获取远程图片宽度高度的方法

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ page language="java" %>
<%@ page import= "java.io.* "%>
<%@ page import= "java.net.* "%>
<%@ page import= "javax.naming.* "%>
<%@ page import= "javax.sql.DataSource "%>
<%@ page import="java.sql.*" %>
<%@ page import="java.util.Date" %>
<%@ page import="java.io.*,java.awt.Image,java.awt.image.*,com.sun.image.codec.jpeg.*,java.sql.*,com.jspsmart.upload.*,java.util.*,cn.oof.database.*,cn.oof.house.*"%>
<%@ page import="javax.imageio.*" %>
<%@ page import="java.net.URL" %>
<%@ page import="java.net.URLConnection.*"%>
<%@ page import="java.io.IOException.*"%>

<%

Image image = null;
try {
// Read from a file
// File file = new File("image.gif");
// image = ImageIO.read(file);

// Read from an input stream
// InputStream is = new BufferedInputStream(
// new FileInputStream("image.gif"));
// image = ImageIO.read(is);

// Read from a URL
java.net.URL url = new URL("http://www.baidu.com/img/logo-yy.gif");
BufferedImage bi = null;
bi = javax.imageio.ImageIO.read(url);
image= javax.imageio.ImageIO.read(url);
int[] a = new int[2];
a[0]= bi.getWidth();
a[1] = bi.getHeight(); //获得 高度
int b=a[0];
out.print("111");
out.print(a[0]);
out.print(a[1]);
out.print("000");
//out.print(d);
} catch (IOException e) {
}

%>