This is only a preview; changes have not yet been saved!
This tutorial will cover the installation of 32-bit and 64-bit Oracle Java 7 (currently version number 1.7.0_25) JDK on 32-bit and 64-bit Ubuntu operating systems. These instructions will also work on Debian and Linux Mint.
This article is for those who only want to install the Oracle Java JDK with the Oracle Java JRE included in the JDK download. Instructions for how to install Oracle Java JDK only on Debian based Linux operating systems such as Debian, Ubuntu and Linux Mint.
Steps
-
1Check to see if your Ubuntu Linux operating system architecture is 32-bit or 64-bit, open up a terminal and run the following command below.<iframe id="aswift_0" style="margin: 0px; padding: 0px; border-style: none; left: 0px; position: absolute; top: 0px;" name="aswift_0" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" width="468" height="60"></iframe>
-
Type/Copy/Paste: file /sbin/init
- Note the bit version of your Ubuntu Linux operating system architecture it will display whether it is 32-bit or 64-bit.
- Note the bit version of your Ubuntu Linux operating system architecture it will display whether it is 32-bit or 64-bit.
-
Type/Copy/Paste: file /sbin/init
-
2Check if you have Java installed on your system. To do this, you will have to run the Java version command from terminal.
- Open up a terminal and enter the following command:
-
Type/Copy/Paste: java -version
-
Type/Copy/Paste: java -version
- If you have OpenJDK installed on your system it may look like this:
- java version "1.7.0_15"
OpenJDK Runtime Environment (IcedTea6 1.10pre) (7b15~pre1-0lucid1)
OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode)
- java version "1.7.0_15"
- If you have OpenJDK installed on your system, you have the wrong vendor version of Java installed for this exercise.
- Open up a terminal and enter the following command:
-
3Completely remove the OpenJDK/JRE from your system and create a directory to hold your Oracle Java JDK/JRE binaries. This will prevent system conflicts and confusion between different vendor versions of Java. For example, if you have the OpenJDK/JRE installed on your system, you can remove it by typing the following at the command line:
-
Type/Copy/Paste: sudo apt-get purge openjdk-\*
- This command will completely remove OpenJDK/JRE from your system
- This command will completely remove OpenJDK/JRE from your system
-
Type/Copy/Paste: sudo mkdir -p /usr/local/java
- This command will create a directory to hold your Oracle Java JDK and JRE binaries.
- This command will create a directory to hold your Oracle Java JDK and JRE binaries.
-
Type/Copy/Paste: sudo apt-get purge openjdk-\*
-
4Download the Oracle Java JDK for Linux. Make sure you select the correctcompressed binaries for your system architecture 32-bit or 64-bit (which end in tar.gz).
- For example, if you are on Ubuntu Linux 32-bit operating system download 32-bit Oracle Java binaries.
- For example, if you are on Ubuntu Linux 64-bit operating system download 64-bit Oracle Java binaries.
- Optional, Download the Oracle Java JDK Documentation
- Select jdk-7u25-apidocs.zip
- Select jdk-7u25-apidocs.zip
-
Important Information: 64-bit Oracle Java binaries do not work on 32-bit Ubuntu Linux operating systems, you will receive multiple system error messages, if you attempt to install 64-bit Oracle Java on 32-bit Ubuntu Linux.
- For example, if you are on Ubuntu Linux 32-bit operating system download 32-bit Oracle Java binaries.
-
5Copy the Oracle Java binaries into the /usr/local/java directory. In most cases, the Oracle Java binaries are downloaded to: /home/"your_user_name"/Downloads.
-
32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:
-
Type/Copy/Paste: cd /home/"your_user_name"/Downloads
-
Type/Copy/Paste: sudo cp -r jdk-7u25-linux-i586.tar.gz /usr/local/java
-
Type/Copy/Paste: cd /usr/local/java
-
Type/Copy/Paste: cd /home/"your_user_name"/Downloads
-
64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions:
-
Type/Copy/Paste: cd /home/"your_user_name"/Downloads
-
Type/Copy/Paste: sudo cp -r jdk-7u25-linux-x64.tar.gz /usr/local/java
-
Type/Copy/Paste: cd /usr/local/java
-
Type/Copy/Paste: cd /home/"your_user_name"/Downloads
-
32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:
-
6Run the following commands on the downloaded Oracle Java tar.gz files. Make sure to do this as root in order to make them executable for all users on your system. To open a root terminal type sudo -s you will be prompted for your logon password.
