spring cloud學(xué)習(xí)入門之config配置教程

更新時(shí)間：2017年09月04日 09:49:39 作者：a60782885

這篇文章主要給大家介紹了關(guān)于spring cloud學(xué)習(xí)入門之config配置的相關(guān)資料，文中通過(guò)示例代碼介紹的非常詳細(xì)，對(duì)大家學(xué)習(xí)或者使用spring cloud具有一定的參考學(xué)習(xí)價(jià)值，需要的朋友們下面隨著小編來(lái)一起學(xué)習(xí)學(xué)習(xí)吧。

前言

本文主要給大家分享了關(guān)于spring cloud的入門教程，主要介紹了config配置的相關(guān)內(nèi)容，下面話不多說(shuō)了，來(lái)一起看看看詳細(xì)的介紹吧。

簡(jiǎn)介

Spring cloud config 分為兩部分 server client

config-server 配置服務(wù)端，服務(wù)管理配置信息
config-client 客戶端，客戶端調(diào)用server端暴露接口獲取配置信息

config-server

創(chuàng)建config-server

首先創(chuàng)建config-server工程.

文件結(jié)構(gòu)：

├── config-server.iml
├── pom.xml
└── src
 ├── main
 │ ├── java
 │ │ └── com
 │ │ └── lkl
 │ │ └── springcloud
 │ │ └── config
 │ │  └── server
 │ │  └── Application.java
 │ └── resources
 │ ├── application.properties
 │ └── bootstrap.properties
 └── test
 └── java

pom.xml內(nèi)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>

 <!--表示為web工程-->
 <dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-web</artifactId>
 </dependency>

 <!--暴露各種指標(biāo)-->
 <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>

創(chuàng)建啟動(dòng)類

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為關(guān)鍵注解

在resources文件下創(chuàng)建application.properties

server.port=8888

配置工程監(jiān)聽(tīng)端口8888，默認(rèn)情況下client通過(guò)讀取http://localhost:8888獲取配置信息

創(chuàng)建bootstrap.properties

spring.cloud.config.server.git.uri: https://github.com/liaokailin/config-repo

該配置信息通過(guò)fork https://github.com/spring-cloud-samples/config-repo （本地下載）得到

通過(guò)spring.cloud.config.server.Git.uri指定配置信息存儲(chǔ)的git地址

運(yùn)行config-server

spring boot工程很方便啟動(dòng)，運(yùn)行Application.java即可

獲取git上的資源信息遵循如下規(guī)則：

/{application}/{profile}[/{label}]
/{application}-{profile}.yml
/{label}/{application}-{profile}.yml
/{application}-{profile}.properties
/{label}/{application}-{profile}.properties

application:表示應(yīng)用名稱,在client中通過(guò)spring.config.name配置

profile:表示獲取指定環(huán)境下配置，例如開(kāi)發(fā)環(huán)境、測(cè)試環(huán)境、生產(chǎn)環(huán)境默認(rèn)值default，實(shí)際開(kāi)發(fā)中可以是 dev、test、demo、

production等

label: git標(biāo)簽，默認(rèn)值master

如果application名稱為foo，則可以采用如下方式訪問(wèn)：

http://localhost:8888/foo/default

http://localhost:8888/foo/development

只要是按照上面的規(guī)則配置即可訪問(wèn).

config-client

創(chuàng)建config-client

目錄結(jié)構(gòu)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>

創(chuàng)建啟動(dòng)類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);
 }
}

創(chuàng)建bootstrap.properties文件，其內(nèi)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 為應(yīng)用名稱，spring.cloud.config.uri 配置config-server暴露的獲取配置接口,其默認(rèn)值為http://localhost:8888

第二三項(xiàng)配置在前面已經(jīng)提到過(guò)，配置的都為默認(rèn)值，因此bootstrap.properties只需要配置應(yīng)用名即可.

運(yùn)行config-client

訪問(wèn) http://localhost 得到 `Hello liaokailin` 獲取到git上的配置信息

訪問(wèn) http://localhost/env 得到所有的配置信息，可以發(fā)現(xiàn)獲取配置信息成功.

{
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（本地下載）

總結(jié)

以上就是這篇文章的全部?jī)?nèi)容了，希望本文的內(nèi)容對(duì)大家的學(xué)習(xí)或者工作能帶來(lái)一定的幫助，如果有疑問(wèn)大家可以留言交流，謝謝大家對(duì)腳本之家的支持。

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