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Spring Boot 2.0 新特性：配置绑定 2.0 全解析
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‎Chapter2-2-1/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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<groupId>com.didispace</groupId>
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<artifactId>Chapter2-2-1</artifactId>
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<version>1.0.0</version>
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<packaging>jar</packaging>
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<name>Chapter2-2-1</name>
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<description>Spring Boot 2 : Relaxed Binding</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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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter</artifactId>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>1.16.20</version>
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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>

‎Chapter2-2-1/src/main/java/com/didispace/Application.java

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package com.didispace;
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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.boot.context.properties.ConfigurationPropertiesBinding;
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import org.springframework.boot.context.properties.bind.Bindable;
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import org.springframework.boot.context.properties.bind.Binder;
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import org.springframework.context.ApplicationContext;
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import java.util.List;
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/**
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*
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* @author 程序猿DD
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* @version 1.0.0
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* @blog http://blog.didispace.com
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*
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*/
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@SpringBootApplication
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public class Application {
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public static void main(String[] args) {
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ApplicationContext context = SpringApplication.run(Application.class, args);
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Binder binder = Binder.get(context.getEnvironment());
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// 绑定简单配置
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FooProperties foo = binder.bind("com.didispace", Bindable.of(FooProperties.class)).get();
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System.out.println(foo.getFoo());
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// 绑定List配置
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List<String> post = binder.bind("com.didispace.post", Bindable.listOf(String.class)).get();
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System.out.println(post);
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List<PostInfo> posts = binder.bind("com.didispace.posts", Bindable.listOf(PostInfo.class)).get();
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System.out.println(posts);
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// 读取配置
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System.out.println(context.getEnvironment().containsProperty("com.didispace.database-platform"));
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System.out.println(context.getEnvironment().containsProperty("com.didispace.databasePlatform"));
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}
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}

‎Chapter2-2-1/src/main/java/com/didispace/FooProperties.java

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package com.didispace;
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import lombok.Data;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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@Data
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@ConfigurationProperties(prefix = "com.didispace")
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public class FooProperties {
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private String foo;
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private String databasePlatform;
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}

‎Chapter2-2-1/src/main/java/com/didispace/PostInfo.java

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package com.didispace;
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import lombok.Data;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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@Data
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@ConfigurationProperties
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public class PostInfo {
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private String title;
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private String content;
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}

‎Chapter2-2-1/src/main/resources/application.properties

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com.didispace.foo=bar
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com.didispace.database-platform=sql
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com.didispace.post[0]=Why Spring Boot
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com.didispace.post[1]=Why Spring Cloud
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com.didispace.posts[0].title=Why Spring Boot
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com.didispace.posts[0].content=It is perfect!
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com.didispace.posts[1].title=Why Spring Cloud
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com.didispace.posts[1].content=It is perfect too!

‎README.md

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- [腾讯云：3年时长最低265元/年](https://cloud.tencent.com/redirect.php?redirect=1005&cps_key=f6a8af1297bfac40b9d10ffa1270029a)
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- [阿里云：ECS云服务器2折起](https://s.click.taobao.com/t?e=m%3D2%26s%3Dzj4kbQ5lKukcQipKwQzePCperVdZeJviEViQ0P1Vf2kguMN8XjClAq9GNeKfy2AD4SaRmc4YmqYCxNLxWxqxDPY8Eqzf%2BUWbOTauL6DcROffvu81lbXO1DDVuRn8ddiDsEVVC24eqozO54LQ%2FVw1L9X5LHh3Z8M%2BWS6ALZVeqlk9XUfbPSJC%2F06deTzTIbffYpyF7ku%2BxKgGargQjSAC4C6cUF%2FXAmem)
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## 样例列表
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## Spring Boot 2.0 新特性学习
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**简介与概览**
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- [Spring Boot 2.0 正式发布，升还是不升呢？](http://blog.didispace.com/spring-boot-2-release/)
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- [Spring Boot 2.0 新特性和发展方向](http://blog.didispace.com/Spring-Boot-2-0-%E6%96%B0%E7%89%B9%E6%80%A7%E5%92%8C%E5%8F%91%E5%B1%95%E6%96%B9%E5%90%91/)
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- [Spring Boot 2.0 与 Java 9](http://blog.didispace.com/Spring-Boot-2.0%E4%B8%8EJava-9/)
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**新特性详解**
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- [Spring Boot 2.0 新特性（一）：配置绑定 2.0 全解析](http://localhost:4000/Spring-Boot-2-0-feature-1-relaxed-binding-2/)
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## Spring Boot 基础教程（基于1.3.x-1.5.x）
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#### 快速入门
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#### 工程配置
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- chapter2-1-1：[配置文件详解：自定义属性、随机数、多环境配置等](http://blog.didispace.com/springbootproperties/)
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- chapter2-2-1：[配置文件详解：自定义属性、随机数、多环境配置等](http://blog.didispace.com/springbootproperties/)
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#### Web开发
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