java 图片处理【万能图片格式转换工具】_x_pengcheng的专栏

代码非原创，只是做个记录，供以后使用

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

/**
 * Created by root on 11/26/16.
 */
public class FormatConversion {

    public static final String JPG = "jpg";
    public static final String GIF = "gif";
    public static final String PNG = "png";
    public static final String BMP = "bmp";

    public static void main(String[] args) {
        String src = "/imgs/1.";
        new FormatConversion().Conversion(PNG, JPG, src);//JPG转成PNG
//        new FormatConversion().Conversion(JPG, GIF, src);//JPG转成GIF
//        new FormatConversion().Conversion(JPG, BMP, src);//JPG转成BMP
//        new FormatConversion().Conversion(JPG, BMP, src);//JPG转成BMP

        //其余格式转化只要调用Conversion函数即可
    }

    //inputFormat表示原格式，outputFormat表示转化后的格式
    public void Conversion(String inputFormat, String outputFormat, String src) {
        try {
            File input = new File(src + inputFormat);
            BufferedImage bim = ImageIO.read(input);
            File output = new File(src + outputFormat);
            ImageIO.write(bim, outputFormat, output);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}import javax.imageio.I