I need to use mapview control in android and I can't seem to understand how to run keytool.
Is it installed with eclipse? I can't seem to find a download link.
Thanks
keytool is part of the standard java distribution.
In a windows 64-bit machine, you would normally find the jdk at
C:\Program Files\Java\jdk1.8.0_121\bin
It is used for managing keys and certificates you can sign things with, in your case, probably a jar file.
If you provide more details of what you need to do, we could probably give you a more specific answer.
keytool is a tool to manage key and certificates. It is provided with any standard JDK distribution and can be located in %JAVA_HOME%\bin.
For me it turned out to be in c/Program Files/Java/jdk1.7.0_25/bin (Windows 8). A more general answer to this question is that it will most likely be in the bin sub directory of wherever your jdk is installed.
keytool it's a binary file into the JDK folder ... just add your JDK as environment variable by adding the following line
C:\Program Files\Java\jdk1.8.0_65\bin
If you are working with a Mac... the keytool is part of the Java SDK and can be found in the following location /System/Library/Java/JavaVirtualMachines/[VERSION].jdk/Contents/Home/bin/keytool
here: C:\Program Files\Java\jre7\bin it is an exe keytool.exe
It is in path/to/jdk/bin. Make sure that $JAVA_HOME is defined, and $JAVA_HOME/bin is added to $PATH, or else the 'keytool' command won't be recognized when called.
If you have java installed of course keytool is in there. What you need to do is to add it on your PATH variable.
来源：https://stackoverflow.com/questions/4830253/where-is-the-keytool-application