[root@WX32 local]# java -version java version "1.6.0" OpenJDK Runtime Environment (build 1.6.0-b09) OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode) [root@WX32 local]# rpm -qa | grep java java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5 java-1.4.2-gcj-compat-1.4.2.0-40jpp.115 [root@WX32 local]# rpm -e --nodeps java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5 [root@WX32 local]# rpm -e --nodeps java-1.4.2-gcj-compat-1.4.2.0-40jpp.115 [root@WX32 local]# java -version -bash: /usr/bin/java: No such file or directory
安装SunJDK:
[root@WX32 local]# mkdir java [root@WX32 local]# cd java/ [root@WX32 java]# pwd /usr/local/java [root@WX32 java]# wget http://download.oracle.com/otn/java/jdk/6u45-b06/jdk-6u45-linux-i586.bin [root@WX32 java]# chmod +x jdk-6u45-linux-i586.bin [root@WX32 java]# ./jdk-6u45-linux-i586.bin
解压安装包后,配置环境变量:
[root@WX32 java]# vi /etc/profile
在文件最后一行添加(注意安装路径):
JAVA_HOME=/usr/local/java/jdk1.6.0_45 JRE_HOME=/usr/local/java/jdk1.6.0_45/jre PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin CLASSPATH=.:$JAVA_HOME/lib/jt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib export JAVA_HOME JRE_HOME PATH CLASSPATH
保存退出后,使其生效后即可:
[root@WX32 java]# source /etc/profile [root@WX32 java]# java -version java version "1.6.0_45" Java(TM) SE Runtime Environment (build 1.6.0_45-b06) Java HotSpot(TM) Server VM (build 20.45-b01, mixed mode)