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微服务 docker，利用SpringCloud搭建一个最简单的微服务框架

 2023-09-26 阅读 29 评论 0

摘要：利用SpringCloud搭建一个最简单的微服务框架 https://blog.csdn.net/caicongyang/article/details/52974406 1.微服务 微服务主要包含服务注册，服务发现，服务路由，服务配置，服务熔断，服务降级等一系列的服务，而Spring Cloud为我们提

利用SpringCloud搭建一个最简单的微服务框架

https://blog.csdn.net/caicongyang/article/details/52974406

1.微服务

微服务主要包含服务注册，服务发现，服务路由，服务配置，服务熔断，服务降级等一系列的服务，而Spring Cloud为我们提供了个一整套的服务；

微服务 docker、 

本例子为你提供了最简单的一个服务发现例子，包含服务注册发现spingCloudEurekaServer、服务配置中心spingCloudConfServer、以及一个app应用springCloudApp

2.服务注册与发现

spingCloudEurekaServer

pom.xml

Springboot框架。 

 

  1.  
    <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">
     
  2.  
    <modelVersion>4.0.0</modelVersion>
     
  3.  
    <groupId>com.caicongyang</groupId>
     
  4.  
    0基础搭建网站？<artifactId>spingCloudEurekaServer</artifactId>
     
  5.  
    <version>0.0.1-SNAPSHOT</version>
     
  6.  
    <parent>
     
  7.  
    <groupId>org.springframework.cloud</groupId>
     
  8.  
    搭建家庭云，<artifactId>spring-cloud-starter-parent</artifactId>
     
  9.  
    <version>Angel.SR6</version>
     
  10.  
    </parent>
     
  11.  
    <dependencies> 
     
  12.  
    有源码如何搭建、<dependency>
     
  13.  
    <groupId>org.springframework.cloud</groupId>
     
  14.  
    <artifactId>spring-cloud-starter-eureka-server</artifactId>
     
  15.  
    </dependency>
     
  16.  
    旧pc搭建、</dependencies>
     
  17.  
    <build>
     
  18.  
    <plugins>
     
  19.  
    <plugin>
     
  20.  
    搭建、<groupId>org.springframework.boot</groupId>
     
  21.  
    <artifactId>spring-boot-maven-plugin</artifactId>
     
  22.  
    </plugin>
     
  23.  
    </plugins>
     
  24.  
    个人服务器搭建教程，</build>
     
  25.  
    </project>
     


Application.java
 

 
 

 
 

 

  1.  
    package com.caicongyang.eureka;
     
  2.  
  3.  
    import org.springframework.boot.SpringApplication;
     
  4.  
    import org.springframework.boot.autoconfigure.SpringBootApplication;
     
  5.  
    import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
     
  6.  
  7.  
    /**
     
  8.  
    * Spring could EurekaServer程序主入口
     
  9.  
    * 
     
  10.  
    * @author Administrator
     
  11.  
    *
     
  12.  
    */
     
  13.  
    @SpringBootApplication
     
  14.  
    @EnableEurekaServer
     
  15.  
    public class Application {
     
  16.  
    public static void main(String[] args) {
     
  17.  
    SpringApplication.run(Application.class, args);
     
  18.  
    }
     
  19.  
    }
     


 
 

application.yml  （可用properties替代）
 

 
 

server: port: 9999
eureka:instance: hostname: 127.0.0.1client: registerWithEureka: falsefetchRegistry: falseserviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

 

 
 

 
 

3.服务配置（全局配置中心）
 

pom.xml
 

 
 

 

  1.  
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     
  2.  
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     
  3.  
    <modelVersion>4.0.0</modelVersion>
     
