jenv: Java environment manager ----linux_china

About Me

Weibo: @linux_china

Java Engineer with 14 yearsPreacher of IntelliJ IDEA

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Github: https://github.com/linux-china/

Agenda

Why environment manger

jenv introduction

jenv commands

jenv repository

FAQ

yum and apt-get: version???

rvm: Ruby Version Manager

virtualenv: Python Version Manager

Other: php, node.js

Java: 404

Why Version Manager

Java & Toolkit Version Manager

Structure Standard

Repository Based

Git & Subversion Support

Upgrade???

jenv Introduction

Install: curl -s get.jenv.mvnsearch.org | bash

List: jenv ls maven

Install: jenv install maven

Switch: jenv use maven 3.1.1

cd XXX_HOME: jenv cd maven 3.1.1

jenv basic

Default version: jenv default maven 3.0.5

current candidate: jenv which java

Candidate Update: jenv update xxx version

Self update: jenv selfupdate

Repo update: jenv repo update

Uninstall: jenv uninstall ant 1.8.4

jenv commands

jenvrc

a file named “jenvrc” in the directory

properties format as following: java=1.7.0_45 maven=3.1.1

Change java env after “cd”

Repeatable Development Environments with jenv

clone jenv to remote host $ jenv clone user@dest-host

clone candidate to remote host $ jenv clone candidate version user@dest-host

clone candidate from remote host $ jenv clone user@dest-host candidate version

jenv repository

Manager Candidates & Versions

Public or Private

Package format: zip, git or subversion

Central: http://jenv.io

jenv with IntelliJ IDEA

JDK setup: auto

SDK(Maven, Gradle) setup: auto

jenvrc support

FAQ