如何使用带有SSL证书的https客户端从Java调用API

tvmytwxo 于 5个月前发布在 Java

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我使用HttpClient从Java文件调用rest API。通过使用它，我可以调用http API，但不能调用https API。
我得到下面的错误，而调用httpsapi。

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1946)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:316)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:310)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1639)
        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:223)
        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1037)
        at sun.security.ssl.Handshaker.process_record(Handshaker.java:965)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1064)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379)

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我想使用CloseableHttpClient调用https API。
我的证书文件中有私钥。请告诉我如何使用私钥调用API？

Java

来源：https://stackoverflow.com/questions/66388657/how-to-invoke-apis-from-java-using-https-client-with-ssl-certificate

1条答案

按热度按时间

aydmsdu91#

要使用https调用API，您需要配置SSLContext并将其设置为您的HttpClient。请参考下面的示例代码。这只是示例，您可以以不同的方式加载keystore和truststore，例如从classpath，form file system等。，进行相应的更改。

KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());

    KeyStore identity = KeyStore.getInstance(KeyStore.getDefaultType());
    TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
    trustManagerFactory.init(trustStore);
    KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
    keyManagerFactory.init(identity, "password".toCharArray());
    SSLContext sslContext = SSLContext.getInstance("TLSv1.3");
    sslContext.init(
        keyManagerFactory.getKeyManagers(), 
        trustManagerFactory.getTrustManagers(), 
        null
    );
    HttpClient httpClient = HttpClients.custom()
            .setSSLContext(sslContext)
            .setSSLHostnameVerifier(new DefaultHostnameVerifier())
            .build();

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如何使用带有SSL证书的https客户端从Java调用API

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