在ubuntu上部署JDK+Tomcat+Mysql+eclipse详解
1、安装JDK：
$sudo tar xzvf jdk-7u4-linux-i586.tar.gz -C /usr/local/ cd /usr/local/ $sudo ln -s jdk1.7.0_04/ jdk1.7
修改配置文件/etc/profile，添加环境变量：
export JAVA_HOME=/usr/local/jdk1.7
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
测试，会显示出JDK的版本信息：
java �Cversion
2、安装Tomcat：
sudo tar xzvf apache-tomcat-7.0.30.tar.gz -C /usr/local/ cd /usr/local/ sudo ln -sv apache-tomcat-7.0.30/ tomcat
启动：
sudo bin/catalina.sh start
我在启动时，报以下错误信息：
Neitherthe JAVA_HOME nor the JRE_HOME environment variable is defined
At least one of these environment variable is needed to run this program
解决方法：
修改配置文件setclasspath.sh，添加环境变量:
sudo vim bin/setclasspath.sh
export JAVA_HOME=/usr/local/jdk1.7
export JRE_HOME=/usr/local/jdk1.7/jrediq
启动结果：
$ sudo bin/catalina.sh start Using CATALINA_BASE: /usr/local/apache-tomcat-7.0.30 Using CATALINA_HOME: /usr/local/apache-tomcat-7.0.30 Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.30/temp Using JRE_HOME: /usr/local/jdk1.7/jre Using CLASSPATH: /usr/local/apache-tomcat-7.0.30/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.30/bin/tomcat-juli.jar侧首测试，显示出来tomcat的界面，即成功：
http://192.168.6.233:8080
添加用户：
编辑tomcat-users.xml添加如下内容: vim /usr/local/tomcat/conf/tomcat-users.xml <role rolename="manager-gui"/> <user username="tomcat" password="s3cret" roles="manager-gui"/>
3、安装Mysql：
sudo apt-get install libmysql-java mysql-server-5.5
中间会提示：让输入数据库密码。
4、安装ecplise:
sudo tar zxvf eclipse-jee-juno-SR2-linux-gtk.tar.gz -C /usr/local cd /usr/local/eclipse
测试：
sudo ./eclipse
此时报错，显示：
Eclipse:
A Java Runtime Environment (JRE) or Java Development Kit (JDK)
must be available in order to run Eclipse. No Java virtual machine
was found after searching the following locations:
/usr/local/eclipse/jre/bin/java
java in your current PATH
解决方法：
sudo /usr/local/eclipse/eclipse -vm /usr/local/jdk1.7/bin/ #指定/usr/local/jdk1.7/bin启动
但是，此时又报错：
Can't load library: /root/.swt/lib/linux/x86/libswt-pi-gtk-4236.so
Can't load library: /root/.swt/lib/linux/x86/libswt-pi-gtk.so
解决方法：
apt-get install libswt-gtk-3-jni libswt-gtk-3-java
再次启动：
sudo /usr/local/eclipse/eclipse -vm /usr/local/jdk1.7/bin/ OK！！！