Spring Boot 2.4 版本前后的配置分组功能

Author: dyc87112

2.x/chapter1-3/.gitignore

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+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
+
+### VS Code ###
+.vscode/

2.x/chapter1-3/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>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.4.1</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.didispace</groupId>
+	<artifactId>chapter1-3</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>chapter1-3</name>
+	<description>Demo project for Spring Boot</description>
+
+	<properties>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<scope>provided</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

2.x/chapter1-3/src/main/java/com/didispace/chapter13/Chapter13Application.java

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+package com.didispace.chapter13;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+
+@SpringBootApplication
+public class Chapter13Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Chapter13Application.class, args);
+    }
+
+    @Slf4j
+    @RestController
+    static class HelloController {
+
+        @Value("${db:}")
+        private String db;
+
+        @Value("${mq:}")
+        private String mq;
+
+        @RequestMapping("/")
+        public String index() {
+            log.info("db：" + db);
+            log.info("mq：" + mq);
+            return "";
+        }
+
+    }
+
+}

2.x/chapter1-3/src/main/resources/application.yaml

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+# 2.4之前的配置
+#spring:
+#  profiles:
+#    active: "dev"
+#
+#---
+#spring.profiles: "dev"
+#spring.profiles.include: "dev-db,dev-mq"
+#
+#---
+#spring.profiles: "dev-db"
+#
+#db: dev-db.didispace.com
+#
+#---
+#spring.profiles: "dev-mq"
+#
+#mq: dev-mq.didispace.com
+#
+#---
+
+#2.4之后的配置
+# 默认激活dev配置
+spring:
+  profiles:
+    active: "dev"
+    group:
+      "dev": "dev-db,dev-mq"
+      "prod": "prod-db,prod-mq"
+
+---
+spring:
+  config:
+    activate:
+      on-profile: "dev-db"
+
+db: dev-db.didispace.com
+
+---
+spring:
+  config:
+    activate:
+      on-profile: "dev-mq"
+
+mq: dev-mq.didispace.com
+
+---
+spring:
+  config:
+    activate:
+      on-profile: "prod-db"
+
+db: prod-db.didispace.com
+
+---
+spring:
+  config:
+    activate:
+      on-profile: "prod-mq"
+
+mq: prod-mq.didispace.com