Try doGet, not post
On Oct 29, 10:20 am, jyoerye <angel.like...@gmail.com> wrote:
> I have a project in java with a My SQL data base which I need to
> transfer to Google App engine.
>
> I started with a simple example online:
> I created guestbook.jsp and SignGuestbookServlet,But I get this error
> Http 404: /sign not found:
>
> I am pasting the necessary files here:
> SignGuestbookServlet.java
> package guestbook;
>
> import java.io.IOException;
> import java.util.logging.Logger;
> import javax.servlet.http.*;
> import com.google.appengine.api.users.User;
> import com.google.appengine.api.users.UserService;
> import com.google.appengine.api.users.UserServiceFactory;
>
> public class SignGuestbookServlet extends HttpServlet {
> /**
> *
> */
> private static final long serialVersionUID = 1L;
> private static final Logger log =
> Logger.getLogger(SignGuestbookServlet.class.getName());
>
> public void doPost(HttpServletRequest req, HttpServletResponse
> resp)
> throws IOException {
> UserService userService = UserServiceFactory.getUserService();
> User user = userService.getCurrentUser();
>
> String content = req.getParameter("content");
> if (content == null) {
> content = "(No greeting)";
> }
>
> resp.getWriter().println("Hello,this is jyo world");
>
> /* if (user != null) {
> log.info("Greeting posted by user " + user.getNickname() +
> ": " + content);
> } else {
> log.info("Greeting posted anonymously: " + content);
> }*/
> resp.sendRedirect("/guestbook.jsp");
> }
>
> }
>
> guestbook.jsp
>
> <%@ page contentType="text/html;charset=UTF-8" language="java" %>
> <%@ page import="com.google.appengine.api.users.User" %>
> <%@ page import="com.google.appengine.api.users.UserService" %>
> <%@ page import="com.google.appengine.api.users.UserServiceFactory" %>
>
> <html>
> <body>
>
> <%
> UserService userService = UserServiceFactory.getUserService();
> User user = userService.getCurrentUser();
> if (user != null) {
> %>
> <p>Hello, <%= user.getNickname() %>! (You can
> <a href="<%= userService.createLogoutURL(request.getRequestURI())
> %>">sign out</a>.)</p>
> <%
> } else {
> %>
> <p>Hello!
> <a href="<%= userService.createLoginURL(request.getRequestURI())
> %>">Sign in</a>
> to include your name with greetings you post.</p>
> <%
> }
> %>
>
> <form action="/sign" method="post">
> <div><textarea name="content" rows="3" cols="60"></textarea></div>
> <div><input type="submit" value="Post Greeting" /></div>
> </form>
>
> </body>
> </html>
>
> web.xml
>
> <?xml version="1.0" encoding="utf-8"?>
> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns="http://java.sun.com/xml/ns/javaee";
> xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
> xsi:schemaLocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
> version="2.5">
> <servlet>
> <servlet-name>sign</servlet-name>
> <servlet-class>guestbook.SignGuestbookServlet</servlet-class>
> </servlet>
> <servlet-mapping>
> <servlet-name>sign</servlet-name>
> <url-pattern>/sign</url-pattern>
> </servlet-mapping>
> <welcome-file-list>
> <welcome-file>guestbook.jsp</welcome-file>
> </welcome-file-list>
> </web-app>
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