Nacos--服务搭建以及SpringBoot整合--方法/实例

原文网址：Nacos--服务搭建以及SpringBoot整合--方法/实例_IT利刃出鞘的博客-CSDN博客

简介

说明

        本文用示例介绍如何搭建Nacos服务并在SpringBoot中整合Nacos。

官方网址

官网文档：https://nacos.io/zh-cn/docs/what-is-nacos.html

github网址：https://github.com/alibaba/nacos

1.安装Nacos

下载：https://github.com/alibaba/nacos/releases

本处我下载的版本为：nacos-server-1.4.3

2.运行Nacos

Linux/Unix/Mac

启动命令(standalone代表着单机模式运行，非集群模式):

sh startup.sh -m standalone

如果您使用的是ubuntu系统，或者运行脚本报错提示[[符号找不到，可尝试如下运行：

bash startup.sh -m standalone

Windows

启动命令(standalone代表着单机模式运行，非集群模式):

startup.cmd -m standalone

本处是Windows，运行结果：

3.访问nacos

访问地址：http://localhost:8848/nacos
账号：nacos
密码：nacos

配置管理

服务管理

4.创建SpringBoot项目

依赖

主要是nacos的依赖：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>2021.1</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>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    </dependency>

    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        <exclusions>
            <exclusion>
                <groupId> springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-loadbalancer</artifactId>
    </dependency>
<dependencies>

整个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">
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.13</version>
    </parent>
    <artifactId>order-core</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>order</name>
    <packaging>jar</packaging>
    <description>Demo project for Spring Boot</description>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2021.1</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>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <exclusions>
                <exclusion>
                    <groupId> springframework.cloud</groupId>
                    <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-loadbalancer</artifactId>
        </dependency>
        
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <!--支持feign缓存-->
        <dependency>
            <groupId>com.github.ben-manes.caffeine</groupId>
            <artifactId>caffeine</artifactId>
            <version>2.9.3</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>

    </dependencies>

    <build>
        <plugins>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.4.13</version>
            </plugin>

        </plugins>
    </build>

</project>

配置文件

bootstrap.yml

spring:
  application:
    name: order
  cloud:
    nacos:
      config:
        server-addr: 127.0.0.1:8848

application.yml

server:
  port: 9012

spring:
  application:
    name: order
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848

feign:
  httpclient:
    enabled: false
  okhttp:
    enabled: true

5.启动SpringBoot项目

使用Idea启动order项目：

nacos结果：

可以看到，服务已经成功注册到nacos。

此时即可使用SpringCloud的feign进行微服务调用，本处省略。