Moin Zusammen
Ich möchte aus einem HTML-Formular drei Parameter auslesen. Habe dazu ein HTML-File, ein Java-File geschrieben. Das web.xml-File habe ich auch angepasst. Nur leider funktioniert es nicht. Wenn ich das Formular abschicke, bekomme ich immer eine Fehlermeldung, dass das angegebene Servlet nicht 'available' ist. Woran kann das denn liegen?
Gruß
Padde
PS: Anbei noch die drei Quellcode:
ThreeParamsForm.html
Code:
<!DOCTYPE HTML PUBLIC "W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>
Collecting Three Parameters
</title>
</head>
<body bgcolor="#fdf5f6">
<h1 align="center">
Collecting Three Parameters
</h1>
<form action="/servlet/ThreeParams">
First Parameter: <input type="text" name="param1">
Second Parameter: <input type="text" name="param2">
Third Parameter: <input type="text" name="param3">
<center>
<input type="submit">
</center>
</form>
</body>
</html>ThreeParams.java
Code:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ThreeParams extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
// Titel bestimmen
String title = "Reading Three Request Parameters";
String docType = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">";
// html-Seite erzeugen
out.println(docType);
out.println("<html>");
out.println("<head>");
out.println("<title>" + title + "</title>");
out.println("</head>");
out.println("<body bgcolor=\"#fdf5f6\">");
out.println("<h1 align=\"center\">" + title + "</h1>");
out.println("<ul>");
out.print("[*][b]param1[/b]:");
out.println(request.getParameter("param1"));
out.print("[*][b]param2[/b]:");
out.println(request.getParameter("param2"));
out.print("[*][b]param3[/b]:");
out.println(request.getParameter("param3"));
out.println("[/list]");
out.println("</body>");
out.println("</html>");
}
}web.xml
Code:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app >
<servlet>
<servlet-name>ThreeParams</servlet-name>
<servlet-class>ThreeParams</servlet-class>
</servlet>
<servlet-name>ThreeParams</servlet-name>
<url-pattern>/servlet/ThreeParams</url-pattern>
</servlet-mapping>
</web-app>
???
