Spring cloud config 分布式配置中心（二） 客户端

创建一个新项目，这里我用的是IDEA

1：pom.xml

<?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.smart</groupId>
    <artifactId>configserver2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>config-server2</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.5.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>
    </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.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>Brixton.RELEASE</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>

注意：这里客户端的cloud依赖为：spring-cloud-starter-config，而服务器端是spring-cloud-config-server，否则会报错，提示类似不能生成bean，不能autowired之类

程序入口不用添加注解，用自动生成的就好

2：resource包下配置 bootstrap.properties 添加配置项

spring.application.name=didispace
spring.cloud.config.profile=dev
spring.cloud.config.label=master
spring.cloud.config.uri=http://localhost:7001/

server.port=7820

注意：上面的name项必须与仓库里面那一堆配置文件的名称一致

Git仓库里面的配置就是服务器那边的，如下：

didispace.properties

didispace-dev.properties

didispace-prod.properties

didispace-test.properties

3：建立一个controller 

package com.smart.web;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * Created by wanghan on 2018/4/26.
 */
@RefreshScope
@RestController
public class TestController {

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

    @RequestMapping("/service")
    public String from() {

        return this.from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getFrom() {
        return from;
    }
}

 4：启动服务访问 http://localhost:7820/service   会显示配置里面的内容

git-dev-1.0

由于bootstrap.properties里面访问的是didispace-dev.properties  所以上面访问结果就是Git仓库  didispace-dev.properties 文件的配置内容