如何使用 jar 中的文件作为 javax.net.ssl.keystore？

我正在尝试做类似的事情

URL clientks = com.messaging.SubscriptionManager.class.getResource( "client.ks" );
String path = clientks.toURI().getPath();
System.setProperty( "javax.net.ssl.keyStore", path);

其中 client.ks 是存储在我正在运行的 jar 文件中 com/messaging 中的文件。

读取 javax.net.ssl.keyStore 的东西需要 jar 中的 client.ks 文件的路径。如果可能的话，我宁愿不提取文件并将其放入客户端的计算机上。那么是否可以引用jar中的文件呢？

这不起作用，因为 getPath() 返回 null。还有其他方法可以做到这一点吗？

仍在致力于实现，但我相信可以通过 InputStream 从 jar 加载密钥库，并以编程方式显式设置 TrustStore（相对于设置系统属性）。参见文章：在同一个 JVM 上设置多个信任库 https://stackoverflow.com/questions/7591281/setting-multiple-truststore-on-the-same-jvm

成功了！

InputStream keystoreInput = Thread.currentThread().getContextClassLoader()
    .getResourceAsStream(<path in jar>/client.ks");
InputStream truststoreInput = Thread.currentThread().getContextClassLoader()
    .getResourceAsStream(<path in jar>/client.ts");
setSSLFactories(keystoreInput, "password", truststoreInput);
keystoreInput.close();
truststoreInput.close();

private static void setSSLFactories(InputStream keyStream, String keyStorePassword, 
    InputStream trustStream) throws Exception
{    
  // Get keyStore
  KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());    

  // if your store is password protected then declare it (it can be null however)
  char[] keyPassword = keyStorePassword.toCharArray();

  // load the stream to your store
  keyStore.load(keyStream, keyPassword);

  // initialize a key manager factory with the key store
  KeyManagerFactory keyFactory = 
  KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());    
  keyFactory.init(keyStore, keyPassword);

  // get the key managers from the factory
  KeyManager[] keyManagers = keyFactory.getKeyManagers();

  // Now get trustStore
  KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());    

  // if your store is password protected then declare it (it can be null however)
  //char[] trustPassword = password.toCharArray();

  // load the stream to your store
  trustStore.load(trustStream, null);

  // initialize a trust manager factory with the trusted store
  TrustManagerFactory trustFactory = 
  TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());    
  trustFactory.init(trustStore);

  // get the trust managers from the factory
  TrustManager[] trustManagers = trustFactory.getTrustManagers();

  // initialize an ssl context to use these managers and set as default
  SSLContext sslContext = SSLContext.getInstance("SSL");
  sslContext.init(keyManagers, trustManagers, null);
  SSLContext.setDefault(sslContext);    
}