JDK安装
1、官网下载JDK
地址: http://www.oracle.com/technetwork/articles/javase/index-jsp-138363.html
选择相应的 .gz包下载
2、解压缩,放到指定目录(以jdk-7u60-linux-x64.gz为例)
创建目录:
sudo mkdir /usr/lib/jvm
加压缩到该目录:
sudo tar -zxvf jdk-7u60-linux-x64.gz -C /usr/lib/jvm
3、修改环境变量:
sudo vim ~/.bashrc
文件的末尾追加下面内容:
#set oracle jdk environment
export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_192 ## 这里要注意目录要换成自己解压的jdk 目录
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
使环境变量马上生效
source ~/.bashrc
4、设置系统默认jdk 版本
sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.8.0_192/bin/java 300
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.8.0_192/bin/javac 300
sudo update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/jdk1.8.0_192/bin/jar 300
sudo update-alternatives --install /usr/bin/javah javah /usr/lib/jvm/jdk1.8.0_192/bin/javah 300
sudo update-alternatives --install /usr/bin/javap javap /usr/lib/jvm/jdk1.8.0_192/bin/javap 300
然后执行:
sudo update-alternatives --config java
若是初次安装jdk,会有下面的提示
There is only one alternative in link group java (providing /usr/bin/java):
/usr/lib/jvm/jdk1.8.0_192/bin/java
否者,选择合适的jdk
5、测试jdk
java -version
java version "1.8.0_192"
Java(TM) SE Runtime Environment (build 1.8.0_192-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.192-b12, mixed mode)
jdk 安装成功
maven 安装
下载 http://maven.apache.org/download.cgi
sudo mkdir /opt/maven
sudo tar zxvf apache-maven-3.5.4-bin.tar.gz
export M2_HOME=/home/penghuang/software/apache-maven-3.5.4
export M2=$M2_HOME/bin
export MAVEN_OPTS="-Xms256m -Xmx512m"
export PATH=$M2:$PATH
测试使用 mvn -version
eclipse安装
1、 在官网上下载eclipse
http://www.eclipse.org/downloads/下载 eclipse-jee-luna-SR1-linux-gtk-x86_64.tar.gz
2、 解压eclipse
$ tar -zxvf eclipse-jee-luna-SR1-linux-gtk-x86_64.tar.gz
3、 将文件夹移动到安装目录
$ sudo mv eclipse /usr/local/
4、 启动eclipse
$ /usr/local/eclipse/eclipse
5、 创建桌面快捷方式
sudo su
输入密码
$ vim /usr/share/applications/eclipse.desktop
6 在其中写入
[Desktop Entry]
Name=Eclipse
Comment=Eclipse SDK
Encoding=UTF-8
Exec=/usr/local/eclipse/eclipse
Icon=/usr/local/eclipse/icon.xpm
Terminal=false
Type=Application
Categories=Application;Development;
已经Eclipse完成安装使用
