파일에 있는 멤버 정보를 DB로

.gitignore

+
+# Created by https://www.toptal.com/developers/gitignore/api/windows,eclipse,java
+# Edit at https://www.toptal.com/developers/gitignore?templates=windows,eclipse,java
+.DS_Store
+### Eclipse ###
+.classpath
+.project
+.metadata
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+.recommenders
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# PyDev specific (Python IDE for Eclipse)
+*.pydevproject
+
+# CDT-specific (C/C++ Development Tooling)
+.cproject
+
+# CDT- autotools
+.autotools
+
+# Java annotation processor (APT)
+.factorypath
+
+# PDT-specific (PHP Development Tools)
+.buildpath
+
+# sbteclipse plugin
+.target
+
+# Tern plugin
+.tern-project
+
+# TeXlipse plugin
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+
+# STS (Spring Tool Suite)
+.springBeans
+
+# Code Recommenders
+.recommenders/
+
+# Annotation Processing
+.apt_generated/
+.apt_generated_test/
+
+# Scala IDE specific (Scala & Java development for Eclipse)
+.cache-main
+.scala_dependencies
+.worksheet
+
+# Uncomment this line if you wish to ignore the project description file.
+# Typically, this file would be tracked if it contains build/dependency configurations:
+#.project
+
+### Eclipse Patch ###
+# Spring Boot Tooling
+.sts4-cache/
+
+### Java ###
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+#*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
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+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
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+
+# Windows shortcuts
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+
+# End of https://www.toptal.com/developers/gitignore/api/windows,eclipse,java
\ No newline at end of file

src/com/hsj/util/Util.java

+package com.hsj.util;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+
+public class Util {
+	// 오늘 날짜를 가져 오는 메소드(yyyy-MM-dd)
+    public static String getCurrentDate(String fmt) {
+        SimpleDateFormat sdf = new SimpleDateFormat(fmt);
+        return sdf.format(new Date());
+    }
+    
+    // 파일 읽어서 화면에 출력(파일 내용을 여기 메소드 밖으로 보내고 싶다)
+    public static String readLineFile(String filePath) {
+		BufferedReader br = null;
+		String retLine = "";
+//		StringBuffer sb = new StringBuffer();
+		try {
+			br = new BufferedReader(new FileReader(filePath));
+			while (true) {
+				String line = br.readLine();
+				if (line == null)
+					break;
+				
+				retLine += line + "\n";  // 문자열을 리턴
+//				sb.append(line + "\n");
+//				System.out.println(line);   // 화면에 출력
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+		} finally {
+			try {
+				br.close();
+			} catch (IOException e) {
+				e.printStackTrace();
+			}
+		}
+		return retLine;   // sb.toString()
+//		return sb.toString(); 
+    }
+    
+    public static ArrayList<String> readLineFileList(String filePath) {
+    	ArrayList<String> list = new ArrayList<String>();
+		BufferedReader br = null;
+		String retLine = "";
+//		StringBuffer sb = new StringBuffer();
+		try {
+			br = new BufferedReader(new FileReader(filePath));
+			while (true) {
+				String line = br.readLine();
+				if (line == null)
+					break;
+				list.add(line);
+//				retLine += line + "\n";  // 문자열을 리턴
+//				sb.append(line + "\n");
+//				System.out.println(line);   // 화면에 출력
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+		} finally {
+			try {
+				br.close();
+			} catch (IOException e) {
+				e.printStackTrace();
+			}
+		}
+		return list;   // sb.toString()
+    }
+    
+    // 파일 쓰기(새파일로 쓰기, 덮어쓰기)
+    public static void writeLineFile(ArrayList<String> strList, String filePath) {
+		PrintWriter out = null;
+		try {
+			out = new PrintWriter(filePath);
+	        for(String s : strList) {
+	            out.println(s);
+	        }
+		} catch (IOException e) {
+			e.printStackTrace();
+		} finally {
+			out.close();
+		}
+    }
+    
+    // 	파일 쓰기(이어 쓰기)
+    public static void writeLineFile(ArrayList<String> strList, String filePath, boolean isAppend) {
+		PrintWriter out = null;
+		try {
+			out = new PrintWriter(new FileWriter(filePath, isAppend));
+	        for(String s : strList) {
+	            out.println(s);
+	        }
+		} catch (IOException e) {
+			e.printStackTrace();
+		} finally {
+			out.close();
+		}
+    }
+    
+    // 내가 만든 문자열을 잘라서 데이터 전달
+    public static void mySplit(String str, String regex1, String regex2) {
+		String[] strArr = str.split(regex1);
+		for (String s : strArr) {
+//			System.out.println(s);
+			String[] tmpArr = s.split(regex2);
+//			for (String ss : tmpArr) {
+//				System.out.println(ss);
+//			}
+//			System.out.println(tmpArr.length);
+			for (int i = 0; i < tmpArr.length; i++) {
+				if (i == tmpArr.length-1) {
+					System.out.print(tmpArr[i]);
+				} else {
+					System.out.print(tmpArr[i] + " / ");
+				}
+			}
+			System.out.println();
+
+		}
+    }
+
+}
\ No newline at end of file

