Nacos通过LoadBalanced实现负载均衡远程调用

borrow-service/pom.xml

@@ -18,6 +18,15 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
     <dependencies>
+        <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-loadbalancer</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>

borrow-service/src/main/java/com/test/config/WebConfiguration.java

@@ -23,6 +23,7 @@ public class WebConfiguration {
     OAuth2ClientContext context;
 
     @Bean
+    @LoadBalanced
     public OAuth2RestTemplate restTemplate(){
         return new OAuth2RestTemplate(new ClientCredentialsResourceDetails(), context);
     }

borrow-service/src/main/java/com/test/service/impl/BorrowServiceImpl.java

@@ -37,9 +37,9 @@ public class BorrowServiceImpl implements BorrowService {
         List<Borrow> borrow = mapper.getBorrowsByUid(uid);
         //这里通过调用getForObject来请求其他服务，并将结果自动进行封装
         //获取User信息
-        User user = template.getForObject("http://localhost:8101/user/" + uid, User.class);
+        User user = template.getForObject("http://userservice/user/" + uid, User.class);
         //获取每一本书的详细信息
-        List<Book> bookList = borrow.stream().map(b -> template.getForObject("http://localhost:8201/book/" + b.getBid(), Book.class)).collect(Collectors.toList());
+        List<Book> bookList = borrow.stream().map(b -> template.getForObject("http://bookservice/book/" + b.getBid(), Book.class)).collect(Collectors.toList());
         return new UserBorrowDetail(user, bookList);
     }
 }