diff --git a/lab-45/lab-45-apollo-demo-auto-refresh/pom.xml b/lab-45/lab-45-apollo-demo-auto-refresh/pom.xml
new file mode 100644
index 00000000..150bad5e
--- /dev/null
+++ b/lab-45/lab-45-apollo-demo-auto-refresh/pom.xml
@@ -0,0 +1,30 @@
+<?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>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.2.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>lab-45-apollo-demo-auto-refresh</artifactId>
+
+    <dependencies>
+        <!-- 实现对 SpringMVC 的自动化配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!--  引入 Apollo 客户端，内置对 Apollo 的自动化配置 -->
+        <dependency>
+            <groupId>com.ctrip.framework.apollo</groupId>
+            <artifactId>apollo-client</artifactId>
+            <version>1.5.1</version>
+        </dependency>
+    </dependencies>
+
+</project>
diff --git a/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/Application.java b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/Application.java
new file mode 100644
index 00000000..b3bdae21
--- /dev/null
+++ b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/Application.java
@@ -0,0 +1,13 @@
+package cn.iocoder.springboot.lab45.apollodemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}
diff --git a/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/controller/DemoController.java b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/controller/DemoController.java
new file mode 100644
index 00000000..333314aa
--- /dev/null
+++ b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/controller/DemoController.java
@@ -0,0 +1,39 @@
+package cn.iocoder.springboot.lab45.apollodemo.controller;
+
+import cn.iocoder.springboot.lab45.apollodemo.properties.TestProperties;
+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.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/demo")
+public class DemoController {
+
+    @Value("${test.test}")
+    private String test;
+
+    @GetMapping("/test")
+    public String test() {
+        return test;
+    }
+
+    @Autowired
+    private TestProperties testProperties;
+
+    @GetMapping("/test_properties")
+    public TestProperties testProperties() {
+        return testProperties;
+    }
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @GetMapping("/logger")
+    public void logger() {
+        logger.debug("[logger][测试一下]");
+    }
+
+}
diff --git a/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/listener/LoggingSystemConfigListener.java b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/listener/LoggingSystemConfigListener.java
new file mode 100644
index 00000000..b88e338f
--- /dev/null
+++ b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/listener/LoggingSystemConfigListener.java
@@ -0,0 +1,37 @@
+package cn.iocoder.springboot.lab45.apollodemo.listener;
+
+import org.springframework.boot.logging.LoggingSystem;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+
+@Component
+public class LoggingSystemConfigListener {
+
+    /**
+     * 日志配置项的前缀
+     */
+    private static final String LOGGER_TAG = "logging.level.";
+
+    @Resource
+    private LoggingSystem loggingSystem;
+
+//    @NacosConfigListener(dataId = "${nacos.config.data-id}", type = ConfigType.YAML, timeout = 5000)
+//    public void onChange(String newLog) throws Exception {
+//        // 使用 DefaultYamlConfigParse 工具类，解析配置
+//        Properties properties = new DefaultYamlConfigParse().parse(newLog);
+//        // 遍历配置集的每个配置项，判断是否是 logging.level 配置项
+//        for (Object t : properties.keySet()) {
+//            String key = String.valueOf(t);
+//            // 如果是 logging.level 配置项，则设置其对应的日志级别
+//            if (key.startsWith(LOGGER_TAG)) {
+//                // 获得日志级别
+//                String strLevel = properties.getProperty(key, "info");
+//                LogLevel level = LogLevel.valueOf(strLevel.toUpperCase());
+//                // 设置日志级别到 LoggingSystem 中
+//                loggingSystem.setLogLevel(key.replace(LOGGER_TAG, ""), level);
+//            }
+//        }
+//    }
+
+}
diff --git a/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/properties/TestProperties.java b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/properties/TestProperties.java
new file mode 100644
index 00000000..6cb5be18
--- /dev/null
+++ b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/java/cn/iocoder/springboot/lab45/apollodemo/properties/TestProperties.java
@@ -0,0 +1,24 @@
+package cn.iocoder.springboot.lab45.apollodemo.properties;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+@Component
+@ConfigurationProperties(prefix = "test")
+public class TestProperties {
+
+    /**
+     * 测试属性
+     */
+    private String test;
+
+    public String getTest() {
+        return test;
+    }
+
+    public TestProperties setTest(String test) {
+        this.test = test;
+        return this;
+    }
+
+}
diff --git a/lab-45/lab-45-apollo-demo-auto-refresh/src/main/resources/application.yaml b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/resources/application.yaml
new file mode 100644
index 00000000..27c26fd5
--- /dev/null
+++ b/lab-45/lab-45-apollo-demo-auto-refresh/src/main/resources/application.yaml
@@ -0,0 +1,13 @@
+server:
+  port: 7070 # 避免和本地的 Apollo Portal 端口冲突
+
+app:
+  id: demo-application # 使用的 Apollo 的项目（应用）编号
+apollo:
+  meta: http://127.0.0.1:8080 # Apollo Meta Server 地址
+  bootstrap:
+    enabled: true # 是否开启 Apollo 配置预加载功能。默认为 false。
+    eagerLoad:
+      enable: true # 是否开启 Apollo 支持日志级别的加载时机。默认为 false。
+    namespaces: application # 使用的 Apollo 的命名空间，默认为 application。
+
diff --git a/lab-45/pom.xml b/lab-45/pom.xml
index 8d02ac8e..b730d4ff 100644
--- a/lab-45/pom.xml
+++ b/lab-45/pom.xml
@@ -14,6 +14,7 @@
     <modules>
         <module>lab-45-apollo-demo</module>
         <module>lab-45-apollo-demo-profiles</module>
+        <module>lab-45-apollo-demo-auto-refresh</module>
     </modules>