微服务解决方案 -- Spring Cloud Alibaba （二）服务提供者
不了解此套教程的服务注册与发现可以移步第一章节微服务解决方案 – Spring Cloud Alibaba （一）服务的注册与发现
通用依赖
根据Nacos基本架构图中我们有一个Provider APP，他就是我们的服务提供者。我们首先创建一个通用的依赖dependencies
创建spring-cloud-alibaba-dependencies文件夹，并且创建pom.xml
<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>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.6.RELEASEversion>
parent>
<groupId>com.laoshirengroupId>
<artifactId>spring-cloud-alibaba-dependenciesartifactId>
<version>1.0.0-SNAPSHOTversion>
<packaging>pompackaging>
<description>spring cloud alibaba 统一的项目依赖description>
<properties>
<java.version>1.8java.version>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
<spring-cloud.version>Finchley.SR2spring-cloud.version>
<spring-cloud-alibaba.version>0.2.1.RELEASEspring-cloud-alibaba.version>
properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-dependenciesartifactId>
<version>${spring-cloud.version}version>
<type>pomtype>
<scope>importscope>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-alibaba-dependenciesartifactId>
<version>${spring-cloud-alibaba.version}version>
<type>pomtype>
<scope>importscope>
dependency>
dependencies>
dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-compiler-pluginartifactId>
<configuration>
<showWarnings>trueshowWarnings>
configuration>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-jar-pluginartifactId>
<configuration>
<archive>
<addMavenDescriptor>falseaddMavenDescriptor>
archive>
configuration>
<executions>
<execution>
<configuration>
<archive>
<manifest>
<addDefaultImplementationEntries>trueaddDefaultImplementationEntries>
<addDefaultSpecificationEntries>trueaddDefaultSpecificationEntries>
<addClasspath>trueaddClasspath>
manifest>
archive>
configuration>
execution>
executions>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-resources-pluginartifactId>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-install-pluginartifactId>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-clean-pluginartifactId>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-antrun-pluginartifactId>
plugin>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-dependency-pluginartifactId>
plugin>
plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-javadoc-pluginartifactId>
<executions>
<execution>
<phase>prepare-packagephase>
<goals>
<goal>jargoal>
goals>
execution>
executions>
plugin>
<plugin>
<groupId>net.alchim31.mavengroupId>
<artifactId>yuicompressor-maven-pluginartifactId>
<version>1.5.1version>
<executions>
<execution>
<phase>prepare-packagephase>
<goals>
<goal>compressgoal>
goals>
execution>
executions>
<configuration>
<encoding>UTF-8encoding>
<jswarn>falsejswarn>
<nosuffix>truenosuffix>
<linebreakpos>30000linebreakpos>
<force>trueforce>
<includes>
<include>**/*.jsinclude>
<include>**/*.cssinclude>
includes>
<excludes>
<exclude>**/*.min.jsexclude>
<exclude>**/*.min.cssexclude>
excludes>
configuration>
plugin>
plugins>
pluginManagement>
<resources>
<resource>
<directory>src/main/javadirectory>
<excludes>
<exclude>**/*.javaexclude>
excludes>
resource>
<resource>
<directory>src/main/resourcesdirectory>
resource>
resources>
build>
<repositories>
<repository>
<id>aliyun-reposid>
<name>Aliyun Repositoryname>
<url>http://maven.aliyun.com/nexus/content/groups/publicurl>
<releases>
<enabled>trueenabled>
releases>
<snapshots>
<enabled>falseenabled>
snapshots>
repository>
<repository>
<id>sonatype-reposid>
<name>Sonatype Repositoryname>
<url>https://oss.sonatype.org/content/groups/publicurl>
<releases>
<enabled>trueenabled>
releases>
<snapshots>
<enabled>falseenabled>
snapshots>
repository>
<repository>
<id>sonatype-repos-sid>
<name>Sonatype Repositoryname>
<url>https://oss.sonatype.org/content/repositories/snapshotsurl>
<releases>
<enabled>falseenabled>
releases>
<snapshots>
<enabled>trueenabled>
snapshots>
repository>
<repository>
<id>spring-snapshotsid>
<name>Spring Snapshotsname>
<url>https://repo.spring.io/snapshoturl>
<snapshots>
<enabled>trueenabled>
snapshots>
repository>
<repository>
<id>spring-milestonesid>
<name>Spring Milestonesname>
<url>https://repo.spring.io/milestoneurl>
<snapshots>
<enabled>falseenabled>
snapshots>
repository>
repositories>
<pluginRepositories>
<pluginRepository>
<id>aliyun-reposid>
<name>Aliyun Repositoryname>
<url>http://maven.aliyun.com/nexus/content/groups/publicurl>
<releases>
<enabled>trueenabled>
releases>
<snapshots>
<enabled>falseenabled>
snapshots>
pluginRepository>
pluginRepositories>
project>
让其被IDEA托管，我们所有的项目都将直接或间接继承这个dependencies项目
服务提供者
创建spring-cloud-alibaba-nacos-provider文件夹，并且创建pom.xml
<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>4.0.0modelVersion>
<parent>
<groupId>com.laoshirengroupId>
<artifactId>spring-cloud-alibaba-dependenciesartifactId>
<version>1.0.0-SNAPSHOTversion>
<relativePath>../spring-cloud-alibaba-dependencies/pom.xmlrelativePath>
parent>
<artifactId>spring-cloud-alibaba-nacos-providerartifactId>
<packaging>jarpackaging>
<name>spring-cloud-alibaba-nacos-providername>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-actuatorartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discoveryartifactId>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<mainClass>com.laoshiren.alibaba.nacos.provider.NacosProviderApplicationmainClass>
configuration>
plugin>
plugins>
build>
project>
application.yml
spring:
application:
## 应用程序名必须要有，nacos 有naming server
name: nacos-provider
cloud:
## nacos 配置
nacos:
discovery:
server-addr: 127.0.0.1:8848
server:
port: 8500
## 端点检查
management:
endpoints:
web:
exposure:
include: "*"
Application.java
package com.laoshiren.alibaba.nacos.provider;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
/**
* ProjectName: spring-cloud-alibaba
* Package: com.laoshiren.alibaba.nacos.provider
* ClassName: NacosProviderApplication
* Author: laoshiren
* Date: 2019/12/23 13:15
* Version: 1.0.0
* Description: 服务提供者 启动类
*/
@SpringBootApplication
// 注解表明是一个 Nacos 客户端，该注解是 Spring Cloud 提供的原生注解
@EnableDiscoveryClient
public class NacosProviderApplication {
public static void main(String[] args) {
SpringApplication.run(NacosProviderApplication.class,args);
}
}
最后随便写一个hello world的controller
@RestController
public class HelloController {
@GetMapping(value = "/hello/{message}")
public String hello(@PathVariable String message) {
return "Hello Nacos your message is: " + message;
}
}
启动程序
访问http://localhost:8500/hello/world，页面上打印内容正确
访问 http://localhost:8848/nacos，即Nacos Server网址，可以发发现一个服务已经注册在服务中了，服务名为 nacos-provider，就是yml配置的application name。