-
32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:
-
Type/Copy/Paste: sudo chmod a+x jdk-7u25-linux-i586.tar.gz
-
Type/Copy/Paste: sudo chmod a+x jdk-7u25-linux-i586.tar.gz
-
64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions:
-
Type/Copy/Paste: sudo chmod a+x jdk-7u25-linux-x64.tar.gz
-
Type/Copy/Paste: sudo chmod a+x jdk-7u25-linux-x64.tar.gz
-
32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:
-
7Unpack the compressed Java binaries, in the directory /usr/local/java
-
32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:
-
Type/Copy/Paste: sudo tar xvzf jdk-7u25-linux-i586.tar.gz
-
Type/Copy/Paste: sudo tar xvzf jdk-7u25-linux-i586.tar.gz
-
64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions:
-
Type/Copy/Paste: sudo tar xvzf jdk-7u25-linux-x64.tar.gz
-
Type/Copy/Paste: sudo tar xvzf jdk-7u25-linux-x64.tar.gz
-
32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions:
-
8Double-check your directories. At this point, you should have two uncompressed binary directories in /usr/local/java for the Java JDK/JRE listed as:
-
Type/Copy/Paste: ls -a
-
jdk1.7.0_25
-
Type/Copy/Paste: ls -a
-
9Edit the system PATH file /etc/profile and add the following system variables to your system path. Use nano, gedit or any other text editor, as root, open up /etc/profile.
-
Type/Copy/Paste: sudo gedit /etc/profile
-
or
-
Type/Copy/Paste: sudo nano /etc/profile
-
Type/Copy/Paste: sudo gedit /etc/profile
-
10Scroll down to the end of the file using your arrow keys and add the following lines below to the end of your /etc/profile file:
-
Type/Copy/Paste:
JAVA_HOME=/usr/local/java/jdk1.7.0_25
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH
-
Type/Copy/Paste:
-
11Save the /etc/profile file and exit.
-
12Inform your Ubuntu Linux system where your Oracle Java JDK/JRE is located. This will tell the system that the new Oracle Java version is available for use.
-
Type/Copy/Paste: sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.7.0_25/bin/java" 1
- this command notifies the system that Oracle Java JRE is available for use
- this command notifies the system that Oracle Java JRE is available for use
-
Type/Copy/Paste: sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/local/java/jdk1.7.0_25/bin/javac" 1
- this command notifies the system that Oracle Java JDK is available for use
- this command notifies the system that Oracle Java JDK is available for use
-
Type/Copy/Paste: sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/local/java/jdk1.7.0_25/bin/javaws" 1
- this command notifies the system that Oracle Java Web start is available for use
- this command notifies the system that Oracle Java Web start is available for use
-
Type/Copy/Paste: sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.7.0_25/bin/java" 1
-
13Inform your Ubuntu Linux system that Oracle Java JDK/JRE must be the default Java.
-
Type/Copy/Paste: sudo update-alternatives --set java /usr/local/java/jdk1.7.0_25/bin/java
- this command will set the java runtime environment for the system
- this command will set the java runtime environment for the system
-
Type/Copy/Paste: sudo update-alternatives --set javac /usr/local/java/jdk1.7.0_25/bin/javac
- this command will set the javac compiler for the system
- this command will set the javac compiler for the system
-
Type/Copy/Paste: sudo update-alternatives --set javaws /usr/local/java/jdk1.7.0_25/bin/javaws
- this command will set Java Web start for the system
- this command will set Java Web start for the system
-
Type/Copy/Paste: sudo update-alternatives --set java /usr/local/java/jdk1.7.0_25/bin/java
-
14Reload your system wide PATH /etc/profile by typing the following command:
-
Type/Copy/Paste: . /etc/profile
- Note your system-wide PATH /etc/profile file will reload after reboot of your Ubuntu Linux system
-
Type/Copy/Paste: . /etc/profile
-
15Test to see if Oracle Java was installed correctly on your system. Run the following commands and note the version of Java:
-
16A successful installation of 32-bit Oracle Java will display:
-
Type/Copy/Paste: java -version
- This command displays the version of java running on your system
- This command displays the version of java running on your system
- You should receive a message which displays:
- java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b25)
Java HotSpot(TM) Server VM (build 23.1-b03, mixed mode)
- java version "1.7.0_25"
-
Type/Copy/Paste: javac -version
- This command lets you know that you are now able to compile Java programs from the terminal.
