SpringCloud + Eureka / Nacos

git：https://github.com/huanmsf/springCloudLearn.git

项目目录:

父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">

    <modelVersion>4.0.0</modelVersion>

    <groupId>spring.cloud.learn</groupId>

    <artifactId>sc-learn</artifactId>

    <packaging>pom</packaging>

    <version>1.0-SNAPSHOT</version>

    <modules>

        <module>api</module>

        <module>consumer-eureka</module>

        <module>consumer-nacos</module>

        <module>provider-eureka</module>

        <module>provider-nacos</module>

        <module>eureka-server</module>

    </modules>

    <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>Finchley.RELEASE</spring-cloud.version>

        <spring-boot.version>2.0.4.RELEASE</spring-boot.version>

        <maven.compiler.source>1.8</maven.compiler.source>

        <maven.compiler.target>1.8</maven.compiler.target>

    </properties>

    <dependencyManagement>

        <dependencies>

            <dependency>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-dependencies</artifactId>

                <version>${spring-boot.version}</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-dependencies</artifactId>

                <version>${spring-cloud.version}</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>

                <version>0.2.1.RELEASE</version>

            </dependency>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>

                <version>0.2.1.RELEASE</version>

            </dependency>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>

                <version>2.1.1.RELEASE</version>

            </dependency>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>

                <version>2.0.0.RELEASE</version>

            </dependency>

            <dependency>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-starter-web</artifactId>

                <version>2.0.3.RELEASE</version>

            </dependency>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-starter-openfeign</artifactId>

                <version>2.1.1.RELEASE</version>

            </dependency>

        </dependencies>

    </dependencyManagement>

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>

基于Eureka的服务注册和发现 provider-eureka

目录

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>

    <parent>

        <groupId>spring.cloud.learn</groupId>

        <artifactId>sc-learn</artifactId>

        <version>1.0-SNAPSHOT</version>

        <relativePath>../pom.xml</relativePath>

    </parent>

    <groupId>sc.learn.provider.eureka</groupId>

    <artifactId>provider-eureka</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>provider-eureka</name>

    <description>Demo project for Spring Boot</description>

    <dependencies>

        <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>

        <dependency>

            <groupId>spring.cloud.learn.api</groupId>

            <artifactId>api</artifactId>

            <version>1.0-SNAPSHOT</version>

            <scope>compile</scope>

        </dependency>

        <dependency>

            <groupId>spring.cloud.learn.api</groupId>

            <artifactId>api</artifactId>

            <version>2.1.4.RELEASE</version>

            <scope>compile</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>

        </dependency>

    </dependencies>

</project>

application.yml

server:

  port: 7070

spring:

  application:

    name: provider-eureka

eureka:

  client:

    serviceUrl:

      defaultZone: http://localhost:8888/eureka/

ProviderEurekaApplication

@SpringBootApplication

@EnableEurekaClient

public class ProviderEurekaApplication {

    public static void main(String[] args) {

        SpringApplication.run(ProviderEurekaApplication.class, args);

    }

}

EchoServiceController

@RestController

@RequestMapping("/pe")

public class EchoServiceController {

    @Autowired

    private EchoService echoService;

    @GetMapping("/echo")

    public String echo(@RequestParam String name) {

        return echoService.echo(name);

    }

}

结果

基于Eureka的服务注册和发现 consumer-eureka

目录

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>

    <parent>

        <groupId>spring.cloud.learn</groupId>

        <artifactId>sc-learn</artifactId>

        <version>1.0-SNAPSHOT</version>

        <relativePath>../pom.xml</relativePath>

    </parent>

    <groupId>sc.learn.consumer.eureka</groupId>

    <artifactId>consumer-eureka</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>consumer-eureka</name>

    <description>Demo project for Spring Boot</description>

    <dependencies>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-openfeign</artifactId>

        </dependency>

        <dependency>

            <groupId>spring.cloud.learn.api</groupId>

            <artifactId>api</artifactId>

            <version>1.0-SNAPSHOT</version>

            <scope>compile</scope>

        </dependency>

        <dependency>

            <groupId>spring.cloud.learn.api</groupId>

            <artifactId>api</artifactId>

            <version>2.1.4.RELEASE</version>

            <scope>compile</scope>

        </dependency>

    </dependencies>

</project>

application.yml

server:

  port: 7000

spring:

  application:

    name: consumer-eureka

eureka:

  client:

    serviceUrl:

      defaultZone: http://localhost:8888/eureka/

ConsumerEurekaApplication

@SpringBootApplication

@EnableEurekaClient

@EnableFeignClients

@EnableDiscoveryClient

public class ConsumerEurekaApplication {

    public static void main(String[] args) {

        SpringApplication.run(ConsumerEurekaApplication.class, args);

