SpringBoot-config_springboot config-优快云博客

本文链接：https://blog.youkuaiyun.com/shumeigang/article/details/91983493

本文详细介绍Spring Cloud Config作为配置管理工具的使用方法，包括如何搭建配置服务端(config-server)和配置客户端(config-client)，并提供了本地文件和远程Git仓库两种方式的实例教程。

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一、简介

Spring Cloud Config是一个配置管理工具包，让你可以把配置放到远程服务器，集中化管理集群配置，目前支持本地存储、Git以及Subversion。
Spring Cloud Config分为两部分

config-server：配置服务端，负责管理配置信息
config-client：配置客户端，通过调用server端暴露的接口来换取配置信息

二、项目实例（取本地文件实例）

2.1 config-server 服务端

2.1.1在pom.xml中加入以下依赖

<?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>2.1.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</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.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>25.1-jre</version>
        </dependency>
        <dependency>
            <groupId>com.diffplug.guava</groupId>
            <artifactId>guava-cache</artifactId>
            <version>19.0.0</version>
        </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>

2.1.2 application.properties 配置

spring.application.name:configService
server.port=8888
#服务注册的Eureka Server地址
spring.cloud.config.server.native.searchLocations=D:/conf
spring.profiles.active=native //本地文件必须加此设置

2.1.3 D:/conf 文件

文件内容

2.1.4 开启Config Server

package com.example.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;



@EnableConfigServer
@SpringBootApplication
public class DemoApplication {

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


}

2.1.5 运行结果：

2.2 config-client客户端

2.2.1在pom.xml中加入以下依赖

<?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>2.1.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</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.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
       <!-- <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>


        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-client</artifactId>
        </dependency>
        -->

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-netflix-core</artifactId>
            <version>2.1.1.RELEASE</version>
            <scope>compile</scope>
        </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>

2.2.2 application.properties 配置

spring.application.name:configClientdemo3
server.port=8889

spring.cloud.config.uri= http://localhost:8888/
spring.cloud.config.discovery.enabled=true
spring.cloud.config.profile=dev  //必须要设置
##spring.cloud.config.name=configClientdemo3
##spring.cloud.config.discovery.service-id=configService

2.2.3 开启config-client

package com.example.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@SpringBootApplication
@RestController

public class DemoApplication {

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

   @Value("${name}")
    private  String name;

    @RequestMapping("/home")
    public String home() {
        return "Hello " + name;
    }
}

2.2.4 运行结果：

三、项目实例（取本网上）

3.1项目图

3.2 config-server 服务端

3.2.1在pom.xml中加入以下依赖 (同上)

3.2.2application.properties 配置

spring.application.name:configService
server.port=8808

#服务注册的Eureka Server地址

#spring.cloud.config.server.native.searchLocations=D:/conf
#spring.profiles.active=native
spring.cloud.config.server.git.uri=https://github.com/Liu19950513/config-reop.git
spring.cloud.config.server.git.username=984092512@qq.com
spring.cloud.config.server.git.password=asd13579
#spring.cloud.config.server.git.search-paths=configClientdemo
  ##07-springcloud-config

##spring.cloud.config.discovery.service-id=config-server
##spring.cloud.config.name=config-reop
#开启Config服务发现支持
##spring.cloud.config.discovery.enabled=true
##spring.cloud.config.discovery.service-id=configService

3.2.3 spring.cloud.config.server.git.uri

注意： configClientdemo-dev.yml 里文件名称 configClientdemo 必须与 Config Server 项目名同名

3.2.4 开启Config Server 同上

package com.example.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;



@EnableConfigServer
@SpringBootApplication
public class DemoApplication {

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


}

3.2.5 运行结果

3.3 config-client客户端

3.3.1在pom.xml中加入以下依赖与 2.1.1在pom.xml中加入以下依赖 (一样)

3.3.2application.properties 配置

spring.application.name=configClientdemo
server.port=8771

spring.cloud.config.uri=http://127.0.0.1:8808/
##spring.cloud.config.discovery.enabled=true
##spring.cloud.config.label=master
spring.cloud.config.profile=dev

3.3.3 开启config-client

package com.example.demo;


import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@SpringBootApplication
@RestController
public class DemoApplication {



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

    @Value("${name}")
    private  String name;

    @RequestMapping("/home")
    public String home() {
        return "Hello " + name;
    }
}