Setup Environment Variable for Tomcat

Step : 1 Right Click on My computer and Choose Propertis

Step : 2 From System Properties Dialog box got to Advance tab and click on Environment Variable Button

Step : 3 Go to System Variables and Click on New Button

Step : 4 Add System Variables 

• PATH

1. Variable Name : PATH
2. Variable Value : C:\Program Files\Java\jdk1.6.0_21\bin 

• CLASSPATH

1. Variable Name : CLASSPATH
2. Variable Value : C:\Tomcat 7.0\lib\servlet-api.jar 

• JAVA_HOME

1. Variable Name : JAVA_HOME
2. Variable Value : C:\Program Files\Java\jdk1.6.0_21\bin 

• CATALINA_HOME

1. Variable Name : CATALINA_HOME
2. Variable Value : C:\Tomcat 7.0\bin 

Note : Select location from your system. This is an example only