2022java实现缩略图和抓屏幕.docx

2022java实现缩略图和抓屏幕java实现缩略图和抓屏幕在全球范围内，SUN公司的Java技术培训和认证不仅是Java开发技术领域最权威的认证，同时也是开发类认证中很重要的.一种.以下是我整理的关于java实现缩略图和抓屏幕，希望大家仔细阅读!importjava.awt.Container;importjava.awt.Dimension;importjava.awt.Graphics2D;importjava.awt.Image;importjava.awt.MediaTracker;importjava.awt.Rectangle;importjava.awt.RenderingHints;importjava.awt.Robot;importjava.awt.Toolkit;importjava.awt.image.BufferedImage;importjava.io.BufferedOutputStream;importjava.io.File;importjava.io.FileOutputStream;importjavax.imageio.ImageIO;importcom.sun.image.codec.jpeg.JPEGCodec;importcom.sun.image.codec.jpeg.JPEGEncodeParam;importcom.sun.image.codec.jpeg.JPEGImageEncoder;/****纯javaAPI实现图片处理*Title:ImageChangeSize*Description:*Copyright:Copyright(c)2022*Company:*@author*@version1.0.0*/publicclassImageChangeSize{publicstaticvoidmain(String[]args)throwsInterruptedException{//测试生成缩略图createThumbnail("c:\555.gif",200,200,100,"c:\uuuu.jpg");//测试捕获屏幕，每隔一秒捕获一次Stringpath="c:\screen\";inti=0;for(;;){i++;Stringfilepath=path+i+".jpg";snatchScreen(filepath);Thread.currentThread().sleep(2000);}}/***处理图片，变更起大小，可进行缩略和放大*@paramfilename源文件名称*@paramthumbWidth处理后宽度*@paramthumbHeight处理后高度*@paramquality品质最高100，最小0*@paramoutFilename输出文件名称*/publicstaticvoidcreateThumbnail(Stringfilename,intthumbWidth,intthumbHeight,intquality,StringoutFilename){Imageimage=Toolkit.getDefaultToolkit().getImage(filename);MediaTrackermediaTracker=newMediaTracker(newContainer());mediaTracker.addImage(image,0);try{mediaTracker.waitForID(0);doublethumbRatio=(double)thumbWidth/(double)thumbHeight;intimageWidth=image.getWidth(null);intimageHeight=image.getHeight(null);doubleimageRatio=(double)imageWidth/(double)imageHeight;if(thumbRatio<imageRatio){thumbHeight=(int)(thumbWidth/imageRatio);}else{thumbWidth=(int)(thumbHeight*imageRatio);}BufferedImagethumbImage=newBufferedImage(thumbWidth,thumbHeight,BufferedImage.TYPE_INT_RGB);Graphics2Dgraphics