操作系统：Ubuntu Server 7.1
Ubuntu下安装JDK
1.查询可以使用的JDK。
- root@ubuntu-163jsp:/# apt-cache search jdk
- libpg-java - Java database (JDBC) driver for PostgreSQL
- free-java-sdk - Complete Java SDK environment consisting of free Java tools
- icedtea-java7-bin - Java runtime based on OpenJDK
- icedtea-java7-demo - Java runtime based on OpenJDK
- icedtea-java7-doc - Icedtea Development Kit (JDK) documentation
- icedtea-java7-jdk - Java runtime based on OpenJDK
- icedtea-java7-jre - Java runtime based on OpenJDK
- icedtea-java7-plugin - Java plugin based on OpenJDK and gcjwebplugin
- icedtea-java7-source - Icedtea Development Kit (JDK) source files
- japitools - Java API compatibility testing tools
- kaffe - A JVM to run Java bytecode
- libcommons-lang-java - Extension of the java.lang package
- libcommons-launcher-java - cross platform java application launcher
- libicu4j-java - Library for unicode support and internalisation
- libitext-java - Java Library to generate PDF on the Fly
- librxtx-java - Full Java CommAPI implementation
- mmake - Makefile generator for Java programs
- usepackage - utility to manage environment variables from within dotfiles
- jde - JDEE, Java Development Environment for Emacs(en)
- 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-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-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-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-source - Sun Java(TM) Development Kit (JDK) 6 source files
- libc6-i686 - GNU C Library: Shared libraries [i686 optimized]
2.选择安装 sun-java6-jdk
apt-get install sun-java6-jdk
3.文件都装那里去了呢？
搜寻了一下发现文件安装在 :/usr/lib/jvm/java-6-sun-1.6.0.03 下了。
/usr/lib/jvm/java-6-sun 是/usr/lib/jvm/java-6-sun-1.6.0.03 的符号链接。
4.设置JAVA_HOME变量
编辑/etc/profile文件，添加如下内容：
- JAVA_HOME=/usr/lib/jvm/java-6-sun
- export JAVA_HOME
注意，保存后重新登录，这个环境变量就生效了。
Ubuntu下安装JDK完毕，安装Tomcat
1.查询可用的Tomcat
- root@ubuntu-163jsp:/# apt-cache search tomcat
- libservlet2.3-java - Servlet 2.3 and JSP 1.2 Java classes and documentation
- libservlet2.4-java - Servlet 2.4 and JSP 2.0 Java library.
- libservlet2.4-java-doc - Servlet 2.4 and JSP 2.0 Java documentation
- libservlet2.4-java-gcj - Servlet 2.4 and JSP 2.0 Java classes and documentation
- jspwiki - WikiWikiWeb clone written in Java
- libapache-mod-jk-doc - Documentation of libapache-mod-jk/libapache2-mod-jk packages
- libapache2-mod-jk - Apache 2 connector for the Tomcat Java servlet engine
- libtomcat5.5-java - Java Servlet engine -- core libraries
- tomcat5.5 - Servlet and JSP engine
- tomcat5.5-admin - Java Servlet engine -- admin & manager web interfaces
- tomcat5.5-webapps - Java Servlet engine -- documentation and example web applications
- webxml - Simple form-based generator/editor of Tomcat's web.xml files
2.安装tomcat5.5
apt-get install tomcat5.5
如果你要和apache2整合，可以把mod_jk安装上。
apt-get install libapache2-mod-jk
3.运行tomcat
tomcat的安装文件在 /usr/share/tomcat5.5里。
运行 /usr/share/tomcat5.5/bin/startup.sh，tomcat就启动了。
这个端口竟然是8180，停止也出现错误还是自己下载安装吧。
提示：其实jdk和tomcat,都可以不用ubuntu提供的包，sun的网站有linux的jdk，apache也有tomcat，直接解压
tomcat就可以用了，JAVA_HOME变量别忘了。
这样就完成了Ubuntu下安装JDK和Tomcat。
