// 스프링 MVC - HTTP 세션 사용하기 - 플젝활용할것 ★★★
(jsp에서 hidden 쓸 필요 없음)
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TEST URL: newevent/step1.do
1. com.spring.mvc.ex04.EventCreationController.java
@Controller
@SessionAttributes("eventForm") // 클래스에 SessionAttributes를 적용하고 세션으로 공유할 객체의 모델이름을 지정한다.
public class EventCreationController {
private static final String EVENT_CREATION_STEP1 = "event/creationStep1";
private static final String EVENT_CREATION_STEP2 = "event/creationStep2";
private static final String EVENT_CREATION_STEP3 = "event/creationStep3";
private static final String EVENT_CREATION_DONE = "event/creationDone";
@RequestMapping("/newevent/step1") // 메소드 호출 될때
public String step1(Model model) {
model.addAttribute("eventForm", new EventForm()); //eventForm이 model에 추가됨.
return EVENT_CREATION_STEP1; // 세션에 담는다.
}
@RequestMapping(value = "/newevent/step2", method = RequestMethod.POST)
public String step2(@ModelAttribute("eventForm") EventForm formData, BindingResult result) { // step1의 eventForm을 담는다.
new EventFormStep1Validator().validate(formData, result);
if (result.hasErrors())
return EVENT_CREATION_STEP1;
return EVENT_CREATION_STEP2;
}
@RequestMapping(value = "/newevent/step2", method = RequestMethod.GET)
public String step2FromStep3(@ModelAttribute("eventForm") EventForm formData) {
return EVENT_CREATION_STEP2;
}
@RequestMapping(value = "/newevent/step3", method = RequestMethod.POST)
public String step3(@ModelAttribute("eventForm") EventForm formData, BindingResult result) {
ValidationUtils.rejectIfEmpty(result, "target", "required");
if (result.hasErrors())
return EVENT_CREATION_STEP2;
return EVENT_CREATION_STEP3;
}
@RequestMapping(value = "/newevent/done", method = RequestMethod.POST)
public String done(@ModelAttribute("eventForm") EventForm formData, SessionStatus sessionStatus) {
sessionStatus.setComplete();
return EVENT_CREATION_DONE; // 최종 데이터가 담김.
}
}
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2. views/event/creationStep1.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%@ page import="com.spring.mvc.ex04.component.EventType" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html>
<html>
<head>
<title>이벤트 생성: ${project}</title>
</head>
<body>
<form:form commandName="eventForm" action="/springMvcSample/newevent/step2.do">
<label for="name">이벤트 명</label>:
<input type="text" name="name" id="name" value="${eventForm.name}"/>
<form:errors path="name"/><br/>
<label for="type">타입</label>:
<select name="type" id="type">
<option value="">선택하세요</option>
<c:forEach var="type" items="<%= EventType.values() %>">
<option value="${type}" ${eventForm.type == type ? 'selected' : ''}>${type}</option>
</c:forEach>
</select>
<form:errors path="type"/><br/>
<label>이벤트 기간</label>:
<input type="text" name="beginDate" value='<fmt:formatDate value="${eventForm.beginDate}" pattern="yyyyMMdd"/>'/>부터
<input type="text" name="endDate" value='<fmt:formatDate value="${eventForm.endDate}" pattern="yyyyMMdd"/>'/>까지
<form:errors path="beginDate"/><br/>
<form:errors path="endDate"/><br/>
<input type="submit" value="다음 단계로" />
</form:form>
세션 존재 여부: <%= session.getAttribute("eventForm") != null ? "존재" : "없음" %>
</body>
</html>
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3. views/event/creationStep2.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%@ page import="com.spring.mvc.ex04.component.EventType" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html>
<html>
<head>
<title>이벤트 생성</title>
</head>
<body>
<form:form commandName="eventForm" action="/springMvcSample/newevent/step3.do">
<label>적용 회원 등급</label>:
<label><input type="radio" name="target" value="all" ${eventForm.target == 'all' ? 'checked' : '' }/>모든 회원</label>
<label><input type="radio" name="target" value="premium" ${eventForm.target == 'premium' ? 'checked' : '' } />프리미엄 회원</label>
<form:errors path="target"/><br/>
<br/>
<a href="/springMvcSample/newevent/step1.do">[이전 단계로]</a>
<input type="submit" value="다음 단계로" />
</form:form>
세션 존재 여부: <%= session.getAttribute("eventForm") != null ? "존재" : "없음" %>
</body>
</html>step1
step2
step3
done
// 스프링 MVC - Exception 처리
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TEST URL: /cal/divide.do?op1=10&op2=0
* com.spring.mvc.ex05.CalculationController.java
@Controller
public class CalculationController {
@RequestMapping("/cal/add")
public String add(
@RequestParam("op1") int op1,
@RequestParam("op2") int op2,
Model model) {
model.addAttribute("result", op1 + op2);
return "cal/result";
}
@RequestMapping("/cal/divide")
public String divide(Model model,
@RequestParam("op1") int op1, @RequestParam("op2") int op2) {
model.addAttribute("result", op1 / op2);
return "cal/result";
}
@ExceptionHandler(RuntimeException.class) // error유형을 catch해서 처리.
public String handleException(HttpServletResponse response) {
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return "error/exception";
}
}
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* com.spring.mvc.ex05.CommonExceptionHandler ( 공통 exception 처리 handler )
@Controller
@ControllerAdvice("com.spring.mvc.ex05") // error처리 범위 설정.
public class CommonExceptionHandler {
@ExceptionHandler(RuntimeException.class)
public String handleException() {
return "error/commonException";
}
}
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* views/error/commonException.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%@ page isErrorPage="true" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<title>에러!!</title>
</head>
<body>
[공통 에러 화면] 작업 처리 도중 문제가 발생했습니다.
