增加 spring cloud alibaba nacos 配置中心

README.md

@@ -124,6 +124,7 @@
 
 ## Spring Cloud Alibaba 全家桶
 
+* 《芋道 Spring Cloud Alibaba 介绍》
 * [《芋道 Spring Cloud Alibaba 注册中心 Nacos 入门》](http://www.iocoder.cn/Spring-Cloud-Alibaba/Nacos-Discovery/?github) 对应 [labx-01](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-01)
 * 《芋道 Spring Cloud Alibaba 服务调用 Dubbo 入门》
 * [《芋道 Spring Cloud Alibaba 服务容错 Sentinel 入门》](http://www.iocoder.cn/Spring-Cloud-Alibaba/Sentinel/?github) 对应 [labx-04](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-04)

labx-03/labx-03-sc-feign-demo04-provider/target/classes/application.yaml

@@ -1,12 +0,0 @@
-spring:
-  application:
-    name: demo-provider # Spring 应用名
-  cloud:
-    nacos:
-      # Nacos 作为注册中心的配置项，对应 NacosDiscoveryProperties 配置类
-      discovery:
-        server-addr: 127.0.0.1:8848 # Nacos 服务器地址
-
-server:
-  port: ${random.int[10000,19999]}  # 服务器端口。默认为 8080
-#  port: 18080  # 服务器端口。默认为 8080

labx-05/labx-05-sca-nacos-config-auto-refresh/pom.xml

@@ -12,6 +12,8 @@
     <artifactId>labx-05-sca-nacos-config-auto-refresh</artifactId>
 
     <properties>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
         <spring.boot.version>2.2.4.RELEASE</spring.boot.version>
         <spring.cloud.version>Hoxton.SR1</spring.cloud.version>
         <spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version>

labx-05/labx-05-sca-nacos-config-auto-refresh/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/config/OrderProperties.java

@@ -4,7 +4,6 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.stereotype.Component;
 
 @Component
-//@NacosConfigurationProperties(prefix = "order", dataId = "${nacos.config.data-id}", type = ConfigType.YAML)
 @ConfigurationProperties(prefix = "order")
 public class OrderProperties {
 
@@ -18,11 +17,6 @@ public class OrderProperties {
      */
     private Integer createFrequencySeconds;
 
-//    /**
-//     * 配置描述
-//     */
-//    private String desc;
-
     public Integer getPayTimeoutSeconds() {
         return payTimeoutSeconds;
     }

labx-05/labx-05-sca-nacos-config-auto-refresh/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/controller/DemoController.java

@@ -2,8 +2,11 @@ package cn.iocoder.springcloudalibaba.labx5.nacosdemo.controller;
 
 import cn.iocoder.springcloudalibaba.labx5.nacosdemo.config.OrderProperties;
 import com.alibaba.fastjson.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
@@ -12,6 +15,7 @@ import java.util.Map;
 
 @RestController
 @RequestMapping("/demo")
+@RefreshScope
 public class DemoController {
 
     @Autowired
@@ -39,4 +43,11 @@ public class DemoController {
                 .fluentPut("createFrequencySeconds", createFrequencySeconds);
     }
 
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @GetMapping("/logger")
+    public void logger() {
+        logger.debug("[logger][测试一下]");
+    }
+
 }

labx-05/labx-05-sca-nacos-config-auto-refresh/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/listener/DemoEnvironmentChangeListener.java

@@ -0,0 +1,26 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo.listener;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
+import org.springframework.context.ApplicationListener;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.stereotype.Component;
+
+@Component
+public class DemoEnvironmentChangeListener implements ApplicationListener<EnvironmentChangeEvent> {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @Autowired
+    private ConfigurableEnvironment environment;
+
+    @Override
+    public void onApplicationEvent(EnvironmentChangeEvent event) {
+        for (String key : event.getKeys()) {
+            logger.info("[onApplicationEvent][key({}) 最新 value 为 {}]", key, environment.getProperty(key));
+        }
+    }
+
+}

labx-05/labx-05-sca-nacos-config-auto-refresh/target/classes/bootstrap.yaml

@@ -0,0 +1,13 @@
+spring:
+  application:
+    name: demo-application
+
+  cloud:
+    nacos:
+      # Nacos Config 配置项，对应 NacosConfigProperties 配置属性类
+      config:
+        server-addr: 127.0.0.1:8848 # Nacos 服务器地址
+        namespace: # 使用的 Nacos 的命名空间，默认为 null
+        group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+        name: # 使用的 Nacos 配置集的 dataId，默认为 spring.application.name
+        file-extension: yaml # 使用的 Nacos 配置集的 dataId 的文件拓展名，同时也是 Nacos 配置集的配置格式，默认为 properties

