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 配置服务端,服务管理配置信息
- config-client 客户端,客户端调用server端暴露接口获取配置信息
config-server
创建config-server
首先创建config-server工程.
文件结构:
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├── config-server.iml
├── pom.xml
└── src
├── main
│ ├── java
│ │ └── com
│ │ └── lkl
│ │ └── springcloud
│ │ └── config
│ │ └── server
│ │ └── Application.java
│ └── resources
│ ├── application.properties
│ └── bootstrap.properties
└── test
└── java
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pom.xml内容:
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<? 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 >
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创建启动类
Application.Java
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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);
}
}
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其中 @EnableConfigServer为关键注解
在resources文件下创建application.properties
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server.port= 8888
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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
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spring.cloud.config.server.git.uri: https: //github.com/liaokailin/config-repo
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该配置信息通过fork https://github.com/spring-cloud-samples/config-repo 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:
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/{application}/{profile}[/{label}]
/{application}-{profile}.yml
/{label}/{application}-{profile}.yml
/{application}-{profile}.properties
/{label}/{application}-{profile}.properties
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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:
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├── pom.xml
├── spring-cloud-config-client.iml
└── src
├── main
│ ├── java
│ │ └── com
│ │ └── lkl
│ │ └── springcloud
│ │ └── config
│ │ └── client
│ │ └── Application.java
│ └── resources
│ └── bootstrap.yml
└── test
└── java
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pom.xml
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<? 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 >
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创建启动类Application.java
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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);
}
}
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创建bootstrap.properties文件,其内容如下:
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spring.application.name: foo
spring.cloud.config.env: default
spring.cloud.config.label:master
spring.cloud.config.uri:http: //localhost:8888
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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.
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.
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{
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: { },
...}
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ok ~ it's work ! more about is here
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,谢谢大家对服务器之家的支持。
原文链接:http://blog.csdn.net/a60782885/article/details/69415527