Spring Boot 入门、Spring Boot 配置、Web 开发、模板引擎、数据存储、数据缓存 案例更新

chapter-3-spring-boot-web/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <name>chapter-3-spring-boot-web</name>
+    <description>《Spring Boot 2.x 核心技术实战 - 上 基础篇》第 3 章《Web 开发》Demo</description>
+
+    <groupId>demo.springboot</groupId>
+    <artifactId>chapter-3-spring-boot-web</artifactId>
+    <version>1.0</version>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.0.0.BUILD-SNAPSHOT</version>
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+
+        <!-- Web 依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- 测试依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <!-- Spring Boot Maven 插件
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+            -->
+        </plugins>
+    </build>
+
+
+    <repositories>
+        <repository>
+            <id>spring-snapshots</id>
+            <name>Spring Snapshots</name>
+            <url>https://repo.spring.io/libs-snapshot</url>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
+
+</project>

chapter-3-spring-boot-web/src/main/java/demo/springboot/WebApplication.java

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+package demo.springboot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Spring Boot 应用启动类
+ *
+ * Created by bysocket on 26/09/2017.
+ */
+@SpringBootApplication
+public class WebApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(WebApplication.class, args);
+    }
+}

chapter-3-spring-boot-web/src/main/java/demo/springboot/domain/Book.java

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+package demo.springboot.domain;
+
+import java.io.Serializable;
+
+/**
+ * Book 实体类
+ *
+ * Created by bysocket on 27/09/2017.
+ */
+public class Book implements Serializable {
+
+    /**
+     * 编号
+     */
+    private Long id;
+
+    /**
+     * 书名
+     */
+    private String name;
+
+    /**
+     * 作者
+     */
+    private String writer;
+
+    /**
+     * 简介
+     */
+    private String introduction;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getWriter() {
+        return writer;
+    }
+
+    public void setWriter(String writer) {
+        this.writer = writer;
+    }
+
+    public String getIntroduction() {
+        return introduction;
+    }
+
+    public void setIntroduction(String introduction) {
+        this.introduction = introduction;
+    }
+}

chapter-3-spring-boot-web/src/main/java/demo/springboot/service/BookService.java

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+package demo.springboot.service;
+
+import demo.springboot.domain.Book;
+
+import java.util.List;
+
+/**
+ * Book 业务接口层
+ *
+ * Created by bysocket on 27/09/2017.
+ */
+public interface BookService {
+    /**
+     * 获取所有 Book
+     */
+    List<Book> findAll();
+
+    /**
+     * 新增 Book
+     *
+     * @param book {@link Book}
+     */
+    Book insertByBook(Book book);
+
+    /**
+     * 更新 Book
+     *
+     * @param book {@link Book}
+     */
+    Book update(Book book);
+
+    /**
+     * 删除 Book
+     *
+     * @param id 编号
+     */
+    Book delete(Long id);
+
+    /**
+     * 获取 Book
+     *
+     * @param id 编号
+     */
+    Book findById(Long id);
+}

chapter-3-spring-boot-web/src/main/java/demo/springboot/service/impl/BookServiceImpl.java

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+package demo.springboot.service.impl;
+
+import demo.springboot.domain.Book;
+import demo.springboot.service.BookService;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Book 业务层实现
+ *
+ * Created by bysocket on 27/09/2017.
+ */
+@Service
+public class BookServiceImpl implements BookService {
+
+    // 模拟数据库，存储 Book 信息
+    // 第五章《数据存储》会替换成 MySQL 存储
+    private static Map<Long, Book> BOOK_DB = new HashMap<>();
+
+    @Override
+    public List<Book> findAll() {
+        return new ArrayList<>(BOOK_DB.values());
+    }
+
+    @Override
+    public Book insertByBook(Book book) {
+        book.setId(BOOK_DB.size() + 1L);
+        BOOK_DB.put(book.getId(), book);
+        return book;
+    }
+
+    @Override
+    public Book update(Book book) {
+        BOOK_DB.put(book.getId(), book);
+        return book;
+    }
+
+    @Override
+    public Book delete(Long id) {
+        return BOOK_DB.remove(id);
+    }
+
+    @Override
+    public Book findById(Long id) {
+        return BOOK_DB.get(id);
+    }
+}

chapter-3-spring-boot-web/src/main/java/demo/springboot/web/BookController.java

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+package demo.springboot.web;
+
+import demo.springboot.domain.Book;
+import demo.springboot.service.BookService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * Book 控制层
+ *
+ * Created by bysocket on 27/09/2017.
+ */
+@RestController
+@RequestMapping(value = "/book")
+public class BookController {
+
+    @Autowired
+    BookService bookService;
+
+    /**
+     * 获取 Book 列表
+     * 处理 "/book" 的 GET 请求，用来获取 Book 列表
+     */
+    @RequestMapping(method = RequestMethod.GET)
+    public List<Book> getBookList() {
+        return bookService.findAll();
+    }
+
+    /**
+     * 获取 Book
+     * 处理 "/book/{id}" 的 GET 请求，用来获取 Book 信息
+     */
+    @RequestMapping(value = "/{id}", method = RequestMethod.GET)
+    public Book getBook(@PathVariable Long id) {
+        return bookService.findById(id);
+    }
+
+    /**
+     * 创建 Book
+     * 处理 "/book/create" 的 POST 请求，用来新建 Book 信息
+     * 通过 @RequestBody 绑定实体参数，也通过 @RequestParam 传递参数
+     */
+    @RequestMapping(value = "/create", method = RequestMethod.POST)
+    public Book postBook(@RequestBody Book book) {
+        return bookService.insertByBook(book);
+    }
+
+    /**
+     * 更新 Book
+     * 处理 "/update" 的 PUT 请求，用来更新 Book 信息
+     */
+    @RequestMapping(value = "/update", method = RequestMethod.PUT)
+    public Book putBook(@RequestBody Book book) {
+        return bookService.update(book);
+    }
+
+    /**
+     * 删除 Book
+     * 处理 "/book/{id}" 的 GET 请求，用来删除 Book 信息
+     */
+    @RequestMapping(value = "/delete/{id}", method = RequestMethod.DELETE)
+    public Book deleteBook(@PathVariable Long id) {
+        return bookService.delete(id);
+    }
+
+}

chapter-3-spring-boot-web/src/test/java/demo/springboot/WebApplicationTests.java

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+package demo.springboot;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class WebApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}