你也可以这样做:

将bat文件复制到PATH环境变量中已经存在的任何文件夹中 然后只需在任何Windows shell中使用keytool命令

keytool的实际位置在bat文件中定义。如果位置错误，bat文件将扫描您的系统，以检测ProgramFiles(子)文件夹中的潜在位置。

还可以找到keytool2.bat，这是"keytool -v -list -keystore"的便捷快捷方式，广泛用于快速检查jks文件的内容。

keytool.bat:

:: 
:: 
:: "keytool alias" script by Céphas
:: easy method : add the known keytool.exe folder to your personal PATH variable (run : C:\Windows\System32\rundll32.exe sysdm.cpl,EditEnvironmentVariables)
:: else, add the folder containing this bat script to your personal path or put this script in any folder already defined in your path
::
:: also see keytool2.bat that automatically adds the following parameters in the keytool command line : -v -list -keystore, for quick display of jks content
:: 
:: 
@echo off
set THIS_SCRIPT=%~f0
rem  setlocal enableDelayedExpansion : necessary for paths containing special chars
setlocal enableDelayedExpansion

rem  set PATH to keytool.exe ; path must include the final \
rem  ^ is escape char for paths containing & \ < > ^ | 
set PATH_TO=C:\Program Files\Java\jre1.8.0_45\bin\
set PROG_NAME=keytool.exe

rem full_path, with "", to work with paths containing special chars
set FULL_KT_PATH="!PATH_TO!!PROG_NAME!"

rem checks if keytool.exe exists
(dir %FULL_KT_PATH%>nul 2>nul && set KT_FOUND=yes) || set KT_FOUND=no

if %KT_FOUND%==yes (
    rem keytool found => launching it with all supplied parameters
    rem 
    rem
    %FULL_KT_PATH% %*
    rem
    rem
) else (
    rem keytool not found, trying to find it in %ProgramFiles%

    echo.
    echo Keytool not found in expected location, scan in progess ...
    echo.

    cd "%ProgramFiles(x86)%" 2>nul && dir /B /S keytool.exe 2>nul

    cd "%ProgramFiles%" 2>nul && dir /B /S keytool.exe 2>nul

    echo.
    echo *********
    echo Path to program keytool.exe not properly defined, or keytool/java missing on this system
    echo If any location has been found during above scan, fix variable "PATH_TO" in %THIS_SCRIPT% accordingly
    echo *********
    echo.
    pause
    
)    

keytool2.bat:

:: 
:: 
:: "keytool2 alias" script by Céphas
:: easy method : add the known keytool.exe folder to your personal PATH variable (run : C:\Windows\System32\rundll32.exe sysdm.cpl,EditEnvironmentVariables)
:: else, add the folder containing this bat script to your personal path or put this script in any folder already defined in your path
::
:: keytool2 automatically adds the following parameters in the keytool command line : -v -list -keystore
:: thus, to quickly display the full content of a jks file, usage is simply : keytool2 \path\to\your\keystore.jks [-alias your_alias]
:: 
:: 
@echo off
set THIS_SCRIPT=%~f0
rem  setlocal enableDelayedExpansion : necessary for paths containing special chars
setlocal enableDelayedExpansion

rem  set PATH to keytool.exe ; path must include the final \
rem  ^ is escape char for paths containing & \ < > ^ | 
set PATH_TO=C:\Program Files\Java\jre1.8.0_45\bin\
set PROG_NAME=keytool.exe


rem full_path, with "", to work with paths containing special chars
set FULL_KT_PATH="!PATH_TO!!PROG_NAME!"

rem checks if keytool.exe exists
(dir %FULL_KT_PATH%>nul 2>nul && set KT_FOUND=yes) || set KT_FOUND=no

if %KT_FOUND%==yes (
    rem keytool found => launching it with all supplied parameters
    rem 
    rem
    %FULL_KT_PATH% -v -list -keystore %*
    rem
    rem
) else (
    rem keytool not found, trying to find it in %ProgramFiles%

    echo.
    echo Keytool not found in expected location, scan in progess ...
    echo.

    cd "%ProgramFiles(x86)%" 2>nul && dir /B /S keytool.exe 2>nul

    cd "%ProgramFiles%" 2>nul && dir /B /S keytool.exe 2>nul

    echo.
    echo *********
    echo Path to program keytool.exe not properly defined, or keytool/java missing on this system
    echo If any location has been found during above scan, fix variable "PATH_TO" in %THIS_SCRIPT% accordingly
    echo *********
    echo.
    pause
    
)    

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

keytool是JDK的一部分。

尝试将%{JAVA_HOME}\前置到exec语句或c:\{jdk}的路径\bin。

#进入cacerts或jsk所在路径，打开并在cmd下运行以下命令

Keytool -v -list -keystore cacerts

Keytool -v -list -keystore .jks

在Windows上

如果你使用Jetbrain的工具箱来管理Android Studio更新，路径是这样的

C:\Users\{USERNAME}\AppData\Local\JetBrains\Toolbox\apps\AndroidStudio\ch-0\202.7486908\jre\bin 

更新后，我必须手动更新/设置此路径为JAVA_HOME (jre文件夹)

Keytool是Java SDK的一部分。你应该能够在你的Java SDK目录中找到它，例如C:\Program Files\Java\ jdk1.6.0_14\bin