SpringCloud 学习笔记-config配置中心(三)

以你之姓@ 2022-01-12 01:25 209阅读 0赞

1、pom 依赖

<?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>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.6.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.gray</groupId>
        <artifactId>server-config</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>server-config</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
            <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-config-server</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-bus-amqp</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-config-monitor</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>${spring-cloud.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

2、 yml配置

server:
      port: 8610
    spring:
      application:  #服务名称
        name: config
      profiles:
        active: dev
      cloud:
        config:
          server:
            git:
              uri: https://gitee.com/graycat/SpringCloudStudy.git
              searchPaths: SpringCloud-dev/baseConfig #配置仓库路径
              username: 59147***@qq.com
              password: lizh***14ma
          label: dev #配置仓库的分支
      #          设置本地GIT存储目录
      #          basedir: /Users/admin/code/myProjects/java/imooc/SpringCloud_Sell/config/basedir 本地GIT存储地址设置
      rabbitmq:
        host: 192.168.1.16
        port: 5672
        username: admin
        password: admin
        virtualHost: /
        publisherConfirms: true
    eureka:
      client:
        service-url:
          defaultZone: http://localhost:8761/eureka/
    management:
      endpoints:
        web:
          exposure:  # 设置开放访问
            include: refresh,health,info,bus-refresh

如果配置文件存在本地（在项目根目录/baseConfig文件夹）

server:
      port: 8610
    
    spring:
      application:
        name: config
      profiles:
        active: native
      cloud:
        config:
          server:
            native:
              search-locations: file:./baseConfig
      rabbitmq:
        host: 192.168.34.168
        port: 5672
        username: admin
        password: admin
        virtualHost: /
        publisherConfirms: true
    eureka:
      client:
        service-url:
          defaultZone: http://localhost:8761/eureka/,http://localhost:8762/eureka/,http://localhost:8763/eureka/
    management:
      endpoints:
        web:
          exposure:
            include: refresh,health,info,bus-refresh

3、启动类注解

@EnableConfigServer
    @SpringCloudApplication
    public class ServerConfigApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(ServerConfigApplication.class, args);
        }
    
    }

4、自定义了非Post刷新方式

@RestController
    public class RefreshController {
    
        @Autowired
        private RestTemplate restTemplate;
    
        @Value("${server.port}")
        private int port;
    
        @RequestMapping("/refresh")
        public String refresh(){
            String url = String.format("http://%s:%s", "localhost", port) + "/actuator/bus-refresh";
            URI uri = URI.create(url);
            //消息头
            HttpHeaders httpHeaders = new HttpHeaders();
            // 设置contentType
            httpHeaders.setContentType(MediaType.APPLICATION_JSON_UTF8);
            String httpBody = "{\"motto\":\"配置刷新\"}";
            HttpEntity<String> httpEntity = new HttpEntity<String>(httpBody, httpHeaders);
            ResponseEntity<String> response = restTemplate.exchange(uri, HttpMethod.POST, httpEntity, String.class);
            return response.getBody();
        }
    }

@Component
    public class RestTemplateConfig {
    
        @Bean
        @LoadBalanced
        public RestTemplate restTemplate() {
            return new RestTemplate();
        }
    }

一般情况都是 发送post请求 到配置中心，http://localhost:8101/actuator/bus-refresh

在CMD 中可以模拟post刷新：curl -X POST  http://localhost:8101/actuator/bus-refresh

5、client端 使用配置中心的配置  例：user服务器（正常客户端pom和启动类）

配置yml 由application.yml 改成 bootstrap.yml

spring:
      cloud:
        config:
          discovery:
            enabled: true  # 打开使用配置中心开关
            service-id: CONFIG  #配置中心 服务名称
          profile: dev  # 使用配置类型
          name: clientUser,datasource,rabbitmq   # 需要的配置，这里配置了多个：自己配置，数据库，mq
          label: master
    eureka:
      client:
        service-url:  # 这个不能放在配置中心，不然连配置中心都连不上
          defaultZone: http://localhost:8761/eureka/

配置中心，文件存放

![20190621154757632.png][]

localhost:8610/getway-dev.yml

浏览器上能直接查看配置

[20190621154757632.png]: /images/20220109/5e0c052a9a1c42bbb3bce487b284fa9e.png