Can't make a simple HelloWorld jetty webapp
Question
I am trying to deploy a simple Helloworld webapp in my jetty v9.1. I am having problems when i am trying to access the servlet, I recive an error message:
HTTP ERROR 404
Problem accessing /HelloServlet/servlet. Reason:
Not Found
I know i am doing something wrong here but i can't tell what.
here is my file structure from Webbapp in jetty:
webapps
+example
+hello
hello.xml index.html +WEB-INF
web.xml +classes
HelloServlet.class
index.html +WEB-INF (reprezent a folder,WEB-INF and a file index.html, in same folder hello)
here is my web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>Example</display-name>
<!-- Declaraa existenta unui servlet. -->
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<!-- Map URLs to that servlet. -->
<servlet-mapping>
<servlet-name>servlet</servlet-name>
<url-pattern>/servlet</url-pattern>
</servlet-mapping>
HelloServlet.java
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
public class HelloServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
String input=request.getParameter("input");
PrintWriter out=response.getWriter();
out.println("<html>");
out.println("<body>");
out.println("The parameter input was \" "+input+"\" .");
out.println("</body");
out.println("</html");
}
protected void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException {
String field=request.getParameter("field");
PrintWriter out=response.getWriter();
out.println("<html>");
out.println("<body>");
out.println("You entered \" "+field+"\" into the text box.");
out.println("</body>");
out.println("</html>");
}
}
index.html
<html>
<head>
<title>Example Web Application</title>
</head>
<body>
<p>This is a static document with a form in it.</p>
<form method="POST" action="servlet">
<input name="field" type="text" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
hello.xml
<<?xml version="1.0" encoding="ISO-8859-1"?>
<<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
<<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<Set name="contextPath">/hello</Set>
<Set name="extractWAR">false</Set>
<Set name="copyWebDir">false</Set>
<Set name="defaultsDescriptor"><Property name="jetty.home" default="."/>/etc/webdefault.xml</Set>
<Call name="setAttribute">
<Arg>org.eclipse.jetty.websocket.jsr356</Arg>
<Arg type="Boolean">true</Arg>
</Call>
<Get name="securityHandler">
<Set name="loginService">
<New class="org.eclipse.jetty.security.HashLoginService">
<Set name="name">Test Realm</Set>
<Set name="config"><SystemProperty name="jetty.base" default="."/>/etc/realm.properties</Set>
</New>
</Set>
<Set name="authenticator">
<New class="org.eclipse.jetty.security.authentication.FormAuthenticator">
<Set name="alwaysSaveUri">true</Set>
</New>
</Set>
<Set name="checkWelcomeFiles">true</Set>
</Get>
</Configure>
2 answers
solution1
3 2013-11-26 07:18:33
In your web.xml , you specified the url-pattern as /servlet/* , meaning that the prefix you need to use is servlet/ , not HelloServlet/ :
http://localhost:8080/servlet/servlet
(And while it can be instructional to write a servlet by hand, for real-world projects it's better to go with a system like Spring that already has all of the plumbing taken care of for you.)
solution2
0 ACCPTED 2013-11-28 10:32:28
I have managed to find a solution after all and my problem is fixed. I just started the server from Intellij Idea and everything works perfectly.
Thank you all for your help.
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