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 }
时间: 2024-10-27 13:24:51