Salve,
ho un problema con il web.xml. Utilizzo apache tomcat v8.0 con Eclipse Luna ed ho creato un Dynamic Web Project. In java Resources ho creato un package LogIn dove inserisco tutte le classi e le servlet inerenti al modulo di autenticazione. Nel dettaglio c'è la servlet LoginServlet che legge i parametri della pagina index.jsp e li visualizza nel browser. Ora se ho il web.xml il server apache non si avvia, diversamente funziona. Qualcuno sa aiutarmi? Grazie, di seguito posto la servlet, il web.xml e index.jsp
LoginServlet
index.jspcodice:package LogIn; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class LoginServlet */ @WebServlet(description = "Questa servlet riceve username e password dalla pagine index.jsp e controlla se le credenziali dell'utente", urlPatterns = { "/LoginServlet" }) public class LoginServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public LoginServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String username=request.getParameter("username"); String password=request.getParameter("password"); PrintWriter out=response.getWriter(); out.println("test valore username: "+username); out.println("test valore password: "+password); } }
web.xmlcodice:<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Benvenuto nel protocollo informatico</title> </head> <body> <form action="Login" method="post" name="autenticazioneUtenti"> <table> <tr> <td>Username</td> <td><input type="text" name="username"/></td> </tr> <tr> <td>Password</td> <td><input type="password" name="password"/></td> </tr> <tr> <td><input type="submit" name="login"/></td> <td><input type="button" name="reset"/></td> </tr> </table> </form> </body> </html>
codice:<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>Protocollo</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>LoginServlet</servlet-name> <servlet-class>LogIn.LoginServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/LoginServlet</url-pattern> </servlet-mapping> </web-app>
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Originariamente inviata da LeleFT
