- demo 项目，增加 RPC 接口

demo/demo-application/pom.xml

@@ -49,6 +49,17 @@
             <version>1.0-SNAPSHOT</version>
         </dependency>
 
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>demo-rpc-service-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>demo-rpc-service</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
         <!-- Web 相关 -->
         <dependency>
             <groupId>org.springframework.boot</groupId>

demo/demo-application/src/main/java/cn/iocoder/mall/demo/application/DemoApplication.java

@@ -2,13 +2,25 @@ package cn.iocoder.mall.demo.application;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.config.ConfigFileApplicationListener;
 import org.springframework.scheduling.annotation.EnableAsync;
 
 @SpringBootApplication(scanBasePackages = {"cn.iocoder.mall.demo"})
 @EnableAsync(proxyTargetClass = true)
+//@PropertySource("classpath*:/application-dubbo.yaml")
 public class DemoApplication {
 
+    /**
+     * 设置需要读取的配置文件的名字。
+     * 基于 {@link org.springframework.boot.context.config.ConfigFileApplicationListener#CONFIG_NAME_PROPERTY} 实现。
+     */
+    private static final String CONFIG_NAME_VALUE = "application,rpc,business";
+
     public static void main(String[] args) {
+        // 设置环境变量
+        System.setProperty(ConfigFileApplicationListener.CONFIG_NAME_PROPERTY, CONFIG_NAME_VALUE);
+
+        // 启动 Spring Boot 应用
         SpringApplication.run(DemoApplication.class, args);
     }
 

demo/demo-application/src/main/java/cn/iocoder/mall/demo/application/controller/DemoProductController.java

@@ -5,6 +5,8 @@ import cn.iocoder.mall.demo.application.convert.DemoProductConvert;
 import cn.iocoder.mall.demo.application.vo.DemoProductVO;
 import cn.iocoder.mall.demo.business.api.DemoProductService;
 import cn.iocoder.mall.demo.business.bo.product.DemoProductBO;
+import cn.iocoder.mall.demo.rpc.api.DemoProductRpcService;
+import org.apache.dubbo.config.annotation.Reference;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -18,10 +20,20 @@ public class DemoProductController {
     @Autowired
     private DemoProductService productService;
 
+    @Reference(validation = "true", version = "${dubbo.consumer.DemoProductRpcService.version}")
+    private DemoProductRpcService productRpcService;
+
     @GetMapping("/get")
     public CommonResult<DemoProductVO> get(@RequestParam("id") Integer id) {
         DemoProductBO product = productService.get(id);
         return CommonResult.success(DemoProductConvert.INSTANCE.convert(product));
     }
 
+    // TODO 芋艿，这里只是做一个 demo 。实际一般不会这么玩，更多是内嵌的，像 {@link #get(Integer id)} 的情况。
+    @GetMapping("/get2")
+    public CommonResult<DemoProductVO> get2(@RequestParam("id") Integer id) {
+        cn.iocoder.mall.demo.rpc.vo.DemoProductVO product = productRpcService.get(id);
+        return null;
+    }
+
 }

demo/demo-application/src/main/resources/application-local.yaml

+dubbo:
+  application:
+    name: demo-service
+  registry:
+    address: zookeeper://127.0.0.1:2181
+  protocol:
+    port: -1
+    name: dubbo
+  scan:
+    base-packages: cn.iocoder.mall.demo.rpc.service
+  consumer:
+    DemoProductRpcService:
+      version: 1.0.0

demo/demo-application/src/main/resources/application.yaml

+# spring
+spring:
+  application:
+    name: demo-application
+  profiles:
+    active: local
+
 # server
 server:
   port: 8080

demo/demo-job/src/main/java/cn/iocoder/mall/demo/job/handler/DemoJobHandler.java

+package cn.iocoder.mall.demo.job.handler;
+
+public class DemoJobHandler {
+}

demo/demo-job/src/main/java/cn/iocoder/mall/demo/job/package-info.java

+package cn.iocoder.mall.demo.job;

demo/demo-mq/src/main/java/cn/iocoder/mall/demo/mq/package-info.java

+package cn.iocoder.mall.demo.mq;

demo/demo-rpc-service-api/src/main/java/cn/iocoder/mall/demo/rpc/api/DemoProductRpcService.java

