1 import java.io.BufferedInputStream;
2 import java.io.ByteArrayOutputStream;
3 import java.io.InputStream;
4 import java.net.HttpURLConnection;
5 import java.net.URL;
6
7 public class ReadURLUtil {
8
9 public static byte[] loadRawDataFromURL(String u) throws Exception {
10 URL url = new URL(u);
11 HttpURLConnection conn = (HttpURLConnection) url.openConnection();
12
13 InputStream is = conn.getInputStream();
14 BufferedInputStream bis = new BufferedInputStream(is);
15
16 ByteArrayOutputStream baos = new ByteArrayOutputStream();
17 // 缓存2KB
18 final int BUFFER_SIZE = 2 * 1024;
19 final int EOF = -1;
20
21 int c;
22 byte[] buf = new byte[BUFFER_SIZE];
23
24 while (true) {
25 c = bis.read(buf);
26 if (c == EOF)
27 break;
28
29 baos.write(buf, 0, c);
30 }
31
32 conn.disconnect();
33 is.close();
34
35 byte[] data = baos.toByteArray();
36 baos.flush();
37
38 return data;
39 }
40
41 }
