$$config title: JAVA 텍스트 게시판 만들기 (21-12-01) keywords: - IT - JAVA - 코딩 $$ # 코드 (searchKeyword / 검색 기능까지 완성) ```java package com.yhw.exam.board; import java.util.*; public class Main { static void makeTestData(List

list) { for (int i = 0; i < 50; i++) { int id = i + 1; list.add((new Article(id, "제목" + id, "내용" + id))); } list.add((new Article(555, "안녕", "ㅋㅋ"))); list.add((new Article(556, "ㅋㅋ", "안녕"))); } public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("== 게시판 v 0.1 =="); System.out.println("== 프로그램 시작 =="); int articlesLastId = 0; List

articles = new ArrayList<>(); List

filteredArticles1 = new ArrayList<>(); List

filteredArticles2 = new ArrayList<>(); makeTestData(articles); if (articles.size() > 0) { articlesLastId = articles.get(articles.size() - 1).id; } while (true) { System.out.printf("명령) "); String cmd = sc.nextLine(); Rq rq = new Rq(cmd); Map params = rq.getParams(); String searchKeyword = params.get("searchKeyword"); if (cmd.equals("exit")) { break; } else if (rq.getUrlPath().equals("/usr/article/write")) { System.out.println("- 게시물 등록 -"); System.out.printf("제목 : "); String title = sc.nextLine(); System.out.printf("내용 : "); String body = sc.nextLine(); Article article = new Article(); int id = articlesLastId + 1; articlesLastId = id; article.id = id; article.title = title; article.body = body; System.out.println("생성된 게시물 객체 : " + article); System.out.println(id + "번 게시물이 입력 되었습니다."); articles.add(article); } else if (rq.getUrlPath().equals("/usr/article/detail")) { if (params.containsKey("id") == false) { System.out.println("id를 입력해주세요."); continue; } int id = 0; try { id = Integer.parseInt(params.get("id")); } catch (NumberFormatException e) { System.out.println("id를 정수형태로 입력해주세요."); continue; } if (id > articles.size()) { System.out.println("게시물이 존재하지 않습니다."); continue; } Article article = articles.get(id - 1); System.out.println("- 게시물 상세 내용 -"); System.out.println("번호 : " + article.id); System.out.println("제목 : " + article.title); System.out.println("내용 : " + article.body); } else if (rq.getUrlPath().equals("/usr/article/list")) { System.out.println("- 게시물 리스트 -"); System.out.println("---------------"); System.out.println("번호 / 제목"); System.out.println("---------------"); boolean orderByIdDesc = true; if (params.containsKey("orderBy") && params.get("orderBy").equals("idAsc")) { orderByIdDesc = false; } if (orderByIdDesc && searchKeyword == null) { //내림차순 출력 for (int i = articles.size() - 1; i >= 0; i--) { Article article = articles.get(i); System.out.printf(" %d / %s \n", article.id, article.title); } } else if (searchKeyword == null) { //오름차순 출력 for (Article article : articles) { System.out.printf(" %d / %s \n", article.id, article.title); } } if (params.containsKey("searchKeyword")) { for (Article article : articles) { if (article.title.contains(searchKeyword) || article.body.contains(searchKeyword)) { filteredArticles2.add(article); System.out.printf(" %d / %s %s \n", article.id, article.title, article.body); } } } } else { System.out.printf("입력 받은 명령어 : %s\n", cmd); } } System.out.println("== 프로그램 종료 =="); } } class Article { int id; String title; String body; public Article() { } public Article(int id, String title, String body) { this.id = id; this.title = title; this.body = body; } @Override public String toString() { return String.format("{id : %d, title : \"%s\", body : \"%s\"}", id, title, body); } } class Rq { private String url; private String getPath; private Map params; Rq(String url) { this.url = url; getPath = Util.getUrlPathFromUrl(this.url); params = Util.getParamsFromUrl(this.url); } public Map getParams() { return params; } public String getUrlPath() { return getPath; } } class Util { static Map getParamsFromUrl(String url) { Map params = new HashMap<>(); String[] urlBits = url.split("\\?", 2); if (urlBits.length == 1) { return params; } String queryStr = urlBits[1]; for (String bit : queryStr.split("&")) { String[] bitBits = bit.split("=", 2); if (bitBits.length == 1) { continue; } params.put(bitBits[0], bitBits[1]); } return params; } static String getUrlPathFromUrl(String url) { return url.split("\\?", 2)[0]; } } ```