[이한솔][Week2] 웹 백엔드 과제

hansol/week2/cardmanager/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.edwith.webbe</groupId>
+    <artifactId>cardmanager</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.18</version>
+        </dependency>
+    </dependencies>
+
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.6.1</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

hansol/week2/cardmanager/src/main/java/org/edwith/webbe/cardmanager/CardManager.java

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+package org.edwith.webbe.cardmanager;
+
+import org.edwith.webbe.cardmanager.dao.BusinessCardManagerDao;
+import org.edwith.webbe.cardmanager.dto.BusinessCard;
+import org.edwith.webbe.cardmanager.ui.CardManagerUI;
+
+import java.util.List;
+
+public class CardManager {
+    public static void main(String[] args){
+        CardManagerUI cardManagerUI = CardManagerUI.getInstance();
+        BusinessCardManagerDao businessCardManagerDao = new BusinessCardManagerDao();
+
+        while_loop:
+        while(true) {
+            cardManagerUI.printMainMenu();
+            int menuNumber = cardManagerUI.getMenuNumber();
+            switch(menuNumber){
+                case 1 :
+                    BusinessCard businessCard = cardManagerUI.inputBusinessCard();
+                    businessCardManagerDao.addBusinessCard(businessCard);
+                    break;
+                case 2 :
+                    String searchKeyword = cardManagerUI.getSearchKeyword();
+                    List<BusinessCard> businessCardList = businessCardManagerDao.searchBusinessCard(searchKeyword);
+                    cardManagerUI.printBusinessCards(businessCardList);
+                    break;
+                case 3 :
+                    cardManagerUI.printExitMessage();
+                    break while_loop;
+                default:
+                    cardManagerUI.printErrorMessage();
+                    break;
+            }
+        }
+    }
+}

hansol/week2/cardmanager/src/main/java/org/edwith/webbe/cardmanager/dao/BusinessCardManagerDao.java

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+package org.edwith.webbe.cardmanager.dao;
+
+import org.edwith.webbe.cardmanager.dto.BusinessCard;
+
+import com.mysql.cj.protocol.Resultset;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class BusinessCardManagerDao {
+	private static String dburl = "jdbc:mysql://localhost:3306/connectdb?serverTimezone=UTC";
+	private static String dbUser = "connectuser";
+	private static String dbpassword = "connect123!@#";
+
+    public List<BusinessCard> searchBusinessCard(String keyword){
+    	List<BusinessCard> list = new ArrayList<>();
+
+    	try {
+    		Class.forName("com.mysql.cj.jdbc.Driver");
+    	} catch (ClassNotFoundException e) {
+    		e.printStackTrace();
+    	}
+    	String sql = "SELECT name,phone,companyName FROM BusinessCard WHERE name like ?";
+    	try (Connection conn = DriverManager.getConnection(dburl, dbUser, dbpassword);
+    			PreparedStatement ps = conn.prepareStatement(sql)){
+
+			ps.setString(1, "%"+keyword+"%");		
+    		try(ResultSet rs = ps.executeQuery()){
+
+    			while(rs.next()) {
+    				String name = rs.getString(1);
+    				String phone = rs.getString(2);
+    				String companyName = rs.getString(3);
+
+					BusinessCard businessCard = new BusinessCard(name,phone,companyName);
+					list.add(businessCard);
+    			}
+    		}catch (Exception e) {
+    			e.printStackTrace();
+    		}
+    	}catch (Exception ex) {
+    		ex.printStackTrace();
+    	}
+    	return list;
+    }	
+
+    public BusinessCard addBusinessCard(BusinessCard businessCard){
+    	int insertCount = 0;
+
+    	try {
+    		Class.forName("com.mysql.cj.jdbc.Driver");
+    	} catch (ClassNotFoundException e) {
+    		e.printStackTrace();
+    	} //Driver Loading
+    	String sql = "INSERT INTO BusinessCard (name,phone,companyName) VALUES(?,?,?)";
+    	try (Connection conn = DriverManager.getConnection(dburl, dbUser, dbpassword);
+    			PreparedStatement ps = conn.prepareStatement(sql)){
+    			ps.setString(1, businessCard.getName());
+    			ps.setString(2, businessCard.getPhone());
+    			ps.setString(3, businessCard.getCompanyName());
+
+    			insertCount = ps.executeUpdate();
+    	}catch (Exception ex) {
+    		ex.printStackTrace();
+    	}
+    	return businessCard;
+    }
+}

hansol/week2/cardmanager/src/main/java/org/edwith/webbe/cardmanager/dto/BusinessCard.java