- This command lets you know that you are now able to compile Java programs from the terminal.
- You should receive a message which displays:
- javac 1.7.0_25
- javac 1.7.0_25
-
Type/Copy/Paste: java -version
-
17A successful installation of Oracle Java 64-bit will display:
-
Type/Copy/Paste: java -version
- This command displays the version of java running on your system
- This command displays the version of java running on your system
- You should receive a message which displays:
- java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_21-b21)
Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)
- java version "1.7.0_25"
-
Type/Copy/Paste: javac -version
- This command lets you know that you are now able to compile Java programs from the terminal.
- This command lets you know that you are now able to compile Java programs from the terminal.
- You should receive a message which displays:
- javac 1.7.0_25
- javac 1.7.0_25
-
Type/Copy/Paste: java -version
-
18Congratulations, you just installed Oracle Java on your Linux system. Now reboot your Ubuntu Linux system. Afterwards, your system will be fully configured for running and developing Java programs. Later on you may want to try compiling and running your own Java programs by following this article How to Create your First Java Program on Ubuntu Linux
Optional: How to enable Oracle Java in your Web Browsers
-
1To enable your Java plug-in in your web browsers you must make a symbolic link from the web browsers plug-in directory to the location of the Java plug-in included in your distribution of Oracle Java.
Important Note: I would urge caution when enabling Oracle Java 7 in your web browsers, due to the fact there have been many numerous security flaws and exploits. Essentially, by enabling Oracle Java 7 in your web browsers if a security flaw or exploit is discovered this is how the bad guys break in and compromise your system. For more information on security flaws and exploits in Java see the following website: Java Tester
Google Chrome
32-bit Oracle Java instructions:
-
1Issue the following commands.
-
Type/Copy/Paste: sudo mkdir -p /opt/google/chrome/plugins
- this will create a directory called /opt/google/chrome/plugins
- this will create a directory called /opt/google/chrome/plugins
-
Type/Paste/Copy: cd /opt/google/chrome/plugins
- this will change you into the google chrome plugins directory,make sure you are in this directory before you make the symbolic link
- this will change you into the google chrome plugins directory,make sure you are in this directory before you make the symbolic link
-
Type/Paste/Copy: sudo ln -s /usr/local/java/jdk1.7.0_25/jre/lib/i386/libnpjp2.so
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Google Chrome web browser
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Google Chrome web browser
-
Type/Copy/Paste: sudo mkdir -p /opt/google/chrome/plugins
64-bit Oracle Java instructions:
-
1Issue the following commands.
-
Type/Copy/Paste: sudo mkdir -p /opt/google/chrome/plugins
- this will create a directory called /opt/google/chrome/plugins
- this will create a directory called /opt/google/chrome/plugins
-
Type/Paste/Copy: cd /opt/google/chrome/plugins
- this will change you into the google chrome plugins directory,make sure you are in this directory before you make the symbolic link
- this will change you into the google chrome plugins directory,make sure you are in this directory before you make the symbolic link
-
Type/Paste/Copy: sudo ln -s /usr/local/java/jdk1.7.0_25/jre/lib/amd64/libnpjp2.so
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Google Chrome web browser
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Google Chrome web browser
-
Type/Copy/Paste: sudo mkdir -p /opt/google/chrome/plugins
Reminders:
-
1Note: Sometimes when you issue the above command you may receive a message which states:
- ln: creating symbolic link `./libnpjp2.so': File exists
- To correct this issue simply remove the previous symbolic link using the following command:
-
Type/Copy/Paste: cd /opt/google/chrome/plugins
-
Type/Copy/Paste: sudo rm -rf libnpjp2.so
- Make sure you are in the /opt/google/chrome/plugins directory before you issue the command
- ln: creating symbolic link `./libnpjp2.so': File exists
-
2Restart your web browser and go to Java Tester to test if Java is functioning in your web browser.
