[JAVA] 파일 합치기, 파일 삭제

파일 합치기

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class test {
	static String CONTENTS_DOWNLOAD_PATH = "";

	public static void mergeFragment() {
		String mergedContentsName = "server.zip";
		int cnt = 183;
		FileInputStream fis = null;
		FileOutputStream fos = null;
		try {
			fos = new FileOutputStream(CONTENTS_DOWNLOAD_PATH
					+ mergedContentsName);
			byte[] buf = new byte[1024];
			for (int fragmentCnt = 0; fragmentCnt < cnt; fragmentCnt++) {
				System.out.println(">" + fragmentCnt + " 성공");
				try {
					int len = 0;
					fis = new FileInputStream(CONTENTS_DOWNLOAD_PATH
							+ mergedContentsName + fragmentCnt);
					while ((len = fis.read(buf)) != -1) {
						fos.write(buf, 0, len);
					}
					fos.flush();
					fis.close();
				} catch (IOException e) { // TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
			fos.close();
		} catch (IOException e1) { // TODO Auto-generated catch block
			e1.printStackTrace();
		}

	}
}

파일 삭제

 
import java.io.File;

public class test {
	static String CONTENTS_DOWNLOAD_PATH = "";

	public static void deleteAllFragment() {
		String mergedContentsName = "server.zip";
		int cnt = 183;
		File f = null;
		for (int fragmentCnt = 0; fragmentCnt < cnt; fragmentCnt++) {
			f = new File(CONTENTS_DOWNLOAD_PATH + mergedContentsName
					+ fragmentCnt);
			if (f.delete()) {
				System.out.println(">" + fragmentCnt + " 삭제성공");
			} else {
				System.out.println(">" + fragmentCnt + " 삭제실패");
			}
		}
	}
}