+package cn.iocoder.mall.demo.rpc.api;
+
+import cn.iocoder.mall.demo.rpc.vo.DemoProductVO;
+
+public interface DemoProductRpcService {
+
+    DemoProductVO get(Integer id);
+
+}

demo/demo-rpc-service-api/src/main/java/cn/iocoder/mall/demo/rpc/package-info.java

+package cn.iocoder.mall.demo.rpc;

demo/demo-rpc-service-api/src/main/java/cn/iocoder/mall/demo/rpc/vo/DemoProductVO.java

+package cn.iocoder.mall.demo.rpc.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+@ApiModel("Demo 商品 BO")
+@Data
+public class DemoProductVO {
+
+    @ApiModelProperty(value = "编号", required = true, example = "1")
+    private Integer id;
+
+    @ApiModelProperty(value = "华为 Mate30 Pro", required = true, example = "小王")
+    private String name;
+
+    @ApiModelProperty(value = "价格，单位：分", required = true, example = "10")
+    private Integer price;
+    @ApiModelProperty(value = "库存数量", required = true, example = "100")
+    private Integer quantity;
+
+}

demo/demo-rpc-service/pom.xml

@@ -11,5 +11,55 @@
 
     <artifactId>demo-rpc-service</artifactId>
 
+    <dependencies>
+        <!-- Mall 相关 -->
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>demo-rpc-service-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>demo-business-api</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.iocoder.mall</groupId>
+            <artifactId>demo-business</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <!-- RPC 相关 -->
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-spring-boot-starter</artifactId>
+        </dependency>
+
+        <!-- Registry 和 Config 相关 -->
+        <dependency>
+            <groupId>org.apache.curator</groupId>
+            <artifactId>curator-framework</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.curator</groupId>
+            <artifactId>curator-recipes</artifactId>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <!-- 提供给 mapstruct 使用 -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>

demo/demo-rpc-service/src/main/java/cn/iocoder/mall/demo/rpc/convert/DemoProductConvert.java

+package cn.iocoder.mall.demo.rpc.convert;
+
+import cn.iocoder.mall.demo.business.bo.product.DemoProductBO;
+import cn.iocoder.mall.demo.rpc.vo.DemoProductVO;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mappings;
+import org.mapstruct.factory.Mappers;
+
+@Mapper
+public interface DemoProductConvert {
+
+    DemoProductConvert INSTANCE = Mappers.getMapper(DemoProductConvert.class);
+
+    @Mappings({})
+    DemoProductVO convert(DemoProductBO object);
+
+}

demo/demo-rpc-service/src/main/java/cn/iocoder/mall/demo/rpc/package-info.java

+package cn.iocoder.mall.demo.rpc;

demo/demo-rpc-service/src/main/java/cn/iocoder/mall/demo/rpc/service/DemoProductRpcServiceImpl.java

+package cn.iocoder.mall.demo.rpc.service;
+
+import cn.iocoder.mall.demo.business.api.DemoProductService;
+import cn.iocoder.mall.demo.business.bo.product.DemoProductBO;
+import cn.iocoder.mall.demo.rpc.api.DemoProductRpcService;
+import cn.iocoder.mall.demo.rpc.convert.DemoProductConvert;
+import cn.iocoder.mall.demo.rpc.vo.DemoProductVO;
+import org.apache.dubbo.config.annotation.Service;
+import org.springframework.beans.factory.annotation.Autowired;
+
+@Service(validation = "true", version = "${dubbo.provider.DemoProductRpcService.version}")
+public class DemoProductRpcServiceImpl implements DemoProductRpcService {
+
+    @Autowired
+    private DemoProductService productService;
+
+    @Override
+    public DemoProductVO get(Integer id) {
+        DemoProductBO product = productService.get(id);
+        return DemoProductConvert.INSTANCE.convert(product);
+    }
+
+}

demo/demo-rpc-service/src/main/resources/rpc-local.yaml

+# dubbo
+dubbo:
+  application:
+    name: demo-service
+  registry:
+    address: zookeeper://127.0.0.1:2181
+  protocol:
+    port: -1
+    name: dubbo
+  scan:
+    base-packages: cn.iocoder.mall.demo.rpc.service
+#  consumer:
+#    ProductSpuService:
+#      version: 1.0.0
+  provider:
+#    filter: -exception
+    DemoProductRpcService:
+      version: 1.0.0