SpringCloud框架学习(1)

微服务架构

微服务架构就是将一个集中式的服务应用拆分成很多个小部分的应用。每个服务之间相互配合使用。

SpringCloud=分布式微服务架构的一站式解决方案，是多种微服务架构落地技术的集合体。俗称微服务全家桶

版本配合

https://spring.io/projects/spring-cloud
可以参照官网，因为cloud和boot的版本需要相互依赖，他们有版本的限制关系，如：

也可以查看这个json格式表.他会推荐搭配的版本

关键组件

微服务工程的搭建

1. 首先在idea中新建一个maven项目。
2. 然后删除其中的src文件夹。只将其作为一个pom包
3. 关键是pom.xml的配置

   <?xml version="1.0" encoding="UTF-8"?>
   <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xmlns="http://maven.apache.org/POM/4.0.0"
            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>
   
       <artifactId>cloud2020</artifactId>
       <groupId>top.zfxt.springcloud</groupId>
       <version>1.0-SNAPSHOT</version>
       <packaging>pom</packaging>
   
       <name>consoleApp</name>
   
       <properties>
   <!--        统一jar包版本号-->
           <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
           <kotlin.code.style>official</kotlin.code.style>
           <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
           <junit.version>4.12</junit.version>
           <log4j.version>1.2.17</log4j.version>
           <lombok.version>1.16.18</lombok.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>
   
       <repositories>
           <repository>
               <id>mavenCentral</id>
               <url>https://maven.aliyun.com/repository/public</url>
           </repository>
       </repositories>
   
   
   
       <!-- 1、只是声明依赖，并不实际引入，子项目按需声明使用的依赖 -->
       <!-- 2、子项目可以继承父项目的 version 和 scope -->
       <!-- 3、子项目若指定了 version 和 scope，以子项目为准 -->
       <!--    子模块继承后，提供作用：锁定版本+子module不用写groupID和version-->
       <dependencyManagement>
   
           <dependencies>
               <dependency>
                   <groupId>org.jetbrains.kotlin</groupId>
                   <artifactId>kotlin-test-junit5</artifactId>
                   <version>1.9.0</version>
                   <scope>test</scope>
               </dependency>
               <dependency>
                   <groupId>org.junit.jupiter</groupId>
                   <artifactId>junit-jupiter-engine</artifactId>
                   <version>5.10.0</version>
                   <scope>test</scope>
               </dependency>
               <dependency>
                   <groupId>org.jetbrains.kotlin</groupId>
                   <artifactId>kotlin-stdlib</artifactId>
                   <version>1.9.0</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 alibaba 2.1.0.RELEASE-->
               <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>
   
               <dependency>
                   <groupId>mysql</groupId>
                   <artifactId>mysql-connector-java</artifactId>
                   <version>${mysql.version}</version>
               </dependency>
               <dependency>
                   <groupId>com.alibaba</groupId>
                   <artifactId>druid</artifactId>
                   <version>${druid.version}</version>
               </dependency>
               <dependency>
                   <groupId>org.mybatis.spring.boot</groupId>
                   <artifactId>mybatis-spring-boot-starter</artifactId>
                   <version>${mybatis.spring.boot.version}</version>
               </dependency>
               <dependency>
                   <groupId>junit</groupId>
                   <artifactId>junit</artifactId>
                   <version>${junit.version}</version>
               </dependency>
               <dependency>
                   <groupId>log4j</groupId>
                   <artifactId>log4j</artifactId>
                   <version>${log4j.version}</version>
               </dependency>
               <dependency>
                   <groupId>org.projectlombok</groupId>
                   <artifactId>lombok</artifactId>
                   <version>${lombok.version}</version>
                   <optional>true</optional>
               </dependency>
           </dependencies>
       </dependencyManagement>
   
       <build>
           <sourceDirectory>src/main/kotlin</sourceDirectory>
           <testSourceDirectory>src/test/kotlin</testSourceDirectory>
           <plugins>
               <plugin>
                   <groupId>org.jetbrains.kotlin</groupId>
                   <artifactId>kotlin-maven-plugin</artifactId>
                   <version>1.9.0</version>
                   <executions>
                       <execution>
                           <id>compile</id>
                           <phase>compile</phase>
                           <goals>
                               <goal>compile</goal>
                           </goals>
                       </execution>
                       <execution>
                           <id>test-compile</id>
                           <phase>test-compile</phase>
                           <goals>
                               <goal>test-compile</goal>
                           </goals>
                       </execution>
                   </executions>
               </plugin>
               <plugin>
                   <artifactId>maven-surefire-plugin</artifactId>
                   <version>2.22.2</version>
               </plugin>
               <plugin>
                   <artifactId>maven-failsafe-plugin</artifactId>
                   <version>2.22.2</version>
               </plugin>
           </plugins>
       </build>
   </project>