SpringCloud微服务 Apollo分布式配置中心客户端获取配置(一)-蒲公英云

SpringCloud微服务 Apollo分布式配置中心客户端获取配置(一)

灰太狼 2022-03-01 04:18 559阅读 0赞

前言

本小结之前我们学习了如何定制开发与部署属于我们自己的分布式配置中心，以后的章节我们将陆续学习一下如何客户端获取配置中心中的配置信息。

案例

在apollo-portal的apollo-env-properties中做如下设置：
```
local.meta=http://localhost:8080
dev.meta=http://localhost:8080
fat.meta=http://localhost:8080
uat.meta=http://localhost:8080
lpt.meta=${lpt_meta}
pro.meta=${pro_meta}
```
如上配置说明在本地开启的配置中心只支持dev、fat、uat。至于如何自定义env，请自行参考网上学习文档，本人不推荐使用DEV/FAT/UAT/PRO之外的环境定义。
本地部署好Apollo配置中心，如果好不知道怎么本地部署的请参考前文。这里不做赘述。

配置好DEV配置属性

timeout = 1500
server.port = 8087
spring.application.name = microservice-deal-cloud
eureka.client.serviceUrl.defaultZone = http://localhost:8080/eureka/
eureka.instance.hostname = Swift
eureka.instance.prefer-ip-address = true
eureka.instance.metadata-map.zone = Asia
eureka.instance.metadata-map.customizedMetadata = eurekaCustomizedMetadata
eureka.instance.metadata-map.instanceId = ${spring.application.name}:${server.port}
feign.hystrix.enabled = true

新建项目microservice-deal-apollo-client

项目结构

Core Code

application.properties

#与Apollo配置中心的APPID一致
app.id=Dustyone163
#设置Client的meta即配置中心地址
apollo.meta=http://127.0.0.1:8080

MicroserviceDealApolloClientApplication

@SpringBootApplication
@EnableDiscoveryClient
@EnableApolloConfig
public class MicroserviceDealApolloClientApplication {
    public static void main(String[] args) throws Exception {
        SpringApplication.run(MicroserviceDealApolloClientApplication.class, args);
    }
}

启动类上添加:@EnableApolloConfig

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>
    <artifactId>microservice-deal-apollo-client</artifactId>
    <packaging>jar</packaging>
    <name>microservice-deal-apollo-client</name>
    <description>Demo project for Spring Boot</description>
    <parent>
        <groupId>com.example</groupId>
        <artifactId>microservice-deal-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>com.ctrip.framework.apollo</groupId>
            <artifactId>apollo-client</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>com.ctrip.framework.apollo</groupId>
            <artifactId>apollo-core</artifactId>
            <version>1.3.0</version>
        </dependency>
    </dependencies>
</project>

DealController

@RestController
public class DealController {
    @Value("${server.port}")
    private String port; // 注入普通字符串
    @GetMapping("/deal/{id}")
    public Deal findById(@PathVariable Integer id) throws InterruptedException {
        //Thread.sleep(3000);
        Deal deal = new  Deal(id, "Dustyone", "Heyt", 22, 18,port);
        return deal;
    }
    @GetMapping("/dealMock/{id}")
    public Deal findByIdMock(@PathVariable Integer id) {
        Deal deal = new  Deal(id, "DustyoneMock", "Mock", 92, 18,port);
        return deal;
    }
    @GetMapping("/deal/withoutParams")
    public Deal findByIdWithoutParams() {
        Deal deal = new  Deal(0, "DustyoneMock", "MockWithouParams", 92, 18,port);
        return deal;
    }
    /*@GetMapping("/{id}")
    public Deal findById(@PathVariable Integer id) {
        Deal deal = new  Deal(id, "Dustyone", "Heyt", 22, 18,port);
        return deal;
    }*/
}