我正在这里阅读Facebook开发者的开发指南
它说，我必须使用keytool导出签名为我的应用程序，如:
keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64
我不知道如何找到关键工具，以运行它。我试图打开Windows命令提示符并粘贴上述命令，但它不起作用。
当前回答
在cmd窗口(需要以管理员身份运行)，
cd %JAVA_HOME%
只有在设置了系统环境变量JAVA_HOME后才有效。要为路径设置系统变量，可以这样做
setx %JAVA_HOME% C:\Java\jdk1.8.0_121\
然后你就可以打字了
cd c:\Java\jdk1.8.0_121\bin
or
cd %JAVA_HOME%\bin
然后，执行JAVA jdk提供的任何命令，例如
keytool -genkey -v -keystore myapp.keystore -alias myapp
你只需要按回车键后回答问题(相当于在cmd行上输入值)!密钥将被生成
其他回答
如果你安装了带有Xamarin/移动开发支持的visual studio，你将在这里安装java C:\Program Files\Android\jdk\ microsoft_dist_openjdk_{version}\bin\，就像我的情况一样。
Few observations while I was getting the same problem (Windows). 1. Shell pipe is important. 2. If you are using OpenSSL or Cygwin, definitely you have to install it. 3. keytool comes with JDK so either you have to point to it in the command or you have cd to the JDK/bin folder (where the exe resides) 4. The debug keystore is typically located at ~/.android/debug.keystore 5. password is "android" whether you -keypass it or type it when prompted. 6. For the alias name, you can open (DO NOT SAVE, just open and close) the keystore file with any editor and read it. 7. MOST IMPORTANT - There is a difference is specifying the keystore path within quotes and without. I got it working by using the keystore path within the double quotes. As remix090378 said and as per the instruction, this command indeed worked - cd C:\Program Files\Java\jdk1.7.0_09\bin
keytool -exportcert -alias androiddebugkey -keystore "C:\Users\userName.android\debug. keystore "密钥存储库" -list -v
考虑添加PATH作为环境变量，并通过cmd访问它。
PATH作为值，C:\Program Files\Java\ jre1.8.0_331\bin作为变量，并通过keytool访问它…
keytool是jdk的一部分，它应该是$JAVA_HOME/bin/keytool
Android:在Android中执行keytool命令的位置
如果在classpath变量中设置了JRE，则可以在dos命令提示符下运行Keytool命令。
例如，如果您想获取android SDK调试证书的MD5指纹，
只需运行以下命令…
C:\Documents and Settings\user\.android> keytool -list -alias androiddebugkey -keystore debug.keystore -storepass android -keypass android
C:\Documents and Settings\user\.Android >是包含调试的路径。必须经过认证的密钥存储库。
详情请访问http://code.google.com/android/add-ons/google-apis/mapkey.html#getdebugfingerprint
