import zzvcom.netvideo.common.toolkit.exception.EvalException;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/** * 图片信息获取测试 * * @author leizhimin 2009-6-30 16:03:05 */ public class TestImg {
/** * 计算图片尺寸大小等信息：w宽、h高、s大小。异常时返回null。 * * @param imgpath 图片路径 * @return 图片信息map */ public static Map<String, Long> getImgInfo(String imgpath) {
Map<String, Long> map =
new HashMap<String, Long>(3);
File imgfile =
new File(imgpath);
try {
FileInputStream fis =
new FileInputStream(imgfile);
BufferedImage buff = ImageIO.read(imgfile);
map.put(
"w", buff.getWidth() * 1L);
map.put(
"h", buff.getHeight() * 1L);
map.put(
"s", imgfile.length());
fis.close();
}
catch (FileNotFoundException e) {
System.err.println(
"所给的图片文件" + imgfile.getPath() +
"不存在！计算图片尺寸大小信息失败！");
map =
null;
}
catch (IOException e) {
System.err.println(
"计算图片" + imgfile.getPath() +
"尺寸大小信息失败！");
map =
null;
}
return map;
}
public static void main(String[] args)
throws EvalException {
String p =
"c:\\111.jpg";
Map<String, Long> m = getImgInfo(p);
for (Map.Entry<String, Long> entry : m.entrySet()) {
System.out.println(entry.getKey() +
" " + entry.getValue());
}
}
}