I am following an exercise from HFJS and encounter compile errors.
I have two
servlet files named BeerSelect.java and BeerExpert.java
I create a development like this:
c:\MyProjects\beerV1
--------------------classes
---------------------------com
---------------------------example
---------------------------model
--------------------web
--------------------src
-----------------------com
--------------------------example
--------------------------model (BeerExpert.java)
--------------------------web (BeerSelect.java)
c:\Myprojects\beerV1\src\com\example\web\BeerSelect.java
c:\Myprojects\beerV1\src\com\example\model\BeerExpert.java
1) I compiled BeerExpert.java from command prompt:
c:\myprojects\beerv1> javac -classpath "c:\program files\tomcat 5.0\common\lib\servlet-api.jar:classes: ." -d classes src\com\example\model\BeerExpert.java
it created BeerExpert.class successfully in c:\myprojects\beerV1\classes\com\example\model
2) When compiled BeerSelect.java
c:\myprojects\beerv1> javac -classpath "c:\program files\tomcat 5.0\common\lib\servlet-api.jar:classes: ." -d classes src\com\example\web\BeerSelect.java
I got 11 errors.
The error message indicates, such as:
src\com\example\web\BeerSelect.java:3: package com.example.model does not exist"
import com.example.model.*;
^
src\com\example\web\BeerSelect.java:3: package javax.servlet does not exist"
and so on...
Thanks.
==================================================
//BeerSelect.java
package com.example.web;
import com.example.model.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class BeerSelect extends HttpServlet
{
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("Beer Selection Advice <br>");
String c = request.getParameter("color");
/* instantiate the BeerExpert class and call getBrands() */
BeerExpert be = new BeerExpert();
List result = be.getBrands(c);
Iterator it = result.Iterator();
while (it.hasNext()){
out.print("<br>try: " + it.next());
}
}
}
==============================================
//BeerExpert.java
package com.example.model;
import java.util.*;
public class BeerExpert{
public List getBrands(String color){
List brands = new ArrayList();
if (color.equals("amber")){
brands.add("Jack Amber");
brands.add("Red Moose");
}
else{
brands.add("Jail Pale Ale");
brands.add("Gout Stout");
}
return(brands);
}
}