SpringBoot -- 配置中心服务/webhook

2017-02-14 本文已影响3203人代码行间的无聊生活

配置中心服务器

配置中心服务器，以版本的管理方式对分布式系统提供外部配置支持；

SpringCloud中采用Spring Cloud Config 进行集成，而想要进行实施更新则需要采用spring cloud bus的方式, 如 Rabbit、Kafka 等。

版本管理采用 Git

这里采用Kafka,因为本地有开发测试环境

服务注册与发现参考

/bus/refresh 为消息总线带来的刷新方式，可以手动调用

destination参数：用于刷新指定的应用服务

e.g. /bus/refresh?destination=feignserver:8084

配置中心服务

创建配置中心服务module

在build.gradle引入：cloud:spring-cloud-config-server、spring-boot-autoconfigure; 因为我们还想可以自动更新所以引入 spring-cloud-starter-bus-kafka,引入spring-boot-starter-actuator、spring-cloud-config-monitor用于监听

build.gradle

apply plugin: 'org.springframework.boot'

dependencyManagement {
    imports {
        mavenBom "org.springframework.cloud:spring-cloud-dependencies:"+ springCloudVersion
        mavenBom "org.springframework.boot:spring-boot-dependencies:"+ springBootVersion
        mavenBom "org.springframework.boot:spring-boot-starter:"+ springBootVersion
    }
}
dependencies {
    compile('org.springframework.cloud:spring-cloud-config-server')
    compile('org.springframework.cloud:spring-cloud-starter-eureka')
    compile('org.springframework.boot:spring-boot-autoconfigure')
    compile('org.springframework.cloud:spring-cloud-starter-bus-kafka')
    compile('org.springframework.boot:spring-boot-starter-log4j2')
    compile('org.springframework.boot:spring-boot-starter-actuator')
    compile('org.springframework.cloud:spring-cloud-config-monitor')
    compile('org.apache.logging.log4j:log4j-1.2-api:'+ log4jAPIVersion)
    compile('org.xerial.snappy:snappy-java:' + snappyVersion)
    testCompile('org.springframework.boot:spring-boot-starter-test')

    testCompile group: 'junit', name: 'junit', version: '4.11'
}

configurations {
    all*.exclude module: 'spring-boot-starter-logging'
    all*.exclude module: 'logback-classic'
    all*.exclude module: 'log4j-over-slf4j'
    all*.exclude module: 'snappy-java'
}

sourceSets {
    main {
        resources.srcDirs = ['src/main/resources', 'src/main/java']
        resources.includes = ['**/*.xml', '**/*.yml']
    }
}

jar {
    baseName = 'configserver-bootcwenao'
}

因为引入了spring-cloud-starter-bus-kafka需要排除掉这个组件自带 logback，然后又需要兼容本身的log，所以还需要引入org.apache.logging.log4j:log4j-1.2-api

排除logging

configurations {
    all*.exclude module: 'spring-boot-starter-logging'
    all*.exclude module: 'logback-classic'
    all*.exclude module: 'log4j-over-slf4j'
    all*.exclude module: 'snappy-java'
}

在application.yml中配置Git

spring:
  cloud:
    config:
      server:
        git:
          uri: https://git.oschina.net/youraccount/project/
          search-paths: dir
          username: xxxxxxxx@xx.com
          password: xxxxxx
          default-label: master

在application.yml中配置Kafka

spring:
  cloud:
    stream:
      kafka:
        binder:
          brokers: localhost:9092
          zk-nodes: localhost:2181

通过 @EnableConfigServer 启用配置服务

/**
 * @author cwenao
 * @version $Id ConfigserverBootcwenaoApplication.java, v 0.1 2017-01-12 14:21 cwenao Exp $$
 */
@EnableDiscoveryClient
@SpringBootApplication
@EnableAutoConfiguration
@EnableConfigServer
public class ConfigserverBootcwenaoApplication {
    public static void main(String[] args) {
        new SpringApplicationBuilder(ConfigserverBootcwenaoApplication.class).web(true).run(args);
    }

}

创建Config-Client服务

在build.gradle引入：cloud:spring-cloud-starter-config，同时引入 spring-cloud-starter-bus-kafka

apply plugin: 'org.springframework.boot'
dependencyManagement {
    imports {
        mavenBom "org.springframework.cloud:spring-cloud-dependencies:"+ springCloudVersion
        mavenBom "org.springframework.boot:spring-boot-dependencies:"+ springBootVersion
        mavenBom "org.springframework.boot:spring-boot-starter:"+ springBootVersion
    }
}
dependencies {
    compile('org.springframework.cloud:spring-cloud-starter-config')
    compile('org.springframework.cloud:spring-cloud-starter-eureka')
    compile('org.springframework.cloud:spring-cloud-netflix-sidecar')
    compile('org.springframework.cloud:spring-cloud-starter-bus-kafka')
    compile('org.springframework.cloud:spring-cloud-stream')
    compile('org.xerial.snappy:snappy-java:' + snappyVersion)
    compile ('org.springframework.boot:spring-boot-starter-web')
    compile('org.springframework.boot:spring-boot-starter-log4j2')
    compile('org.apache.logging.log4j:log4j-1.2-api:'+ log4jAPIVersion)

    testCompile('org.springframework.boot:spring-boot-starter-test')
    testCompile group: 'junit', name: 'junit', version: '4.11'

}

configurations {
    all*.exclude module: 'spring-boot-starter-logging'
    all*.exclude module: 'logback-classic'
    all*.exclude module: 'log4j-over-slf4j'
    all*.exclude module: 'snappy-java'
}

sourceSets {
    main {
        resources.srcDirs = ['src/main/resources', 'src/main/java']
        resources.includes = ['**/*.xml', '**/*.yml']
    }
}
jar {
    baseName = 'apigateway-bootcwenao'
}

配置 bootstarp.yml 中 discovery开启访问配置服务中心

server:
  port: 10002
sidecar:
  port: 20001
#configServer
spring:
  application:
    name: apigateway
  profiles:
    active: dev
  cloud:
    config:
      uri: http://localhost:8888/
    discovery:
      enabled: true
    stream:
      kafka:
        binder:
          brokers: localhost:9092
          zk-nodes: localhost:2181

注解 @EnableDiscoveryClient

@SpringCloudApplication
@EnableDiscoveryClient
@EnableSidecar
public class ApiGatewayBootcwenaoApplication {

    public static void main(String[] args) {
        SpringApplication.run(ApiGatewayBootcwenaoApplication.class, args);
    }
}

Git 中文件名字 apigateway-dev.yml
内容为原先在本地的配置