更新java版本後一定要做的事情 @外行中的外行

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更新java版本後一定要做的事情

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how to deal with PKIX path building failed issue after upgrade java sdk version in IDE

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2020-11-23 21:58:55 最後編修

2020-11-20 23:34:34 By jung

每次編譯器更新java sdk版本後，例如這次我從openjdk11.0.5升級到11.0.8

就會出現：javax.net.ssl.SSLHandshakeException: PKIX path building failed

編譯或執行時出錯

找到解法如下：

1.先下載該網站公開憑證

例如我想連到 google.com 透過 HTTPS執行程式或下載

使用openssl先產生該網站的crt憑證檔案

openssl s_client -connect google.com:443 -servername google.com:443 < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > public.crt

2.再匯到jvm的cacert 中，這邊一定要找到jdk版本中keytool的絕對路徑

例如：/Library/Java/JavaVirtualMachines/adoptopenjdk-11-openj9.jdk/Contents/Home/bin/keytool

<JAVA_HOME>/bin/keytool -import -alias <server_name> -keystore <JAVA_HOME>/jre/lib/security/cacerts -file public.crt

這樣就可以解決了

參考文件

https://confluence.atlassian.com/kb/how-to-import-a-public-ssl-certificate-into-a-jvm-867025849.html

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