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add spring-boot-web-thymeleaf
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‎README.md

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@@ -17,7 +17,8 @@ Spring Boot 使用的各种示例，以最简单、最实用为标准
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- [spring-boot-banner](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-banner)：Spring Boot 定制 Banner 示例
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- [spring-boot-docker](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-banner)：使用 Docker 部署 Spring Boot 示例
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- [dockercompose-springboot-mysql-nginx](https://github.com/ityouknow/spring-boot-examples/tree/master/dockercompose-springboot-mysql-nginx) ：Docker Compose + Spring Boot + Nginx + Mysql 示例
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- [spring-boot-commandLineRunner](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-commandLineRunner) ：Spring Boot 使用 commandLineRunner 实现项目启动时资源初始化示例
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- [spring-boot-commandLineRunner](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-commandLineRunner) ：Spring Boot 使用 commandLineRunner 实现项目启动时资源初始化示例
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- [spring-boot-web-thymeleaf](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-web-thymeleaf) ：Spring Boot 使用 thymeleaf 实现增删改查示例
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**参考文章**

‎README_EN.md

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@@ -16,7 +16,9 @@ Spring Boot Examples, Use the simplest and most useful scene demo.
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- [spring-boot-banner](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-banner)：Spring Boot Customized Banner
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- [spring-boot-docker](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-banner)：Spring Boot with Docker
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- [dockercompose-springboot-mysql-nginx](https://github.com/ityouknow/spring-boot-examples/tree/master/dockercompose-springboot-mysql-nginx) ：Docker Compose + Spring Boot + Nginx + Mysql example
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- [spring-boot-commandLineRunner](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-commandLineRunner) ：Example of resource initialization at project startup using Spring Boot and commandLineRunner
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- [spring-boot-commandLineRunner](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-commandLineRunner) ：Example of resource initialization at project startup using Spring Boot and commandLineRunner
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- [spring-boot-web-thymeleaf](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-web-thymeleaf) ：Spring Boot uses thymeleaf to implement addition, deletion, and modification
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‎spring-boot-web-thymeleaf/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>spring-boot-web-thymeleaf</artifactId>
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<name>Spring Boot Web thymeleaf Sample</name>
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<description>Spring Boot Web thymeleaf Sample</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.0.0.RELEASE</version>
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</parent>
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<dependencies>
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<!-- Compile -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-thymeleaf</artifactId>
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</dependency>
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<!-- Test -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>

‎spring-boot-web-thymeleaf/src/main/java/com/neo/ThymeleafApplication.java

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package com.neo;
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import com.neo.model.Message;
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import com.neo.repository.InMemoryMessageRepository;
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import com.neo.repository.MessageRepository;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.Bean;
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import org.springframework.core.convert.converter.Converter;
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@SpringBootApplication
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public class ThymeleafApplication {
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@Bean
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public MessageRepository messageRepository() {
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return new InMemoryMessageRepository();
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}
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@Bean
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public Converter<String, Message> messageConverter() {
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return new Converter<String, Message>() {
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@Override
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public Message convert(String id) {
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return messageRepository().findMessage(Long.valueOf(id));
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}
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};
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}
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public static void main(String[] args) {
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SpringApplication.run(ThymeleafApplication.class, args);
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}
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}

‎spring-boot-web-thymeleaf/src/main/java/com/neo/controller/MessageController.java

