代码提交

spring-cloud-demo/order-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.mangmang</groupId>
+        <artifactId>spring-cloud-demo</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <name>order-service</name>
+    <artifactId>order-service</artifactId>
+    <packaging>jar</packaging>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-config</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-bootstrap</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>

spring-cloud-demo/order-service/src/main/java/com/mangmang/OrderServiceApplication.java

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+package com.mangmang;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+
+@SpringBootApplication
+@EnableEurekaClient
+@EnableFeignClients
+public class OrderServiceApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(OrderServiceApplication.class, args);
+    }
+}

spring-cloud-demo/order-service/src/main/java/com/mangmang/orderservice/client/UserClient.java

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+package com.mangmang.orderservice.client;
+
+import com.mangmang.orderservice.client.model.User;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+@FeignClient(name = "user-service")
+public interface UserClient {
+
+    @GetMapping("/users/{id}")
+    User getUserById(@PathVariable("id") Long id);
+}

spring-cloud-demo/order-service/src/main/java/com/mangmang/orderservice/client/model/Order.java

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+package com.mangmang.orderservice.client.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+@AllArgsConstructor
+@Data
+public class Order {
+    private Long id;
+    private Long userId;
+    private String productName;
+    private Double price;
+}

spring-cloud-demo/order-service/src/main/java/com/mangmang/orderservice/client/model/User.java

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+package com.mangmang.orderservice.client.model;
+
+import lombok.Data;
+
+@Data
+public class User {
+    private Long id;
+    private String name;
+    private String email;
+}

spring-cloud-demo/order-service/src/main/java/com/mangmang/orderservice/controller/OrderController.java

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+package com.mangmang.orderservice.controller;
+
+import com.mangmang.orderservice.client.UserClient;
+import com.mangmang.orderservice.client.model.Order;
+import com.mangmang.orderservice.client.model.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@RestController
+@RequestMapping("/orders")
+public class OrderController {
+
+    @Value("${server.port}")
+    private String port;
+
+    @Autowired
+    private UserClient userClient;
+
+    private List<Order> orders = new ArrayList<>();
+
+    public OrderController() {
+        orders.add(new Order(1L, 1L, "iPhone 13", 5999.99));
+        orders.add(new Order(2L, 1L, "MacBook Pro", 12999.99));
+        orders.add(new Order(3L, 2L, "iPad Pro", 4999.99));
+    }
+
+    @GetMapping
+    public List<Order> getAllOrders() {
+        return orders;
+    }
+
+    @GetMapping("/{id}")
+    public Order getOrderById(@PathVariable Long id) {
+        return orders.stream()
+                .filter(order -> order.getId().equals(id))
+                .findFirst()
+                .orElseThrow(() -> new RuntimeException("Order not found"));
+    }
+
+    @GetMapping("/user/{userId}")
+    public List<Order> getOrdersByUserId(@PathVariable Long userId) {
+        // 验证用户是否存在
+        User user = userClient.getUserById(userId);
+        if (user == null) {
+            throw new RuntimeException("User not found");
+        }
+
+        return orders.stream()
+                .filter(order -> order.getUserId().equals(userId))
+                .collect(Collectors.toList());
+    }
+
+    @GetMapping("/port")
+    public String getPort() {
+        return "Order service running on port: " + port;
+    }
+}

spring-cloud-demo/order-service/src/main/resources/application.yml

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+# server配置块，用于定义服务器相关的配置
+server:
+  # 服务器端口号，指定应用程序监听的端口
+  port: 8082
+
+# eureka配置块，用于定义Eureka客户端相关的配置
+eureka:
+  client:
+    serviceUrl:
+      # Eureka服务器的默认区域URL，指定Eureka服务器的地址
+      defaultZone: http://localhost:8761/eureka/
+
+# management配置块，用于定义管理端点相关的配置
+management:
+  endpoints:
+    web:
+      exposure:
+        # 暴露所有管理端点，允许通过Web访问所有管理端点
+        include: "*"

spring-cloud-demo/order-service/src/main/resources/bootstrap.yml

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+# Spring 应用程序配置
+spring:
+  # 应用程序相关配置
+  application:
+    # 应用程序名称，用于标识当前服务
+    name: order-service
+  # Spring Cloud 相关配置
+  cloud:
+    # Spring Cloud Config 配置
+    config:
+      # 配置服务发现相关设置
+      discovery:
+        # 启用配置服务发现，允许通过服务发现机制查找配置服务器
+        enabled: true
+        # 配置服务器的服务ID，用于在服务注册中心查找配置服务器
+        service-id: config-server
+      # 配置客户端在启动时快速失败，如果无法连接到配置服务器，则应用程序将无法启动
+      fail-fast: true