Spring Boot 2.0 新特性：配置绑定 2.0 全解析

Author: dyc87112

Chapter2-2-1/pom.xml

@@ -0,0 +1,49 @@
+<?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>
+
+	<groupId>com.didispace</groupId>
+	<artifactId>Chapter2-2-1</artifactId>
+	<version>1.0.0</version>
+	<packaging>jar</packaging>
+
+	<name>Chapter2-2-1</name>
+	<description>Spring Boot 2 : Relaxed Binding</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.0.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<version>1.16.20</version>
+		</dependency>
+
+	</dependencies>
+	
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

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

@@ -0,0 +1,44 @@
+package com.didispace;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.properties.ConfigurationPropertiesBinding;
+import org.springframework.boot.context.properties.bind.Bindable;
+import org.springframework.boot.context.properties.bind.Binder;
+import org.springframework.context.ApplicationContext;
+
+import java.util.List;
+
+/**
+ *
+ * @author 程序猿DD
+ * @version 1.0.0
+ * @blog http://blog.didispace.com
+ *
+ */
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) {
+		ApplicationContext context = SpringApplication.run(Application.class, args);
+
+		Binder binder = Binder.get(context.getEnvironment());
+
+		// 绑定简单配置
+		FooProperties foo = binder.bind("com.didispace", Bindable.of(FooProperties.class)).get();
+		System.out.println(foo.getFoo());
+
+		// 绑定List配置
+		List<String> post = binder.bind("com.didispace.post", Bindable.listOf(String.class)).get();
+		System.out.println(post);
+
+		List<PostInfo> posts = binder.bind("com.didispace.posts", Bindable.listOf(PostInfo.class)).get();
+		System.out.println(posts);
+
+		// 读取配置
+		System.out.println(context.getEnvironment().containsProperty("com.didispace.database-platform"));
+		System.out.println(context.getEnvironment().containsProperty("com.didispace.databasePlatform"));
+
+	}
+
+}

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

@@ -0,0 +1,14 @@
+package com.didispace;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@Data
+@ConfigurationProperties(prefix = "com.didispace")
+public class FooProperties {
+
+    private String foo;
+
+    private String databasePlatform;
+
+}

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

@@ -0,0 +1,13 @@
+package com.didispace;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@Data
+@ConfigurationProperties
+public class PostInfo {
+
+    private String title;
+    private String content;
+
+}

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

@@ -0,0 +1,10 @@
+com.didispace.foo=bar
+com.didispace.database-platform=sql
+
+com.didispace.post[0]=Why Spring Boot
+com.didispace.post[1]=Why Spring Cloud
+
+com.didispace.posts[0].title=Why Spring Boot
+com.didispace.posts[0].content=It is perfect!
+com.didispace.posts[1].title=Why Spring Cloud
+com.didispace.posts[1].content=It is perfect too!

README.md

@@ -17,7 +17,19 @@
 - [腾讯云：3年时长最低265元/年](https://cloud.tencent.com/redirect.php?redirect=1005&cps_key=f6a8af1297bfac40b9d10ffa1270029a)
 - [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)
 
-## 样例列表
+## Spring Boot 2.0 新特性学习
+
+**简介与概览**
+
+- [Spring Boot 2.0 正式发布，升还是不升呢？](http://blog.didispace.com/spring-boot-2-release/)
+- [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/)
+- [Spring Boot 2.0 与 Java 9](http://blog.didispace.com/Spring-Boot-2.0%E4%B8%8EJava-9/)
+
+**新特性详解**
+
+- [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/)
+
+## Spring Boot 基础教程（基于1.3.x-1.5.x）
 
 #### 快速入门
 
@@ -27,6 +39,7 @@
 #### 工程配置
 
 - 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/)
+- 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/)
 
 #### Web开发