android证书：

set PATH=%PATH%;"C:\Program Files (x86)\Java\jre1.8.0_301\bin"
cd C:\zgd\workspace\smart-miao\code\app

cd smart-miao\code\app
keytool -genkey -alias luckycat.keystore -keyalg RSA -keysize 2048 -validity 36500 -keystore luckycat.keystore

证书密码：luckycat

keytool -list -v -keystore luckycat.keystore
SHA1: CA:37:40:2C:83:1D:B4:41:84:CF:5E:21:0C:93:11:C5:D6:53:64:33

包名：com.smartmiao.luckycat

！！！jdk 版本高于8，生成的证书会提示 "证书文件不是有效的keystore文件"，使用下面命令重新生成

keytool -genkey -alias luckycat.keystore -keyalg RSA -sigalg SHA1WithRSA -validity 36500 -keysize 1024 -keystore luckycat.keystore -v
keytool -importkeystore -srckeystore ./luckycat.keystore -destkeystore ./luckycat.keystore -deststoretype JKS
