file uploading problem ( greater than 2MB)

[Sanjib Pal]

Hi,

I have a big problem when uploading a file greater than 2mb.
When I tried to upload a file greater than 2mb, the browser connection resets instantly, giving an error
Error: 101 ( net::ERROR_CONNECTION_RESET): The connection was reset

In my tomcat's server.xml I have configured the Connector as

<Connector port="8080" protocol="HTTP/1.1" 
               connectionTimeout="100000" 
               redirectPort="8443" disableUploadTimeout="false" maxPostSize="-1" />

the memory of jvm is as

-Xms512m -Xmx2560m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m -XX:MaxPermSize=256m -XX:+DisableExplicitGC

I am using spring framework.

the bean configuration is as

<bean id="multipartResolver" 
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver" 
    p:maxUploadSize="20485760" />

and my java code is as

public ModelAndView Load(HttpServletRequest request, HttpServletResponse response, Object command) throws Exception {
        System.out.println("Load");
        String fileName = "";
        int counter = 0;
        String newFileName;

        if ((request instanceof MultipartHttpServletRequest)) {
            String tempDirPath = System.getProperty("catalina.base") + File.separator;
            String serverpath = tempDirPath + "webapps" + File.separator + "test_upload" + File.separator;
            String baseDir = serverpath;
            MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
            MultipartFile file = multipartRequest.getFile("uploaded");
            String dirName = "uploaded/";
            String destinationDir = baseDir + dirName;
            File destination = new File(destinationDir);
            if (!destination.exists()) {
                destination.mkdirs();
            }
            fileName = file.getOriginalFilename().toString();
            destination = new File(destinationDir + "/" + file.getOriginalFilename());
            while (destination.exists()) {
                counter++;
                int firstIndx = fileName.lastIndexOf("\\");
                int lastIndx = fileName.lastIndexOf(".");
                String filename = fileName.substring(firstIndx + 1, lastIndx).toUpperCase();
                String extsn = fileName.substring(lastIndx, fileName.length());
                System.out.println("filename>>>>" + filename + "extsn>>>>>" + lastIndx + "fstindx" + firstIndx + "extsn" + extsn);
                newFileName = filename + "_" + counter + extsn;
                destination = new File(destinationDir + "/" + newFileName);
            }
            System.out.println("destination dir: " + destination);
            file.transferTo(destination);
        }
        return new ModelAndView("home");
    }

Please give me a suggestion to solve this problem.

Thanks,
Sanjib