88e030b7
 王彪总
init project
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/*
* Copyright 2017-2020 吴学文 and java110 team.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.java110.utils.util;
import org.apache.commons.codec.digest.DigestUtils;
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URL;
/**
* @desc add by 吴学文 16:41
*/
public class ImageUtils {
public static String getBase64ByImgUrl(String url) {
String suffix = url.substring(url.lastIndexOf(".") + 1);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
URL urls = new URL(url);
Image image = Toolkit.getDefaultToolkit().getImage(urls);
BufferedImage biOut = toBufferedImage(image);
ImageIO.write(biOut, suffix, baos);
String base64Str = Base64Convert.byteToBase64(baos.toByteArray());
return base64Str;
} catch (Exception e) {
return "";
}finally {
try {
baos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static String getMd5ByImgUrl(String url) {
String suffix = url.substring(url.lastIndexOf(".") + 1);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
URL urls = new URL(url);
Image image = Toolkit.getDefaultToolkit().getImage(urls);
BufferedImage biOut = toBufferedImage(image);
ImageIO.write(biOut, suffix, baos);
return DigestUtils.md5Hex(baos.toByteArray());
} catch (Exception e) {
return "";
}finally {
try {
baos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static BufferedImage toBufferedImage(Image image) {
if (image instanceof BufferedImage) {
return (BufferedImage) image;
}
// This code ensures that all the pixels in the image are loaded
image = new ImageIcon(image).getImage();
BufferedImage bimage = null;
GraphicsEnvironment ge = GraphicsEnvironment
.getLocalGraphicsEnvironment();
try {
int transparency = Transparency.OPAQUE;
GraphicsDevice gs = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gs.getDefaultConfiguration();
bimage = gc.createCompatibleImage(image.getWidth(null),
image.getHeight(null), transparency);
} catch (HeadlessException e) {
// The system does not have a screen
}
if (bimage == null) {
// Create a buffered image using the default color model
int type = BufferedImage.TYPE_INT_RGB;
bimage = new BufferedImage(image.getWidth(null),
image.getHeight(null), type);
}
// Copy image to buffered image
Graphics g = bimage.createGraphics();
// Paint the image onto the buffered image
g.drawImage(image, 0, 0, null);
g.dispose();
return bimage;
}
}
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