not find any beans (OnBeanCondition)

negative matches:
   EmbeddedLdapAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.unboundid.ldap.listener.InMemoryDirectoryServer' (OnClassCondition)

   LdapRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.ldap.repository.LdapRepository' (OnClassCondition)

o.s.b.actuate.ldap.LdapHealthIndicator   : LDAP health check failed
org.springframework.ldap.CommunicationException: localhost:389; nested exception is 
javax.naming.CommunicationException: localhost:389 
[Root exception is java.net.ConnectException: Connection refused: connect]

Answer 1

可能还有其他问题；但是，主要问题似乎是POM中缺少spring-ldap-core依赖项：

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

包括它将把它放在类路径上。结合正确的属性，Spring Boot的LDAP自动配置将会使用。

此外，参考文档声明属性为spring.ldap.urls，因此我认为应该改为该属性。