Mozilla Firefox
32-bit Oracle Java instructions:
-
1Issue the following commands.
-
Type/Paste/Copy: cd /usr/lib/mozilla/plugins
- this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it
- this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it
-
Type/Paste/Copy: sudo mkdir -p /usr/lib/mozilla/plugins
- this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link
- this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link
-
Type/Paste/Copy: sudo ln -s /usr/local/java/jdk1.7.0_25/jre/lib/i386/libnpjp2.so
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser
-
Type/Paste/Copy: cd /usr/lib/mozilla/plugins
64-bit Oracle Java instructions:
-
1Issue the following commands.
-
Type/Paste/Copy: cd /usr/lib/mozilla/plugins
- this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it
- this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it
-
Type/Paste/Copy: sudo mkdir -p /usr/lib/mozilla/plugins
- this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link
- this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link
-
Type/Paste/Copy: sudo ln -s /usr/local/java/jdk1.7.0_25/jre/lib/amd64/libnpjp2.so
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser
- this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser
-
Type/Paste/Copy: cd /usr/lib/mozilla/plugins
Reminders:
-
1Note: Sometimes when you issue the above command you may receive a message which states:
- ln: creating symbolic link `./libnpjp2.so': File exists
- To correct this issue simply remove the previous symbolic link using the following command:
-
Type/Copy/Paste: cd /usr/lib/mozilla/plugins
-
Type/Copy/Paste: sudo rm -rf libnpjp2.so
- Make sure you are in the /usr/lib/mozilla/plugins directory before you issue the command
- ln: creating symbolic link `./libnpjp2.so': File exists
-
2Restart your web browser and go to Java Tester to test if Java is functioning in your web browser.
相关推荐
ubuntu是基于debian开发的,centos是基于redhat开发的,因两者的包在不同的操作系统上面安装过程对环境要求略有不同,因此这里下载了ubuntu的安装包jdk-8u241-linux-x64.tar.gz
ubuntu下jdk的搭建,android开发环境的搭建
针对ubuntu系统上的安装jdk的版本,兼容性不错,
在Ubuntu12.04环境下安装JDK7
ubuntu下安装JDK,不需要人为的上传JDK
Ubuntu安装jdk环境 Ubuntu安装jdk环境 Ubuntu安装jdk环境
jdk1.8安装包,ubuntu.zip
linux系统中使用的jdk,版本为jdk1.7,适用java开发运行环境
官网下载不便,放在这里方便大家下载
JDK7 FOR Ubuntu Linux 64位操作系统 和操作说明 。 http://blog.csdn.net/qq_34256348/article/details/78365596
Hadoop2.7.2LIUNX集群(2)所需JDK1.8.gzHadoop2.7.2LIUNX集群(2)所需JDK1.8.gzHadoop2.7.2LIUNX集群(2)所需JDK1.8.gzHadoop2.7.2LIUNX集群(2)所需JDK1.8.gz
超详细在Ubuntu下安装JDK图文解析 我们选择的是jdk1.6.0_30版本。安装文件名为jdk-6u30-linux-i586.bin.
ubuntu的JDK的安装
1、ubuntu16.04、ubuntu18.04 或更高版本 安装openjdk7,此jdk7部署后,亲测有效,可正常编译android5.1/android6.0 等。 2、有详细的部署操作说明。
ubuntu配置jdk环境.适用于初学者,按着步骤一步配置。
ubuntu安装JDK 教程 亲自测试很好
2,jdk-170.tar.gz ——————————JDK1.7deb包 3,switch_java.sh -------------------------java其它版本切换 4,check_java.sh———————————版本核对 注意:使用命令接口切换时,需要将自己配置的...
ubuntu18.04安装jdk1.8
JDK1.7 Ubuntu16.04亲测可用,满足官网关闭1.7下载链接、apt-get无法下载用户
openjdk源码1