feat: 初始化配置中心项目

kenaito-conf-springboot2-client-demo/README.md

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+# kenaito-conf-springboot2-client-demo
+
+配置中心客户端示例项目。
+
+## 配置说明
+
+在 `application.properties` 中配置：
+
+```properties
+# 配置中心地址
+kenaito.config.server=http://localhost:8080
+kenaito.config.appName=demo
+kenaito.config.env=dev
+kenaito.config.version=latest
+kenaito.config.profile=dev
+```
+
+## 运行步骤
+
+1. 先安装 kenaito-conf-springboot2-client 到本地 Maven 仓库：
+```bash
+cd E:\SelfDev\Gitea2026\kenaito-conf\kenaito-conf-springboot2-client
+mvn clean install -DskipTests
+```
+
+2. 运行示例项目：
+```bash
+cd E:\SelfDev\Gitea2026\kenaito-springboot-demo
+mvn spring-boot:run
+```
+
+3. 访问测试：
+```bash
+curl http://localhost:8081/
+```
+
+## 配置优先级
+
+远程配置 > 本地配置
+
+在配置中心添加应用 `demo` 的配置后，远程配置会覆盖本地同名配置。

kenaito-conf-springboot2-client-demo/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>
+
+    <groupId>cn.odboy</groupId>
+    <artifactId>kenaito-conf-springboot2-client-demo</artifactId>
+    <version>1.0.0</version>
+    <packaging>jar</packaging>
+
+    <name>kenaito-conf-springboot2-client-demo</name>
+    <description>Demo project for kenaito-conf config center</description>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.7.18</version>
+        <relativePath/>
+    </parent>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- kenaito-conf springboot client -->
+        <dependency>
+            <groupId>cn.odboy</groupId>
+            <artifactId>kenaito-conf-springboot2-client</artifactId>
+            <version>1.0.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>

kenaito-conf-springboot2-client-demo/src/main/java/cn/odboy/demo/ConfigController.java

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+package cn.odboy.demo;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+public class ConfigController {
+
+    @Value("${app.name:unknown}")
+    private String appName;
+
+    @Value("${app.version:unknown}")
+    private String appVersion;
+
+    @Value("${db.url:unknown}")
+    private String dbUrl;
+
+    @Value("${db.username:unknown}")
+    private String dbUsername;
+
+    @Value("${custom.config1:unknown}")
+    private String customConfig1;
+
+    @GetMapping("/")
+    public Map<String, Object> index() {
+        Map<String, Object> result = new HashMap<>();
+        result.put("appName", appName);
+        result.put("appVersion", appVersion);
+        result.put("dbUrl", dbUrl);
+        result.put("dbUsername", dbUsername);
+        result.put("customConfig1", customConfig1);
+        return result;
+    }
+
+    @GetMapping("/health")
+    public String health() {
+        return "OK";
+    }
+}

kenaito-conf-springboot2-client-demo/src/main/java/cn/odboy/demo/DemoApplication.java

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+package cn.odboy.demo;
+
+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, args);
+    }
+}

kenaito-conf-springboot2-client-demo/src/main/resources/META-INF/spring.factories

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+org.springframework.boot.env.EnvironmentPostProcessor=\
+cn.odboy.confcenter.springboot.KenaitoEnvironmentInitializer

kenaito-conf-springboot2-client-demo/src/main/resources/application.properties

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+# Server
+server.port=8081
+
+# Application
+app.name=kenaito-conf-springboot2-client-demo
+app.version=1.0.0
+
+# Kenaito Config Center
+kenaito.config.baseUrl=http://localhost:8080
+kenaito.config.appName=demo
+kenaito.config.profile=dev
+kenaito.config.version=latest
+kenaito.config.token=
+kenaito.config.sync-interval-seconds=30
+
+# Local configs (will be overridden by remote if exists)
+db.url=jdbc:mysql://localhost:3306/local_db
+db.username=local_user
+custom.config1=local_value