import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection; public class FileUrlDownload {
/**
* 버퍼 사이즈
*/
final static int size = 1024; /**
* fileAddress에서 파일을 읽어, 다운로드 디렉토리에 다운로드
*
* @param fileAddress
* @param localFileName
* @param downloadDir
*/
public static void fileUrlReadAndDownload(String fileAddress,
String localFileName, String downloadDir) {
OutputStream outStream = null;
URLConnection uCon = null; InputStream is = null;
try { System.out.println("-------Download Start------"); URL Url;
byte[] buf;
int byteRead;
int byteWritten = 0;
Url = new URL("fileAddress);
outStream = new BufferedOutputStream(new FileOutputStream(
downloadDir + "\\" + localFileName)); uCon = Url.openConnection();
is = uCon.getInputStream();
buf = new byte[size];
while ((byteRead = is.read(buf)) != -1) {
outStream.write(buf, 0, byteRead);
byteWritten += byteRead;
} System.out.println("Download Successfully.");
System.out.println("File name : " + localFileName);
System.out.println("of bytes : " + byteWritten);
System.out.println("-------Download End--------"); } catch (Exception e) {
e.printStackTrace();
} finally {
try {
is.close();
outStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} /**
*
* @param fileAddress
* @param downloadDir
*/
public static void fileUrlDownload(String fileAddress, String downloadDir) { int slashIndex = fileAddress.lastIndexOf('/');
int periodIndex = fileAddress.lastIndexOf('.'); // 파일 어드레스에서 마지막에 있는 파일이름을 취득
String fileName = fileAddress.substring(slashIndex + 1); if (periodIndex >= 1 && slashIndex >= 0
&& slashIndex < fileAddress.length() - 1) {
fileUrlReadAndDownload(fileAddress, fileName, downloadDir);
} else {
System.err.println("path or file name NG.");
}
} /**
* main
*
* @param args
*/
public static void main(String[] args) { // 파일 어드레스
String url = "http://localhost/download/index.php";
// 다운로드 디렉토리
String downDir = "C:/Temp"; // 다운로드 호출
fileUrlDownload(url, downDir); }
} | 
