Installing jdk1.7 under Linux

Keywords: Java Redis JDK Linux

1. Download jdk7 (download it on the official website)
Download address:
http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html

1.1 before downloading, check whether the system is 32-bit or 64 bit

[root@redis ~]# getconf LONG_BIT
64

I am 64 bit here, so I choose to download jdk-7u80-linux-x64.tar.gz
2.2 download tar package:

Select Accept and download jdk-7u80-linux-x64.tar.gz
When downloading, you need to log in to the oracle account. On the CSDN, the old brother provides an account: "the mouse swipes the knife all over the street to find the cat":
Account No.: 2696671285@qq.com
Password: Oracle123
Blog address: http://blog.csdn.net/linbilin_/article/details/50217541
After logging in, you can download it.
2. Import tar package into Linux

yum install -y lrzsz

Use the rz tool to import the downloaded installation package.

3. To install the jdk:
3.1 decompression:

tar -zxvf jdk-7u80-linux-x64.tar.gz -C /usr/local/
cd /usr/local/jdk1.7.0_80/
[root@redis jdk1.7.0_80]# ll
total 19800
drwxr-xr-x 2 uucp 143     4096 Apr 10  2015 bin
-r--r--r-- 1 uucp 143     3339 Apr 10  2015 COPYRIGHT
drwxr-xr-x 4 uucp 143     4096 Apr 10  2015 db
drwxr-xr-x 3 uucp 143     4096 Apr 10  2015 include
drwxr-xr-x 5 uucp 143     4096 Apr 10  2015 jre
drwxr-xr-x 5 uucp 143     4096 Apr 10  2015 lib
-r--r--r-- 1 uucp 143       40 Apr 10  2015 LICENSE
drwxr-xr-x 4 uucp 143     4096 Apr 10  2015 man
-r--r--r-- 1 uucp 143      114 Apr 10  2015 README.html
-rw-r--r-- 1 uucp 143      499 Apr 10  2015 release
-rw-r--r-- 1 uucp 143 19947513 Apr 10  2015 src.zip
-rw-r--r-- 1 uucp 143   110114 Mar 16  2015 THIRDPARTYLICENSEREADME-JAVAFX.txt
-r--r--r-- 1 uucp 143   173571 Apr 10  2015 THIRDPARTYLICENSEREADME.txt

3.2 modify environment variables:

[root@redis jdk1.7.0_80]# vim /etc/profile

Add on the last face

export JAVA_HOME=/usr/local/jdk1.7.0_80
export JRE_HOME=/usr/local/jdk1.7.0_80/jre 
export PATH=$PATH:/usr/local/jdk1.7.0_80/bin 
export CLASSPATH=./:/usr/local/jdk1.7.0_80/lib:/usr/local/jdk1.7.0_80/jre/lib

Or:

JAVA_HOME=/usr/local/jdk1.7.0_80
JRE_HOME=/usr/local/jdk1.7.0_80/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

Reload:

 # source /etc/profile

4. Check whether the java version is installed successfully

[root@redis jdk1.7.0_80]# java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
[root@redis jdk1.7.0_80]# which  java
/usr/local/jdk1.7.0_80/bin/java

The jdk installation is now complete.

Special thanks: thanks for the oracle account provided by the old brother "the mouse wring the knife all over the street looking for the cat".

Posted by fr600 on Tue, 31 Mar 2020 12:36:03 -0700