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+package org.edwith.webbe.cardmanager.dto;
+
+import java.util.Date;
+
+public class BusinessCard {
+    private String name;
+    private String phone;
+    private String companyName;
+    private Date createDate;
+
+    public BusinessCard(String name, String phone, String companyName) {
+        this.name = name;
+        this.phone = phone;
+        this.companyName = companyName;
+        this.createDate = new Date();
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    public String getCompanyName() {
+        return companyName;
+    }
+
+    public void setCompanyName(String companyName) {
+        this.companyName = companyName;
+    }
+
+    public Date getCreateDate() {
+        return createDate;
+    }
+
+    public void setCreateDate(Date createDate) {
+        this.createDate = createDate;
+    }
+
+    @Override
+    public String toString() {
+        return "BusinessCard{" +
+                "name='" + name + '\'' +
+                ", phone='" + phone + '\'' +
+                ", companyName='" + companyName + '\'' +
+                ", createDate=" + createDate +
+                '}';
+    }
+}

hansol/week2/cardmanager/src/main/java/org/edwith/webbe/cardmanager/ui/CardManagerUI.java

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+package org.edwith.webbe.cardmanager.ui;
+
+import org.edwith.webbe.cardmanager.dto.BusinessCard;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.List;
+
+public class CardManagerUI {
+    private BufferedReader in;
+
+    private CardManagerUI(){
+        in = new BufferedReader(new InputStreamReader(System.in));
+    }
+
+    private static CardManagerUI instance = new CardManagerUI();
+
+    public static CardManagerUI getInstance(){
+        return instance;
+    }
+
+    public void printMainMenu(){
+        System.out.println("------------------------");
+        System.out.println("1. 명함 입력");
+        System.out.println("2. 명함 검색");
+        System.out.println("3. 종료");
+        System.out.println("------------------------");
+        System.out.print("메뉴를 입력하세요 : ");
+    }
+
+    public int getMenuNumber(){
+        try {
+            int menuNumber = Integer.parseInt(in.readLine());
+            return menuNumber;
+        }catch(Exception ex){
+            return -1; // 숫자로 변환 못할 경우 -1을 리턴한다.
+        }
+    }
+
+    public BusinessCard inputBusinessCard(){
+        try {
+            System.out.print("이름을 입력하세요 : ");
+            String name = in.readLine();
+            System.out.print("전화번호를 입력하세요. : ");
+            String phone = in.readLine();
+            System.out.print("회사 이름을 입력하세요. : ");
+            String companyName = in.readLine();
+            BusinessCard businessCard = new BusinessCard(name, phone, companyName);
+            return businessCard;
+        }catch(Exception ex){
+            System.out.println("잘못된 값을 입력했습니다. ");
+            return null;
+        }
+    }
+
+    public String getSearchKeyword(){
+        try {
+            System.out.print("검색할 이름을 입력하세요. (like검색) : ");
+            String searchKeyword = in.readLine();
+            return searchKeyword;
+        }catch(Exception ex){
+            System.out.println("잘못된 값을 입력했습니다. ");
+            return null;
+        }
+    }
+
+    public void printBusinessCards(List<BusinessCard> businessCardList){
+        for(BusinessCard businessCard: businessCardList){
+            System.out.println(businessCard);
+            System.out.println("---------------------------------------------------------------");
+        }
+    }
+
+    public void printExitMessage(){
+        System.out.println("프로그램을 종료합니다. :-) ");
+    }
+
+    public void printErrorMessage(){
+        System.out.println("잘못된 입력입니다.");
+    }
+}