src/dao/MemberDao.java

+package dao;
+
+import java.util.ArrayList;
+
+import dto.MemberDto;
+
+public interface MemberDao {
+	// 데이터 넣기
+	public void insert(MemberDto dto);
+	
+	// 데이터 보기
+	// 데이터 한개 보기
+	public MemberDto selectOne(int n);
+	
+	// 데이터 전체 보기	
+	public ArrayList<MemberDto> selectAll();
+		
+	// 데이터 수정
+	public void update(MemberDto dto);
+}

src/dao/MemberDaoImpl.java

+package dao;
+
+import java.sql.Connection;
+import java.util.ArrayList;
+
+import dto.MemberDto;
+
+public class MemberDaoImpl implements MemberDao {
+	private Connection conn; // DB 커넥션 연결 객체
+	private static final String USERNAME = "root";// DBMS접속 시 아이디
+	private static final String PASSWORD = "1234";// DBMS접속 시 비밀번호
+	private static final String URL = "jdbc:mysql://localhost:3306/aidb";// DBMS접속할 db명
+	
+	// 생성자에 연결 
+	public MemberDaoImpl() {
+		// 디비 연결 부분
+	}
+
+	@Override
+	public void insert(MemberDto dto) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public MemberDto selectOne(int n) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public ArrayList<MemberDto> selectAll() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void update(MemberDto dto) {
+		// TODO Auto-generated method stub
+		
+	}
+
+}

src/dto/MemberDto.java

+package dto;
+
+public class MemberDto {
+	// 번호
+	private int num;
+	// 이름
+	private String name;
+	// 전공
+	private String major;
+	// 이메일
+	private String email;
+	public int getNum() {
+		return num;
+	}
+	public void setNum(int num) {
+		this.num = num;
+	}
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public String getMajor() {
+		return major;
+	}
+	public void setMajor(String major) {
+		this.major = major;
+	}
+	public String getEmail() {
+		return email;
+	}
+	public void setEmail(String email) {
+		this.email = email;
+	}
+	
+	
+}

src/member/MainClass.java

+package member;
+
+import java.util.ArrayList;
+
+import com.hsj.util.Util;
+
+import dto.MemberDto;
+
+public class MainClass {
+
+	public static void main(String[] args) {
+		// 멤버 정보 DB 활용
+		
+		// 파일에 있는 데이터를 읽어오기
+		String filePath = "C:/dev/file/전공정보.txt";
+		Member member = new Member();
+		ArrayList<MemberDto> list = member.getMemberList(filePath);
+		for (MemberDto d : list) {
+			System.out.println(d.getName());
+		}
+//		System.out.println("쉼표로 구분되는 데이터 갯수: " + spData.length);
+		// 읽어온 데이터를 DB에 넣기
+		
+		// 데이터 보기
+		
+		// 데이터 수정
+
+	}
+
+}

src/member/Member.java

+package member;
+
+import java.util.ArrayList;
+
+import com.hsj.util.Util;
+
+import dto.MemberDto;
+
+public class Member {
+
+	public ArrayList<MemberDto> getMemberList(String filePath) {
+		ArrayList<MemberDto> retList = new ArrayList<MemberDto>();
+		ArrayList<String> spList = Util.readLineFileList(filePath);
+		for (String s : spList) {
+			MemberDto dto = new MemberDto();
+			String[] sp = s.split(",");
+			dto.setNum(Integer.parseInt(sp[0]));   // 문자열을 숫자로
+			dto.setName(sp[1]);
+			dto.setMajor(sp[2]);
+			dto.setEmail(sp[3]);
+			retList.add(dto);
+		}
+		return retList;
+	}
+}