com.fhs.fileService.utils.ThumbnailatorUtils Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of fhs_file Show documentation
文件服务
The newest version!
package com.fhs.fileService.utils;

import com.fhs.common.utils.FileUtils;
import net.coobird.thumbnailator.Thumbnails;
import net.coobird.thumbnailator.geometry.Positions;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;

public class ThumbnailatorUtils
{

    /**
     * 指定大小进行缩放
     *
     * @throws IOException
     */
    public static void zoom(String soucerPath, String targetPath, int width, int height)
        throws IOException
    {
        /*
         * size(width,height) 若图片横比200小，高比300小，不变 若图片横比200小，高比300大，高缩小到300，图片比例不变 若图片横比200大，高比300小，横缩小到200，图片比例不变
         * 若图片横比200大，高比300大，图片按比例缩小，横为200或高为300
         */
        Thumbnails.of(soucerPath).size(width, height).toFile(targetPath);
    }

    /**
     * 按照比例进行缩放
     *
     * @throws IOException
     */
    private void test2()
        throws IOException
    {
        /**
         * scale(比例)
         */
        Thumbnails.of("images/test.jpg").scale(0.25f).toFile("C:/image_25%.jpg");
        Thumbnails.of("images/test.jpg").scale(1.10f).toFile("C:/image_110%.jpg");
    }

    /**
     * 不按照比例，指定大小进行缩放
     *
     * @throws IOException
     */
    private void test3()
        throws IOException
    {
        /**
         * keepAspectRatio(false) 默认是按照比例缩放的
         */
        Thumbnails.of("images/test.jpg").size(120, 120).keepAspectRatio(false).toFile("C:/image_120x120.jpg");
    }

    /**
     * 旋转
     *
     * @throws IOException
     */
    private void test4()
        throws IOException
    {
        /**
         * rotate(角度),正数：顺时针 负数：逆时针
         */
        Thumbnails.of("images/test.jpg").size(1280, 1024).rotate(90).toFile("C:/image+90.jpg");
        Thumbnails.of("images/test.jpg").size(1280, 1024).rotate(-90).toFile("C:/iamge-90.jpg");
    }

    /**
     * 水印
     *
     * @throws IOException
     */
    private void test5()
        throws IOException
    {
        /**
         * watermark(位置，水印图，透明度)
         */
        Thumbnails.of("images/test.jpg")
            .size(1280, 1024)
            .watermark(Positions.BOTTOM_RIGHT, ImageIO.read(new File("images/watermark.png")), 0.5f)
            .outputQuality(0.8f)
            .toFile("C:/image_watermark_bottom_right.jpg");
        Thumbnails.of("images/test.jpg")
            .size(1280, 1024)
            .watermark(Positions.CENTER, ImageIO.read(new File("images/watermark.png")), 0.5f)
            .outputQuality(0.8f)
            .toFile("C:/image_watermark_center.jpg");
    }

    /**
     * 裁剪
     *
     * @throws IOException
     */
    private void test6()
        throws IOException
    {
        /**
         * 图片中心400*400的区域
         */
        Thumbnails.of("images/test.jpg")
            .sourceRegion(Positions.CENTER, 400, 400)
            .size(200, 200)
            .keepAspectRatio(false)
            .toFile("C:/image_region_center.jpg");
        /**
         * 图片右下400*400的区域
         */
        Thumbnails.of("images/test.jpg")
            .sourceRegion(Positions.BOTTOM_RIGHT, 400, 400)
            .size(200, 200)
            .keepAspectRatio(false)
            .toFile("C:/image_region_bootom_right.jpg");
        /**
         * 指定坐标
         */
        Thumbnails.of("images/test.jpg")
            .sourceRegion(600, 500, 400, 400)
            .size(200, 200)
            .keepAspectRatio(false)
            .toFile("C:/image_region_coord.jpg");
    }

    /**
     * 转化图像格式
     *
     * @throws IOException
     */
    private void test7()
        throws IOException
    {
        /**
         * outputFormat(图像格式)
         */
        Thumbnails.of("images/test.jpg").size(1280, 1024).outputFormat("png").toFile("C:/image_1280x1024.png");
        Thumbnails.of("images/test.jpg").size(1280, 1024).outputFormat("gif").toFile("C:/image_1280x1024.gif");
    }

    /**
     * 输出到OutputStream
     *
     * @throws IOException
     */
    public static byte[] zoom2Bytes(String soucerPath, int width, int height)
        throws IOException
    {
        /**
         * toOutputStream(流对象)
         */
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        Thumbnails.of(soucerPath).outputQuality(1).size(width, height).toOutputStream(os);
        byte[] result = os.toByteArray();
        os.close();
        return result;
    }

    


    /**
     * 输出到OutputStream
     *
     * @throws IOException
     */
    public static byte[] zoom2Bytes(InputStream soucerPath, int width, int height)
        throws IOException
    {
        /**
         * toOutputStream(流对象)
         */
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        Thumbnails.of(soucerPath).size(width, height).toOutputStream(os);
        byte[] result = os.toByteArray();
        os.close();
        return result;
    }

    /**
     * 输出到BufferedImage
     *
     * @throws IOException
     */
    private void test9()
        throws IOException
    {
        /**
         * asBufferedImage() 返回BufferedImage
         */
        BufferedImage thumbnail = Thumbnails.of("images/test.jpg").size(1280, 1024).asBufferedImage();
        ImageIO.write(thumbnail, "jpg", new File("C:/image_1280x1024_BufferedImage.jpg"));
    }
}