Smack 4抛出“SSLHandshakeException：ValidatorException：SunCertPathBuilderException”在连接上 [英] Smack 4 throws "SSLHandshakeException: ValidatorException: SunCertPathBuilderException" on connect

问题描述

对于我的xmpp堆栈的集成测试，我在localhost上设置了一个vysper服务器（0.7）。
现在我想在版本4.0.2中使用smack-core和smack-tcp连接到服务器。

For integration testing of my xmpp stack I set up a vysper server (0.7) on localhost. Now I want to connect to the server using smack-core and smack-tcp in version 4.0.2.

问题：

Caused by: 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

自打击以来4 api已经改变很多，到目前为止发现的例子已经不能再使用了。
以前有人试过这个吗？

Since the smack 4 api has changed a lot, the examples found so far can not be used anymore. Anyone tried this before?

推荐答案

SSLHandashskeException 告诉我们SSL / TLS握手失败，这是因为有一个 ValidatorException 告诉我们PKIX路径构建失败，因为有一个抛出SunCertPathBuilderException ，因为Java API无法找到所请求目标的有效证书路径。

The SSLHandashskeException tells us that the SSL/TLS handshake has failed, which is because there was a ValidatorException that tells us that the "PKIX path building failed", because there was a SunCertPathBuilderException thrown because the Java API was "unable to find valid certification path to requested target".

Java API（即this不是由Smack完成的）无法使用活动SSLContext为服务器SSL / TLS证书构建有效的证书链。这就是抛出此异常的原因。您需要提供有效的证书（但是由您当前使用的SSLContext定义）或告诉Smack使用接受您的SSLContext（ ConnectionConfiguration.setCustomSSLContext（SSLContext））当前服务器证书

The Java API (ie. this is not done by Smack) could not build a valid certificate chain to the servers SSL/TLS certificate with the active SSLContext. That is why this exception is thrown. You need to provide either a valid certifcate (however that is defined by your currently used SSLContext) or tell Smack to use a SSLContext (ConnectionConfiguration.setCustomSSLContext(SSLContext)) that accepts your current server certificate

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