html 호출할 때 resources 없이 하기
servlet-context.xml
mapping 에서 resources를 지우자
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
registerForm.html
<form action(디폴트 자기자신) ="폼 데이터를 전송할 URL" method = "GET이 디폴트">
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.8.2/css/all.min.css" />
<style>
* { box-sizing:border-box; }
form {
width:400px;
height:600px;
display : flex;
flex-direction: column;
align-items:center;
position : absolute;
top:50%;
left:50%;
transform: translate(-50%, -50%) ;
border: 1px solid rgb(89,117,196);
border-radius: 10px;
}
.input-field {
width: 300px;
height: 40px;
border : 1px solid rgb(89,117,196);
border-radius:5px;
padding: 0 10px;
margin-bottom: 10px;
}
label {
width:300px;
height:30px;
margin-top :4px;
}
button {
background-color: rgb(89,117,196);
color : white;
width:300px;
height:50px;
font-size: 17px;
border : none;
border-radius: 5px;
margin : 20px 0 30px 0;
}
.title {
font-size : 50px;
margin: 40px 0 30px 0;
}
.msg {
height: 30px;
text-align:center;
font-size:16px;
color:red;
margin-bottom: 20px;
}
.sns-chk {
margin-top : 5px;
}
</style>
<title>Register</title>
</head>
<body>
<form>
<div class="title">Register</div>
<div id="msg" class="msg"> </div>
<label for="">아이디</label>
<input class="input-field" type="text" name="id" placeholder="8~12자리의 영대소문자와 숫자 조합">
<label for="">비밀번호</label>
<input class="input-field" type="text" name="pwd" placeholder="8~12자리의 영대소문자와 숫자 조합">
<label for="">이름</label>
<input class="input-field" type="text" name="name" placeholder="홍길동">
<label for="">이메일</label>
<input class="input-field" type="text" name="email" placeholder="example@fastcampus.co.kr">
<label for="">생일</label>
<input class="input-field" type="text" name="birth" placeholder="2020/12/31">
<div class="sns-chk">
<label><input type="checkbox" name="sns" value="facebook"/>페이스북</label>
<label><input type="checkbox" name="sns" value="kakaotalk"/>카카오톡</label>
<label><input type="checkbox" name="sns" value="instagram"/>인스타그램</label>
</div>
<button>회원 가입</button>
</form>
<script>
function formCheck(frm) {
var msg ='';
if(frm.id.value.length<3) {
setMessage('id의 길이는 3이상이어야 합니다.', frm.id);
return false;
}
return true;
}
function setMessage(msg, element){
document.getElementById("msg").innerHTML = `<i class="fa fa-exclamation-circle"> ${msg}</i>`;
if(element) {
element.select();
}
}
</script>
</body>
</html>
registerInfo.jsp
다수의 값은 paramValues 를 사용해 배열로 값을 받는다
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>id=${param.id}</h1>
<h1>pwd=${param.pwd}</h1>
<h1>name=${param.name}</h1>
<h1>email=${param.email}</h1>
<h1>birth=${param.birth}</h1>
<h1>sns=${paramValues.sns}</h1>
<h1>sns=${paramValues.sns[0]}</h1>
<h1>sns=${paramValues.sns[1]}</h1>
<h1>sns=${paramValues.sns[2]}</h1>
</body>
</html>
유효성 검사
javascript 를 이용해 onsubmit 값이 true 면 폼을 전송하고, false 면 전송하지 않는다
"return formCheck(this)" 는 원래
아래에 코드지만 태그 속성에서는 간략하게 쓴다
function formCheck(frm) {
var msg ='';
if(frm.id.value.length<3) {
setMessage('id의 길이는 3이상이어야 합니다.', frm.id);
return false;
}
return true;
}
<form action="/app/registerInfo.jsp" method="POST" onsubmit="return formCheck(this)">
<script>
function formCheck(frm) {
var msg ='';
if(frm.id.value.length<3) {
setMessage('id의 길이는 3이상이어야 합니다.', frm.id);
return false;
}
return true;
}
function setMessage(msg, element){
document.getElementById("msg").innerHTML = `<i class="fa fa-exclamation-circle"> ${msg}</i>`;
if(element) {
element.select();
}
}
</script>
새로고침 시 id 입력란에 커서 자동 선택하기
<input class="input-field" type="text" name="id" placeholder="8~12자리의 영대소문자와 숫자 조합" autofocus>
잘못 입력 된 값 선택하게 하기
function setMessage(msg, element){
document.getElementById("msg").innerHTML = `<i class="fa fa-exclamation-circle"> ${msg}</i>`;
if(element) {
element.select();
}
