【jdk安装说明】-------------------------------------------------------------------------------------------------------------------------------------------------------------
(1)下载jdk安装包,选择对应版本:jdk-8u91-linux-x64.tar.gz
注意:32位和64位的版本选择
(2)建立一个文件夹,解压jdk-8u91-linux-x64.tar.gz到当前目录,e.g. /home/yfy/java
yfy@yfy-H81M-DS2:~/java$ tar zxvf jdk-8u91-linux-x64.tar.gz
(3)解压之后,生成一个文件夹 jdk1.8.0_91,开始配置环境变量
用 gedit 打开 /etc/profile文件,注意权限sudo
yfy@yfy-H81M-DS2:~$ sudo gedit /etc/profile
在profile文件最后添加如下语句:
export JAVA_HOME=/home/yfy/java/jdk1.8.0_91
export JRE_HOME=/home/yfy/java/jdk1.8.0_91/jre
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=$CLASSPATH:.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
[注意] 这里的JAVA_HOME对应安装的 jdk1.8.0_91 的路径
(4)将系统默认的 jdk 修改过来
$ sudo update-alternatives --install /usr/bin/java java /home/yfy/java/jdk1.8.0_91/bin/java 300
$ sudo update-alternatives --install /usr/bin/javac javac /usr/lib/java/jdk1.8.0_91/bin/javac 300
$ sudo update-alternatives --config java
$ sudo update-alternatives --config javac
[注意] /usr/bin/java 目录不要更改 后面的 /home/yfy/java/jdk1.8.0_91/bin/java 改为自己对应的路径即可
(5)测试安装是否成功,输入 java --version
【eclipse安装说明】---------------------------------------------------------------------------------------------------------------------------------------------------------
(1)官网下载eclipse:http://www.eclipse.org/downloads/
我的版本:eclipse-jee-mars-2-linux-gtk-x86_64.tar.gz
(2)进入目录 cd : /home/yfy/java 解压文件
yfy@yfy-H81M-DS2:~/java$ tar zxvf eclipse-jee-mars-2-linux-gtk-x86_64.tar.gz
解压之后得到一个 eclipse 文件夹,直接点击该文件下的可执行文件eclipse即可运行
【tomcat安装说明】-----------------------------------------------------------------------------------------------------------------------------------------------------------
(1)官网下载tomcat:http://tomcat.apache.org/
我的版本:apache-tomcat-7.0.69.tar.gz
(2)进入目录 cd : /home/yfy/java 解压文件,并重命名为tomcat7
yfy@yfy-H81M-DS2:~/java$ tar zxvf apache-tomcat-7.0.69.tar.gz
(3)配置环境变量,gedit 修改 /etc/profile 文件
yfy@yfy-H81M-DS2:~/java$ sudo gedit /etc/profile
在profile文件最后添加:
export CATALINA_HOME=/home/yfy/java/tomcat7
export CLASSPATH=.:$JAVA_HOME/lib:$CATALINA_HOME/lib
export PATH=$PATH:$CATALINA_HOME/bin
执行修改命令:
yfy@yfy-H81M-DS2:~/java$ source /etc/profile
查看环境变量:
<span style="background-color: rgb(240, 240, 240);">yfy@yfy-H81M-DS2:~/java$</span> echo $CLASSPATH
(4)测试安装是否成功
启动tomacat:进入/home/yfy/java/tomcat7/bin
yfy@yfy-H81M-DS2:~/java/tomcat7/bin$ ./startup.sh
Using CATALINA_BASE: /home/yfy/java/tomcat7
Using CATALINA_HOME: /home/yfy/java/tomcat7
Using CATALINA_TMPDIR: /home/yfy/java/tomcat7/temp
Using JRE_HOME: /home/yfy/java/jdk1.8.0_91/jre
Using CLASSPATH: /home/yfy/java/tomcat7/bin/bootstrap.jar:/home/yfy/java/tomcat7/bin/tomcat-juli.jar
Tomcat started.
或者
yfy@yfy-H81M-DS2:~/java/tomcat7/bin$ ./catalina.sh start
Using CATALINA_BASE: /home/yfy/java/tomcat7
Using CATALINA_HOME: /home/yfy/java/tomcat7
Using CATALINA_TMPDIR: /home/yfy/java/tomcat7/temp
Using JRE_HOME: /home/yfy/java/jdk1.8.0_91/jre
Using CLASSPATH: /home/yfy/java/tomcat7/bin/bootstrap.jar:/home/yfy/java/tomcat7/bin/tomcat-juli.jar
Tomcat started.
打开浏览器,输入http://localhost:8080/ 出现以下画面则启动成功
停止tomcat:
yfy@yfy-H81M-DS2:~/java/tomcat7/bin$ ./shutdown.sh
或者
yfy@yfy-H81M-DS2:~/java/tomcat7/bin$ ./catalina.sh stop