第5.1.5 SpringCloudConfig

从下图可以看出，SpringCloudConfig用于统一管理各微服务的配置信息，例如数据库连接、redis连接、日志配置等跟各自系统有关的属性配置。采用此架构后，只需要将配置信息上传到svn或git上，通过http请求刷新可以实现各个环境的热部署。

以往的系统都是采取application-环境后缀的方式，

采用springcloudconfig，就不需要了，只需要配置bootstrap.yml就可以了
1 config server
搭建configserver比较简单，代码量很少。
1.1 配置启动服务
也就这一个代码了

import lombok.extern.slf4j.Slf4j;
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;

@SpringBootApplication
@EnableEurekaClient
@EnableConfigServer
@Slf4j
public class ConfigServerApplication {

    public static void main(String[] args) {
        try{
            SpringApplication.run(ConfigServerApplication.class, args);
        }finally {
            log.info("server start finish");
        }
    }
}

1.2 pom.xml
从下面的配置可以看出，configserver的配置更新是通过消息队列来通知的。

<?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.dzmsoft</groupId>
    <artifactId>config-server</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>

    <name>config-server</name>
    <description>统一配置中心</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.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.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-config</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-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.tmatesoft.svnkit</groupId>
            <artifactId>svnkit</artifactId>
            <version>1.9.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.14</version>
            <scope>provided</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>
        <finalName>${name}</finalName>
        <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>

1.3 bootstrapy.yml
这里链接配置采取的是对接svn的方式，消息队列通过SpringCloud Bus对接RabbitMQ，敏感信息通过JCE进行加密

server:
  port: 9015
spring:
  profiles:
    active: subversion
  application:
    name: config-server
  cloud:
    config:
      server:
        svn:
          uri: https://ip:port/svn/config
          username: test
          password: 123456
  rabbitmq:
    host: 192.168.5.130
    port: 5672
    username: test
    password: test123
eureka:
  instance:
    #每5秒发送一次请求给eureka服务器
    lease-renewal-interval-in-seconds: 5
    #多久剔除服务
    lease-expiration-duration-in-seconds: 10
    preferIpAddress: true
    statusPageUrlPath: /actuator/info
    healthCheckUrlPath: /actuator/health
  client:
    service-url:
      defaultZone: http://192.168.5.102:8761/eureka
management:
  endpoints:
    web:
      exposure:
        include: bus-refresh
encrypt:
  key-store:
    location: classpath:config-server.keystore
    alias: config-server
    password: test
    secret: 123456

1.4 敏感信息加密
local_policy.jar和US_export_policy.jar可以在JCE下载
在服务器环境，将附件中 2个jar 放至 %JAVA_HOME%/jre/lib/security 目录下
在客户端配置文件使用“{cipher} 密文”来保存加密数据
例如：password: ‘{cipher}AQAQBnh2Gl488iZP29mRX6E3TzzfoQLFxGEzhpeoaHgz2ZN3usfP5IQljpBYQmMC23OqAj0gj1cY9XroJB4U2N/8Bs1cjwAqy2biOVboQma4EjRpVghWI8hc6IzReOCAPEYV1L9O7F+EODcvI5Y0Ub3S6d4MboKMSS3yazJZz6IkaGPstUCqDqKFigj7G24sQSVk5jaPZdwynORL7NZb6WLfmAVyQh6fOTe95TPXDpze//P9ICFAAG4PpMEDqNIm05apvXDbPl921RPA9OuIJv05Gc9xbJ622e3e1x7ZVwkNiuPBDD4QNGmZWfLe80XEs3FvMQdZgV68MuYUL6TsJIhzvzeijwoOvKHsA/MZxHFjIR6puaEntf4fhIkyPV73V8I=’
2 客户端配置
2.1 bootstrap.yml
客户端只需要配置bootstrap.yml即可，这里连接的是eureka

spring:
  application:
    name: mp-server
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
    default-property-inclusion: non_null
  cloud:
    # 读取配置中心配置
    config:
      discovery:
        enabled: true
        service-id: config-server
      profile: dev
      label: mp-server
    bus:
      trace:
        enabled: true
server:
  port: 8093
eureka:
  instance:
    #每5秒发送一次请求给eureka服务器
    lease-renewal-interval-in-seconds: 5
    #多久剔除服务
    lease-expiration-duration-in-seconds: 10
    preferIpAddress: true
    statusPageUrlPath: /actuator/info
    healthCheckUrlPath: /actuator/health
  client:
    service-url:
      defaultZone: http://192.168.5.207:8761/eureka/,http://192.168.5.180:8761/eureka/,http://192.168.5.154:8761/eureka/

2.2 客户端在svn中的配置文件
将这三个文件上传到svn中https://ip:port/svn/config/工程名称目录下

2.3 刷新配置
可以使用postman工具，向config server发送配置刷新post请求，没有异常即算配置成功。

第5.1.5 SpringCloudConfig

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