如何在Ubuntu或Debian上安装Java JDK或JRE

题： 我如何能 在Ubuntu上安装Java 或Debian OS？

回答： 如果未安装Java，则您’当您执行java -version时，将得到以下错误消息。

# java -version
The program 'java'可以在以下软件包中找到：
 * gij-4.3
 * java-gcj-compat-headless
 * OpenJDK-6-jre-headless
 * cacao
 * gij-4.2
 * jamvm
 * kaffe
Try: 易于-get install

-su: java: command not found

搜索需要安装的Java软件包

在安装之前，您可能需要执行apt-cache搜索以找出所有以sun-java开头的可用软件包。

如下图所示，’将找到Java5和Java6 JDK和JRE相关的软件包。

# sudo 易于-get update

# 易于-cache search ^sun-java
sun-javadb-client - Java DB client
sun-javadb-common - Java DB common files
sun-javadb-core - Java DB core
sun-javadb-demo - Java DB demo
sun-javadb-doc - Java DB documentation
sun-javadb-javadoc - Java DB javadoc
sun-java5-bin - Sun Java(TM) Runtime Environment (JRE) 5.0 (architecture dependent files)
sun-java5-demo - Sun Java(TM) Development Kit (JDK) 5.0 demos and examples
sun-java5-doc - Sun JDK(TM) Documention -- integration installer
sun-java5-fonts - Lucida TrueType fonts (from the Sun JRE)
sun-java5-jdk - Sun Java(TM) Development Kit (JDK) 5.0
sun-java5-jre - Sun Java(TM) Runtime Environment (JRE) 5.0 (architecture independent files)
sun-java5-plugin - The Java(TM) Plug-in, Java SE 5.0
sun-java5-source - Sun Java(TM) Development Kit (JDK) 5.0 source files
sun-java6-bin - Sun Java(TM) Runtime Environment (JRE) 6 (architecture dependent files)
sun-java6-demo - Sun Java(TM) Development Kit (JDK) 6 demos and examples
sun-java6-doc - Sun JDK(TM) Documention -- integration installer
sun-java6-fonts - Lucida TrueType fonts (from the Sun JRE)
sun-java6-javadb - Java(TM) DB, Sun Microsystems' distribution of Apache Derby
sun-java6-jdk - Sun Java(TM) Development Kit (JDK) 6
sun-java6-jre - Sun Java(TM) Runtime Environment (JRE) 6 (architecture independent files)
sun-java6-plugin - The Java(TM) Plug-in, Java SE 6
sun-java6-source - Sun Java(TM) Development Kit (JDK) 6 source files

在Ubuntu上安装Java

执行 sudo 易于-get install sun-java6-jdk 如下所示在Ubuntu上安装Java 6 JDK。如果仅需要运行时环境，请安装 sun-java6-jre.

# sudo 易于-get install sun-java6-jdk
阅读包装清单... Done
建立依赖树
读取状态信息... Done
The following packages were automatically installed and are no longer required:
  linux-headers-2.6.28-11 linux-headers-2.6.28-11-generic
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  gsfonts-x11 java-common odbcinst1debian1 sun-java6-bin sun-java6-jre unixodbc
Suggested packages:
  equivs sun-java6-demo OpenJDK-6-doc sun-java6-source sun-java6-plugin ia32-sun-java6-plugin sun-java6-fonts
  libmyodbc odbc-postgresql libct1
The following NEW packages will be installed:
  gsfonts-x11 java-common odbcinst1debian1 sun-java6-bin sun-java6-jdk sun-java6-jre unixodbc
0 upgraded, 7 newly installed, 0 to remove and 68 not upgraded.
Need to get 54.5MB of archives.
After this operation, 161MB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get:1 http://us.archive.ubuntu.com jaunty/main java-common 0.30ubuntu4 [80.3kB]
Get:2 http://us.archive.ubuntu.com jaunty-updates/multiverse sun-java6-jre 6-16-0ubuntu1.9.04 [6421kB]
Get:3 http://us.archive.ubuntu.com jaunty/main odbcinst1debian1 2.2.11-16build3 [66.3kB]
Get:4 http://us.archive.ubuntu.com jaunty/main unixodbc 2.2.11-16build3 [295kB]
Get:5 http://us.archive.ubuntu.com jaunty-updates/multiverse sun-java6-bin 6-16-0ubuntu1.9.04 [29.1MB]
Get:6 http://us.archive.ubuntu.com jaunty-updates/multiverse sun-java6-jdk 6-16-0ubuntu1.9.04 [18.5MB]
Get:7 http://us.archive.ubuntu.com jaunty/main gsfonts-x11 0.21 [10.5kB]
Fetched 54.5MB in 4min 53s (186kB/s)
Preconfiguring packages ...
Selecting previously deselected package java-common.
(Reading database ... 142715 files and directories currently installed.)
Unpacking java-common (from .../java-common_0.30ubuntu4_all.deb) ...
Selecting previously deselected package sun-java6-jre.
Unpacking sun-java6-jre (from .../sun-java6-jre_6-16-0ubuntu1.9.04_all.deb) ...
Selecting previously deselected package odbcinst1debian1.
Unpacking odbcinst1debian1 (from .../odbcinst1debian1_2.2.11-16build3_i386.deb) ...
Selecting previously deselected package unixodbc.
Unpacking unixodbc (from .../unixodbc_2.2.11-16build3_i386.deb) ...
Selecting previously deselected package sun-java6-bin.
Unpacking sun-java6-bin (from .../sun-java6-bin_6-16-0ubuntu1.9.04_i386.deb) ...
sun-dlj-v1-1 license has already been accepted
Selecting previously deselected package sun-java6-jdk.
Unpacking sun-java6-jdk (from .../sun-java6-jdk_6-16-0ubuntu1.9.04_i386.deb) ...
sun-dlj-v1-1 license has already been accepted
Selecting previously deselected package gsfonts-x11.
Unpacking gsfonts-x11 (from .../gsfonts-x11_0.21_all.deb) ...
Processing triggers for doc-base ...
Processing 3 added doc-base file(s)...
Registering documents with scrollkeeper...
Processing triggers for man-db ...
Processing triggers for shared-mime-info ...
Setting up java-common (0.30ubuntu4) ...
Setting up odbcinst1debian1 (2.2.11-16build3) ...
Setting up unixodbc (2.2.11-16build3) ...
Setting up gsfonts-x11 (0.21) ...
设置sun-java6-bin（6-16-0ubuntu1.9.04）...
设置sun-java6-jre（6-16-0ubuntu1.9.04）...
设置sun-java6-jdk（6-16-0ubuntu1.9.04）...
Processing triggers for libc6 ...
ldconfig deferred processing now taking place

在安装过程中，您’将在以下窗口中提示您必须阅读“Java操作系统发行商许可证” and click 上 OK.

图：Sun Java许可条款-单击“确定”

阅读许可条款后，您将’将在以下窗口中提示您，您必须同意“license terms” 通过 clicking 上 Yes.

图：接受Java JDK / JRE许可条款-单击“是”

验证Java安装

最后，执行java -version并确保正确安装了Java，如下所示。

# java -version
java version "1.6.0_16"
Java(TM) SE Runtime Environment (build 1.6.0_16-b01)
Java HotSpot(TM) Server VM (build 14.2-b01, mixed mode)

如果您喜欢这篇文章，您可能还会喜欢..