add dubbo_v3.x demo #48

sdk-examples/java/dubbo_v3.x/.gitignore

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+tmp/
+

sdk-examples/java/dubbo_v3.x/README.md

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+
+# r-nacos dubbo_v3.x 说明
+
+本样例基于dubbo v3.2.14版本，需要jdk 17以上版本。
+
+
+
+## 使用方式
+
+1. 启动r-nacos
+2. 切换到dubbo_v3.x样例目录
+3. 本地打包 `mvn package` (如果有问题可以用 `mvn install` )
+4. 运行service: `java -jar dubbo-demo-service/target/dubbo-demo-service-1.0-SNAPSHOT.jar`
+5. 运行api: `java -jar dubbo-demo-api/target/dubbo-demo-api-1.0-SNAPSHOT.jar`
+6. 访问api: `curl "http://127.0.0.1:20785/hi?name=r-nacos"`
+
+```sh
+curl "http://127.0.0.1:20785/hi?name=r-nacos"
+[dubbo-demo-service] : Hello, r-nacos
+```
+
+
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-api/.gitignore

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+target/
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-api/pom.xml

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+<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>
+
+ <parent>
+ <groupId>com.rnacos.demo</groupId>
+ <artifactId>dubbo-demo-parent</artifactId>
+ <version>1.0-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>dubbo-demo-api</artifactId>
+ <name>dubbo-demo-api</name>
+ <packaging>jar</packaging>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>com.rnacos.demo</groupId>
+ <artifactId>dubbo-demo-common</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>com.alibaba.nacos</groupId>
+ <artifactId>nacos-client</artifactId>
+ </dependency>
+ <!--
+ -->
+
+ <dependency>
+ <groupId>org.apache.dubbo</groupId>
+ <artifactId>dubbo-spring-boot-starter</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-web</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-log4j2</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.dubbo</groupId>
+ <artifactId>dubbo-nacos-spring-boot-starter</artifactId>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-maven-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+</project>
+
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-api/src/main/java/com/rnacos/demo/App.java

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+package com.rnacos.demo;
+
+import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+
+/**
+ *
+ */
+@SpringBootApplication
+@EnableDubbo
+public class App 
+{
+ public static void main(String[] args) {
+ SpringApplication.run(App.class,args);
+ }
+}

sdk-examples/java/dubbo_v3.x/dubbo-demo-api/src/main/java/com/rnacos/demo/foo/api/FooController.java

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+package com.rnacos.demo.foo.api; 
+
+import com.rnacos.demo.foo.DemoService;
+
+import org.apache.dubbo.config.annotation.DubboReference;
+import org.springframework.stereotype.Controller;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@Component
+@RestController
+public class FooController {
+
+ @DubboReference
+ private DemoService demoService;
+
+ @GetMapping("/hi") 
+ public String hello(@RequestParam("name")String name){
+ if(name==null){
+ name = "default";
+ }
+ return demoService.sayHello(name);
+ }
+}
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-api/src/main/resources/application.yml

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+server:
+ port: 20785
+spring:
+ application:
+ name: dubbo-demo-api
+
+dubbo:
+ application:
+ logger: slf4j
+ name: ${spring.application.name}
+ qos-enable: false
+ check-serializable: false
+ registry:
+ address: nacos://${nacos.address:127.0.0.1}:8848?username=nacos&password=nacos
+ protocol:
+ port: 20885
+ name: dubbo
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-common/.gitignore

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+target/
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-common/pom.xml

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+<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>
+
+ <parent>
+ <groupId>com.rnacos.demo</groupId>
+ <artifactId>dubbo-demo-parent</artifactId>
+ <version>1.0-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>dubbo-demo-common</artifactId>
+ <name>dubbo-demo-common</name>
+ <packaging>jar</packaging>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>3.8.1</version>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+</project>

sdk-examples/java/dubbo_v3.x/dubbo-demo-common/src/main/java/com/rnacos/demo/App.java

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+package com.rnacos.demo;
+
+/**
+ * Hello world!
+ *
+ */
+public class App 
+{
+ public static void main( String[] args )
+ {
+ System.out.println( "Hello World!" );
+ }
+}

sdk-examples/java/dubbo_v3.x/dubbo-demo-common/src/main/java/com/rnacos/demo/foo/DemoService.java

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+package com.rnacos.demo.foo;
+
+public interface DemoService {
+ String sayHello(String name);
+}

sdk-examples/java/dubbo_v3.x/dubbo-demo-service/.gitignore

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+target/
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-service/pom.xml

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+<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>
+
+ <parent>
+ <groupId>com.rnacos.demo</groupId>
+ <artifactId>dubbo-demo-parent</artifactId>
+ <version>1.0-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>dubbo-demo-service</artifactId>
+ <name>dubbo-demo-service</name>
+ <packaging>jar</packaging>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>com.rnacos.demo</groupId>
+ <artifactId>dubbo-demo-common</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>com.alibaba.nacos</groupId>
+ <artifactId>nacos-client</artifactId>
+ </dependency>
+ <!--
+ -->
+
+ <dependency>
+ <groupId>org.apache.dubbo</groupId>
+ <artifactId>dubbo-spring-boot-starter</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-web</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-log4j2</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.dubbo</groupId>
+ <artifactId>dubbo-nacos-spring-boot-starter</artifactId>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-maven-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+</project>
+

sdk-examples/java/dubbo_v3.x/dubbo-demo-service/src/main/java/com/rnacos/demo/App.java

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+package com.rnacos.demo;
+
+import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+
+/**
+ *
+ */
+@SpringBootApplication
+@EnableDubbo
+public class App 
+{
+ public static void main(String[] args) {
+ SpringApplication.run(App.class,args);
+ }
+}

sdk-examples/java/dubbo_v3.x/dubbo-demo-service/src/main/java/com/rnacos/demo/foo/service/impl/DemoServiceImpl.java

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+package com.rnacos.demo.foo.service.impl;
+
+import com.rnacos.demo.foo.DemoService;
+import org.apache.dubbo.config.annotation.DubboService;
+import org.springframework.beans.factory.annotation.Value;
+
+
+@DubboService
+public class DemoServiceImpl implements DemoService {
+ @Value("${spring.application.name}")
+ private String serviceName;
+
+ public String sayHello(String name) {
+ //return String.format("Hello, %s",name);
+ return String.format("[%s] : Hello, %s",serviceName,name);
+ }
+}

sdk-examples/java/dubbo_v3.x/dubbo-demo-service/src/main/resources/application.yml

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+server:
+ port: 20784
+spring:
+ application:
+ name: dubbo-demo-service
+
+dubbo:
+ application:
+ logger: slf4j
+ name: ${spring.application.name}
+ qos-enable: false
+ check-serializable: false
+ registry:
+ address: nacos://${nacos.address:127.0.0.1}:8848?username=nacos&password=nacos
+ protocol:
+ port: 20884
+ name: dubbo