尚硅谷SpringCloud2020简单学习记录（个人用）1-8集

版本选择：

Cloud：Hoxton.SR1

Boot:2.2.2.RELEASE

CLOUD ALIBABA 2.1.0.RELEASE

JAVA JAVA8

MAVEN 3.5以上

MYSQL 5.7以上

服务注册中心：

Eureka已被抛弃，但要学，一切的基础

Zookeeper

Consul

Nacos 重点

服务调用：

Ribbon

LoadBalancer

Feign 被抛弃

OpenFeign

服务降级：

Hystrix已被抛弃

Resilience4j

Sentinel

服务网关：

Zuul已被抛弃

Zuul2胎死腹中

Gateway

服务配置：

Config被抛弃

Nacos

服务总线：

Bus被抛弃了

Nacos

订单-支付模块微服务：

约定>配置>编码

总父工程

创建工程步骤：

1新建工程

2聚合总父工程名

3.Maven选版本

4.工程名字

选择maven工程，sdk选1.8，根据版本选archetypes:maven-archetype-site，接着往下建即可

5.字符编码

进入settings，editor，fileEncodings中选择Encoding都为UTF-8，Properties Files那里记得✔

6.注解生效激活

Settings，build，execution，deployment，compiler，annotation processors中选择default，然后enable annotation processing✔

7.java版本选8

Settings，build，execution，deployment，compiler，javacompiler，module中选8

8.File Type过滤（可做可不做）

总父工程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>

  <groupId>com.xs.springColud</groupId><!--自己的groupId-->

  <artifactId>cloud2020</artifactId><!--自己的artifactId-->

  <version>1.0-SNAPSHOT</version>

   

  <packaging>pom</packaging>

  <!-- packaging pom 总工程-->

  <!--统一管理jar包版本-->

  <properties>

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

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

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

    <junit.version>4.12</junit.version>

    <lombok.version>1.18.10</lombok.version>

    <log4j.version>1.2.17</log4j.version>

    <mysql.version>5.1.47</mysql.version>

    <druid.version>1.1.16</druid.version>

    <mybatis.spring.boot.version>1.3.0</mybatis.spring.boot.version>

  </properties>

  <!--子模块继承之后，提供作用：锁定版本+子module不用写groupId和version-->

  <dependencyManagement><!--定义规范，但不导入-->

  <dependencies>

  <dependency>

    <groupId>org.apache.maven.plugins</groupId>

    <artifactId>maven-project-info-reports-plugin</artifactId>

    <version>3.0.0</version>

  </dependency>

  <!--spring boot 2.2.2-->

  <dependency>

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

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

    <version>2.2.2.RELEASE</version>

    <type>pom</type>

    <scope>import</scope>

  </dependency>

  <!--spring cloud Hoxton.SR1-->

  <dependency>

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

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

    <version>Hoxton.SR1</version>

    <type>pom</type>

    <scope>import</scope>

  </dependency>

  <!--spring cloud 阿里巴巴-->

  <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>

  <!--mysql-->

  <dependency>

    <groupId>mysql</groupId>

    <artifactId>mysql-connector-java</artifactId>

    <version>${mysql.version}</version>

    <scope>runtime</scope>

  </dependency>

  <!-- druid-->

  <dependency>

    <groupId>com.alibaba</groupId>

    <artifactId>druid</artifactId>

    <version>${druid.version}</version>

  </dependency>

    <!--mybatis-->

    <dependency>

      <groupId>org.mybatis.spring.boot</groupId>

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

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

    </dependency>

    <!--junit-->

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>${junit.version}</version>

    </dependency>

    <!--log4j-->

    <dependency>

      <groupId>log4j</groupId>

      <artifactId>log4j</artifactId>

      <version>${log4j.version}</version>

    </dependency>

  </dependencies>

  </dependencyManagement>

   <!--热启动插件-->

  <build>

    <plugins>

      <plugin>

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

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

        <configuration>

          <fork>true</fork>

          <addResources>true</addResources>

        </configuration>

      </plugin>

    </plugins>

  </build>

</project>

DependencyManagement元素常用在父pom里，可以让所有子项目中的依赖不用显示列出版本号，会自动使用父pom中DependencyManagement指定的版本号

Order模块：客户端消费者80

Payment模块：微服务提供者8001

微服务模块：

1建module

选maven项目，这次不要模板，sdk选1.8，下一步继续，模块名cloud-provider-payment8001，新建module

2改pom

然后去主pom.XML中把modules块改到packaging下面

在cloud-provider-payment8001中的pom.xml中添加以下内容：

<?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>cloud2020</artifactId>

        <groupId>com.xs.springcloud</groupId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <modelVersion>4.0.0</modelVersion>



    <artifactId>cloud-provider-payment8001</artifactId>



    <dependencies>

        <!-- 服务注册中心的客户端端 eureka-client -->

        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka-server -->

<!--        <dependency>-->

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

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

<!--        </dependency>-->



<!--        &lt;!&ndash; 引入自己定义的api通用包 &ndash;&gt;-->

<!--        <dependency>-->

<!--            <groupId>com.atguigu.springcloud</groupId>-->

<!--            <artifactId>cloud-api-commons</artifactId>-->

<!--            <version>${project.version}</version>-->

<!--            <scope>compile</scope>-->

<!--        </dependency>-->



        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->

        <dependency>

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

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

        </dependency>



        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->

        <dependency>

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

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

        </dependency>



        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->

        <dependency>

            <groupId>org.mybatis.spring.boot</groupId>

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

        </dependency>



        <!-- https://mvnrepository.com/artifact/com.alibaba/druid -->

        <dependency>

            <groupId>com.alibaba</groupId>

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

            <version>1.2.8</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

        </dependency>



        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-jdbc -->

        <dependency>

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

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

        </dependency>



<!--         https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools-->

                <dependency>

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

                    <artifactId>spring-boot-devtools</artifactId>

                    <scope>runtime</scope>

                    <optional>true</optional>

                </dependency>



        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->

        <dependency>

            <groupId>org.projectlombok</groupId>

            <artifactId>lombok</artifactId>

            <optional>true</optional>

        </dependency>



        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->

        <dependency>

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

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

            <scope>test</scope>

        </dependency>



        <!--包含了sleuth+zipkin-->

<!--        <dependency>-->

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

<!--            <artifactId>spring-cloud-starter-zipkin</artifactId>-->

<!--        </dependency>-->



    </dependencies>



</project>

注释内容是之后要加的

3写yml

server:

  port: 8001



spring:

  application:

    name: cloud-payment-service



  datasource:

    type: com.alibaba.druid.pool.DruidDataSource

    driver-class-name: org.gjt.mm.mysql.Driver

    url: jdbc:mysql://localhost:3306/cloud2020?useUnicode=true&characterEncoding=utf-8&useSSL=false

    username: root

    password: root



mybatis:

  mapper-locations: classpath:mapper/*.xml

  type-aliases-package: com.xs.springcloud.entities

后续还会加入新内容

4主启动

在java文件中创建com/xs/springcloud/PaymentMain8001.java

package com.xs.springcloud;



import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;



@SpringBootApplication

public class PaymentMain8001 {

    public static void main(String[] args) {

        SpringApplication.run(PaymentMain8001.class,args);

    }

}

以上为1-8集的内容

最后

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