Spring 多线程异步上传图片、处理水印、缩略图！

使用环境

• SpringBoot+FastDfs+thumbnailator
• fdfs环境自己搞吧

maven依赖：

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

工具类：

import net.coobird.thumbnailator.Thumbnails;
import net.coobird.thumbnailator.geometry.Positions;
import org.springframework.stereotype.Component;
import javax.imageio.ImageIO;
import java.io.File;
import java.io.IOException;

@Component
public class PictureUtil {
   

    /**
     * 水印图片
     */
    private static File markIco = null;

    //开机静态加载水印图片
    static {
   
        try {
   
            markIco = new File(new File("").getCanonicalPath() + "/icon.png");
            LogUtil.info(PictureUtil.class, "水印图片加载" + (markIco.exists() ? "成功" : "失败"));
        } catch (Exception e) {
   
        }
    }

    /**
     * 加水印
     */
    public void photoMark(File sourceFile, File toFile) throws IOException {
   
        Thumbnails.of(sourceFile)
                .size(600, 450)//尺寸
                .watermark(Positions.BOTTOM_CENTER/*水印位置：中央靠下*/, 
                ImageIO.read(markIco), 0.7f/*质量，越大质量越高(1)*/)
                //.outputQuality(0.8f)
                .toFile