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Posted to dev@tomcat.apache.org by bu...@apache.org on 2004/10/06 04:50:04 UTC
DO NOT REPLY [Bug 31556] New: -
getResourceAsStream caches a file but fails to note that it has been updated
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http://issues.apache.org/bugzilla/show_bug.cgi?id=31556
getResourceAsStream caches a file but fails to note that it has been updated
Summary: getResourceAsStream caches a file but fails to note that
it has been updated
Product: Tomcat 5
Version: 5.0.28
Platform: PC
OS/Version: Windows 9x
Status: NEW
Severity: Normal
Priority: Other
Component: Catalina
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: kent@cpttm.org.mo
1. The sample servlet (see below) calls getResourceAsStream to read the first
line of a text file (eg, "abc") and outputs it.
2. I update the text file to change its content (eg, "def").
3. Reload the web page but it is still displaying the old file content ("abc").
It means the servlet is not getting the new file content.
4. However, there is a twist. If I save the file again (eg, add a space, delete
the space and save again) and reload the web page, then it will display the new
file content ("def").
The sample servlet is shown below. The text file is /WEB-INF/test.txt.
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloServlet extends HttpServlet {
protected void doGet(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
PrintWriter writer = response.getWriter();
BufferedReader reader =
new BufferedReader(
new InputStreamReader(
getServletContext().getResourceAsStream(
"/WEB-INF/test.txt")));
try {
writer.println(reader.readLine());
} finally {
reader.close();
}
}
}
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