eager-load

src/main/java/com/xcloud/galaxy/movieservice/config/WebConfig.java

 package com.xcloud.galaxy.movieservice.config;
 
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.client.RestTemplate;
@@ -14,6 +15,7 @@ public class WebConfig {
 
 
     @Bean
+    @LoadBalanced
     RestTemplate restTemplate() {
         return new RestTemplate();
     }

src/main/java/com/xcloud/galaxy/movieservice/controller/MovieController.java

@@ -34,11 +34,7 @@ public class MovieController {
 
     @GetMapping(value = "/index")
     public User index() {
-        List<ServiceInstance> instances = discoveryClient.getInstances("user-service");
-        List<String> urls = instances.stream().map(instance -> instance.getUri().toString()).collect(Collectors.toList());
-        int anInt = ThreadLocalRandom.current().nextInt(urls.size());
-        String url = urls.get(anInt);
-        User user = restTemplate.getForObject(url + "/users/1", User.class);
+        User user = restTemplate.getForObject("http://user-service/users/1", User.class);
         return user;
     }
 

src/main/resources/application.yml

@@ -7,3 +7,8 @@ spring:
         server-addr: 127.0.0.1:8848
   application:
     name: movie-service
+# 饥饿加载
+ribbon:
+  eager-load:
+    enabled: true
+    clients: user-service
\ No newline at end of file