To start TOMCAT server using build ant tool

<property name="tomcat.home" value="D:/Tomcat 5.5/">
                </property>

<target name="tomcat-start">
        <java jar="${tomcat.home}/bin/bootstrap.jar" fork="true">
                <jvmarg value="-Dcatalina.home=${tomcat.home}"/>
            </java>
        </target>