Encode image to string - Java 2D Graphics

Java examples for 2D Graphics:Image

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Description

Encode image to string

Demo Code


//package com.java2s;
import java.awt.image.BufferedImage;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

import sun.misc.BASE64Encoder;

public class Main {
    /**/* w w w.  ja  v a  2 s.  c o  m*/
     * Encode image to string
     * 
     * @param image
     *            The image to encode
     * @param formatName jpeg, bmp, ...
     * @return encoded string
     * @throws Exception
     */

    public static String encodeToString(BufferedImage image,
            String formatName) throws Exception {

        String imageString = null;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        try {
            ImageIO.write(image, formatName, bos);
            byte[] imageBytes = bos.toByteArray();

            BASE64Encoder encoder = new BASE64Encoder();
            imageString = encoder.encode(imageBytes);

            bos.close();

        } catch (IOException e) {
            throw new Exception(
                    "Error when try to convert image to bse64.", e);
        }

        return imageString;
    }

    public static String encodeToString(String pathImage, String formatName)
            throws Exception {

        BufferedImage image = null;
        try {
            image = ImageIO.read(new File(pathImage));
        } catch (IOException e1) {
            throw new Exception(
                    "Error when try to read image " + pathImage, e1);
        }

        return encodeToString(image, formatName);

    }
}

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