package org.enis.gi3.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.enis.gi3.bean.CalculatorLocal;
public class CalculatorActionServlet extends HttpServlet
{
private CalculatorLocal calculator;
/**
* Injection de l'EJB
*/
@EJB(name = "calculator")
public void setCalculator(CalculatorLocal calculator)
{
this.calculator = calculator;
}
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
doit(req, resp);
}
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
doit(req, resp);
}
/**
* Utiliser la Calculatrice pour l'addition
*/
protected void doit(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
int op1;
int op2;
try {
op1 = Integer.parseInt(req.getParameter("op1"));
op2 = Integer.parseInt(req.getParameter("op2"));
} catch (NumberFormatException nfe)
{
printMessage(resp, "Seulement des entiers!!");
return;
}
String action = req.getParameter("action");
System.out.println("Utiliser l'EJB calculatorire pour " + action + " de " + op1 + " et " + op2);
int result = 0;
if (action.equals("Add"))
result = calculator.add(op1, op2);
else if (action.equals("Subtract"))
result = calculator.subtract(op1, op2);
System.out.println("Resultat retournee du bean = " + result);
printMessage(resp, "Reponse = " + result);
//execution: http://localhost:8080/jboss-ejb3-webapp/index.html
}
private void printMessage(HttpServletResponse resp, String msg) throws IOException
{
resp.setContentType("text/html");
PrintWriter writer = resp.getWriter();
writer.println("<html>");
writer.println("<body>");
writer.println("<h1> " + msg + "</h1>");
writer.println("</body");
writer.println("</html>");
}
}
EJB3.0_Servlet.rar （9个子文件） 
EJB3.0_Servlet webapp src main webapp WEB-INF 
web.xml 829B
index.html 348B java org enis gi3 servlet CalculatorActionServlet.java 2KB build.xml 5KB ear META-INF application.xml 555B ejbapp src main java org enis gi3 bean Calculator.java 119B CalculatorLocal.java 85B CalculatorBean.java 406B CalculatorRemote.java 87B资源评论
