假设已经有.jks证书文件及其密钥

命令为 jarsigner -keystore jks证书 -storepass 证书密码 你的JAR 证书的Alias

栗子:

./jdk-17.0.2/bin/jarsigner -keystore ./xxx.jks -storepass your-pass ./springboot.jar xxx

验证签名:

./jdk-17.0.2/bin/jarsigner -verify -verbose ./xxx.jar

Q.E.D.