[Java basic-Utility] 디렉토리 파일 리스트 조회

디렉토리내 파일이 존재 하는지 확인하는 java 코드입니다 .

디렉토리를 조회후 파일이 있는지 확인하고 디렉토리내 또 다른 디렉토리가 존재 한다면 재귀 함수 호출을 통해 

하위 파일 까지 출력 하는 코드 입니다. 

Oracle 샘플 스키마 스크립트를 가지고 테스트해보겠습니다. 

 

import java.io.File;
import java.io.IOException;
import java.security.AccessControlException;
import java.sql.SQLException;
import java.util.ArrayList;

public class DirectoryFileList {

	public static void main(String[] args)
			throws AccessControlException, SQLException, ClassNotFoundException, IOException {

		String path = "D:\\998.Tmp\\db-sample-schemas-19.2\\db-sample-schemas-19.2";

		ArrayList al = new ArrayList<String>();
		subDirList(path, al);

	}

	public static void subDirList(String source, ArrayList<String> list) {

		File dir = new File(source);
		File[] fileList = dir.listFiles();

		try {

			for (int i = 0; i < fileList.length; i++) {

				File file = fileList[i];

				if (file.isFile()) {

					// 파일이 있다면 파일 이름 출력
					System.out.println("\t File name :" + file.getAbsoluteFile());
					list.add(file.getParent() + File.separator + file.getName());

				} else if (file.isDirectory()) {

					System.out.println("Directory name:" + file.getName());
					// 서브디렉토리가 존재하면 재귀적 방법으로 다시 탐색
					list.add(file.getParent() + File.separator + file.getName());
					subDirList(file.getCanonicalPath().toString(), list);

				}

			}

		} catch (IOException e) {
			e.printStackTrace();
		}

	}

}

 

실행결과

Directory name:bus_intelligence
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\bus_intelligence\bi_main.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\bus_intelligence\bi_oe_pr.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\bus_intelligence\bi_sh_pr.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\bus_intelligence\bi_views.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\CONTRIBUTING.md
Directory name:customer_orders
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_ddl.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_dml.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_drop_objects.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_drop_user.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_main.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_set_identity_starts.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\co_user.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\customers.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\orders.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\order_items.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\products.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\README.md
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\README.txt
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\sample_queries.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\customer_orders\stores.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\drop_sch.sql
Directory name:human_resources
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\human_resources\hr_analz.sql
 File name :D:\998.Tmp\db-sample-schemas-19.2\db-sample-schemas-19.2\human_resources\hr_code.sql

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