java - 如何在 Spring Boot 休息模板中使用 .pfx 证书和密码调用安全休息 api？

Question

我需要从我的 spring boot 应用程序中调用一个外部安全的 rest api(ssl enabled)。邮递员可以使用 .pfx 证书和密码访问外部 api。现在我想通过在每个请求上附加 .pfx 文件和密码来使用 rest 模板调用外部 api。

我不知道如何使用 pfx 证书通过 ssl 进行休息模板调用。任何帮助将不胜感激。

Answer 1

What you need to do is to configure the underlying apache http client of the rest template. Below is an example configuration:

SSLContext sslContext = ...;

HttpClient httpClient = HttpClients.custom()
    .setSSLContext(sslContext)
    .build();

HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);

RestTemplate restTemplate = new RestTemplate(requestFactory);

There are couple of libraries which provides easy to use utility/factory/builder classes to help you to create a SSLContext.

• Apache SSLContextBuilder
• Jetty SslContextFactory
• SSLContext-Kickstart

There could be a bunch other libraries which provide similar functionality, but I am only aware of these three. By the way the sslcontext-kickstart is a library which is maintained by me.

Below is an overview of four ways to load the keystores and create an SSLContext. Vanilla Java and by using the three libraries.

import io.netty.handler.ssl.SslContextBuilder;
import nl.altindag.ssl.SSLFactory;
import org.apache.http.ssl.SSLContextBuilder;
import org.eclipse.jetty.util.ssl.SslContextFactory;

import javax.net.ssl.*;
import java.io.File;
import java.io.InputStream;
import java.security.KeyStore;
import java.security.SecureRandom;
import java.util.Objects;

class SslExample {

    public static void main(String[] args) throws Exception {

        //creating sslContext with sslcontext-kickstart
        SSLFactory sslFactory = SSLFactory.builder()
                .withIdentityMaterial("keystore.pfx", "secret".toCharArray())
                .withTrustMaterial("truststore.pfx", "secret".toCharArray())
                .build();

        SSLContext sslContext = sslFactory.getSslContext();

        //Traditional flow of creating sslContext
        String keyStorePath = "keystore.pfx";
        String trustStorePath = "truststore.pfx";

        char[] keyStorePassword = "secret".toCharArray();
        char[] trustStorePassword = "secret".toCharArray();

        KeyStore keyStore = KeyStore.getInstance("PKCS12");
        KeyStore trustStore = KeyStore.getInstance("PKCS12");

        try(InputStream keyStoreInputStream = SslExample.class.getClassLoader().getResourceAsStream(keyStorePath);
            InputStream trustStoreInputStream = SslExample.class.getClassLoader().getResourceAsStream(trustStorePath)) {

            Objects.requireNonNull(keyStoreInputStream);
            Objects.requireNonNull(trustStoreInputStream);

            keyStore.load(keyStoreInputStream, keyStorePassword);
            trustStore.load(trustStoreInputStream, trustStorePassword);
        }

        KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
        keyManagerFactory.init(keyStore, keyStorePassword);
        KeyManager[] keyManagers = keyManagerFactory.getKeyManagers();

        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init(trustStore);
        TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();

        SSLContext sslContext1 = SSLContext.getInstance("TLSv1.2");
        sslContext.init(keyManagers, trustManagers, new SecureRandom());

        //creating sslContext with Apache SSLContextBuilder
        SSLContext sslContext2 = SSLContextBuilder.create()
                .loadKeyMaterial(new File("keystore.pfx"), "secret".toCharArray(), "secret".toCharArray())
                .loadTrustMaterial(new File("truststore.pfx"), "secret".toCharArray())
                .build();

        //creating sslContext with Jetty SslContextFactory
        SslContextFactory.Client sslContextFactory = new SslContextFactory.Client();
        sslContextFactory.setKeyStorePath("keystore.pfx");
        sslContextFactory.setKeyStorePassword("secret");
        sslContextFactory.setTrustStorePath("truststore.pfx");
        sslContextFactory.setTrustStorePassword("secret");
        sslContextFactory.start();

        SSLContext sslContext3 = sslContextFactory.getSslContext();
    }

}