  4.  
    <groupId>com.caicongyang</groupId>
     
  5.  
    <artifactId>spingCloudConfServer</artifactId>
     
  6.  
    <version>0.0.1-SNAPSHOT</version>
     
  7.  
  8.  
    <parent>
     
  9.  
    <groupId>org.springframework.cloud</groupId>
     
  10.  
    <artifactId>spring-cloud-starter-parent</artifactId>
     
  11.  
    <version>Angel.SR6</version>
     
  12.  
    </parent>
     
  13.  
    <dependencies>
     
  14.  
    <dependency>
     
  15.  
    <groupId>org.springframework.cloud</groupId>
     
  16.  
    <artifactId>spring-cloud-config-server</artifactId>
     
  17.  
    </dependency>
     
  18.  
    <!-- sping cloud 注册服务 -->
     
  19.  
    <dependency>
     
  20.  
    <groupId>org.springframework.cloud</groupId>
     
  21.  
    <artifactId>spring-cloud-starter-eureka</artifactId>
     
  22.  
    </dependency>
     
  23.  
    <dependency>
     
  24.  
    <groupId>org.springframework.boot</groupId>
     
  25.  
    <artifactId>spring-boot-starter-test</artifactId>
     
  26.  
    <scope>test</scope>
     
  27.  
    </dependency>
     
  28.  
    </dependencies>
     
  29.  
  30.  
    <build>
     
  31.  
    <plugins>
     
  32.  
    <plugin>
     
  33.  
    <groupId>org.springframework.boot</groupId>
     
  34.  
    <artifactId>spring-boot-maven-plugin</artifactId>
     
  35.  
    </plugin>
     
  36.  
    </plugins>
     
  37.  
    <defaultGoal>compile</defaultGoal>
     
  38.  
    </build>
     
  39.  
    </project>
     


application.java
 

 
 

 
 

 

  1.  
    package com.caiconyang.conf;
     
  2.  
  3.  
    import org.springframework.boot.SpringApplication;
     
  4.  
    import org.springframework.boot.autoconfigure.SpringBootApplication;
     
  5.  
    import org.springframework.cloud.config.server.EnableConfigServer;
     
  6.  
  7.  
    /**
     
  8.  
    * Spring could conf程序主入口
     
  9.  
    * @author Administrator
     
  10.  
    *
     
  11.  
    */
     
  12.  
    @SpringBootApplication
     
  13.  
    @EnableConfigServer
     
  14.  
    public class Application {
     
  15.  
    public static void main(String[] args) { 
     
  16.  
    SpringApplication.run(Application.class,args); 
     
  17.  
    } 
     
  18.  
    }
     



 application.properties
 

 
 

 
 

server.port=8888
## App配置文件所在git地址
spring.cloud.config.server.git.uri=https://git.oschina.net/caicongyang/springCloudConfigRepo.git
spring.cloud.config.server.git.searchPaths=repo
spring.application.name=spingCloudConfServer
 

 
 

4.App
 

pom.xml
 

 
 

 

  1.  
    <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">
     
  2.  
    <modelVersion>4.0.0</modelVersion>
     
  3.  
    <groupId>com.caicongyang</groupId>
     
  4.  
    <artifactId>springCloudApp</artifactId>
     
  5.  
    <version>0.0.1-SNAPSHOT</version>
     
  6.  
  7.  
    <parent>
     
  8.  
    <groupId>org.springframework.cloud</groupId>
     
  9.  
    <artifactId>spring-cloud-starter-parent</artifactId>
     
  10.  
    <version>Angel.SR6</version>
     
  11.  
    </parent>
     
  12.  
    <properties>
     
  13.  
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     
  14.  
    <java.version>1.7</java.version>
     
