CentOS 5.5基礎教程系列

Oracle提供Linux下的安裝包有jdk-6u23-linux-i586.bin和jdk-6u23-linux-i586-rpm.bin，這兩個都可以，下面我用jdk-6u23-linux-i586-rpm.bin安裝

開始安裝：

1. # cd /usr
2. # mkdir java
3. //用Xftp把jdk-6u23-linux-i586-rpm.bin上傳到/usr/java
4. # cd /usr/java
5. # ll
6. # chmod +x ./jdk-6u23-linux-i586-rpm.bin
7. # ./jdk-6u23-linux-i586-rpm.bin

1. # rpm -qa | grep jdk
2. jdk-1.6.0_23-fcs
3. # rpm -qa | grep java
4. sun-javadb-client-10.5.3-0.2
5. sun-javadb-core-10.5.3-0.2
6. sun-javadb-demo-10.5.3-0.2
7. sun-javadb-javadoc-10.5.3-0.2
8. sun-javadb-common-10.5.3-0.2
9. sun-javadb-docs-10.5.3-0.2
10. //由於我不需要sun-javadb，故卸載
11. # rpm -e --nodeps sun-javadb-client-10.5.3-0.2 sun-javadb-core-10.5.3-0.2 sun-javadb-demo-10.5.3-0.2 sun-javadb-javadoc-10.5.3-0.2 sun-javadb-common-10.5.3-0.2 sun-javadb-docs-10.5.3-0.2
12. # rpm -qa | grep jdk
13. jdk-1.6.0_23-fcs
14. # rpm -qa | grep java
15. //沒有任何信息，表示你已經成功卸載

1. # vi /etc/profile
2. //在這文件的最後加入如下代碼
3. export JAVA_HOME=/usr/java/jdk1.6.0_23
4. export PATH=$PATH:$JAVA_HOME/bin
5. export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar
6. //使之生效
7. # source /etc/profile
8. # java -version
9. java version "1.6.0_23"
10. Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
11. Java HotSpot(TM) Client VM (build 19.0-b09, mixed mode, sharing)
12. # javac -version
13. javac 1.6.0_23
14. //至此JDK已經安裝完