产生密钥
E:\Java\jdk1.6.0_22\bin\keytool -genkey -v -keystore android.keystore -alias android.keystore -keyalg RSA -validity 20000
签署密钥
E:\Java\jdk1.6.0_22\bin\jarsigner -verbose -keystore android.keystore -signedjar aBMI_signed.apk aBMI.apk android.keystore
验证密钥
E:\Java\jdk1.6.0_22\bin\jarsigner -verify -verbose -certs aBMI_signed.apk