  15.  
    <java.encoding>UTF-8</java.encoding>
     
  16.  
    <springfox.swagger.version>2.2.2</springfox.swagger.version>
     
  17.  
    </properties>
     
  18.  
    <dependencies>
     
  19.  
    <dependency>
     
  20.  
    <groupId>org.springframework.boot</groupId>
     
  21.  
    <artifactId>spring-boot-starter-web</artifactId>
     
  22.  
    </dependency>
     
  23.  
    <!-- sping cloud 监控 http://localhost:8080/health -->
     
  24.  
    <dependency>
     
  25.  
    <groupId>org.springframework.boot</groupId>
     
  26.  
    <artifactId>spring-boot-starter-actuator</artifactId>
     
  27.  
    </dependency>
     
  28.  
    <dependency>
     
  29.  
    <groupId>org.springframework.cloud</groupId>
     
  30.  
    <artifactId>spring-cloud-starter-config</artifactId>
     
  31.  
    </dependency>
     
  32.  
    <!-- sping cloud 注册服务 -->
     
  33.  
    <dependency>
     
  34.  
    <groupId>org.springframework.cloud</groupId>
     
  35.  
    <artifactId>spring-cloud-starter-eureka</artifactId>
     
  36.  
    </dependency>
     
  37.  
    <!-- sping cloud 路由 -->
     
  38.  
    <dependency>
     
  39.  
    <groupId>org.springframework.cloud</groupId>
     
  40.  
    <artifactId>spring-cloud-starter-hystrix</artifactId>
     
  41.  
    </dependency>
     
  42.  
  43.  
    <dependency>
     
  44.  
    <groupId>org.springframework.boot</groupId>
     
  45.  
    <artifactId>spring-boot-starter-test</artifactId>
     
  46.  
    <scope>test</scope>
     
  47.  
    </dependency>
     
  48.  
    <dependency>
     
  49.  
    <groupId>io.springfox</groupId>
     
  50.  
    <artifactId>springfox-swagger2</artifactId>
     
  51.  
    <version>${springfox.swagger.version}</version>
     
  52.  
    </dependency>
     
  53.  
    <dependency>
     
  54.  
    <groupId>io.springfox</groupId>
     
  55.  
    <artifactId>springfox-swagger-ui</artifactId>
     
  56.  
    <version>${springfox.swagger.version}</version>
     
  57.  
    </dependency>
     
  58.  
    </dependencies>
     
  59.  
  60.  
  61.  
    <build>
     
  62.  
    <finalName>spingcould</finalName>
     
  63.  
    <plugins>
     
  64.  
    <plugin>
     
  65.  
    <groupId>org.apache.maven.plugins</groupId>
     
  66.  
    <artifactId>maven-compiler-plugin</artifactId>
     
  67.  
    <configuration>
     
  68.  
    <source>${java.version}</source>
     
  69.  
    <target>${java.version}</target>
     
  70.  
    <encoding>${java.encoding}</encoding>
     
  71.  
    <showWarnings>true</showWarnings>
     
  72.  
    </configuration>
     
  73.  
    </plugin>
     
  74.  
    </plugins>
     
  75.  
    </build>
     
  76.  
  77.  
  78.  
    </project>
     



 Application.java
 

 
 

 
 

 

  1.  
    package com.caicongyang.springCloudApp.main;
     
  2.  
  3.  
    import org.springframework.boot.SpringApplication;
     
  4.  
    import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
     
  5.  
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
     
  6.  
    import org.springframework.context.annotation.ComponentScan;
     
  7.  
    import org.springframework.context.annotation.Configuration;
     
  8.  
  9.  
    /**
     
  10.  
    * Spring could web程序主入口
     
  11.  
    * @author Administrator
     
  12.  
    *
     
  13.  
    */
     
  14.  
    @Configuration//配置控制 
     
  15.  
    @EnableAutoConfiguration//启用自动配置 
     
  16.  
    @ComponentScan(value={"com.caicongyang.springCloudApp"})//组件扫描 
     
  17.  
    @EnableDiscoveryClient
     
  18.  
    public class Application {
     
  19.  
    public static void main(String[] args) { 
     
  20.  
    //第一个简单的应用， 
     
  21.  
    SpringApplication.run(Application.class,args); 
     
  22.  
    } 
     
  23.  
    }
     


SwaggerConfig.java
 

 
 

 
 

 

  1.  
    package com.caicongyang.springCloudApp.conf;
     
  2.  
  3.  
    import org.springframework.beans.factory.annotation.Value;
     
  4.  
    import org.springframework.context.annotation.Bean;
     
  5.  
    import org.springframework.context.annotation.Configuration;
     
  6.  
  7.  
    import springfox.documentation.service.ApiInfo;
     
  8.  
    import springfox.documentation.spi.DocumentationType;
     
  9.  
    import springfox.documentation.spring.web.plugins.Docket;
     
  10.  
    import springfox.documentation.swagger2.annotations.EnableSwagger2;
     
  11.  
  12.  
    /**
     
  13.  
    *
     
  14.  
    * @author caicongyang1
     
  15.  
    * @version id: SwaggerConfig, v 0.1 16/4/22 下午4:12 caicongyang1 Exp $$
     
  16.  
    */
     
  17.  
    @Configuration
     
  18.  
    @EnableSwagger2
     
  19.  
    public class SwaggerConfig {
     
  20.  
  21.  
    @Value("${swagger.ui.enable}") //该配置项在配置中心管理
     
  22.  
    private boolean environmentSpecificBooleanFlag;
     
  23.  
  24.  
    @Bean
     
  25.  
    public Docket docketFactory() {
     
  26.  
    return new Docket(DocumentationType.SWAGGER_2).apiInfo(
     
  27.  
    new ApiInfo("接口文档", "SpingCloud web接口列表", "1.0", "", "", "", "")).enable(environmentSpecificBooleanFlag);
     
  28.  
    }
     
  29.  
    }
     


application.properties
 

 
 

 
 

server.port=8080
spring.cloud.config.uri=http://127.0.0.1:8888
spring.cloud.config.name=springCloudApp
spring.cloud.config.profile=${config.profile:dev}
#service discovery url
eureka.client.serviceUrl.defaultZone=http://localhost:9999/eureka/
#service name
spring.application.name=springCloudApp
 


 5.测试与验证
 

顺序启动服务注册发现spingCloudEurekaServer、服务配置中心spingCloudConfServer、以及一个app应用springCloudApp
 

测试与验证
 

1.访问http://localhost:9999/eureka/  app是否已经注册上来
 

2.访问 http://localhost:8080/swagger-ui.html 是否正常访问，如果正常访问说明争取读取到config配置中心的swagger.ui.enable配置项
 

 
 

6.源码：
 

 
 

以上所有源码：
 

 
 

https://git.oschina.net/caicongyang/springcloud.git
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原文链接：https://hbdhgg.com/3/97811.html
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