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package com.neo.controller;
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import javax.validation.Valid;
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import com.neo.model.Message;
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import com.neo.repository.MessageRepository;
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import org.springframework.stereotype.Controller;
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import org.springframework.validation.BindingResult;
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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.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.servlet.ModelAndView;
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import org.springframework.web.servlet.mvc.support.RedirectAttributes;
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@Controller
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@RequestMapping("/")
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public class MessageController {
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private final MessageRepository messageRepository;
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public MessageController(MessageRepository messageRepository) {
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this.messageRepository = messageRepository;
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}
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@GetMapping
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public ModelAndView list() {
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Iterable<Message> messages = this.messageRepository.findAll();
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return new ModelAndView("messages/list", "messages", messages);
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}
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@GetMapping("{id}")
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public ModelAndView view(@PathVariable("id") Message message) {
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return new ModelAndView("messages/view", "message", message);
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}
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@GetMapping(params = "form")
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public String createForm(@ModelAttribute Message message) {
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return "messages/form";
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}
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@PostMapping
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public ModelAndView create(@Valid Message message, BindingResult result,
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RedirectAttributes redirect) {
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if (result.hasErrors()) {
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return new ModelAndView("messages/form", "formErrors", result.getAllErrors());
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}
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message = this.messageRepository.save(message);
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redirect.addFlashAttribute("globalMessage", "Successfully created a new message");
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return new ModelAndView("redirect:/{message.id}", "message.id", message.getId());
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}
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@RequestMapping("foo")
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public String foo() {
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throw new RuntimeException("Expected exception in controller");
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}
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@GetMapping(value = "delete/{id}")
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public ModelAndView delete(@PathVariable("id") Long id) {
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this.messageRepository.deleteMessage(id);
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Iterable<Message> messages = this.messageRepository.findAll();
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return new ModelAndView("messages/list", "messages", messages);
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}
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@GetMapping(value = "modify/{id}")
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public ModelAndView modifyForm(@PathVariable("id") Message message) {
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return new ModelAndView("messages/form", "message", message);
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}
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}

‎spring-boot-web-thymeleaf/src/main/java/com/neo/model/Message.java

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package com.neo.model;
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import java.util.Calendar;
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import javax.validation.constraints.NotEmpty;
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public class Message {
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private Long id;
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@NotEmpty(message = "Text is required.")
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private String text;
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@NotEmpty(message = "Summary is required.")
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private String summary;
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private Calendar created = Calendar.getInstance();
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public Long getId() {
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return this.id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public Calendar getCreated() {
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return this.created;
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}
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public void setCreated(Calendar created) {
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this.created = created;
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}
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public String getText() {
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return this.text;
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}
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public void setText(String text) {
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this.text = text;
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}
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public String getSummary() {
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return this.summary;
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}
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public void setSummary(String summary) {
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this.summary = summary;
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}
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}

‎spring-boot-web-thymeleaf/src/main/java/com/neo/repository/InMemoryMessageRepository.java

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package com.neo.repository;
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import com.neo.model.Message;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ConcurrentMap;
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import java.util.concurrent.atomic.AtomicLong;
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public class InMemoryMessageRepository implements MessageRepository {
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private static AtomicLong counter = new AtomicLong();
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private final ConcurrentMap<Long, Message> messages = new ConcurrentHashMap<>();
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@Override
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public Iterable<Message> findAll() {
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return this.messages.values();
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}
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@Override
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public Message save(Message message) {
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Long id = message.getId();
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if (id == null) {
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id = counter.incrementAndGet();
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message.setId(id);
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}
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this.messages.put(id, message);
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return message;
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}
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@Override
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public Message findMessage(Long id) {
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return this.messages.get(id);
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}
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@Override
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public void deleteMessage(Long id) {
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this.messages.remove(id);
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}
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}

‎spring-boot-web-thymeleaf/src/main/java/com/neo/repository/MessageRepository.java

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package com.neo.repository;
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import com.neo.model.Message;
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public interface MessageRepository {
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Iterable<Message> findAll();
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Message save(Message message);
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Message findMessage(Long id);
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void deleteMessage(Long id);
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}

‎spring-boot-web-thymeleaf/src/main/resources/application.properties

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# Allow Thymeleaf templates to be reloaded at dev time
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spring.thymeleaf.cache: false
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server.tomcat.access_log_enabled: true
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server.tomcat.basedir: target/tomcat

‎spring-boot-web-thymeleaf/src/main/resources/logback.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<configuration>
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<include resource="org/springframework/boot/logging/logback/base.xml"/>
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<!-- logger name="org.springframework" level="DEBUG"/-->
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</configuration>

