完成学习nacos请求转发

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>cn.mayiming</groupId>
+        <artifactId>javamemories-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>order-service</artifactId>
+    <packaging>jar</packaging>
+
+    <name>order-service</name>
+    <url>http://maven.apache.org</url>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+        </dependency>
+
+        <!-- 可选：Nacos 配置管理（从 Nacos 读取配置文件） -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+        </dependency>
+        <!-- 负载均衡（Feign 内置，但显式引入更清晰） -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
+        </dependency>
+    </dependencies>
+</project>

order-service/src/main/java/cn/mayiming/App.java

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+package cn.mayiming;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * Hello world!
+ *
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class App 
+{
+    public static void main( String[] args )
+    {
+        SpringApplication.run(App.class, args);
+    }
+}

order-service/src/main/java/cn/mayiming/Controller/OrderController.java

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+package cn.mayiming.Controller;
+
+
+import cn.mayiming.Service.OrderService;
+import cn.mayiming.entity.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class OrderController {
+
+    @Autowired
+    private OrderService orderService;
+
+    @PostMapping("/order")
+    public User getOrder(@RequestBody User user){
+        return orderService.SearchUserbyname(user);
+    }
+}

order-service/src/main/java/cn/mayiming/Service/OrderService.java

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+package cn.mayiming.Service;
+
+import cn.mayiming.entity.User;
+import cn.mayiming.feign.UserFeignClient;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class OrderService {
+    @Autowired
+    private UserFeignClient userFeignClient;
+
+    public User SearchUserbyname (User user) {
+        return userFeignClient.selectByUsername(user);
+    }
+
+}

order-service/src/main/java/cn/mayiming/entity/User.java

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+package cn.mayiming.entity;
+
+public class User {
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    String username;
+    String password;
+}

order-service/src/main/java/cn/mayiming/feign/UserFeignClient.java

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+package cn.mayiming.feign;
+
+import cn.mayiming.entity.User;
+import feign.Param;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.PostMapping;
+
+@FeignClient(name = "user-service")
+public interface UserFeignClient {
+    @PostMapping("/user")
+    User selectByUsername(User user);
+}

order-service/src/main/resources/application.yml

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+server:
+  port: 9092
+spring:
+  application:
+    name: order-service
+  cloud:
+    nacos:
+      # 服务注册发现配置
+      discovery:
+        server-addr: localhost:8848  # Nacos 服务地址（默认端口 8848）
+        namespace: public            # 命名空间（默认 public，自定义需先在 Nacos 控制台创建）
+        group: DEFAULT_GROUP         # 分组（默认 DEFAULT_GROUP）
+        service: order-service        # 注册到 Nacos 的服务名（建议和子项目 artifactId 一致）
+      # 配置管理配置（如果引入了 config 依赖才需要）
+      config:
+        server-addr: localhost:8848  # 和 discovery 一致
+        file-extension: yaml
+        namespace: public
+        group: DEFAULT_GROUP
+  config:
+    import: nacos:${spring.application.name}.${spring.cloud.nacos.config.file-extension}?server-addr=${spring.cloud.nacos.config.server-addr}

order-service/src/test/java/cn/mayiming/AppTest.java

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+package cn.mayiming;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}