增加 Spring Cloud Zookeeper 配置中心入门

labx-26/labx-26-sc-zookeeper-config-auto-refresh/pom.xml

@@ -0,0 +1,56 @@
+<?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-26</artifactId>
+        <groupId>cn.iocoder.springboot.labs</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>labx-26-sc-zookeeper-config-auto-refresh</artifactId>
+
+    <properties>
+        <spring.boot.version>2.2.4.RELEASE</spring.boot.version>
+        <spring.cloud.version>Hoxton.SR1</spring.cloud.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>
+        </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 Zookeeper Config 相关依赖，将 Zookeeper 作为配置中心，并实现对其的自动配置 -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-zookeeper-config</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

labx-26/labx-26-sc-zookeeper-config-auto-refresh/src/main/java/cn/iocoder/springcloud/labx26/zookeeperdemo/DemoApplication.java

@@ -0,0 +1,13 @@
+package cn.iocoder.springcloud.labx26.zookeeperdemo;
+
+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-26/labx-26-sc-zookeeper-config-auto-refresh/src/main/java/cn/iocoder/springcloud/labx26/zookeeperdemo/config/OrderProperties.java

@@ -0,0 +1,52 @@
+package cn.iocoder.springcloud.labx26.zookeeperdemo.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+@Component
+@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-26/labx-26-sc-zookeeper-config-auto-refresh/src/main/java/cn/iocoder/springcloud/labx26/zookeeperdemo/controller/DemoController.java

@@ -0,0 +1,44 @@
+package cn.iocoder.springcloud.labx26.zookeeperdemo.controller;
+
+import cn.iocoder.springcloud.labx26.zookeeperdemo.config.OrderProperties;
+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.HashMap;
+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() {
+        Map<String, Object> results = new HashMap<String, Object>();
+        results.put("payTimeoutSeconds", payTimeoutSeconds);
+        results.put("createFrequencySeconds", createFrequencySeconds);
+        return results;
+    }
+
+}

labx-26/labx-26-sc-zookeeper-config-auto-refresh/src/main/resources/bootstrap.yaml

@@ -0,0 +1,14 @@
+spring:
+  application:
+    name: demo-application
+
+  cloud:
+    zookeeper:
+      connect-string: 127.0.0.1:2181
+      # Zookeeper 作为配置中心的配置项，对应 ZookeeperConfigProperties 配置类
+      config:
+        root: /config # Zookeeper 数据存储的根节点，默认为 /config
+        default-context: application # 读取 Zookeeper 配置的默认目录，默认为 application
+        profile-separator: ',' # 多环境目录分隔符，默认为 ,
+        watcher:
+          enabled: true # 是否开启 Watch 功能，监听 Zookeeper 数据的变化。默认为 true，实现实时监听配置的更新

labx-26/labx-26-sc-zookeeper-config-demo/src/main/resources/bootstrap.yaml

@@ -9,6 +9,6 @@ spring:
       config:
         root: /config # Zookeeper 数据存储的根节点，默认为 /config
         default-context: application # 读取 Zookeeper 配置的默认目录，默认为 application
-        profile-separator: \, # 多环境目录分隔符，默认为 ,
+        profile-separator: ',' # 多环境目录分隔符，默认为 ,
         watcher:
           enabled: true # 是否开启 Watch 功能，监听 Zookeeper 数据的变化。默认为 true，实现实时监听配置的更新

labx-26/pom.xml

@@ -13,6 +13,7 @@
 
     <modules>
         <module>labx-26-sc-zookeeper-config-demo</module>
+        <module>labx-26-sc-zookeeper-config-auto-refresh</module>
     </modules>
 
 </project>