‎spring-boot-web-thymeleaf/src/main/resources/static/css/bootstrap.min.css

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‎spring-boot-web-thymeleaf/src/main/resources/static/favicon.ico

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‎spring-boot-web-thymeleaf/src/main/resources/templates/fragments.html

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<!DOCTYPE html>
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<html xmlns:th="http://www.thymeleaf.org">
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<head th:fragment="head (title)">
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<title th:text="${title}">Fragments</title>
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<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}"
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href="../../css/bootstrap.min.css" />
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</head>
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<body>
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<div class="container">
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<nav th:fragment="navbar" class="navbar navbar-dark bg-primary">
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<a class="navbar-brand" href="http://www.ityouknow.com">Ityouknow</a>
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<ul class="navbar-nav mr-auto mt-2 mt-lg-0">
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<li class="nav-item"><a class="nav-link" th:href="@{/}" href="messages.html">Messages</a></li>
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</ul>
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</nav>
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</div>
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</body>
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</html>

‎spring-boot-web-thymeleaf/src/main/resources/templates/messages/form.html

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<!DOCTYPE html>
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<html xmlns:th="http://www.thymeleaf.org">
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<head th:replace="fragments :: head(title=~{::title/text()})">
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<title>Messages : Create</title>
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</head>
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<body>
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<div class="container">
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<div th:replace="fragments :: navbar"></div>
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<div class="float-right mt-2">
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<a class="btn btn-primary btn-sm" th:href="@{/}" href="messages.html"> Messages </a>
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</div>
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<h4 class="float-left mt-2">Messages : Create</h4>
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<div class="clearfix"></div>
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<form id="messageForm" th:action="@{/(form)}" th:object="${message}" action="#" method="post">
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<div th:if="${#fields.hasErrors('*')}" class="alert alert-danger" role="alert">
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<p th:each="error : ${#fields.errors('*')}" class="m-0" th:text="${error}">Validation error</p>
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</div>
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<input type="hidden" th:field="*{id}" th:class="${'form-control' + (#fields.hasErrors('id') ? ' is-invalid' : '')}"/>
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<div class="form-group">
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<label for="summary">Summary</label>
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<input type="text" th:field="*{summary}" th:class="${'form-control' + (#fields.hasErrors('summary') ? ' is-invalid' : '')}">
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</div>
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<div class="form-group">
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<label for="text">Message</label>
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<textarea th:field="*{text}" th:class="${'form-control' + (#fields.hasErrors('text') ? ' is-invalid' : '')}"></textarea>
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</div>
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<button type="submit" class="btn btn-primary">Submit</button>
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</form>
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</div>
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</body>
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</html>

‎spring-boot-web-thymeleaf/src/main/resources/templates/messages/list.html

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<!DOCTYPE html>
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<html xmlns:th="http://www.thymeleaf.org">
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<head th:replace="fragments :: head(title=~{::title/text()})">
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<title>Messages : View all</title>
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</head>
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<body>
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<div class="container">
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<div th:replace="fragments :: navbar"></div>
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<div class="float-right mt-2">
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<a class="btn btn-primary btn-sm" href="form.html" th:href="@{/(form)}">Create Message</a>
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</div>
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<h4 class="float-left mt-2">Messages : View all</h4>
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<table class="table table-bordered table-striped">
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<thead>
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<tr>
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<th>ID</th>
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<th>Created</th>
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<th>Summary</th>
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</tr>
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</thead>
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<tbody>
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<tr th:if="${messages.empty}">
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<td colspan="3">No messages</td>
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</tr>
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<tr th:each="message : ${messages}">
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<td th:text="${message.id}">1</td>
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<td th:text="${#calendars.format(message.created)}">July 11,
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2012 2:17:16 PM CDT</td>
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<td><a href="view.html" th:href="@{'/' + ${message.id}}"
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th:text="${message.summary}"> The summary </a></td>
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</tr>
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</tbody>
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</table>
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</div>
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</body>
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</html>

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