Exception Report:annot allocate servlet instance for path

mary · #1 (**permalink**) 08-01-2007, 07:09 AM

I have written a html page to invoke a servlet named logtest1

and i have created that logtest1.java file in the following path.
c:/apache tomcat/webapps/root/web-inf/classes/logtest1.java

in the html file, i gave the path as

Code:

<form name=log method=post action= "/servlet/logtest1">

But, when I click on submit button, I get one servlet exception as

Code:

A Servlet Exception Has Occurred
Exception Report:
javax.servlet.ServletException: Cannot allocate servlet instance for path 
/servlet/logtest1
java.lang.IllegalAccessException: logtest1"

why?

Heather · #2 (**permalink**) 08-05-2007, 05:54 AM

can you paste more code?

mary · #3 (**permalink**) 08-07-2007, 04:44 PM

The HTML code as follows:

Code:

<html>
<head>
<title>Login Screen</title>
</head>
<body bgcolor="pink">
<h1 align=center>Login Screen</h1>
<hr size=2 width=100%>
<br><br><br><br><br><br><br><br><br>
<form name="log" method="post" action="/servlet/logtest1">
<table borer=1 align=center>
<tr>
<td>Userid:</td>
<td><input type=text name=userid ></td>
</tr>
<tr>
<td>Password:</td>
<td><input type=password name=psw></td>
</tr>
<tr><td><input type=submit name='login'width=05 value='Login'></td></tr>
</table>
</body>
</html>

The servlet code as follows:

Code:

import java.lang.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.http.HttpSession;
import java.util.*;
import java.util.Properties;
import java.io.*;
import java.text.*;


class logtest1 extends HttpServlet
{
PrintWriter out=null;

public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException
{
response.setContentType("text/html");
out = response.getWriter();
String fileName = new String();
String aDataString = new String();
String user=request.getParameter("userid");
fileName = "MyFileName.dat";
//aDataString = "I want to write this string to a file.";
FileWriter fw = new FileWriter(fileName);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter outFile = new PrintWriter(bw);
outFile.println(aDataString);
System.out.println("File has been created successfully");
outFile.close();
}
//System.out.println("out of dopost method");
}

sunnyvijaya · #4 (**permalink**) 08-09-2007, 11:10 AM

give the path in web.xml of the
<servlet>
<servlet-name>logtest1 </servlet-name>
<serlvet-class>logtest1 <serlvet-class>
</servlet>

and <servletmapping> also

goodguy052 · #5 (**permalink**) 11-05-2007, 07:14 PM

First of all, in the path you have shown c:/apache tomcat/webapps/root/web-inf/classes/logtest1.java the file name should be logtest1.class, not logtest1.java