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增加 spring cloud alibaba nacos 注册 - 监控端点
This commit is contained in:
YunaiV
@@ -123,7 +123,7 @@
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# Spring Cloud Alibaba 专栏
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* [《芋道 Spring Cloud Alibaba 注册中心 Nacos 入门》](http://www.iocoder.cn/Spring-Cloud-Alibaba/Nacos-Discovery/?github) 对应 [labx-01](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-01)
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* 《芋道 Spring Cloud Netflix 负载均衡 Ribbon 入门》
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* [《芋道 Spring Cloud Netflix 负载均衡 Ribbon 入门》](http://www.iocoder.cn/Spring-Cloud-Netflix/Ribbon/?github) 对应 [labx-02](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-02)
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* 《芋道 Spring Cloud 声明式调用 OpenFeign 入门》
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* 《芋道 Spring Cloud Alibaba 服务调用 Dubbo 入门》
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* 《芋道 Spring Cloud Alibaba 配置中心 Nacos 入门》
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@@ -145,7 +145,7 @@
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## 服务调用
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* 《芋道 Spring Cloud Alibaba 服务调用 Dubbo 入门》
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* 《芋道 Spring Cloud Netflix 负载均衡 Ribbon 入门》
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* [《芋道 Spring Cloud Netflix 负载均衡 Ribbon 入门》](http://www.iocoder.cn/Spring-Cloud-Netflix/Ribbon/?github) 对应 [labx-02](https://github.com/YunaiV/SpringBoot-Labs/tree/master/labx-02)
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* 《芋道 Spring Cloud 声明式调用 OpenFeign 入门》
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## 服务容错
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64
labx-01/labx-01-sca-nacos-discovery-demo02-consumer/pom.xml
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64
labx-01/labx-01-sca-nacos-discovery-demo02-consumer/pom.xml
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@@ -0,0 +1,64 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>labx-01</artifactId>
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<groupId>cn.iocoder.springboot.labs</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>labx-01-sca-nacos-discovery-demo02-consumer</artifactId>
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<properties>
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<spring.boot.version>2.2.4.RELEASE</spring.boot.version>
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<spring.cloud.version>Hoxton.SR1</spring.cloud.version>
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<spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version>
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</properties>
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<!--
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引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
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在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
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-->
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>${spring.boot.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring.cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>com.alibaba.cloud</groupId>
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<artifactId>spring-cloud-alibaba-dependencies</artifactId>
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<version>${spring.cloud.alibaba.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<!-- 引入 Spring Cloud Alibaba Nacos Discovery 相关依赖，将 Nacos 作为注册中心，并实现对其的自动配置 -->
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<dependency>
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<groupId>com.alibaba.cloud</groupId>
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<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
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</dependency>
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</dependencies>
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</project>
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@@ -0,0 +1,69 @@
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package cn.iocoder.springcloudalibaba.labx01.nacosdemo.consumer;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.client.ServiceInstance;
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import org.springframework.cloud.client.discovery.DiscoveryClient;
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import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.client.RestTemplate;
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import java.util.List;
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@SpringBootApplication
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// @EnableDiscoveryClient
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public class DemoConsumerApplication {
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public static void main(String[] args) {
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SpringApplication.run(DemoConsumerApplication.class, args);
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}
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@Configuration
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public class RestTemplateConfiguration {
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@Bean
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public RestTemplate restTemplate() {
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return new RestTemplate();
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}
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}
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@RestController
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static class TestController {
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@Autowired
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private DiscoveryClient discoveryClient;
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@Autowired
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private RestTemplate restTemplate;
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@Autowired
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private LoadBalancerClient loadBalancerClient;
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@GetMapping("/hello")
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public String hello(String name) {
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// 获得服务 `demo-provider` 的一个实例
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ServiceInstance instance;
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if (true) {
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// 获取服务 `demo-provider` 对应的实例列表
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List<ServiceInstance> instances = discoveryClient.getInstances("demo-provider");
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// 选择第一个
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instance = instances.size() > 0 ? instances.get(0) : null;
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} else {
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instance = loadBalancerClient.choose("demo-provider");
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}
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// 发起调用
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if (instance == null) {
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throw new IllegalStateException("获取不到实例");
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}
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String targetUrl = instance.getUri() + "/echo?name=" + name;
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String response = restTemplate.getForObject(targetUrl, String.class);
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// 返回结果
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return "consumer:" + response;
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}
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}
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}
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@@ -0,0 +1,7 @@
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spring:
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cloud:
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nacos:
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# Nacos 作为注册中心的配置项，对应 NacosDiscoveryProperties 配置类
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discovery:
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server-addr: 127.0.0.1:8848 # Nacos 服务器地址
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namespace: 14226a0d-799f-424d-8905-162f6a8bf409 # Nacos 命名空间 dev 的编号
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@@ -0,0 +1,7 @@
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spring:
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cloud:
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nacos:
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# Nacos 作为注册中心的配置项，对应 NacosDiscoveryProperties 配置类
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discovery:
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server-addr: 127.0.0.1:8848 # Nacos 服务器地址
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namespace: bc8c8c2d-bd85-42bb-ada3-1a8f940ceb20 # Nacos 命名空间 uat 的编号
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@@ -0,0 +1,6 @@
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spring:
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application:
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name: demo-consumer # Spring 应用名
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server:
