How to import a .cer certificate into a java keystore?

To import a .cer certificate into a Java keystore, you can use the keytool utility that comes with the Java Development Kit (JDK). The keytool utility is a command-line tool that allows you to manage certificates and keystores.

To import a .cer certificate into a keystore, you need to use the keytool -importcert command, followed by the following options:

  1. -keystore: The path to the keystore file.
  2. -file: The path to the .cer file.
  3. -alias: The alias to use for the certificate in the keystore.
  4. -storepass: The password for the keystore.

Here's an example of how you can import a .cer certificate into a keystore using the keytool utility:

keytool -importcert -keystore mykeystore.jks -file mycert.cer -alias myalias -storepass mystorepass

This command will import the certificate in the mycert.cer file into the keystore mykeystore.jks, and assign it the alias myalias. The keystore is protected by the password mystorepass.

Note that the keytool utility