centos下yum安装jdk

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-1.7.0-openjdk*

执行结果

[root@mobileSQL ~]# yum -y install java-1.7.0-openjdk*

Loaded plugins: fastestmirror, rhnplugin

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

Repository contrib is listed more than once in the configuration

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository addons is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

Repository epel is listed more than once in the configuration

Repository epel-debuginfo is listed more than once in the configuration

This system is not registered with RHN.

RHN support will be disabled.

Loading mirror speeds from cached hostfile

* addons: centos.ustc.edu.cn

* base: mirrors.aliyun.com

* epel: mirrors.neusoft.edu.cn

* extras: centos.ustc.edu.cn

* updates: centos.ustc.edu.cn
http://yum.centos56.com/centos/5.6/sec/x86_64/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>

Trying other mirror.

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package java-1.7.0-openjdk.x86_64 1:1.7.0.111-2.6.7.1.el5_11 set to be updated

--> Processing Dependency: libXcomposite.so.1()(64bit) for package: java-1.7.0-openjdk

---> Package java-1.7.0-openjdk-demo.x86_64 1:1.7.0.111-2.6.7.1.el5_11 set to be updated

---> Package java-1.7.0-openjdk-devel.x86_64 1:1.7.0.111-2.6.7.1.el5_11 set to be updated

---> Package java-1.7.0-openjdk-javadoc.x86_64 1:1.7.0.111-2.6.7.1.el5_11 set to be updated

---> Package java-1.7.0-openjdk-src.x86_64 1:1.7.0.111-2.6.7.1.el5_11 set to be updated

--> Running transaction check

---> Package libXcomposite.x86_64 0:0.3-5.1 set to be updated

--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================

Package Arch Version Repository Size

========================================================================================

Installing:

java-1.7.0-openjdk-demo x86_64 1:1.7.0.111-2.6.7.1.el5_11 updates 2.4 M

java-1.7.0-openjdk-devel x86_64 1:1.7.0.111-2.6.7.1.el5_11 updates 12 M

java-1.7.0-openjdk-javadoc x86_64 1:1.7.0.111-2.6.7.1.el5_11 updates 21 M

java-1.7.0-openjdk-src x86_64 1:1.7.0.111-2.6.7.1.el5_11 updates 40 M

Updating:

java-1.7.0-openjdk x86_64 1:1.7.0.111-2.6.7.1.el5_11 updates 39 M

Installing for dependencies:

libXcomposite x86_64 0.3-5.1 base 12 k

Transaction Summary

========================================================================================

Install 5 Package(s)

Upgrade 1 Package(s)

Total download size: 115 M

Downloading Packages:

(1/6): libXcomposite-0.3-5.1.x86_64.rpm | 12 kB 00:00

(2/6): java-1.7.0-openjdk-demo-1.7.0.111-2.6.7.1.el5_11.x86_64.r | 2.4 MB 00:04

(3/6): java-1.7.0-openjdk-devel-1.7.0.111-2.6.7.1.el5_11.x86_64. | 12 MB 00:23

(4/6): java-1.7.0-openjdk-javadoc-1.7.0.111-2.6.7.1.el5_11.x86_6 | 21 MB 00:45

(5/6): java-1.7.0-openjdk-1.7.0.111-2.6.7.1.el5_11.x86_64.rpm | 39 MB 01:15

(6/6): java-1.7.0-openjdk-src-1.7.0.111-2.6.7.1.el5_11.x86_64.rp | 40 MB 01:13

----------------------------------------------------------------------------------------

Total 524 kB/s | 115 MB 03:45

Running rpm_check_debug

Running Transaction Test

Finished Transaction Test

Transaction Test Succeeded

Running Transaction

Installing : libXcomposite 1/7

Installing : java-1.7.0-openjdk-javadoc 2/7

Updating : java-1.7.0-openjdk 3/7

Installing : java-1.7.0-openjdk-devel 4/7

Installing : java-1.7.0-openjdk-demo 5/7

Installing : java-1.7.0-openjdk-src 6/7

Cleanup : java-1.7.0-openjdk 7/7

Installed:

java-1.7.0-openjdk-demo.x86_64 1:1.7.0.111-2.6.7.1.el5_11

java-1.7.0-openjdk-devel.x86_64 1:1.7.0.111-2.6.7.1.el5_11

java-1.7.0-openjdk-javadoc.x86_64 1:1.7.0.111-2.6.7.1.el5_11

java-1.7.0-openjdk-src.x86_64 1:1.7.0.111-2.6.7.1.el5_11

Dependency Installed:

libXcomposite.x86_64 0:0.3-5.1

Updated:

java-1.7.0-openjdk.x86_64 1:1.7.0.111-2.6.7.1.el5_11

Complete!

3.确认是否安装成功

[qyf@localhost ~]$ java -version

执行结果

java version "1.7.0_111"

OpenJDK Runtime Environment (rhel-2.6.7.1.el5_11-x86_64 u111-b01)

OpenJDK 64-Bit Server VM (build 24.111-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。