infact what u coded was a modified version of JASON HUNTER'S code in
O'REILLY edition book. i too did try the same example, which was supposed
to
remove all <blink> tags in a html before passing it to the client ... but i
couldn't succeed.
as author said, in javawebserver2.0 admnistration tool, i made an entry for
that servlet to deblink;FILE. where 'FILE' is a SUN's servlet, which will
be
handling requests during passing html files to the client requsets...
any help will be appreciated from my side also friends....
thanx in advance...
regards
ks
-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[EMAIL PROTECTED]]
Sent: Saturday, April 14, 2001 12:00 AM
To: [EMAIL PROTECTED]
Subject: java sertvlet chaining
The problem is:
I just started working on java Servlets with java web server2.0 and working
on
servlet chaining.
The purpose of chaining is to remove all the <h1></h1> tags from the *.html
files.
*.html files should pass through Deblink servlet(code is given below).For
this
I made all reqiured additions in servlet aliases of java web server
administration.
But when i run any *.html file it is giving me following error:
500 Internal Server Error
The servlet named Deblink in a servlet chain at the requested URL
http://localhost:8082/name.html
reported this exception: can't mix text and binary input. Please report
this
to the administrator of the web server.
java.lang.IllegalStateException: can't mix text and binary input at
java.lang.Throwable.(Compiled Code) at java.lang.Exception.(Compiled Code)
at
java.lang.RuntimeException.(RuntimeException.java:50) at
java.lang.IllegalStateException.(IllegalStateException.java:48) at
com.sun.server.servlet.http.HttpRequest.getInputStream(Compiled Code) at
com.sun.server.http.stages.FilterManager.chainServlet(FilterManager.java:218
)
at com.sun.server.http.stages.FilterManager.update(Compiled Code) at
com.sun.server.http.HttpServiceResponse.update(Compiled Code) at
com.sun.server.servlet.http.HttpOutputStream.flushBytes(Compiled Code) at
com.sun.server.servlet.http.HttpOutputStream.flush(Compiled Code) at
java.io.OutputStreamWriter.flush(Compiled Code) at
java.io.PrintWriter.flush(Compiled Code) at
com.sun.server.servlet.http.HttpResponse.finish(Compiled Code) at
com.sun.server.http.HttpServiceHandler.handleRequest(Compiled Code) at
com.sun.server.http.HttpServiceHandler.handleRequest(Compiled Code) at
com.sun.server.HandlerThread.run(Compiled Code)
****************************************************************************
******
The error come with the line : BufferedReader in=req.getReader();(see
code)
****************************************************************************
******
I wrote the following code :
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class Deblink extends HttpServlet
{
public void doPost(HttpServletRequest req,HttpServletResponse res)
throws
IOException,ServletException
{
doGet(req,res);
}
public void doGet(HttpServletRequest req,HttpServletResponse res) throws
IOException,ServletException
{
String contentType=req.getContentType();
if(contentType==null) return;
res.setContentType(contentType);
PrintWriter out=res.getWriter();
BufferedReader in=req.getReader();
String line=null;
while((line=in.readLine())!=null)
{
line=replace(line,"<h1>"," ");
line=replace(line,"</h1>"," ");
out.println(line+"mssss");
}
}
public String replace(String old,String toReplace,String newString)
{
int index=0;
while((index=old.indexOf(toReplace))>=0)
{
old=old.substring(0,index)+
newString+
old.substring(index+toReplace.length());
index+=newString.length();
}
return old;
}
}
****************************************************************************
********
please tell me the solution.Thanx
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