spring cloud config 统一配置管理

Spring Cloud为开发人员提供了在分布式系统中快速构建一些常见模式的工具（例如配置管理、服务发现、断路器、智能路由、微代理、控制总线、一次性令牌、全局锁、领导选举、分布式会话）等等20多个项目。同时它采用了springboot进行快速搭建和开发，非常简洁易用。今天主要记录springcloud eureka调用配置文件管理的使用。

项目结构

项目	介绍
springcloud-registry	Eureka 注册中心
config-server	配置管理服务
config-client	调用配置的为服务

中间调用情况：

Euraka server 注册中心

pom文件：

<?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><groupId>com.wcy.register</groupId><artifactId>springcloud-registry</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>springcloud-registry</name><description>Demo project for Spring Boot</description><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.10.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version><spring-cloud.version>Edgware.RELEASE</spring-cloud.version></properties><dependencies><!--start jdk9需要引入的jar包，jdk8不需要--><dependency><groupId>javax.xml.bind</groupId><artifactId>jaxb-api</artifactId><version>2.3.0</version></dependency><dependency><groupId>com.sun.xml.bind</groupId><artifactId>jaxb-impl</artifactId><version>2.3.0</version></dependency><dependency><groupId>org.glassfish.jaxb</groupId><artifactId>jaxb-runtime</artifactId><version>2.3.0</version></dependency><dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1.1</version></dependency><!--end jdk9需要引入的jar包，jdk8不需要--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka-server</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></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>

简单的配置文件：

spring.application.name=eboss-eureka-server
server.port=3000
eureka.instance.hostname=localhost
eureka.client.registerWithEureka=false
eureka.client.fetchRegistry=false
eureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/eureka.server.evictionIntervalTimerInMs=5000
eureka.server.enable-self-preservation=false
eureka.server.eviction-interval-timer-in-ms=2000#启用shutdown
endpoints.shutdown.enabled=true
#禁用密码验证
endpoints.shutdown.sensitive=false

config-server 配置中心

pom文件

<?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>config-server</artifactId><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.10.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version><spring-cloud.version>Finchley.M8</spring-cloud.version></properties><dependencies><!--start jdk9需要引入的jar包，jdk8不需要--><dependency><groupId>javax.xml.bind</groupId><artifactId>jaxb-api</artifactId><version>2.3.0</version></dependency><dependency><groupId>com.sun.xml.bind</groupId><artifactId>jaxb-impl</artifactId><version>2.3.0</version></dependency><dependency><groupId>org.glassfish.jaxb</groupId><artifactId>jaxb-runtime</artifactId><version>2.3.0</version></dependency><dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1.1</version></dependency><!--end jdk9需要引入的jar包，jdk8不需要--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-config-server</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>Camden.SR3</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><repositories><repository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/milestone</url><snapshots><enabled>false</enabled></snapshots></repository></repositories>
</project>

启动类代码：

package com.wcy.config.server;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;/**** @Description: <br>* @Project: eboos <br>* @CreateDate: Created in 2018/4/29 17:01 <br>* @Author: <a href="836327318@qq.com">wcy</a>*/
@SpringBootApplication
@EnableConfigServer
@EnableEurekaClient
public class SpringBootConfigServerApplication {public static void main(String[] args) {SpringApplication.run(SpringBootConfigServerApplication.class, args);}
}

配置文件 bootstrap.properties

spring.application.name=spring-config-server
spring.profiles.active=native
server.port=3001
eureka.client.serviceUrl.defaultZone=http://localhost:3000/eureka/
spring.cloud.config.server.native.searchLocations=file:///D:/config

本地文件的目录

application-test.properties 内容

server.port=3002
spring.config.demo=hello,springcloud-config

启动服务后url访问的路径：http://192.168.0.103:3001/application/test

如果能把配置文件打开就成功了。

config-client 微服务配置调用项目

pom配置文件

<?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>config-client</artifactId><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.10.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version><spring-cloud.version>Finchley.M8</spring-cloud.version></properties><dependencies><!--start jdk9需要引入的jar包，jdk8不需要--><dependency><groupId>javax.xml.bind</groupId><artifactId>jaxb-api</artifactId><version>2.3.0</version></dependency><dependency><groupId>com.sun.xml.bind</groupId><artifactId>jaxb-impl</artifactId><version>2.3.0</version></dependency><dependency><groupId>org.glassfish.jaxb</groupId><artifactId>jaxb-runtime</artifactId><version>2.3.0</version></dependency><dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1.1</version></dependency><!--end jdk9需要引入的jar包，jdk8不需要--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-config</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</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>Camden.SR3</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><repositories><repository><id>spring-snapshots</id><name>Spring Snapshots</name><url>https://repo.spring.io/snapshot</url><snapshots><enabled>true</enabled></snapshots></repository><repository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/milestone</url><snapshots><enabled>false</enabled></snapshots></repository></repositories>
</project>

项目启动类：

package com.wcy.config.client;import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/**** @Description: <br>* @Project: springcloud config <br>* @CreateDate: Created in 2018/4/29 19:17 <br>* @Author: <a href="836327318@qq.com">wcy</a>*/
@SpringBootApplication
@RestController
@EnableEurekaClient
public class SpringBootConfigClientApplication {@Value("${spring.config.demo}")String configInfo;@RequestMapping("/config")public String config(){return "configInfo:"+configInfo;}public static void main(String[] args) {SpringApplication.run(SpringBootConfigClientApplication.class, args);}
}

项目启动配置bootstrap.properties

spring.application.name=spring-config-client
//eureka注册中心的服务地址
eureka.client.serviceUrl.defaultZone=http://localhost:3000/eureka/
//配置中心服务的ip和端口
spring.cloud.config.uri=http://localhost:3001/
//如果配置文件是abc-test.properties,下面参数为test,
//如果配置文件为abc-d-test.properties,下面参数为d-test
spring.cloud.config.profile=test

启动项目之后我们会发现虽然我们没配置端口，但是项目启动的端口是3002，所以是从配置文件里面读取到有：server.port=3002

然后我们调用接口：http://localhost:3002/config

当前项目git地址：https://github.com/yilishuku/springcloud-config.git

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spring cloud config 统一配置管理

Euraka server 注册中心

config-server 配置中心

config-client 微服务配置调用项目

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