<%= exception %>
</body>
</html>
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* views/error/exception.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%@ page isErrorPage="true" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<title>에러 발생</title>
</head>
<body>
작업 처리 도중 문제가 발생했습니다.
<%= exception %>
</body>
</html>
// View 구현 - JSP를 이용한 View 구현
// select 태그를 위한 커스텀 태그
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* TEST URL: auth/login2.do
* com.spring.mvc.ex06.LoginController.java
@Controller("LoginController2")
@RequestMapping("/auth/login2")
public class LoginController {
private static final String LOGIN_FORM = "auth/loginForm2";
@Autowired
private Authenticator authenticator;
@ModelAttribute("jobCodes")
public List<Code> jobCodes() {
return Arrays.asList(
new Code("1", "운동선수"),
new Code("2", "프로그래머"),
new Code("3", "예술가"),
new Code("4", "작가")
);
}
@ModelAttribute("loginTypes")
protected List<String> referenceData() {
List<String> loginTypes = new ArrayList<String>();
loginTypes.add("일반회원");
loginTypes.add("기업회원");
loginTypes.add("헤드헌터회원");
return loginTypes;
}
@RequestMapping(method = RequestMethod.GET)
public String loginForm(LoginCommand loginCommand) {
loginCommand.setSecurityLevel(SecurityLevel.HIGH);
return LOGIN_FORM;
}
@RequestMapping(method = RequestMethod.POST)
public String login(@Valid LoginCommand loginCommand, Errors errors,
HttpServletRequest request) {
if (errors.hasErrors()) {
return LOGIN_FORM;
}
try {
Auth auth = authenticator.authenticate(loginCommand.getEmail(), loginCommand.getPassword());
HttpSession session = request.getSession();
session.setAttribute("auth", auth);
return "redirect:/index.jsp";
} catch (AuthenticationException ex) {
errors.reject("invalidIdOrPassword");
return LOGIN_FORM;
}
}
@InitBinder
protected void initBinder(WebDataBinder binder) {
binder.setValidator(new LoginCommandValidator());
}
}
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* views/auth/loginForm2.jsp
<!DOCTYPE html>
<html>
<head><title><spring:message code="login.form.title"/></title></head>
<body>
<form:form commandName="loginCommand">
<form:hidden path="securityLevel"/>
<form:errors element="div" />
<p>
<label for="email"><spring:message code="email" /></label>:
<input type="text" name="email" id="email" value="${loginCommand.email}">
<form:errors path="email"/>
</p>
<p>
<label for="password"><spring:message code="password" /></label>:
<input type="password" name="password" id="password">
<form:errors path="password"/>
</p>
<p>
<label for="loginType"><spring:message code="login.form.type" /></label>
<form:select path="loginType" items="${loginTypes}" />
<form:select path="jobCode" items="${jobCodes}" itemLabel="label" itemValue="code" />
</p>
<input type="submit" value="<spring:message code="login.form.login" />">
</form:form>
<ul>
<li><spring:message code="login.form.help" /></li>
</ul>
</body>
</html>
// View 구현 - Locale 처리
* TEST URL
changeLanguage.do?lang=en
changeLanguage2.do?lang=en
changeLanguage3.do?lang=en
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* com.spring.mvc.ex07.LocaleChangeController.java
@Controller
public class LocaleChangeController {
@Autowired(required=false)
private LocaleResolver localeResolver;
@RequestMapping("/changeLanguage")
public String change(@RequestParam("lang") String language,
HttpServletRequest request, HttpServletResponse response, HttpSession session) {
Locale locale = new Locale(language);
localeResolver.setLocale(request, response, locale);
return "locale/locale";
}
public void setLocaleResolver(LocaleResolver localeResolver) {
this.localeResolver = localeResolver;
}
}
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* com.spring.mvc.ex07.LocaleChangeController2.java
@Controller
public class LocaleChangeController2 {
@RequestMapping("/changeLanguage2")
public String change(@RequestParam("lang") String language,
HttpServletRequest request, HttpServletResponse response) {
Locale locale = new Locale(language);
LocaleResolver localeResolver = RequestContextUtils.getLocaleResolver(request);
localeResolver.setLocale(request, response, locale);
return "locale/locale";
}
}
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* com.spring.mvc.ex07.LocaleChangeController3.java
@Controller
public class LocaleChangeController3 {
@RequestMapping("/changeLanguage3")
public String change(HttpServletRequest request, HttpServletResponse response) {
return "locale/locale2";
}
}
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* views/locale/locale.jsp
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
Local Test: <spring:message code="email" />
</body>
</html>
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* views/locale/locale2.jsp
<!DOCTYPE html >
<html>
<head>
<meta charset="UTF-8">
<title><spring:message code="site.title" text="Member Info" /></title>
</head>
<body>
<a href="${pageContext.request.contextPath }/changeLanguage3.do?lang=ko">한국어</a>
<a href="${pageContext.request.contextPath }/changeLanguage3.do?lang=en">ENGLISH</a>
<h1><spring:message code="site.title" text="Member Info" /></h1>
<p><spring:message code="site.name" text="no name" /> : <spring:message code="name" text="no name" /></p>
<p><spring:message code="site.job" text="no job" /> : <spring:message code="job" text="no job" /></p>
<input type=button value="<spring:message code='btn.send' />" />
<input type=button value="<spring:message code='btn.cancel' />" />
<input type=button value="<spring:message code='btn.finish' />" />
</body>
</html>
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