I try to figure out a strange but reproduceable error: Using Apache and Tomcat under windows and maybe linux.
After uploading a file to a temporary dir and renaming (moving) it to a apache accessible folder i have strange problems...
If i upload a image with the attached servlet and after it accessing the image with apache i must wait some seconds to get a succesful renameTo. the problem is that if i don't create the temporary image file with java the renameTo always succeeds. but the servlet should
have file upload behaviour...
maybe its the FileServletWrapper but uploading multiple times without accessing the image with apache there is no problem!
ps. The FileServletWrapper is only available as class code... Any Suggestions?
Thanks Peter
<code> import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.*;
public final class FileServlet
extends HttpServlet {static public final String TARGET = "/export/wwwdoc/test.jpg";
public void service(HttpServletRequest req, HttpServletResponse resp) throws IOException {
FileServletWrapper request = new FileServletWrapper(req,
new File("/temp"));
File source = null;
if(request.getFileParameter("file") != null) {
source = request.ucdGetFileParameter("file").getFile();
}
PrintWriter writer = resp.getWriter();
writer.write("<HTML>");
writer.write("<BODY>");
writer.write("<FORM NAME=\"main\" ACTION=\"http://127.0.0.1/fileservlet\"; METHOD=\"post\" ENCTYPE=\"multipart/form-data\">");
writer.write("<INPUT TYPE=\"file\" NAME=\"file\"/>");
writer.write("<INPUT TYPE=\"submit\" VALUE=\"upload\"/>");
writer.write("<hr>");
if(source != null) {
File target = new File(TARGET);
if(target.exists()) {
writer.write("Target file exists<br>");
if(!target.delete()) {
writer.write("Target file delete failed:" + target + "<br>");
return;
}
}
if(source.renameTo(target)) {
writer.write("rename succeeded<br>");
}
else {
writer.write("rename failed<br>");
}
}
writer.write("</FORM>");
writer.write("</BODY>");
writer.write("</HTML>");
}
}
</code>
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