Загрузка файлов на сервер в JSP

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
 
public class UploadService {
 
    private static final String NEWLINE;
    static {
        String seporator = System.getProperty("line.separator");
 
        if (seporator == null)
            seporator = "\n";
 
        NEWLINE = seporator;
    }
 
    private static final String PREFIX = "--";
 
    private String url;
 
    
    
    public UploadService(String url) {
        super();
        this.url = url;
    }
 
    void uploadFile(String name, String fileName, String mime, InputStream source) throws MalformedURLException, IOException {
        String boundary = createBoudary();
        
        
        HttpURLConnection httpcon = (HttpURLConnection) ((new URL(url).openConnection()));
        
        httpcon.setDoInput(true);
        httpcon.setDoOutput(true);
        httpcon.setRequestMethod("POST");
        httpcon.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
        
        httpcon.connect();
        
        OutputStream out =  httpcon.getOutputStream();
        
        out.write(PREFIX.getBytes());
        out.write(boundary.getBytes());
        out.write(NEWLINE.getBytes());
        
        String header = "Content-Disposition: form-data; name=\"" + name + "\"; filename=\"" + fileName + "\""+NEWLINE;
        out.write(header.getBytes());
        header = "Content-Type: " + mime + NEWLINE;
        out.write(header.getBytes());
        out.write(NEWLINE.getBytes());
        
        int c;
        while ((c=source.read())>=0) {
            out.write(c);
        }
        out.write(NEWLINE.getBytes());
        
        out.write(PREFIX.getBytes());
        out.write(boundary .getBytes());
        out.write(PREFIX.getBytes());
        out.write(NEWLINE.getBytes());
 
        InputStream is = httpcon.getInputStream();
 
        out.flush();
        out.close();
        is.close();
    }
 
    private String createBoudary() {
        return "---------------------------" + System.nanoTime();
    }
}