分布式学习平台之搭建springcloud分布式工程（1）

素颜马尾好姑娘i 2022-03-30 16:58 128阅读 0赞

工具：IDEA

maven:3.5

jdk:1.8

整个项目的目录结构：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70][]

1.建立maven工程：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 2][]

2.在pom.xml引入依赖包：

springcloud和springboot的依赖包存在版本对应关系，所以选择springcloud版本时请查看springcloud官网。

注：把项目作为父工程，把packing改为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>com.cxh.study.platform</groupId>
      <artifactId>study_platform</artifactId>
      <version>1.0-SNAPSHOT</version>
      <packaging>pom</packaging>
    
      <name>study_platform</name>
      
      <url>http://www.example.com</url>
    
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <junit.version>4.12</junit.version>
        <log4j.version>1.2.17</log4j.version>
        <lombok.version>1.16.18</lombok.version>
      </properties>
    
      <dependencyManagement>
        <dependencies>
          <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Camden.SR6</version>
            <type>pom</type>
            <scope>import</scope>
          </dependency>
          <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>1.5.1.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
          </dependency>
          <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.0.4</version>
          </dependency>
          <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.31</version>
          </dependency>
          <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.0</version>
          </dependency>
          <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>1.2.3</version>
          </dependency>
          <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
          </dependency>
          <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
          </dependency>
        </dependencies>
      </dependencyManagement>
    
      <build>
        <pluginManagement>
          <plugins>
            
            <plugin>
              <artifactId>maven-clean-plugin</artifactId>
              <version>3.1.0</version>
            </plugin>
            
            <plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>3.0.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-compiler-plugin</artifactId>
              <version>3.8.0</version>
            </plugin>
            <plugin>
              <artifactId>maven-surefire-plugin</artifactId>
              <version>2.22.1</version>
            </plugin>
            <plugin>
              <artifactId>maven-jar-plugin</artifactId>
              <version>3.0.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-install-plugin</artifactId>
              <version>2.5.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-deploy-plugin</artifactId>
              <version>2.8.2</version>
            </plugin>
            
            <plugin>
              <artifactId>maven-site-plugin</artifactId>
              <version>3.7.1</version>
            </plugin>
            <plugin>
              <artifactId>maven-project-info-reports-plugin</artifactId>
              <version>3.0.0</version>
            </plugin>
          </plugins>
        </pluginManagement>
      </build>
    </project>

2.建立服务提供者工程

右键项目，选择module

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 4][]

在项目pom.xml中引入需要的依赖：

在resources下写配置文件application.yml:

# 服务端口号
    server:
      port: 8010
    spring:
      #服务名称
      application:
        name: provider8010
      #数据源配置
      datasource:
        name: springboot
        type: com.alibaba.druid.pool.DruidDataSource
        #druid相关配置
        druid:
          #mysql驱动
          driver-class-name: com.mysql.jdbc.Driver
          #基本属性
          url: jdbc:mysql://127.0.0.1:3306/studyplatform?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
          username: root
          password: 123456
          #配置初始化大小/最小/最大
          initial-size: 1
          min-idle: 1
          max-active: 20
          #获取连接等待超时时间
          max-wait: 60000
          #间隔多久进行一次检测，检测需要关闭的空闲连接
          time-between-eviction-runs-millis: 60000
    
    
    
    
     #mybatis配置
    mybatis:
      mapper-locations:
        - classpath:mapper/*.xml
      type-aliases-package: com.cxh.study.platform.entity

编写控制层：

package com.cxh.study.platform.controller;
    
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * Created by ASUS on 2019/1/13
     *
     * @Authod Grey Wolf
     */
    @RestController
    @RequestMapping("/user")
    public class UserController {
    
        @GetMapping("/index")
        public String index(){
            return "provider8010-->index";
        }
    }

编写启动类：

package com.cxh.study.platform;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /**
     * Created by ASUS on 2019/1/13
     *
     * @Authod Grey Wolf
     */
    
    
    @SpringBootApplication
    public class App {
    
        public static  void main(String[] args){
            SpringApplication.run(App.class,args);
        }
    }

