Java 8 application on EC2

问题:

I was wondering if anyone knows if it will be possible for me to install Java 8 on an EC2 instance. My application is packed as a fat jar with embedded jetty, so the Java 8 runtime alone should be sufficient.

I'm not too familiar with Linux, and I saw that they only had Java 7 support on the default AMI. Is there a simple command I can run to update to Java 8?

回答1:

Java 8 may not be available out-of-the-box on the AMI that you are looking for. However, you can always install it once the instance is created.

e.g. Check this post which explains how to install java 8 on Ubuntu OR check this post which explains how to install Java 8 on RHEL/Fedora/CentOS.

回答2:

check Java current version

java -version 

install Java 1.8

sudo yum install java-1.8.0 

change the Java version

sudo alternatives --config java 

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