Java讀取網(wǎng)上靜態(tài)文件資源，具體代碼如下：
public class ResourceLoader {
private static final int BUFFER_SIZE = 1024;
public void loadResourceIntoFile(String urlStr, String file)
throws IOException {
URL url = null;
URLConnection con = null;
InputStream in = null;
FileOutputStream out = null;
try {
url = new URL(urlStr);
con = url.openConnection();
File targetFile = new File(file);
long curLength = targetFile.length();
if (curLength > 0)
con.setRequestProperty("RANGE", "bytes=" + curLength);
con.connect();
long totalLength = con.getHeaderFieldLong("Content-Length", 0);
System.out.println("total length:" + totalLength);
in = con.getInputStream();
out = new FileOutputStream(targetFile, true);
if (totalLength > 0) {
int len;
byte[] buffer = new byte[BUFFER_SIZE];
while ((len = in.read(buffer)) != -1) {
out.write(buffer);
}
}
out.flush();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
out.close();
in.close();
}
}
}