環境描述:Ubuntu Server 12.04 / java-6-sun-1.6.0.06 / apache-maven-3.0.4
1、安裝sun-jdk
因爲sun-jdk被oracle收購了,所以Ubuntu支持開源,目前已經沒有oracle java jdk新版本的更新源了,所以要安裝sun-jdk,只能安裝老版本,而且必須要更新Ubuntu的下載源,如下:
需要安裝
>> apt-get install python-software-properties
將sun-6-jre的下載源更新到sources.list中
>> add-apt-repository "deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse"
然後就可以通過命令行直接安裝了,安裝之前需要更新列表apt-get update
>> apt-get install sun-java6-jdk
通常情況下,Ubuntu server會默認選擇安裝openjdk,所以這裏我們要更改jdk的優先級以及指令鏈接如下:
>> update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-6-sun-1.6.0.06/bin/java 300
>> update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/java-6-sun-1.6.0.06/bin/javac 300
接着修改默認的JDK
>> sudo update-alternatives --config java,如下選擇默認使用的jdk
There are 3 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 auto mode
1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 manual mode
* 2 /usr/lib/jvm/java-6-sun-1.6.0.06/bin/java 300 manual mode
3 /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode
Press enter to keep the current choice[*], or type selection number: 這裏選擇 2 即可
至此,sun-jdk被默認安裝在了/usr/lib/jvm/java-6-sun-1.6.0.06
2、安裝maven2
到http://maven.apache.org/去下載maven的最新版本,當前是apache-maven-3.0.4,包選擇apache-maven-3.0.4-bin.tar.gz
將apache-maven-3.0.4-bin.tar.gz上傳到/usr/share目錄下,通過如下命令解壓
>> tar -zxvf apache-maven-3.0.4-bin.tar.gz 至 /usr/share/apache-maven-3.0.4
至此maven的安裝完成
3、配置Java和maven的環境變量
>> vi /etc/environment
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:$JAVA_HOME/bin:$MAVEN_HOME/bin"
JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.06
CLASSPATH=.:$JAVA_HOME/lib
MAVEN_HOME=/usr/share/apache-maven-3.0.4
export JAVA_HOME
export MAVEN_HOME
export CLASSPATH
export PATH
此處的PATH:$JAVA_HOME/bin:$MAVEN_HOME/bin,可以單獨作爲一行單列也可以。
保存之後,重新其中環境變量使之生效
>> source /etc/environment
4、檢測Java和maven配置是否成功
>> java -version
java version "1.6.0_06"
Java(TM) SE Runtime Environment (build 1.6.0_06-b02)
Java HotSpot(TM) 64-Bit Server VM (build 10.0-b22, mixed mode)
>> mvn -version
Apache Maven 3.0.4 (r1232337; 2012-01-17 08:44:56+0000)
Maven home: /usr/share/apache-maven-3.0.4
Java version: 1.6.0_06, vendor: Sun Microsystems Inc.
Java home: /usr/lib/jvm/java-6-sun-1.6.0.06/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.2.0-24-virtual", arch: "amd64", family: "unix"
到此表示Java和Maven的環境配置成功!