package test;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
public class Test {
public static void main(String[] args) throws IOException{
File file = new File("D:\\logo.png");
InputStream is = new FileInputStream(file);
ImageInputStream iis = ImageIO.createImageInputStream(is);
Iterator<ImageReader> iter =ImageIO.getImageReaders(iis);
if(!iter.hasNext()) {
return;
}
ImageReader reader = iter.next();
iis.close();
String name = reader.getFormatName();
System.out.println(name);
}
}
java 解析圖片類型 代碼片段
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