使用JDK自带的 keytool 工具生成公私钥证书库

E:\license> keytool -genkeypair -keysize 2048 -validity 36500 -alias "privateKey" -keyalg "RSA" -keystore "" -storepass "Zhld2021@!" -keypass "Zhld2021@!" -dname "CN=localhost, OU=localhost, O=localhost, L=SH, ST=SH, C=CN"