#1 -- Add simple mvc form
Anton Romanov
3 years ago
parent
0bf6947060
commit
e669750575
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package ru.ulstu.extractor.mvc;
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import org.springframework.http.HttpStatus;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.ResponseStatus;
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import org.springframework.web.servlet.ModelAndView;
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import ru.ulstu.extractor.mvc.model.EmailForm;
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import javax.servlet.http.HttpServletRequest;
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@Controller
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public class GitExtractorController {
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@GetMapping("/")
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public String indexForm(Model model) {
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model.addAttribute("emailForm", new EmailForm());
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return "index";
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}
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@PostMapping("/sendEmail")
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public String sendEmail(@ModelAttribute EmailForm emailForm, Model model) {
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if (emailForm.getTo().isEmpty()) {
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model.addAttribute("error", "'Кому' не должно быть пустым");
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return "index";
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}
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return "result";
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}
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@ExceptionHandler(Exception.class)
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@ResponseStatus(HttpStatus.NOT_FOUND)
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public ModelAndView handleResourceNotFoundException(HttpServletRequest req, Exception ex) {
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ModelAndView mav = new ModelAndView();
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mav.addObject("exception", ex);
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mav.addObject("url", req.getRequestURL());
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mav.setViewName("error");
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return mav;
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}
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}
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package ru.ulstu.extractor.mvc.model;
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public class EmailForm {
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private String subject;
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private String to;
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private String message;
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public String getSubject() {
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return subject;
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}
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public void setSubject(String subject) {
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this.subject = subject;
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}
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public String getTo() {
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return to;
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}
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public void setTo(String to) {
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this.to = to;
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}
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public String getMessage() {
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return message;
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}
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public void setMessage(String message) {
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this.message = message;
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}
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@Override
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public String toString() {
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return "EmailForm{" +
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"subject='" + subject + '\'' +
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", to='" + to + '\'' +
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", message='" + message + '\'' +
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'}';
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}
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}
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<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring4-4.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:th="http://www.thymeleaf.org">
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<!--<head th:substituteby="header :: copy"></head>-->
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<body>
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<h1>Support Friendly Error Page</h1>
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<!-- As we are using Thymeleaf, you might consider using
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${#httpServletRequest.requestURL}. But that returns the path
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to this error page. Hence we explicitly add the url to the
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Model in some of the example code. -->
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<p th:if="${url}">
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<b>Page:</b> <span th:text="${url}">Page URL</span>
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</p>
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<p th:if="${timestamp}" id='created'>
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<b>Occurred:</b> <span th:text="${timestamp}">Timestamp</span>
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</p>
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<p th:if="${status}">
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<b>Response Status:</b> <span th:text="${status}">status-code</span> <span
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th:if="${error}" th:text="'('+${error}+')'">error ...</span>
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</p>
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<p th:if="${exception}">
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<b>Exception:</b> <span th:text="${exception}">exception</span> <span
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</p>
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<p>Application has encountered an error. Please contact support on
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...</p>
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<p>Support may ask you to right click to view page source.</p>
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<!--
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// Hidden Exception Details - this is not a recommendation, but here is
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// how you could hide an exception in the page using Thymeleaf
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-->
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<div th:utext="'<!--'" th:remove="tag"></div>
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<div th:utext="'Failed URL: ' + ${url}" th:remove="tag">${url}</div>
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<div th:utext="'Exception: ' + ${exception.message}" th:remove="tag">${exception.message}</div>
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<ul th:remove="tag">
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<li th:each="ste : ${exception.stackTrace}" th:remove="tag"><span
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th:utext="${ste}" th:remove="tag">${ste}</span></li>
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</ul>
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<div th:utext="'-->'" th:remove="tag"></div>
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<div th:substituteby="footer :: copy"></div>
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</body>
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</html>
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<!DOCTYPE HTML>
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<html xmlns:th="http://www.thymeleaf.org">
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<head>
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<title>Простая обработка формы на Spring MVC</title>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
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</head>
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<body>
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<h1>Форма</h1>
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<form action="#" th:action="@{/sendEmail}" th:object="${emailForm}" method="post">
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<p style="color:red" th:text="${error}"></p>
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<table>
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<tr>
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<td>Тема:</td>
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<td><input type="text" th:field="*{subject}"/></td>
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</tr>
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<tr>
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<td>Кому:</td>
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<td><input type="text" th:field="*{to}"/></td>
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</tr>
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<tr>
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<td>Сообщение:</td>
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<td><textarea th:field="*{message}"/></td>
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</tr>
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<tr>
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<td colspan="2"><input type="submit" value="Отправить"/></td>
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</tr>
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</table>
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</form>
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</body>
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</html>
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<!DOCTYPE HTML>
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<html xmlns:th="http://www.thymeleaf.org">
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<head>
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<title>Простая обработка формы на Spring MVC</title>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
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</head>
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<body>
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<h1>Результат обработки формы</h1>
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<table>
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<tr>
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<td>Тема:</td>
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<td><p th:text="${emailForm.subject}"/></td>
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</tr>
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<tr>
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<td>Кому:</td>
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<td><p th:text="${emailForm.to}"/></td>
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</tr>
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<tr>
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<td>Сообщение:</td>
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<td><p th:text="${emailForm.message}"/></td>
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</tr>
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</table>
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<a href="/">Отправить другое сообщение</a>
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</body>
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</html>
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