Spring data mongodb，如何设置SSL？

到目前为止，我还没有找到关于该主题的良好解释/文档。

我在用

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-mongodb</artifactId>
    <version>1.9.5.RELEASE</version>
</dependency>

我的代码如下所示：

   @Bean
   public MongoClientFactoryBean mongo() {
      MongoClientFactoryBean mongo = new MongoClientFactoryBean();
      mongo.setHost(host);
      mongo.setPort(port);
      mongo.setCredentials(new MongoCredential[]{MongoCredential.createCredential(username, database, password.toCharArray())});
      return mongo;
   }

   @Bean
   public MongoTemplate mongoTemplate(Mongo mongo) throws Exception {
      return new MongoTemplate(mongo, database);
   }

你知道我应该如何为此配置 SSL 吗？我可以允许无效的证书吗？

等效的 mongo 命令行是

mongo --ssl --sslAllowInvalidCertificates --host <host> --port <port>

如果您只想将 spring boot 应用程序与 mongodb 连接，则可以使用 java 代码使用 keyStore 和 trustStore 。因此您不必通过命令行添加证书。如果您使用的是 Cloud Foundry，您可以将您的应用程序与 mongodbServices 连接，然后您就可以在 System.getEnv("VCAP_SERVICES") 中获得所需的所有凭据。

@Configuration
public class MongoConfiguration extends AbstractMongoConfiguration {
    private static Log logger = LogFactory.getLog(MongoConfiguration.class);
    @Value("${spring.data.mongodb.database}")
    private String defaultDatabase; //database you want to connect
    private String host;
    private int port;
    private String authenticationDb; //usually admin
    private String username;
    private char[] password;
    private String certificateDecoded; //your CA Certifcate decoded (starts with BEGIN CERTIFICATE)

    public MongoConfiguration() {
        //method for credentials initialization
    }

    //you can't set replicaset=replset in mongooptions so if you want set replicaset, you have to use 
    // customEditorConfigurer in combintaion with class that implementsPropertyEditorRegistrar
    @Bean
    public static CustomEditorConfigurer customEditorConfigurer(){
        CustomEditorConfigurer configurer = new CustomEditorConfigurer();
        configurer.setPropertyEditorRegistrars(
                new PropertyEditorRegistrar[]{new ServerAddressPropertyEditorRegistrar()});
        return configurer;
    }

    @Override
    protected String getDatabaseName() {
        return authenticationDb;
    }

    @Override
    @Bean
    public MongoClient mongoClient() {
        MongoClient mongoClient = new MongoClient(Arrays.asList(new ServerAddress(host, port)), mongoCredentials(), mongoClientOptions());
        return mongoClient;
    }

    @Bean
    public MongoClientOptions mongoClientOptions() {
        MongoClientOptions.Builder mongoClientOptions = MongoClientOptions.builder().sslInvalidHostNameAllowed(true).sslEnabled(true);
        try {
            InputStream inputStream = new ByteArrayInputStream(certificateDecoded.getBytes(StandardCharsets.UTF_8));
            CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
            X509Certificate caCert = (X509Certificate) certificateFactory.generateCertificate(inputStream);

            TrustManagerFactory trustManagerFactory = TrustManagerFactory
                    .getInstance(TrustManagerFactory.getDefaultAlgorithm());
            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            keyStore.load(null); // You don't need the KeyStore instance to come from a file.
            keyStore.setCertificateEntry("caCert", caCert);

            trustManagerFactory.init(keyStore);

            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, trustManagerFactory.getTrustManagers(), null);
            mongoClientOptions.sslContext(sslContext);
            mongoClientOptions.sslInvalidHostNameAllowed(true);
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }

        return mongoClientOptions.build();
    }

    private MongoCredential mongoCredentials() {
        return MongoCredential.createCredential(username, authenticationDb, password);
    }

//With MongoTemplate you have access to db.
    @Bean
    public MongoTemplate mongoTemplate() {
        SimpleMongoDbFactory factory = new SimpleMongoDbFactory(mongoClient(), defaultDatabase);
        return new MongoClient(factory);

    }
}


public final class ServerAddressPropertyEditorRegistrar implements PropertyEditorRegistrar {
    @Override
    public void registerCustomEditors(PropertyEditorRegistry registry) {
        registry.registerCustomEditor(ServerAddress[].class, new ServerAddressPropertyEditor());
    }
}