一行代码生成签名文件:

keytool -genkeypair -keystore C:/Users/John/Desktop/yourFileName.keystore -alias yourAliasName -validity 36500 -keyalg RSA -dname "CN=a" -keypass yourPassword -storepass yourPassword

之前有一次,大概是用jdk13生成keystore,给apk签名时一直报错
改成jdk8或者jdk7就没报错过
openjdk8官网下载地址:https://jdk.java.net/java-se-ri/8-MR3

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