Java tutorial
package pt.iflow.servlets; import java.io.IOException; import javax.servlet.Servlet; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.StringUtils; import pt.iflow.api.licensing.LicenseService; import pt.iflow.api.licensing.LicenseServiceFactory; import pt.iflow.api.utils.Const; import pt.iflow.api.utils.Logger; import pt.iflow.api.utils.ServletUtils; import pt.iflow.api.utils.UserInfoInterface; public class LicenseServlet extends HttpServlet implements Servlet { private static final long serialVersionUID = -3473993017625529486L; public static final String LOCATION = "license"; public static final String METHOD_CHARGE = "charge"; public static final String PARAM_VOUCHER = "voucher"; /* * (non-Javadoc) * * @see javax.servlet.http.HttpServlet#service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) */ protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { UserInfoInterface userInfo = (UserInfoInterface) request.getSession().getAttribute(Const.USER_INFO); String method = request.getPathInfo(); if (method == null) { method = ""; } else if (method.indexOf("/") == 0) { method = method.substring(1); } if (StringUtils.equals(method, METHOD_CHARGE)) { String licData = request.getParameter(PARAM_VOUCHER); LicenseService licensing = LicenseServiceFactory.getLicenseService(); licensing.load(userInfo, licData); } else { Logger.warning(userInfo.getUtilizador(), this, "service", "Unknown method invocation: " + method); } String url = "http://" + Const.APP_HOST + ":" + Const.APP_PORT + Const.APP_URL_PREFIX + "Admin/Organization/license.jsp"; ServletUtils.sendEncodeRedirect(response, url); } }