java實現圖片按比例壓縮

聲明:歡迎批評指正

目標:java實現按比例壓縮圖片

開始！

api:
1. thumbnailator:https://codeload.github.com/coobird/thumbnailator/zip/master

2.jdk api(File/BufferedImage/ImageIO)

jar地址:

http://central.maven.org/maven2/net/coobird/thumbnailator/0.4.8/thumbnailator-0.4.8.jar

pom.xml:

<dependency>
    <groupId>net.coobird</groupId>
    <artifactId>thumbnailator</artifactId>
    <version>0.4.8</version>
</dependency>

導入jar包:
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import net.coobird.thumbnailator.makers.ScaledThumbnailMaker;

//讀取文件
BufferedImage img = ImageIO.read(new File("c:\\圖片1.jpg"));
//按固定比例0.15壓縮圖片
BufferedImage bi = new ScaledThumbnailMaker().scale(0.15).imageType(BufferedImage.TYPE_3BYTE_BGR).make(img);
//寫壓縮後圖片            
ImageIO.write(bi,"jpg",new File("c:\\圖片1_壓縮.jpg"));

(全文完)