labx-05/labx-05-sca-nacos-config-demo-actuator/pom.xml

@@ -0,0 +1,70 @@
+<?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">
+    <parent>
+        <artifactId>labx-05</artifactId>
+        <groupId>cn.iocoder.springboot.labs</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>labx-05-sca-nacos-config-demo-actuator</artifactId>
+
+    <properties>
+        <spring.boot.version>2.2.4.RELEASE</spring.boot.version>
+        <spring.cloud.version>Hoxton.SR1</spring.cloud.version>
+        <spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version>
+    </properties>
+
+    <!--
+        引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
+        在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
+     -->
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-starter-parent</artifactId>
+                <version>${spring.boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring.cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>com.alibaba.cloud</groupId>
+                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
+                <version>${spring.cloud.alibaba.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- 引入 Spring Cloud Alibaba Nacos Config 相关依赖，将 Nacos 作为配置中心，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
+        </dependency>
+
+        <!-- 实现对 Actuator 的自动化配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

labx-05/labx-05-sca-nacos-config-demo-actuator/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/DemoApplication.java

@@ -0,0 +1,13 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DemoApplication.class);
+    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-actuator/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/config/OrderProperties.java

@@ -0,0 +1,53 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+@Component
+//@NacosConfigurationProperties(prefix = "order", dataId = "${nacos.config.data-id}", type = ConfigType.YAML)
+@ConfigurationProperties(prefix = "order")
+public class OrderProperties {
+
+    /**
+     * 订单支付超时时长，单位：秒。
+     */
+    private Integer payTimeoutSeconds;
+
+    /**
+     * 订单创建频率，单位：秒
+     */
+    private Integer createFrequencySeconds;
+
+//    /**
+//     * 配置描述
+//     */
+//    private String desc;
+
+    public Integer getPayTimeoutSeconds() {
+        return payTimeoutSeconds;
+    }
+
+    public OrderProperties setPayTimeoutSeconds(Integer payTimeoutSeconds) {
+        this.payTimeoutSeconds = payTimeoutSeconds;
+        return this;
+    }
+
+    public Integer getCreateFrequencySeconds() {
+        return createFrequencySeconds;
+    }
+
+    public OrderProperties setCreateFrequencySeconds(Integer createFrequencySeconds) {
+        this.createFrequencySeconds = createFrequencySeconds;
+        return this;
+    }
+
+//    public String getDesc() {
+//        return desc;
+//    }
+//
+//    public OrderProperties setDesc(String desc) {
+//        this.desc = desc;
+//        return this;
+//    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-actuator/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/controller/DemoController.java

@@ -0,0 +1,42 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo.controller;
+
+import cn.iocoder.springcloudalibaba.labx5.nacosdemo.config.OrderProperties;
+import com.alibaba.fastjson.JSONObject;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Map;
+
+@RestController
+@RequestMapping("/demo")
+public class DemoController {
+
+    @Autowired
+    private OrderProperties orderProperties;
+
+    /**
+     * 测试 @ConfigurationProperties 注解的配置属性类
+     */
+    @GetMapping("/test01")
+    public OrderProperties test01() {
+        return orderProperties;
+    }
+
+    @Value(value = "${order.pay-timeout-seconds}") // @NacosValue(value = "${order.pay-timeout-seconds}")
+    private Integer payTimeoutSeconds;
+    @Value(value = "${order.create-frequency-seconds}") // @NacosValue(value = "${order.create-frequency-seconds}")
+    private Integer createFrequencySeconds;
+
+    /**
+     * 测试 @Value 注解的属性
+     */
+    @GetMapping("/test02")
+    public Map<String, Object> test02() {
+        return new JSONObject().fluentPut("payTimeoutSeconds", payTimeoutSeconds)
+                .fluentPut("createFrequencySeconds", createFrequencySeconds);
+    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-actuator/src/main/resources/application.yaml

