前言
本文主要给大家分享了关于spring cloud的入门教程，主要介绍了config配置的相关内容，下面话不多说了，来一起看看看详细的介绍吧。
简介
Spring cloud config 分为两部分 server client
config-server
创建config-server
首先创建config-server工程.
文件结构：
├── config-server.iml ├── pom.xml └── src ├── main │ ├── java │ │ └── com │ │ └── lkl │ │ └── springcloud │ │ └── config │ │ └── server │ │ └── Application.java │ └── resources │ ├── application.properties │ └── bootstrap.properties └── test └── java
pom.xml内容：
<?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>1.2.3.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <groupId>com.lkl.springcloud</groupId> <artifactId>spring-cloud-config-server</artifactId> <version>1.0-SNAPSHOT</version> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-config</artifactId> <version>1.0.4.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> <!--表示为web工程--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--暴露各种指标--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-config-server</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
创建启动类
Application.Java
package com.lkl.springcloud.config.server;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.config.server.EnableConfigServer;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.bind.annotation.RestController;
/**
* Created by liaokailin on 16/4/28.
*/
@Configuration
@EnableAutoConfiguration
@RestController
@EnableConfigServer
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
其中 @EnableConfigServer为关键注解
在resources文件下创建application.properties
server.port=8888
配置工程监听端口8888，默认情况下client通过读取http://localhost:8888获取配置信息
创建bootstrap.properties
spring.cloud.config.server.git.uri: https://github.com/liaokailin/config-repo
该配置信息通过fork https://github.com/spring-cloud-samples/config-repo （本地下载）得到
通过spring.cloud.config.server.Git.uri指定配置信息存储的git地址
运行config-server
spring boot工程很方便启动，运行Application.java即可
获取git上的资源信息遵循如下规则：
/{application}/{profile}[/{label}]
/{application}-{profile}.yml
/{label}/{application}-{profile}.yml
/{application}-{profile}.properties
/{label}/{application}-{profile}.properties
application:表示应用名称,在client中通过spring.config.name配置
profile:表示获取指定环境下配置，例如开发环境、测试环境、生产环境 默认值default，实际开发中可以是 dev、test、demo、
production等
label: git标签，默认值master
如果application名称为foo，则可以采用如下方式访问：
http://localhost:8888/foo/default
http://localhost:8888/foo/development
只要是按照上面的规则配置即可访问.
config-client
创建config-client
目录结构如下：
├── pom.xml ├── spring-cloud-config-client.iml └── src ├── main │ ├── java │ │ └── com │ │ └── lkl │ │ └── springcloud │ │ └── config │ │ └── client │ │ └── Application.java │ └── resources │ └── bootstrap.yml └── test └── java
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.lkl.springcloud</groupId> <artifactId>spring-cloud-config-client</artifactId> <version>1.0-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.2.3.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-parent</artifactId> <version>1.0.1.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-config-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>http://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>http://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </pluginRepository> </pluginRepositories> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
创建启动类Application.java
package com.lkl.springcloud.config.client;
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;
/**
* Created by liaokailin on 16/4/28.
*/
@SpringBootApplication
@RestController
public class Application {
@Value("${name:World!}")
String bar;
@RequestMapping("/")
String hello() {
return "Hello " + bar + "!";
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
创建bootstrap.properties文件，其内容如下：
spring.application.name: foo spring.cloud.config.env:default spring.cloud.config.label:master spring.cloud.config.uri:http://localhost:8888
其中 spring.application.name 为应用名称，spring.cloud.config.uri 配置config-server暴露的获取配置接口,其默认值为http://localhost:8888
第二三项配置在前面已经提到过，配置的都为默认值，因此bootstrap.properties只需要配置应用名即可.
运行config-client
访问 http://localhost 得到 `Hello liaokailin` 获取到git上的配置信息
访问 http://localhost/env 得到所有的配置信息，可以发现获取配置信息成功.
{
profiles: [ ],
configService:https://github.com/liaokailin/config-repo/foo.properties: {
name: "liaokailin",
foo: "devoxxfr"
},
configService:https://github.com/liaokailin/config-repo/application.yml: {
info.description: "Spring Cloud Samples--lkl",
info.url: "https://github.com/spring-cloud-samples",
eureka.client.serviceUrl.defaultZone: "http://localhost:8761/eureka/"
},
commandLineArgs: {
spring.output.ansi.enabled: "always"
},
servletContextInitParams: { },
...}
ok ~ it's work ! more about is here（本地下载）
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对亿速云的支持。
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