Spring Boot 2.0 新特性：配置绑定 2.0 全解析

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

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+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

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+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

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