@@ -0,0 +1,10 @@
+management:
+  endpoint:
+    # Health 端点配置项，对应 HealthProperties 配置类
+    health:
+      show-details: ALWAYS # 何时显示完整的健康信息。默认为 NEVER 都不展示。可选 WHEN_AUTHORIZED 当经过授权的用户；可选 ALWAYS 总是展示。
+  endpoints:
+    # Actuator HTTP 配置项，对应 WebEndpointProperties 配置类
+    web:
+      exposure:
+        include: '*' # 需要开放的端点。默认值只打开 health 和 info 两个端点。通过设置 * ，可以开放所有端点。

labx-05/labx-05-sca-nacos-config-demo-actuator/src/main/resources/bootstrap.yaml

@@ -0,0 +1,13 @@
+spring:
+  application:
+    name: demo-application
+
+  cloud:
+    nacos:
+      # Nacos Config 配置项，对应 NacosConfigProperties 配置属性类
+      config:
+        server-addr: 127.0.0.1:8848 # Nacos 服务器地址
+        namespace: # 使用的 Nacos 的命名空间，默认为 null
+        group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+        name: # 使用的 Nacos 配置集的 dataId，默认为 spring.application.name
+        file-extension: yaml # 使用的 Nacos 配置集的 dataId 的文件拓展名，同时也是 Nacos 配置集的配置格式，默认为 properties

labx-05/labx-05-sca-nacos-config-demo-jasypt/pom.xml

@@ -0,0 +1,81 @@
+<?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">
+    <parent>
+        <artifactId>labx-05</artifactId>
+        <groupId>cn.iocoder.springboot.labs</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>labx-05-sca-nacos-config-demo-jasypt</artifactId>
+
+    <properties>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <spring.boot.version>2.2.4.RELEASE</spring.boot.version>
+        <spring.cloud.version>Hoxton.SR1</spring.cloud.version>
+        <spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version>
+    </properties>
+
+    <!--
+        引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
+        在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
+     -->
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-starter-parent</artifactId>
+                <version>${spring.boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring.cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>com.alibaba.cloud</groupId>
+                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
+                <version>${spring.cloud.alibaba.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- 引入 Spring Cloud Alibaba Nacos Config 相关依赖，将 Nacos 作为配置中心，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
+        </dependency>
+
+        <!-- 实现对 Jasypt 实现自动化配置 -->
+        <dependency>
+            <groupId>com.github.ulisesbocchio</groupId>
+            <artifactId>jasypt-spring-boot-starter</artifactId>
+            <version>3.0.2</version>
+            <!--            <scope>test</scope>-->
+        </dependency>
+
+        <!-- 方便等会写单元测试 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>

labx-05/labx-05-sca-nacos-config-demo-jasypt/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/DemoApplication.java

@@ -0,0 +1,13 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DemoApplication.class);
+    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-jasypt/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/controller/DemoController.java

@@ -0,0 +1,22 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo.controller;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/demo")
+@RefreshScope
+public class DemoController {
+
+    @Value("${xxx-password:}")
+    private String xxxPassword;
+
+    @GetMapping("/test")
+    public String test() {
+        return xxxPassword;
+    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-jasypt/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/listener/JasyptEnvironmentChangeListener.java

@@ -0,0 +1,45 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo.listener;
+
+import org.apache.commons.lang3.StringUtils;
+import org.jasypt.encryption.StringEncryptor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
+import org.springframework.cloud.context.environment.EnvironmentManager;
+import org.springframework.context.ApplicationListener;
+import org.springframework.stereotype.Component;
+
+@Component
+public class JasyptEnvironmentChangeListener implements ApplicationListener<EnvironmentChangeEvent> {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    // Environment 管理器，可以实现配置项的获取和修改
+    @Autowired
+    private EnvironmentManager environmentManager;
+
+    // Jasypt 加密器，可以对配置项进行加密和加密
+    @Autowired
+    private StringEncryptor encryptor;
+
+    @Override
+    public void onApplicationEvent(EnvironmentChangeEvent event) {
+        for (String key : event.getKeys()) {
+            // 获得 value
+            Object valueObj = environmentManager.getProperty(key);
+            if (!(valueObj instanceof String)) {
+                continue;
+            }
+            String value = (String) valueObj;
+            // 判断 value 是否为加密。如果是，则进行解密
+            if (value.startsWith("ENC(") && value.endsWith(")")) {
+                value = encryptor.decrypt(StringUtils.substringBetween(value, "ENC(", ")"));
+                logger.info("[onApplicationEvent][key({}) 解密后为 {}]", key, value);
+                // 设置到 Environment 中
+                environmentManager.setProperty(key, value);
+            }
+        }
+    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-jasypt/src/main/resources/bootstrap.yaml

@@ -0,0 +1,13 @@
+spring:
+  application:
+    name: demo-application-jasypt
+
+  cloud:
+    nacos:
+      # Nacos Config 配置项，对应 NacosConfigProperties 配置属性类
+      config:
+        server-addr: 127.0.0.1:8848 # Nacos 服务器地址
+        namespace: # 使用的 Nacos 的命名空间，默认为 null
+        group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+        name: # 使用的 Nacos 配置集的 dataId，默认为 spring.application.name
+        file-extension: yaml # 使用的 Nacos 配置集的 dataId 的文件拓展名，同时也是 Nacos 配置集的配置格式，默认为 properties

labx-05/labx-05-sca-nacos-config-demo-jasypt/src/test/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/JasyptTest.java

