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springcloud

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springcloud

跟随视频练习的代码存放在 GitHub仓库： https://github.com/wuwei1636/java

SpringCloud与SpringBoot的版本对应

SpringCloud版本 SpringBoot版本
2021.0.1-SNAPSHOT Spring Boot >=2.6.4-SNAPSHOT and <2.7.0-M1
2021.0.0 Spring Boot >=2.6.1 and <2.6.4-SNAPSHOT
2021.0.0-RC1 Spring Boot >=2.6.0-RC1 and <2.6.1
2021.0.0-M3 Spring Boot >=2.6.0-M3 and <2.6.0-RC1
2021.0.0-M1 Spring Boot >=2.6.0-M1 and <2.6.0-M3
2020.0.5 Spring Boot >=2.4.0.M1 and <2.6.0-M1
Hoxton.SR12 Spring Boot >=2.2.0.RELEASE and <2.4.0.M1
Hoxton.BUILD-SNAPSHOT Spring Boot >=2.2.0.BUILD-SNAPSHOT
Hoxton.M2 Spring Boot >=2.2.0.M4 and <=2.2.0.M5
Greenwich.BUILD-SNAPSHO Spring Boot >=2.1.9.BUILD-SNAPSHOT and <2.2.0.M4
Greenwich.SR2 Spring Boot >=2.1.0.RELEASE and <2.1.9.BUILD-SNAPSHOT
Greenwich.M1 Spring Boot >=2.1.0.M3 and <2.1.0.RELEASE
Finchley.BUILD-SNAPSHOT Spring Boot >=2.0.999.BUILD-SNAPSHOT and <2.1.0.M3
Finchley.SR4 Spring Boot >=2.0.3.RELEASE and <2.0.999.BUILD-SNAPSHOT
Finchley.RC2 Spring Boot >=2.0.2.RELEASE and <2.0.3.RELEASE
Finchley.RC1 Spring Boot >=2.0.1.RELEASE and <2.0.2.RELEASE
Finchley.M9 Spring Boot >=2.0.0.RELEASE and <=2.0.0.RELEASE
Finchley.M7 Spring Boot >=2.0.0.RC2 and <=2.0.0.RC2
Finchley.M6 Spring Boot >=2.0.0.RC1 and <=2.0.0.RC1
Finchley.M5 Spring Boot >=2.0.0.M7 and <=2.0.0.M7
Finchley.M4 Spring Boot >=2.0.0.M6 and <=2.0.0.M6
Finchley.M3 Spring Boot >=2.0.0.M5 and <=2.0.0.M5
Finchley.M2 Spring Boot >=2.0.0.M3 and <2.0.0.M5
Edgware.SR5 1.5.20.RELEASE
Edgware.SR5 1.5.16.RELEASE
Edgware.RELEASE 1.5.9.RELEASE
Dalston.RC1 1.5.2.RELEASE

PS：目前我使用的版本是：SpringCloud Hoxton.SR12和 Springboot 2.3.7.RELEASE

详细的版本对应 ：https://start.spring.io/actuator/info

创建springcloud

  1. 建立一个maven的父项目
  2. 建立模块（两种方式）
    1. 创建一个maven的模块，导入springboot所需的各种依赖和注解
    2. 创建一个springboot的模块，在父项目的pom.xml中自己模块信息
  3. 修改配置文件
  4. 添加注解，运行nacos-server，运行项目

因为建立模块的方式卡了一上午，所以记录一下

maven的pom.xml

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<?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>org.example</groupId>
    <artifactId>SecTest</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>pom</packaging>

    <modules>
        <module>demo</module>
    </modules>

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

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR12</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.7.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.3.7.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

子模块的pom.xml

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<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>demo</description>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.7.RELEASE</spring-boot.version>
        <spring-cloud-alibaba.version>2.2.2.RELEASE</spring-cloud-alibaba.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.example.demo.DemoApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

配置类

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server.port=8081
spring.application.name=nacos-provider
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
management.endpoints.web.exposure.include=*

启动类

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@SpringBootApplication
@EnableDiscoveryClient  // 添加注解即可
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

}

image-20220710111559066