cd /Library/Java/Home/bin/

keytool -genkey -v -keystore android.keystore -alias android -keyalg RSA -validity 20000 -keystore /Users/当前用户的用户名/android_demo.keystore

keytool -genkey -v -keystore android.keystore -alias android -keyalg RSA -validity 20000 -keystore /Users/xiaoming/android_demo.keystore

xiaomingdeiMac:/ xiaoming$ cd /Library/Java/Home/bin/xiaomingdeiMac:bin xiaoming$ keytool -genkey -v -keystore android.keystore -alias android -keyalg RSA -validity 20000 -keystore /Users/xiaoming/android_demo.keystoreEnter keystore password:  Re-enter new password: What is your first and last name?  [Unknown]:  Li XiaoMingWhat is the name of your organizational unit?  [Unknown]:  www.xiaoming.comWhat is the name of your organization?  [Unknown]:  小明集团What is the name of your City or Locality?  [Unknown]:  广州What is the name of your State or Province?  [Unknown]:  广东省What is the two-letter country code for this unit?  [Unknown]:  86Is CN=Li XiaoMing, OU=www.xiaoming.com, O=小明集团, L=广州, ST=广东省, C=86 correct?  [no]:  yesGenerating 1,024 bit RSA key pair and self-signed certificate (SHA1withRSA) with a validity of 20,000 days	for: CN=Li XiaoMing, OU=www.xiaoming.com, O=小明集团, L=广州, ST=广东省, C=86Enter key password for <android>	(RETURN if same as keystore password):  [Storing /Users/xiaoming/android_demo.keystore]