0

このコードを書いたウェブサイトのリンクから画像を保存しようとしましたが、これは機能しません..plzはこれを行うのを手伝ってくれます

public void imageshow(String linkText) {

    try {

        URL url = new URL(linkText);
        InputStream in = new BufferedInputStream(url.openStream());
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] buf = new byte[4 * 1024];
        int n = 0;
        while (-1 != (n = in.read(buf))) {
            out.write(buf, 0, n);
        }
        out.close();
        in.close();
        byte[] response = out.toByteArray();

        FileOutputStream fos = new FileOutputStream("C://chart.gif");

        fos.write(response);
        fos.close();

    } catch (Exception e) {
    }

}
4

1 に答える 1

0

ここから撮影 

import java.net.*;
import java.io.*;

public class DownloadFile
{
  public static void main(String[] args)
  {
     try
     {
        /*
         * Get a connection to the URL and start up
         * a buffered reader.
         */
        long startTime = System.currentTimeMillis();

        System.out.println("Connecting to Mura site...\n");

        URL url = new URL("http://www.getmura.com/currentversion/");
        url.openConnection();
        InputStream reader = url.openStream();

        /*
         * Setup a buffered file writer to write
         * out what we read from the website.
         */
        FileOutputStream writer = new FileOutputStream("C:/mura-newest.zip");
        byte[] buffer = new byte[153600];
        int totalBytesRead = 0;
        int bytesRead = 0;

        System.out.println("Reading ZIP file 150KB blocks at a time.\n");

        while ((bytesRead = reader.read(buffer)) > 0)
        {  
           writer.write(buffer, 0, bytesRead);
           buffer = new byte[153600];
           totalBytesRead += bytesRead;
        }

        long endTime = System.currentTimeMillis();

        System.out.println("Done. " + (new Integer(totalBytesRead).toString()) + " bytes read (" + (new Long(endTime - startTime).toString()) + " millseconds).\n");
        writer.close();
        reader.close();
     }
     catch (MalformedURLException e)
     {
        e.printStackTrace();
     }
     catch (IOException e)
     {
        e.printStackTrace();
     }

  }

}
于 2012-06-06T13:30:24.417 に答える