Servlet code is normal java code and is usually compiled in the building process. What build tool are you using and what errors are you seeing?

If you are new to java, I recommending googling for some general tutorials first.

Well, the servlet api has to be available when you compile, no matter how you do it

Ant javac compile is easy too:

<?xml version="1.0" encoding="UTF-8"?>

<project name="com.ybxiang.nms.manager" default="exportAPI" basedir=".">   

    <property name="jboss.home" value="D:/java/jboss-as-7.2.0.Final"/>

    <property name="jboss.conf.dir" value="D:/java/jboss-as-7.2.0.Final/standalone/configuration"/>

    <property name="war.source.dir" value="${basedir}/ybxiang-forum-war/src"/>

    <property name="war.classes.dir" value="${basedir}/ybxiang-forum-war/build/classes"/>

    <property name="ybxiang-forum-ejb-classes" value="${basedir}/ybxiang-forum-ejb/build/classes" />   

    <property name="jboss-ejb-api_3.1_spec" value="D:/java/jboss-as-7.2.0.Final/modules/system/layers/base/javax/ejb/api/main/jboss-ejb-api_3.1_spec-1.0.2.Final.jar"/>

    <property name="jboss-jsf-api_2.1_spec" value="D:/java/jboss-as-7.2.0.Final/modules/system/layers/base/javax/faces/api/main/jboss-jsf-api_2.1_spec-2.1.18.Final.jar"/>

    <property name="jboss-servlet-api_3.0_spec" value="D:/java/jboss-as-7.2.0.Final/modules/system/layers/base/javax/servlet/api/main/jboss-servlet-api_3.0_spec-1.0.2.Final.jar"/>

    <target name="war.recompile">

        <delete dir="${war.classes.dir}/com"/>

        <javac srcdir="${war.source.dir}" destdir="${war.classes.dir}"  >

            <classpath>

                <!-- http://ant.apache.org/manual/using.html -->

                <pathelement location="${ybxiang-forum-ejb-classes}"/>

                <pathelement location="${jboss-ejb-api_3.1_spec}"/>

                <pathelement location="${jboss-jsf-api_2.1_spec}"/>

                <pathelement location="${jboss-servlet-api_3.0_spec}"/>

            </classpath>

            <!--

            <include name="**/*.java"/>

            <exclude name="**/Example.java"/>

            -->

        </javac>

    </target>

</project>

you have too much to learn!

I think what Xiang is trying to say (and actually myself a few posts back) is that perhaps you would need to find some general java/web application tutorials first so that you can ask more specific and relevant questions. This is the forums for JBoss AS and your questions are a bit vague and general. Have you tried http://www.javaranch.com/ ? (it's more professional than the front page might indicate) ;-)

Agree with Nicklas.

Suggestion:

You must know what java is:

     Here is the turorial: http://www.avajava.com/tutorials/categories/java-basics

(1) Learn how to use IDE(for example, eclipse) to develop web applications at first.

     Here is the turorial: http://www.avajava.com/tutorials/categories/eclipse

(2) Learn Servlet/JSP/JSF knownedge:

     http://www.avajava.com/tutorials/categories/servlets

     http://www.avajava.com/tutorials/categories/jsps

(3) Study the web container at last:

     http://www.avajava.com/tutorials/categories/tomcat

If you speak English, maybe job of coding is not suitable for you.

If you speak Chinese, there are too many books/web pages discussing java, tomcat, jsp, servlet. Yes, too many!