keytool -genkey -v -keystore demo.keystore -alias demo.keystore -keyalg RSA -keysize 2048 -validity 10000 -sigalg SHA1withRSA     //生成签名文件 

jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore demo.keystore -signedjar ok.apk  22.apk demo.keystore            //给22.apk签名

adb connect  192.168.99.120

adb push /tmp/22.apk  /system/etc/22.apk

adb install /tmp/22.apk