jpg格式转换成png格式

来源：互联网发布：淘宝店铺小号怎么弄编辑：程序博客网时间：2024/05/21 07:11

package test;import java.io.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;public class ChangeImgFormat {    public static void main(String[] args) {        jpgToPng();    }    //把jpg格式的图片编程png格式    public static void jpgToPng(){        FileInputStream in = null;        BufferedInputStream bin = null;        File f = new File("F:/me.png");        FileOutputStream out = null;        try {            //读入图片             in = new FileInputStream("F:/20161020_202803.jpg");             bin = new BufferedInputStream(in);             //写图片             out = new FileOutputStream(f);             byte [] b = new byte [1024];             int flag;             while((flag=bin.read(b))!=-1){                 //写出图片                 out.write(b, 0, flag);             }             System.out.println(f.exists());        } catch (Exception e) {            System.out.println("出异常了");            e.printStackTrace();        }    }}

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