    }

}

InvokeEchoServiceController

@RestController

@RequestMapping("/ce")

public class InvokeEchoServiceController {

    @Autowired

    private HelloController helloController;

    @GetMapping("/echo")

    public String echo(@RequestParam String name) {

        return helloController.hello(name);

    }

}

HelloController

@FeignClient(value = "provider-eureka")

public interface HelloController {

    @GetMapping("/pe/echo")

    String hello(@RequestParam(value = "name") String name);

}

结果

基于Nacos的服务注册和发现和配置中心 provider-nacos

目录

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>

    <parent>

        <groupId>spring.cloud.learn</groupId>

        <artifactId>sc-learn</artifactId>

        <version>1.0-SNAPSHOT</version>

        <relativePath>../pom.xml</relativePath>

    </parent>

    <groupId>sc.learn.provider.nacos</groupId>

    <artifactId>provider-nacos</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>provider-nacos</name>

    <description>Demo project for Spring Boot</description>

    <properties>

        <java.version>1.8</java.version>

    </properties>

    <dependencies>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>

        </dependency>

    </dependencies>

</project>

bootstrap.properties

spring.application.name=provider-nacos

server.port=9090

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

spring.cloud.nacos.config.server-addr=127.0.0.1:8848

application.properties 空着,配置中心只能写在bootstrap.properties中,不然报错

ProviderNacosApplication

@SpringBootApplication

@EnableDiscoveryClient

public class ProviderNacosApplication {

    public static void main(String[] args) {

        SpringApplication.run(ProviderNacosApplication.class, args);

    }

}

EchoController

@RestController

@RequestMapping("/pn")

@RefreshScope

public class EchoController {

    @Value("${sys.user.name:null}")

    private String user;

    @GetMapping(value = "/hello")

    public String hello(@RequestParam String name) {

        return user + "Hello : " + name;

    }

    @GetMapping(value = "/echo")

    public String echo(@RequestParam String name) {

        return user + "Echo : " + name;

    }

}

结果

基于Nacos的服务注册和发现和配置中心 consumer-nacos

目录

bootstrap.properties

server.port=9000

spring.application.name=consumer-nacos

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

spring.cloud.nacos.config.server-addr=127.0.0.1:8848

ConsumerNacosApplication

@SpringBootApplication

@EnableDiscoveryClient

@EnableFeignClients

public class ConsumerNacosApplication {

    @LoadBalanced

    @Bean

    public RestTemplate restTemplate() {

        return new RestTemplate();

    }

    public static void main(String[] args) {

        SpringApplication.run(ConsumerNacosApplication.class, args);

    }

}

EchoControllerCn

@RestController

@RequestMapping("/cn")

@RefreshScope

public class EchoControllerCn {

    private final RestTemplate restTemplate;

    @Value("${sys.user.name:null}")

    private String user;

    @Autowired

    public EchoControllerCn(RestTemplate restTemplate) {

        this.restTemplate = restTemplate;

    }

    @GetMapping(value = "/hello")

    public String echo(@RequestParam String name) {

        return restTemplate.getForObject("http://nacos-provider/pn/hello?name=" + name, String.class);

    }

    @Autowired

    private HelloController2 helloController2;

    @Autowired

    private HelloController helloController1;

    @GetMapping(value = "/hello1")

    public String echo1(String name) {

        return user + helloController1.hello(name);

    }

    @GetMapping(value = "/hello2")

    public String echo2(String name) {

        return user + helloController2.hello(name);

    }

}

HelloController

@FeignClient(value = "provider-nacos")

public interface HelloController {

    @GetMapping("/pn/hello")

    String hello(@RequestParam(value = "name") String name);

}

结果

Nacos 服务器

nacos多环境配置

参考：https://www.cnblogs.com/didispace/p/10340685.html#undefined

修改配置文件

nacos.config-dev.properties:

sys.user.name=user-dev

nacos.config-test.properties:

sys.user.name=user-test

指定配置文件前缀

spring.cloud.nacos.config.prefix=nacos.config

添加启动参数

-Dspring.profiles.active=test

结果：

Nacos配置

spring cloud 学习笔记(1)的更多相关文章

  1. Spring Cloud学习笔记--Spring Boot初次搭建

    1. Spring Boot简介 初次接触Spring的时候,我感觉这是一个很难接触的框架,因为其庞杂的配置文件,我最不喜欢的就是xml文件,这种文件的可读性很不好.所以很久以来我的Spring学习都 ...

  2. Spring Cloud 学习笔记 (一)-- Eureka 服务器

    开局一张图,截取了本人学习资料中的一张图,很好地展示了Eureka的架构. Eureka服务器 管理服务的作用.细分为服务注册,服务发现. 所有的客户端在Eureka服务器上注册服务,再从Eureka ...

