【SpringCloudAlibaba】针对Alibaba微服务进行实战-并安装windwos版本的Nacos【Demo】

前言

本篇博客主要是针对alibaba的微服务进行demo练习，nacos安装与使用，

---

• pom文件引入
  

 <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-alibaba-dependencies</artifactId>
      <version>2.1.0.RELEASE</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>

alibaba微服务主要的组件：

Nacos安装：
https://github.com/alibaba/nacos/releases

上面版本由于各种原因最后没有下载下来，从百度网盘下载了一个1.2的版本：

• 运行成功：

Nacos服务提供者注册：

• 创建Module
  
  
  
  
• 修改POM

<?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>
        <artifactId>com.zcw.springcloud2020508</artifactId>
        <groupId>com.zcw</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloudalibaba-provider-payment9001</artifactId>
    <dependencies>
        <!--springCloud alibaba naocs-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!--SpringBoot 整合web组件-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--日常通用jar包配置-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>

</project>

• 创建YML

server:
  port: 9001

spring:
  application:
    name: nacos-payment-provider
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848 # nacos地址
management:
  endpoints:
    web:
      exposure:
        include: '*'

• 修改启动类

package com.zcw.springcloud.alibaba;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

/**
 * @ClassName : PaymentApplication9001
 * @Description :
 * @Author : Zhaocunwei
 * @Date: 2020-05-22 10:24
 */
@EnableDiscoveryClient
@SpringBootApplication
public class PaymentApplication9001 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentApplication9001.class,args);
    }
}

• 创建业务类

package com.zcw.springcloud.alibaba.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

/**
 * @ClassName : PaymentController
 * @Description :
 * @Author : Zhaocunwei
 * @Date: 2020-05-22 10:28
 */
@RestController
public class PaymentController {
    @Value("${server.port}")
    private String serverPort;
    @GetMapping(value = "/payment/nacons/{id}")
    public String getPayment(@PathVariable("id") Integer id){
        return  "nacos registry,serverPort:" + serverPort+"\t id " + id;
    }
}

• 测试
  
  
• 创建与9001端口不一样的9002
  
  
  Nacos服务消费者注册和负载：
• 新建module
  
  
  
  
• 修改POM

<?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>
        <artifactId>com.zcw.springcloud2020508</artifactId>
        <groupId>com.zcw</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloudalibaba-consumer-nacos-order8083</artifactId>
    <dependencies>
        <!--Springcloud alibabaa nacos-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.zcw</groupId>
            <artifactId>cloud-api-commons</artifactId>
            <version>${project.version}</version>
        </dependency>
        <!--springBoot 整合web组件-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <!--日常通用jar包配置-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

• 创建YML

server:
  port: 8083


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


# 消费者将要去访问的微服务名称（注册成功进nacos的微服务提供者）
service-url:
  nacos-user-service: http://nacos-payment-provider

• 修改启动类

package com.zcw.springcloud.alibaba;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

/**
 * @ClassName : OrderNacosApplication8083
 * @Description :
 * @Author : Zhaocunwei
 * @Date: 2020-05-22 11:02
 */
@EnableDiscoveryClient
@SpringBootApplication
public class OrderNacosApplication8083 {
    public static void main(String[] args) {
        SpringApplication.run(OrderNacosApplication8083.class,args);
    }
}

• 创建业务类

package com.zcw.springcloud.alibaba.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

/**
 * @ClassName : ApplicationContextConfig
 * @Description :
 * @Author : Zhaocunwei
 * @Date: 2020-05-22 11:04
 */
@Configuration
public class ApplicationContextConfig {
    @Bean
    @LoadBalanced
    public RestTemplate getRestTemplate(){
        return  new RestTemplate();
    }
}

package com.zcw.springcloud.alibaba.controller;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;

/**
 * @ClassName : OrderNacosController
 * @Description :
 * @Author : Zhaocunwei
 * @Date: 2020-05-22 11:05
 */
@RestController
@Slf4j
public class OrderNacosController {
    @Resource
    private RestTemplate restTemplate;

    @Value("${service-url.nacos-user-service}")
    private String serverURL;

    @GetMapping(value = "/consumer/payment/nacos/{id}")
    public String paymentInfo(@PathVariable("id") Long id ){
        return restTemplate.getForObject(serverURL+"/payment/nacons/"+id,String.class);
    }
}

• 测试