http://blog.chinaunix.net/uid-15463753-id-4252690.html
1.查找java相关得列表
[qyf@localhost ~]$ yum -y list
java*
执行结果
[qyf@localhost ~]$ yum -y list
java*
Loaded plugins:
fastestmirror
base | 1.1 kB 00:00
base/primary | 995 kB
00:00
base 2789/2789
extras | 2.1 kB 00:00
extras/primary_db | 164 kB
00:20
updates | 1.9 kB 00:00
updates/primary_db | 422 kB
00:01
Available Packages
java-1.4.2-gcj-compat.i386 1.4.2.0-40jpp.115
base
java-1.4.2-gcj-compat-devel.i386
1.4.2.0-40jpp.115 base
java-1.4.2-gcj-compat-javadoc.i386
1.4.2.0-40jpp.115 base
java-1.4.2-gcj-compat-src.i386
1.4.2.0-40jpp.115 base
java-1.6.0-openjdk.i386
1:1.6.0.0-5.1.13.3.el5_10 updates
java-1.6.0-openjdk-demo.i386
1:1.6.0.0-5.1.13.3.el5_10 updates
java-1.6.0-openjdk-devel.i386
1:1.6.0.0-5.1.13.3.el5_10 updates
java-1.6.0-openjdk-javadoc.i386
1:1.6.0.0-5.1.13.3.el5_10 updates
java-1.6.0-openjdk-src.i386
1:1.6.0.0-5.1.13.3.el5_10 updates
java-1.7.0-openjdk.i386
1:1.7.0.55-2.4.7.1.el5_10 updates
java-1.7.0-openjdk-demo.i386
1:1.7.0.55-2.4.7.1.el5_10 updates
java-1.7.0-openjdk-devel.i386
1:1.7.0.55-2.4.7.1.el5_10 updates
java-1.7.0-openjdk-javadoc.i386
1:1.7.0.55-2.4.7.1.el5_10 updates
java-1.7.0-openjdk-src.i386
1:1.7.0.55-2.4.7.1.el5_10 updates
java_cup.i386 1:0.10-0.k.6jpp.1
base
java_cup-javadoc.i386 1:0.10-0.k.6jpp.1
base
java_cup-manual.i386 1:0.10-0.k.6jpp.1
base
javacc.i386 4.0-3jpp.3
base
javacc-demo.i386 4.0-3jpp.3
base
javacc-manual.i386 4.0-3jpp.3
base
2.使用root用户安装
安装时提醒必须使用root用户，sudo都不行。
[qyf@localhost ~]$ yum -y install
java-1.6.0-openjdk*
执行结果
[qyf@localhost ~]$ yum -y install
java-1.6.0-openjdk*
Loaded plugins:
fastestmirror
Loading mirror speeds from cached
hostfile
* base: mirror.bit.edu.cn
* extras:
mirror.bit.edu.cn
* updates:
centos.ustc.edu.cn
base | 1.1 kB 00:00
base/primary | 995 kB
00:07
base 2789/2789
extras | 2.1 kB 00:00
extras/primary_db | 164 kB
00:02
updates | 1.9 kB 00:00
updates/primary_db | 422 kB
00:07
Setting up Install Process
Resolving Dependencies
–> Running transaction
check
—> Package java-1.6.0-openjdk.i386
1:1.6.0.0-5.1.13.3.el5_10 set to be updated
–> Processing Dependency: jpackage-utils
>= 1.7.3-1jpp.2 for package:
java-1.6.0-openjdk
–> Processing Dependency: libgif.so.4 for
package: java-1.6.0-openjdk
–> Processing Dependency: tzdata-java for
package: java-1.6.0-openjdk
—> Package java-1.6.0-openjdk-demo.i386
1:1.6.0.0-5.1.13.3.el5_10 set to be updated
—> Package java-1.6.0-openjdk-devel.i386
1:1.6.0.0-5.1.13.3.el5_10 set to be updated
—> Package
java-1.6.0-openjdk-javadoc.i386 1:1.6.0.0-5.1.13.3.el5_10 set to be
updated
—> Package java-1.6.0-openjdk-src.i386
1:1.6.0.0-5.1.13.3.el5_10 set to be updated
–> Running transaction
check
—> Package giflib.i386 0:4.1.3-7.3.3.el5
set to be updated
—> Package jpackage-utils.noarch
0:1.7.3-1jpp.3.el5 set to be updated
—> Package tzdata-java.i386 0:2014b-1.el5
set to be updated
–> Finished Dependency
Resolution
Dependencies Resolved
================================================================================
Package Arch Version
Repository
Size
================================================================================
Installing:
java-1.6.0-openjdk i386
1:1.6.0.0-5.1.13.3.el5_10 updates 44 M
java-1.6.0-openjdk-demo i386
1:1.6.0.0-5.1.13.3.el5_10 updates 2.2 M
java-1.6.0-openjdk-devel i386
1:1.6.0.0-5.1.13.3.el5_10 updates 15 M
java-1.6.0-openjdk-javadoc i386
1:1.6.0.0-5.1.13.3.el5_10 updates 20 M
java-1.6.0-openjdk-src i386
1:1.6.0.0-5.1.13.3.el5_10 updates 39 M
Installing for
dependencies:
giflib i386 4.1.3-7.3.3.el5 base 39
k
jpackage-utils noarch 1.7.3-1jpp.3.el5 base 60
k
tzdata-java i386 2014b-1.el5 updates 172
k
Transaction Summary
================================================================================
Install 8 Package(s)
Upgrade 0 Package(s)
Total download size: 120 M
Downloading Packages:
(1/8): giflib-4.1.3-7.3.3.el5.i386.rpm | 39 kB
00:00
(2/8):
jpackage-utils-1.7.3-1jpp.3.el5.noarch.rpm | 60 kB
00:00
(3/8): tzdata-java-2014b-1.el5.i386.rpm | 172
kB 00:04
(4/8):
java-1.6.0-openjdk-demo-1.6.0.0-5.1.13.3.el5_10.i386.rpm | 2.2 MB
00:47
(5/8):
java-1.6.0-openjdk-devel-1.6.0.0-5.1.13.3.el5_10.i386.rpm | 15 MB
04:25
(6/8):
java-1.6.0-openjdk-javadoc-1.6.0.0-5.1.13.3.el5_10.i386.rpm (17%)
19% [============ ] 81 kB/s | 3.8 MB 03:19 ETA
最后一行就是在下载jdk了，这里我们安装jdk1.6相关得全部包。
3.确认是否安装成功
[qyf@localhost ~]$ java
-version
执行结果
[qyf@localhost ~]$ java
-version
java version “1.6.0_30”
OpenJDK Runtime Environment (IcedTea6 1.13.3)
(rhel-5.1.13.3.el5_10-i386)
OpenJDK Client VM (build 23.25-b01, mixed
mode)
正确显示了jdk版本信息就说明安装成功了。
4.默认情况下jdk安装得路径
/usr/lib/jvm
由于我们得机器可能同时安装好几个版本得jdk，所以在/etc/alternatives目录下会有一个java链接到具体的java命令。而这个/etc/alternatives/java会被/usr/bin/java链接。从而java命令就被设置到了shell环境中。
来源URL：http://blog.sina.com.cn/s/blog_5c43706c0102v6pu.html