  3. Spring Cloud 学习笔记（二）——Netflix

    4 Spring Cloud Netflix Spring Cloud 通过自动配置和绑定到Spring环境和其他Spring编程模型惯例,为Spring Boot应用程序提供Netflix OSS集 ...

  4. Spring Cloud 学习笔记（一）——入门、特征、配置

    [TOC] 0 放在前面 0.1 参考文档 http://cloud.spring.io/spring-cloud-static/Brixton.SR7/ https://springcloud.cc ...

  5. Spring Cloud学习笔记-006

    服务容错保护:Spring Cloud Hystrix 在微服务架构中,我们将系统拆分成了很多服务单元,各单元的应用间通过服务注册与订阅的方式互相依赖.由于每个单元都在不同的进程中运行,依赖通过远程调 ...

  6. Spring Cloud学习笔记-005

    服务消费者 之前已经搭建好了微服务中的核心组件——服务注册中心(包括单节点模式和高可用模式).也有了服务提供者,接下来搭建一个服务消费者,它主要完成两个目标,发现服务以及消费服务.其中,服务发现的任务 ...

  7. Spring Cloud学习笔记-002

    搭建Spring Cloud注册中心:Eureka 服务注册:在服务治理框架中,通常都会构建一个注册中心,每个服务单元向注册中心登记自己提供的服务,将主机与端口号.版本号.通信协议等一些附加信息告诉注 ...

  8. Spring Cloud学习笔记-007

    声明式服务调用:Spring Cloud Feign Feign基于Netflix Feign实现,整合了Spring Cloud Ribbon和Spring Cloud Hystrix,除了提供这两 ...

  9. Spring Cloud学习笔记-008

    继承特性 通过上节的示例实践,当使用Spring MVC的注解来绑定服务接口时,几乎完全可以从服务提供方的Controller中依靠复制操作,构建出相应的服务客户端绑定接口.既然存在这么多复制操作,自 ...

  10. Spring Cloud学习笔记-009

    API网关服务:Spring Cloud Zuul API网关是一个更为智能的应用服务器,它的定义类似于面向对象设计模式中的Façade模式,它的存在就像是整个微服务架构系统的门面一样,所有的外部客户 ...

随机推荐

  1. 蓝牙secure simple pair 概述

    Secure Simple Pairing,简称SSP,其流程主要分为六个部分: • IO capabilities exchange • Public key exchange • Authenti ...

  2. 软工+C(9): 助教指南，持续更新...

    上一篇:提问与回复 下一篇:从命令行开始逐步培养编程能力(Java) 目录: ** 0x00 Handshake ** 0x01 点评 ** 0x02 评分 ** 0x03 知识储备 ** 0x04 ...

  3. MySQL之字符集

    看unicode编码区从1 - 126就属于传统utf8区,当然utf8mb4也兼容这个区,126行以下就是utf8mb4扩充区 1.utf8与utf8mb4(utf8 most bytes 4) M ...

  4. laravel 预加载特定的列

    /**订单列表 0 已删除 1执行中 2 已过期 * * @param Request $request * * @return \Illuminate\Contracts\View\Factory| ...

  5. .net string类型集合转int集合

    1.string集合转int集合 //string类型的集合 List<string> tempStr = new List<string>() { "21" ...

  6. EL和 JSTL? 在JSP中简化 java代码的写法！

    一.servlet部分 package com.aaa.servlet; import com.aaa.dao.IStudentDAO; import com.aaa.dao.Impl.Student ...

  7. Java遍历List5种方法的效率对比

    package com.test; import java.util.ArrayList; import java.util.Iterator; import java.util.List; /** ...

  8. OpenJudge-bailian 3454 秦腾与教学评估

    http://bailian.openjudge.cn/practice/3454?lang=en_US 题目 在秦腾进入北京大学学习的第一个学期,就不幸遇到了前所未有的教学评估.在教学评估期间,同学 ...

  9. [题解]邮递员寄信(luoguP1629)

    题目来源:luoguP1629 题目描述 有一个邮递员要送东西,邮局在结点1.他总共要送N-1样东西,其目的地分别是2-N.由于这个城市的交通比较繁忙,因此所有的道路都是单行的,共有M条道路,通过每条 ...

  10. Spring cloud zuul跨域（一）

    项目背景:我们有web和大屏,以及移动端,需要访问微服务接口. 然而大屏时自己打开的网页,在网页中通过js调用我的webapi.出现了跨域情况. 原因:出现这个问题,是由于跨域请求有2次请求. 第一次 ...