@@ -0,0 +1,40 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo;
+
+import org.jasypt.encryption.StringEncryptor;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class JasyptTest {
+
+    @Autowired
+    private StringEncryptor encryptor;
+
+    @Test
+    public void encode() {
+        // 第一个加密
+        String password = "woshimima";
+        System.out.println(encryptor.encrypt(password));
+
+        // 第二个加密
+        password = "bushimima";
+        System.out.println(encryptor.encrypt(password));
+    }
+
+    @Value("${xxx-password:}")
+    private String xxxPassword;
+
+    @Test
+    public void print() {
+        System.out.println(xxxPassword);
+    }
+
+//    @Value("${jasypt.encryptor.password}")
+//    private String password;
+
+}

labx-05/labx-05-sca-nacos-config-demo-multi/pom.xml

@@ -0,0 +1,64 @@
+<?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">
+    <parent>
+        <artifactId>labx-05</artifactId>
+        <groupId>cn.iocoder.springboot.labs</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>labx-05-sca-nacos-config-demo-multi</artifactId>
+
+    <properties>
+        <spring.boot.version>2.2.4.RELEASE</spring.boot.version>
+        <spring.cloud.version>Hoxton.SR1</spring.cloud.version>
+        <spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version>
+    </properties>
+
+    <!--
+        引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
+        在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
+     -->
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-starter-parent</artifactId>
+                <version>${spring.boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring.cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>com.alibaba.cloud</groupId>
+                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
+                <version>${spring.cloud.alibaba.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- 引入 Spring Cloud Alibaba Nacos Config 相关依赖，将 Nacos 作为配置中心，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

labx-05/labx-05-sca-nacos-config-demo-multi/src/main/java/cn/iocoder/springcloudalibaba/labx5/nacosdemo/DemoApplication.java

@@ -0,0 +1,20 @@
+package cn.iocoder.springcloudalibaba.labx5.nacosdemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.core.env.Environment;
+
+@SpringBootApplication
+public class DemoApplication {
+
+    public static void main(String[] args) {
+        // 启动 Spring Boot 应用
+        ConfigurableApplicationContext context = SpringApplication.run(DemoApplication.class, args);
+
+        // 查看 Environment
+        Environment environment = context.getEnvironment();
+        System.out.println(environment);
+    }
+
+}

labx-05/labx-05-sca-nacos-config-demo-multi/src/main/resources/bootstrap.yaml

@@ -0,0 +1,32 @@
+spring:
+  application:
+    name: demo-application
+
+  cloud:
+    nacos:
+      # Nacos Config 配置项，对应 NacosConfigProperties 配置属性类
+      config:
+        server-addr: 127.0.0.1:8848 # Nacos 服务器地址
+        namespace: # 使用的 Nacos 的命名空间，默认为 null
+        group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+        name: ${spring.application.name} # 使用的 Nacos 配置集的 dataId，默认为 spring.application.name
+        file-extension: yaml # 使用的 Nacos 配置集的 dataId 的文件拓展名，同时也是 Nacos 配置集的配置格式，默认为 properties
+        # 拓展配置集数组，对应 Config 数组
+        extension-configs:
+          - data-id: extension-dataId-01.yaml
+            group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+            refresh: true # 是否自动刷新配置，默认为 false
+          - data-id: extension-dataId-02.yaml
+            group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+            refresh: true # 是否自动刷新配置，默认为 false
+        # 共享配置集数组，对应 Config 数组
+        shared-configs:
+          - data-id: shared-dataId-01.yaml
+            group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+            refresh: true # 是否自动刷新配置，默认为 false
+          - data-id: shared-dataId-02.yaml
+            group: DEFAULT_GROUP # 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
+            refresh: true # 是否自动刷新配置，默认为 false
+
+  profiles:
+    active: dev # 设置开启的 Profiles

labx-05/pom.xml

@@ -15,6 +15,9 @@
         <module>labx-05-sca-nacos-config-demo</module>
         <module>labx-05-sca-nacos-config-demo-profiles</module>
         <module>labx-05-sca-nacos-config-auto-refresh</module>
+        <module>labx-05-sca-nacos-config-demo-jasypt</module>
+        <module>labx-05-sca-nacos-config-demo-actuator</module>
+        <module>labx-05-sca-nacos-config-demo-multi</module>
     </modules>