增加分别基于springboot-v2和spring-v3的spring-cloud样例 #48

sdk-examples/java/spring-cloud-v2/.gitignore

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+tmp/
+.vscode/
+

sdk-examples/java/spring-cloud-v2/README.md

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+
+# r-nacos spring-cloud-v2 说明
+
+本样例基于spring-boot:2.7.18和spring-cloud:2021.0.9，支持jdk1.8版本。
+
+
+
+## 使用方式
+
+1. 启动r-nacos
+2. 切换到spring-cloud-v2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 demo-service/target/demo-service-1.0-SNAPSHOT.jar`
+5. 运行api: `java -jar demo-api/target/demo-api-1.0-SNAPSHOT.jar`
+6. 访问api: `curl "http://127.0.0.1:20895/hi?name=r-nacos"`
+
+```sh
+curl "http://127.0.0.1:20895/hi?name=r-nacos"
+
+[springcloud-demo-service]: Hello, r-nacos
+```
+
+
+

sdk-examples/java/spring-cloud-v2/demo-api/.gitignore

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+target/
+

sdk-examples/java/spring-cloud-v2/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>springcloud-demo-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>demo-api</artifactId>
+    <name>demo-api</name>
+    <packaging>jar</packaging>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.rnacos.demo</groupId>
+            <artifactId>demo-common</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <!-- 添加 Nacos 支持 -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.junit.vintage</groupId>
+                    <artifactId>junit-vintage-engine</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring-boot.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

sdk-examples/java/spring-cloud-v2/demo-api/src/main/java/com/rnacos/demo/App.java

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+package com.rnacos.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ *
+ */
+@SpringBootApplication
+@EnableFeignClients // 启用 OpenFeign
+public class App {
+    public static void main(String[] args) {
+        SpringApplication.run(App.class, args);
+    }
+}

sdk-examples/java/spring-cloud-v2/demo-api/src/main/java/com/rnacos/demo/client/DemoServiceClient.java

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+package com.rnacos.demo.client;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+import com.rnacos.demo.Result;
+import com.rnacos.demo.foo.SayHelloRequest;
+import com.rnacos.demo.foo.SayHelloResponse;
+
+@FeignClient("springcloud-demo-service")
+public interface DemoServiceClient {
+
+    @RequestMapping(value = "/foo/sayHello", method = RequestMethod.POST)
+    Result<SayHelloResponse> sayHello(@RequestBody SayHelloRequest request);
+}

sdk-examples/java/spring-cloud-v2/demo-api/src/main/java/com/rnacos/demo/foo/api/FooController.java

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+package com.rnacos.demo.foo.api;
+
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.beans.factory.annotation.Value;
+
+import com.rnacos.demo.Result;
+import com.rnacos.demo.client.DemoServiceClient;
+import com.rnacos.demo.foo.SayHelloRequest;
+import com.rnacos.demo.foo.SayHelloResponse;
+
+import javax.annotation.Resource;
+
+@Component
+@RestController
+public class FooController {
+  @Value("${spring.application.name}")
+  private String serviceName;
+
+  @Resource
+  private DemoServiceClient demoServiceClient;
+
+  @GetMapping("/hi")
+  public String hello(@RequestParam("name") String name) {
+    if (name == null) {
+      name = "default";
+    }
+    SayHelloRequest request = new SayHelloRequest();
+    request.setName(name);
+    request.setFromAppName(serviceName);
+    Result<SayHelloResponse> sayHelloResult = demoServiceClient.sayHello(request);
+    if (!sayHelloResult.isSuccess()) {
+      return String.format("[ERROR]: %s", sayHelloResult.getMsg());
+    }
+    SayHelloResponse sayHelloResponse = sayHelloResult.getData();
+    return String.format("[%s]: %s", sayHelloResponse.getResponseFromAppName(),
+        sayHelloResponse.getResponseValue());
+  }
+}

sdk-examples/java/spring-cloud-v2/demo-api/src/main/resources/application.yml

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+server:
+    port: 20895
+spring:
+  application:
+    name: springcloud-demo-api
+  cloud:
+    nacos:
+      discovery:
+        username: nacos # nacos 登录用户名
+        password: nacos # 密码
+        server-addr: 127.0.0.1:8848 # nacos 服务端地址
+

sdk-examples/java/spring-cloud-v2/demo-common/.gitignore

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+target/
+

sdk-examples/java/spring-cloud-v2/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>springcloud-demo-parent</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>demo-common</artifactId>
+  <name>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>
+  <build>
+  </build>
+</project>

sdk-examples/java/spring-cloud-v2/demo-common/src/main/java/com/rnacos/demo/Result.java

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+package com.rnacos.demo;
+
+import java.io.Serializable;
+
+public class Result<T> implements Serializable {
+    private boolean success;
+    private T data;
+    private String msg;
+
+    public Result() {
+
+    }
+
+    public Result(T data) {
+        this.success = true;
+        this.data = data;
+    }
+
+    public static <T> Result<T> of(T data) {
+        return new Result<>(data);
+    }
+
+    public static <T> Result<T> error(String msg) {
+        Result<T> result = new Result<>();
+        result.success = false;
+        result.msg = msg;
+        return result;
+    }
+
+    public boolean isSuccess() {
+        return success;
+    }
+
+    public void setSuccess(boolean success) {
+        this.success = success;
+    }
+
+    public String getMsg() {
+        return msg;
+    }
+
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+
+    public T getData() {
+        return data;
+    }
+
+    public void setData(T data) {
+        this.data = data;
+    }
+
+}

sdk-examples/java/spring-cloud-v2/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/spring-cloud-v2/demo-common/src/main/java/com/rnacos/demo/foo/SayHelloRequest.java

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+package com.rnacos.demo.foo;
+
+import java.io.Serializable;
+
+public class SayHelloRequest implements Serializable {
+    private String fromAppName;
+    private String name;
+
+    public String getFromAppName() {
+        return fromAppName;
+    }
+
+    public void setFromAppName(String fromAppName) {
+        this.fromAppName = fromAppName;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

sdk-examples/java/spring-cloud-v2/demo-common/src/main/java/com/rnacos/demo/foo/SayHelloResponse.java

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+package com.rnacos.demo.foo;
+
+import java.io.Serializable;
+
+public class SayHelloResponse implements Serializable {
+    private String responseValue;
+    private String responseFromAppName;
+
+    public String getResponseValue() {
+        return responseValue;
+    }
+
+    public void setResponseValue(String responseValue) {
+        this.responseValue = responseValue;
+    }
+
+    public String getResponseFromAppName() {
+        return responseFromAppName;
+    }
+
+    public void setResponseFromAppName(String responseFromAppName) {
+        this.responseFromAppName = responseFromAppName;
+    }
+
+}

sdk-examples/java/spring-cloud-v2/demo-common/src/main/java/com/rnacos/demo/package-info.java

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+package com.rnacos.demo;

sdk-examples/java/spring-cloud-v2/demo-service/.gitignore

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+target/
+