标签：XML end link web apache schema maven type rip
Spring Cloud Alibaba 致力于提供微服务开发的一站式解决方案，Nacos 作为其核心组件之一，可以作为注册中心和配置中心使用 。
Nacos 致力于帮助您发现、配置和管理微服务。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据及流量管理。
Nacos 具有如下特性:
服务发现和服务健康监测：支持基于DNS和基于RPC的服务发现，支持对服务的实时的健康检查，阻止向不健康的主机或服务实例发送请求；
动态配置服务：动态配置服务可以让您以中心化、外部化和动态化的方式管理所有环境的应用配置和服务配置；
服务及其元数据管理：支持从微服务平台建设的视角管理数据中心的所有服务及元数据。
我们先从官网下载Nacos，这里下载的是nacos-server-1.3.1.zip文件，下载地址：
配置JAVA_HOME环境变量，不配置会导致无法运行Nacos；
JAVA_HOME=D:\developer\env\Java\jdk1.8.0_91
复制代码
解压安装包，直接运行bin目录下的startup.cmd；
运行成功后，访问http://localhost:8848/nacos可以查看Nacos的主页，默认账号密码都是nacos。
我们通过改造consul-demo-service和consul-ribbon-service来演示下服务注册与发现的功能，主要是将应用原来的Consul注册中心支持改为Nacos注册中心支持。
创建nacos-demo-service模块和nacos-ribbon-service模块；
nacos-demo-service
pom.xml文件
<?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 https://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>2.2.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> ? ? <groupId>com.reno</groupId> <artifactId>springcloud.nacos.demo</artifactId> <version>1.0</version> <name>springcloud.nacos.demo</name> <description>Demo project for Spring Boot</description> ? ? <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Hoxton.RELEASE</spring-cloud.version> </properties> ? ? <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> ? <!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-nacos-discovery --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> <version>2.1.1.RELEASE</version> </dependency> ? ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </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> ? ? <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> ? ? <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> ? </project> ?
yml文件
server:
port: 38206
spring:
application:
name: nacos-demo-service
cloud:
nacos:
discovery:
server-addr: localhost:8848 #配置Nacos地址
management:
endpoints:
web:
exposure:
include: ‘*‘
?
?
nacos-ribbon-service
pom文件
<?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 https://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>2.2.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> ? ? <groupId>com.reno</groupId> <artifactId>springcloud.nacos.ribbon</artifactId> <version>1.0</version> <name>springcloud.nacos.ribbon</name> <description>Demo project for Spring Boot</description> ? ? <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Hoxton.RELEASE</spring-cloud.version> </properties> ? ? <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> ? <!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-nacos-discovery --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> <version>2.1.1.RELEASE</version> </dependency> ? ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> ? <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-ribbon</artifactId> </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> ? ? <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> ? ? ? <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> ? </project> ?
yml文件
server:
port: 38338
spring:
application:
name: nacos-ribbon-service
cloud:
nacos:
discovery:
server-addr: localhost:8848
service-url:
nacos-demo-service: http://nacos-demo-service
?
运行nacos-demo-service和nacos-ribbon-service，在Nacos页面上可以看到如下信息：
由于我们运行了两个nacos-demo-service，而nacos-ribbon-service默认会去调用它的接口，我们调用nacos-ribbon-service的接口来演示下负载均衡功能。
多次调用接口： http://localhost:38338/nacosRibbon/1 ，可以发现两个nacos-demo-service的控制台交替打印信息
我们通过创建nacos-config-client模块，并在Nacos页面中添加配置信息来演示下配置管理的功能。
pom文件
<?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 https://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>2.2.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> ? ? <groupId>com.reno</groupId> <artifactId>springcloud.nacos.config.client</artifactId> <version>1.0</version> <name>springcloud.nacos.config.client</name> <description>Demo project for Spring Boot</description> ? ? <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Hoxton.RELEASE</spring-cloud.version> </properties> ? ? <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> ? <!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-nacos-discovery --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> <version>2.1.1.RELEASE</version> </dependency> ? ? <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> ? ? <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId> <version>2.1.1.RELEASE</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> ? ? <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> ? ? ? <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> ? </project> ?
yml文件
server:
port: 39121
spring:
application:
name: nacos-config-client
cloud:
nacos:
discovery:
server-addr: localhost:8848 #Nacos地址
config:
server-addr: localhost:8848 #Nacos地址
file-extension: yaml #这里我们获取的yaml格式的配置
我们先来讲下Nacos中的dataid的组成格式及与SpringBoot配置文件中的属性对应关系：
${spring.application.name}-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}
比如说我们现在要获取应用名称为nacos-config-client的应用在dev环境下的yaml配置，dataid如下：
nacos-config-client-dev.yaml
按照以上dataid添加如下配置：
config: info: "config info for dev"
填写配置示意图：
启动nacos-config-client，调用接口查看配置信息： http://localhost:39121/configInfo
config info for dev
Spring Cloud Alibaba：Nacos 作为注册中心和配置中心使用
标签：XML end link web apache schema maven type rip
原文地址：https://www.cnblogs.com/reno2020/p/14399012.html
