我用的是windows，我把图片 haima.jpg 放到了 D:\img 下，读取报错了，请问老师Windows下的路径该怎么写？

========================代码代码代码=============================

package com.imooc.o2o.util;

import net.coobird.thumbnailator.Thumbnails;
import net.coobird.thumbnailator.geometry.Positions;

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

public class ImageUtil {
   public static  void main(String[] args) throws IOException {
       String basePath = Thread.currentThread().getContextClassLoader().getResource("" ).getPath();
       System.out.println(basePath);
       Thumbnails.of(new File("D:/img/haima.jpg")).size(200, 200).watermark(Positions.BOTTOM_RIGHT,
               ImageIO.read(new File(basePath + "/watermark.jpg")), 0.25f).outputQuality(0.8f).toFile("D:/img/newhaima.jpg");


   }
}

======================报错====================

"D:\MYSDE\IDEA\IntelliJ IDEA 2019.2.2\jbr\bin\java.exe" "-javaagent:D:\MYSDE\IDEA\IntelliJ IDEA 2019.2.2\lib\idea_rt.jar=55054:D:\MYSDE\IDEA\IntelliJ IDEA 2019.2.2\bin" -Dfile.encoding=UTF-8 -classpath D:\IDEAWorkspace\o2o\target\classes;C:\Users\Administrator\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\Administrator\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\Administrator\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-core\4.3.7.RELEASE\spring-core-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-beans\4.3.7.RELEASE\spring-beans-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-context\4.3.7.RELEASE\spring-context-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-aop\4.3.7.RELEASE\spring-aop-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-expression\4.3.7.RELEASE\spring-expression-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-jdbc\4.3.7.RELEASE\spring-jdbc-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-tx\4.3.7.RELEASE\spring-tx-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-web\4.3.7.RELEASE\spring-web-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-webmvc\4.3.7.RELEASE\spring-webmvc-4.3.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.8.7\jackson-databind-2.8.7.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.8.0\jackson-annotations-2.8.0.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.8.7\jackson-core-2.8.7.jar;C:\Users\Administrator\.m2\repository\commons-collections\commons-collections\3.2\commons-collections-3.2.jar;C:\Users\Administrator\.m2\repository\org\mybatis\mybatis\3.4.2\mybatis-3.4.2.jar;C:\Users\Administrator\.m2\repository\org\mybatis\mybatis-spring\1.3.1\mybatis-spring-1.3.1.jar;C:\Users\Administrator\.m2\repository\mysql\mysql-connector-java\8.0.16\mysql-connector-java-8.0.16.jar;C:\Users\Administrator\.m2\repository\com\google\protobuf\protobuf-java\3.6.1\protobuf-java-3.6.1.jar;C:\Users\Administrator\.m2\repository\c3p0\c3p0\0.9.1.2\c3p0-0.9.1.2.jar;C:\Users\Administrator\.m2\repository\net\coobird\thumbnailator\0.4.8\thumbnailator-0.4.8.jar;C:\Users\Administrator\.m2\repository\com\github\penggle\kaptcha\2.3.2\kaptcha-2.3.2.jar;C:\Users\Administrator\.m2\repository\com\jhlabs\filters\2.0.235-1\filters-2.0.235-1.jar;C:\Users\Administrator\.m2\repository\commons-fileupload\commons-fileupload\1.3.2\commons-fileupload-1.3.2.jar;C:\Users\Administrator\.m2\repository\commons-io\commons-io\2.2\commons-io-2.2.jar;C:\Users\Administrator\.m2\repository\redis\clients\jedis\2.9.0\jedis-2.9.0.jar;C:\Users\Administrator\.m2\repository\org\apache\commons\commons-pool2\2.4.2\commons-pool2-2.4.2.jar com.imooc.o2o.util.ImageUtil
/D:/IDEAWorkspace/o2o/target/classes/

Exception in thread "main" javax.imageio.IIOException: Can't read input file!
    at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1308)
    at com.imooc.o2o.util.ImageUtil.main(ImageUtil.java:15)

Process finished with exit code 1