Linux源碼安裝Java jdk環境

                                  Linux源碼安裝Java jdk環境

1.下載源碼包

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-x64.tar.gz"

2.解壓下載包

mkdir  /usr/local/java
tar zxvf jdk-8u151-linux-x64.tar.gz  -C  /usr/local/java

3.配置環境變量

JAVA_HOME=/usr/local/java/jdk1.8.0_141
JRE_HOME=/usr/local/java/jdk1.8.0_141/jre
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME JRE_HOME CLASS_PATH PATH

4.使配置文件生效

source /etc/profile 

5.驗證

[root@localhost ~]$ java -version
java version "1.8.0_141"
Java(TM) SE Runtime Environment (build 1.8.0_141-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.141-b15, mixed mode)

 PS:卸載yum安裝的jdk方法如下：

1.找出yum安裝的java

yum list installed | grep java 

 2.java相關得列表

rpm  -e  --nodeps   java-1.8.0-openjdk.x86_64
rpm  -e  --nodeps   java-1.8.0-openjdk-devel.x86_64