}
RegisterController.java
package com.fastcampus.app;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class RegisterController {
@RequestMapping("/register/add")
public String register() {
return "registerForm";
}
}
registerForm.jsp
컨트롤러로 호출 했을 때 ${msg} 은 EL이 아니라 JS6 의 Template Literal 이라 브라우저에서 인식 가능한데,
처음 서버에서는 EL로 인식해 빈 문자열로 나타낸다. 그래서 따옴표로 묶어준다
${'${msg}'}
function setMessage(msg, element){
document.getElementById("msg").innerHTML = `<i class="fa fa-exclamation-circle"> ${msg}</i>`;
if(element) {
element.select();
}
}
<%@ page contentType="text/html;charset=utf-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" %>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.8.2/css/all.min.css" />
<style>
* { box-sizing:border-box; }
form {
width:400px;
height:600px;
display : flex;
flex-direction: column;
align-items:center;
position : absolute;
top:50%;
left:50%;
transform: translate(-50%, -50%) ;
border: 1px solid rgb(89,117,196);
border-radius: 10px;
}
.input-field {
width: 300px;
height: 40px;
border : 1px solid rgb(89,117,196);
border-radius:5px;
padding: 0 10px;
margin-bottom: 10px;
}
label {
width:300px;
height:30px;
margin-top :4px;
}
button {
background-color: rgb(89,117,196);
color : white;
width:300px;
height:50px;
font-size: 17px;
border : none;
border-radius: 5px;
margin : 20px 0 30px 0;
}
.title {
font-size : 50px;
margin: 40px 0 30px 0;
}
.msg {
height: 30px;
text-align:center;
font-size:16px;
color:red;
margin-bottom: 20px;
}
.sns-chk {
margin-top : 5px;
}
</style>
<title>Register</title>
</head>
<body>
<form action="<c:url value="/register/save"/>" method="POST" onsubmit="return formCheck(this)">
<div class="title">Register</div>
<div id="msg" class="msg"> </div>
<label for="">아이디</label>
<input class="input-field" type="text" name="id" placeholder="8~12자리의 영대소문자와 숫자 조합" autofocus>
<label for="">비밀번호</label>
<input class="input-field" type="text" name="pwd" placeholder="8~12자리의 영대소문자와 숫자 조합">
<label for="">이름</label>
<input class="input-field" type="text" name="name" placeholder="홍길동">
<label for="">이메일</label>
<input class="input-field" type="text" name="email" placeholder="example@fastcampus.co.kr">
<label for="">생일</label>
<input class="input-field" type="text" name="birth" placeholder="2020/12/31">
<div class="sns-chk">
<label><input type="checkbox" name="sns" value="facebook"/>페이스북</label>
<label><input type="checkbox" name="sns" value="kakaotalk"/>카카오톡</label>
<label><input type="checkbox" name="sns" value="instagram"/>인스타그램</label>
</div>
<button>회원 가입</button>
</form>
<script>
function formCheck(frm) {
var msg ='';
if(frm.id.value.length<3) {
setMessage('id의 길이는 3이상이어야 합니다.', frm.id);
return false;
}
return true;
}
function setMessage(msg, element){
document.getElementById("msg").innerHTML = `<i class="fa fa-exclamation-circle"> ${'${msg}'}</i>`;
if(element) {
element.select();
}
}
</script>
</body>
</html>
<c:url >
context root 자동 추가("/app")
session id 자동 추가
<form action="<c:url value="/register/save"/>" method="POST" onsubmit="return formCheck(this)">
mapping 추가
package com.fastcampus.app;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class RegisterController {
@RequestMapping("/register/add")
public String register() {
return "registerForm";
}
@RequestMapping("/register/save")
public String save() {
return "registerInfo";
}
}
registerInfo.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>id=${param.id}</h1>
<h1>pwd=${param.pwd}</h1>
<h1>name=${param.name}</h1>
<h1>email=${param.email}</h1>
<h1>birth=${param.birth}</h1>
<h1>sns=${paramValues.sns}</h1>
<h1>sns=${paramValues.sns[0]}</h1>
<h1>sns=${paramValues.sns[1]}</h1>
<h1>sns=${paramValues.sns[2]}</h1>
</body>
</html>
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