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port: 28080 # 服务器端口。默认为 8080
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@@ -1,6 +1,6 @@
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spring:
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application:
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name: demo-provider # Spring 应用名
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spring:
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application:
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name: demo-provider # Spring 应用名
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server:
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port: 18080 # 服务器端口。默认为 8080
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server:
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port: 18080 # 服务器端口。默认为 8080
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70
labx-01/labx-01-sca-nacos-discovery-demo03-consumer/pom.xml
Normal file
70
labx-01/labx-01-sca-nacos-discovery-demo03-consumer/pom.xml
Normal file
@@ -0,0 +1,70 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>labx-01</artifactId>
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<groupId>cn.iocoder.springboot.labs</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>labx-01-sca-nacos-discovery-demo03-consumer</artifactId>
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<properties>
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<spring.boot.version>2.2.4.RELEASE</spring.boot.version>
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<spring.cloud.version>Hoxton.SR1</spring.cloud.version>
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<spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version>
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</properties>
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<!--
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引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。
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在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系
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-->
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>${spring.boot.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>${spring.cloud.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>com.alibaba.cloud</groupId>
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<artifactId>spring-cloud-alibaba-dependencies</artifactId>
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<version>${spring.cloud.alibaba.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<!-- 引入 Spring Cloud Alibaba Nacos Discovery 相关依赖，将 Nacos 作为注册中心，并实现对其的自动配置 -->
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<dependency>
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<groupId>com.alibaba.cloud</groupId>
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<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
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</dependency>
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<!-- 实现对 Actuator 的自动化配置 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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</dependencies>
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</project>
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@@ -0,0 +1,69 @@
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package cn.iocoder.springcloudalibaba.labx01.nacosdemo.consumer;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.client.ServiceInstance;
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import org.springframework.cloud.client.discovery.DiscoveryClient;
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import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.client.RestTemplate;
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import java.util.List;
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@SpringBootApplication
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// @EnableDiscoveryClient
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public class DemoConsumerApplication {
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public static void main(String[] args) {
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SpringApplication.run(DemoConsumerApplication.class, args);
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}
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@Configuration
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public class RestTemplateConfiguration {
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@Bean
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public RestTemplate restTemplate() {
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return new RestTemplate();
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}
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}
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@RestController
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static class TestController {
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@Autowired
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private DiscoveryClient discoveryClient;
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@Autowired
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private RestTemplate restTemplate;
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@Autowired
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private LoadBalancerClient loadBalancerClient;
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@GetMapping("/hello")
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public String hello(String name) {
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// 获得服务 `demo-provider` 的一个实例
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ServiceInstance instance;
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if (true) {
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// 获取服务 `demo-provider` 对应的实例列表
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List<ServiceInstance> instances = discoveryClient.getInstances("demo-provider");
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// 选择第一个
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instance = instances.size() > 0 ? instances.get(0) : null;
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} else {
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instance = loadBalancerClient.choose("demo-provider");
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}
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// 发起调用
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if (instance == null) {
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throw new IllegalStateException("获取不到实例");
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}
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String targetUrl = instance.getUri() + "/echo?name=" + name;
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String response = restTemplate.getForObject(targetUrl, String.class);
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// 返回结果
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return "consumer:" + response;
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}
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}
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}
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@@ -0,0 +1,23 @@
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spring:
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application:
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name: demo-consumer # Spring 应用名
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cloud:
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nacos:
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# Nacos 作为注册中心的配置项，对应 NacosDiscoveryProperties 配置类
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discovery:
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server-addr: 127.0.0.1:8848 # Nacos 服务器地址
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service: ${spring.application.name} # 注册到 Nacos 的服务名。默认值为 ${spring.application.name}。
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server:
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port: 28080 # 服务器端口。默认为 8080
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management:
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endpoints:
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web:
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exposure:
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include: '*' # 需要开放的端点。默认值只打开 health 和 info 两个端点。通过设置 * ，可以开放所有端点。
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endpoint:
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# Health 端点配置项，对应 HealthProperties 配置类
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health:
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enabled: true # 是否开启。默认为 true 开启。
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show-details: ALWAYS # 何时显示完整的健康信息。默认为 NEVER 都不展示。可选 WHEN_AUTHORIZED 当经过授权的用户；可选 ALWAYS 总是展示。
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@@ -16,6 +16,9 @@
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<module>labx-01-sca-nacos-discovery-demo01-consumer</module>
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<module>labx-01-sca-nacos-discovery-demo02-provider</module>
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<module>labx-01-sca-nacos-discovery-demo02-consumer</module>
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<module>labx-01-sca-nacos-discovery-demo03-consumer</module>
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</modules>
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