feat: 初始化配置中心项目

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