const express = require("express"); const app = express(); //npm install body-parser app.use(express.urlencoded({ extended: true })); //////////////////post방식 데이터 처리 //서버 listen const server = app.listen(3000, () => { console.log("Start Server: localhost:3000"); }); //__dirname: 현재 디렉토리 //page경로 설정 app.set("views", __dirname + "/views"); app.set("view engine", "ejs"); app.engine("html", require(..

collection_list @SpringBootApplication /// 서브패키지에 있는 @JavaConfig 자동생성함 public class Sample01BeanApplication { public static void main(String[] args) { ApplicationContext ctx=SpringApplication.run(Sample01BeanApplication.class, args); DBService service= ctx.getBean("myService", DBService.class); List list= service.list(); System.out.println(list.size()); for (String s : list) { //List data= dao.l..

springProfile application.properties 설정값에 따라 log 가 다르게 나옴 spring.profiles.active=prod #spring-profiles.active=dev banner public static void main(String[] args) { //SpringApplication.run(Boot03Banner01NobannerApplication.class, args); SpringApplication app = new SpringApplication(Boot03Banner01NobannerApplication.class); app.setBannerMode(Banner.Mode.OFF); //배너 끄기 app.run(args);//boot app 실행 } 한글..

property 이순신 echoBean public class EchoBean { String aaa; public String sayEcho() { return "hello"; } public EchoBean() { System.out.println("반드시 필요ㅘㄴ !!! 기본생ㅇ성자 호출"); } public String getAaa() { return aaa; } public void setMesg(String mesg) { System.out.println("setMesg(String mesg)호출"); this.aaa = mesg; } } main GenericXmlApplicationContext ctx = new GenericXmlApplicationContext("classpath:com..

3. Comparator -> ArrayList 정렬 System.out.println("======= itrator 이용 순회"); Iterator ite = list.iterator(); while(ite.hasNext()) { System.out.println(ite.next()); } System.out.println(list.size()); System.out.println(list); for (int i = 0; i < list.size(); i++) { Object o=list.get(i); String s = (String)o; System.out.println(s); } 3 [홍길동, 이순신, 홍길동] 홍길동 이순신 홍길동 System.out.println("길이(크기)"+list.siz..