[Java] Keytool 相關蒐集

• keytool - Key and Certificate Management Tool
• SunCertPathBuilderException: unable to find valid certification path to requested target
• 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
• unable to find valid certification path to requested target
• Keytool工具介紹