save URL Image To File - Java 2D Graphics

Java examples for 2D Graphics:Image File

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Description

save URL Image To File

Demo Code


//package com.java2s;
import java.io.BufferedInputStream;
import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.zip.GZIPInputStream;

public class Main {
    public static void saveURLImageToFile(String urlPath,
            String fileSavePath) throws IOException {
        FileOutputStream fos = null;
        BufferedInputStream bis = null;
        HttpURLConnection httpUrl = null;
        URL url = null;/*w w w  . ja  v  a2 s. c  o  m*/
        int BUFFER_SIZE = 1024;
        byte[] buf = new byte[BUFFER_SIZE];
        int size = 0;
        try {
            url = new URL(urlPath);
            httpUrl = (HttpURLConnection) url.openConnection();
            httpUrl.connect();

            File file = new File(fileSavePath);
            if (!file.getParentFile().exists())
                file.getParentFile().mkdirs();

            String zipFormatter = httpUrl
                    .getHeaderField("Content-Encoding");
            InputStream is = httpUrl.getInputStream();
            if (zipFormatter != null && zipFormatter.equals("gzip"))
                is = new GZIPInputStream(is);

            bis = new BufferedInputStream(is);
            fos = new FileOutputStream(fileSavePath);
            while ((size = bis.read(buf)) != -1) {
                fos.write(buf, 0, size);
            }

        } catch (IOException e) {
        } catch (ClassCastException e) {
        } finally {
            if (fos != null) {
                fos.flush();
                fos.close();
            }
            if (bis != null) {
                bis.close();
            }
            if (httpUrl != null) {
                httpUrl.disconnect();
            }
        }
    }
}

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