此时项目的整体目录：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 5][]

启动项目，浏览器访问[http://localhost:8010/user/index][http_localhost_8010_user_index]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 6][]

说明：提供者模块集成成功。

3.建立用户消费者工程

流程同用户提供者一样：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 7][]

在项目pom.xml中引入需要的依赖：

<properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
            <thymeleaf.version>2.0.5.RELEASE</thymeleaf.version>
        </properties>
    
        
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>springloaded</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
                <version>${thymeleaf.version}</version>
            </dependency>
    
        </dependencies>

在resources中编写配置文件application.yml:

server:
      port: 9010
    
    spring:
      application:
        name: consumer9010
      #视图
      thymeleaf:
        prefix: classpath:/thymeleafs/
        check-template-location: true
        suffix: .html
        encoding: UTF-8
        cache: false

编写RestTemplate bean用于远程调用提供者服务的数据：

package com.cxh.study.platform.config;
    
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.client.RestTemplate;
    
    /**
     * Created by ASUS on 2019/1/13
     *
     * @Authod Grey Wolf
     */
    @Configuration
    public class RestTmplateConfig {
    
        /**
         * RestTemplate提供了多种便捷访问远程Http服务的方法
         * 是一种简单便捷的访问restful服务模板类，是Spring提供的用于访问Rest服务的客户端模板工具集
         * @return
         */
        @Bean
        public RestTemplate getRestTemplate() {
            return new RestTemplate();
        }
    }

编写控制层：调用服务提供者的服务（端口为8010）

package com.cxh.study.platform.controller;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    import org.springframework.web.client.RestTemplate;
    
    /**
     * Created by ASUS on 2019/1/8
     *
     * @Authod Grey Wolf
     */
    @Controller
    public class LoginController {
    
        private static final String REST_USER_URL_ = "http://localhost:8010";
    
        @Autowired
        private RestTemplate restTemplate;
    
        @GetMapping("/login")
        public String login(){
            System.out.println("login---");
            return "/login";
        }
    
        @GetMapping("/index")
        @ResponseBody
        public String index(){
            System.out.println("index---");
            return restTemplate.getForObject(REST_USER_URL_+"/user/index", String.class);
        }
    }

编写启动类：

package com.cxh.study.platform;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /**
     * Created by ASUS on 2019/1/13
     *
     * @Authod Grey Wolf
     */
    @SpringBootApplication
    public class App {
    
        public static  void main(String[]args){
            SpringApplication.run(App.class,args);
        }
    }

此时项目的整体目录：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 8][]

浏览器打开[http://localhost:8010/user/index][http_localhost_8010_user_index]查看服务提供者的数据

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 9][]

浏览器打开：[http://localhost:9010/index][http_localhost_9010_index]消费者消费服务提供者的数据：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 10][]

好了，一个简单的使用springcloud，集成服务提供者，服务消费者的流程就走完了。

### 我的座右铭：不会，我可以学；落后，我可以追赶；跌倒，我可以站起来；我一定行。 ###

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70]: /images/20220330/90801324f22745768c83ba84ba26f4cd.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20190106231316919.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg==,size_16,color_FFFFFF,t_70
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 3]: /images/20220330/32e590c1d9594ab6aae5e0339382ad38.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 4]: /images/20220330/ecaf973595e6431ab704da322129db34.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 5]: /images/20220330/4d6e791d7e06482290a55cca8f767b6a.png
[http_localhost_8010_user_index]: http://localhost:8010/user/index
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 6]: /images/20220330/83bdaa882f7c43668b0ef242e3d8ee5f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 7]: /images/20220330/f56b5cf4f67c47d3b7aff214ffcbd05b.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 8]: /images/20220330/7ff9ced06e454e7a9e2dd8b47d546e33.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 9]: /images/20220330/bc8085a88b324798ae40ebc343d60891.png
[http_localhost_9010_index]: http://localhost:9010/index
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70 10]: /images/20220330/47cadc79169f474f870c3cd534ef270e.png