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一、springcloud 入门——笔记

article 2025/2/1 0:57:53

1. 学习之前要知道的

springcloud 应用的技术

2. springboot 和 springcloud 的版本选型

官网介绍：https://spring.io/projects/spring-cloud/#overview

生成新的Spring Cloud项目
最简单的入门方法是访问start.spring.io，选择您的Spring Boot版本和要使用的Spring Cloud项目。生成项目时，这会将相应的Spring Cloud BOM版本添加到您的Maven / Gradle文件中。

将Spring Cloud添加到现有的Spring Boot应用程序
如果您现有的Spring Boot应用程序想要将Spring Cloud添加到该应用程序，则第一步是确定您应该使用的Spring Cloud版本。您在应用中使用的版本将取决于您使用的Spring Boot的版本

本文将使用 springboot 2.3.0.RELEASE 和 springcloud Hoxton.SR11 构建 springcloud 项目

springboot 与 springcloud 版本选择

更详细的介绍参考： https://start.spring.io/actuator/info

{
  "git": {
    "branch": "1e4d6a48a9df249322972d9c1c6de3d3e38db0e8",
    "commit": {
      "id": "1e4d6a4",
      "time": "2021-05-21T13:52:17Z"
    }
  },
  "build": {
    "version": "0.0.1-SNAPSHOT",
    "artifact": "start-site",
    "versions": {
      "spring-boot": "2.5.0",
      "initializr": "0.11.0-SNAPSHOT"
    },
    "name": "start.spring.io website",
    "time": "2021-05-21T13:53:46.862Z",
    "group": "io.spring.start"
  },
  "bom-ranges": {
    "azure": {
      "2.2.4": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "3.2.0": "Spring Boot >=2.3.0.M1 and <2.4.0-M1",
      "3.4.0": "Spring Boot >=2.4.0.M1 and <2.5.0-M1"
    },
    "codecentric-spring-boot-admin": {
      "2.2.4": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "2.3.1": "Spring Boot >=2.3.0.M1 and <2.5.0-M1"
    },
    "solace-spring-boot": {
      "1.0.0": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "1.1.0": "Spring Boot >=2.3.0.M1 and <2.5.0-M1"
    },
    "solace-spring-cloud": {
      "1.0.0": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "1.1.1": "Spring Boot >=2.3.0.M1 and <2.4.0-M1",
      "2.0.0": "Spring Boot >=2.4.0.M1 and <2.5.0-M1"
    },
    "spring-cloud": {
      "Hoxton.SR11": "Spring Boot >=2.2.0.RELEASE and <2.3.12.BUILD-SNAPSHOT",
      "Hoxton.BUILD-SNAPSHOT": "Spring Boot >=2.3.12.BUILD-SNAPSHOT and <2.4.0.M1",
      "2020.0.0-M3": "Spring Boot >=2.4.0.M1 and <=2.4.0.M1",
      "2020.0.0-M4": "Spring Boot >=2.4.0.M2 and <=2.4.0-M3",
      "2020.0.0": "Spring Boot >=2.4.0.M4 and <=2.4.0",
      "2020.0.2": "Spring Boot >=2.4.1 and <2.5.0-M1",
      "2020.0.3-SNAPSHOT": "Spring Boot >=2.4.7-SNAPSHOT"
    },
    "spring-cloud-alibaba": {
      "2.2.1.RELEASE": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1"
    },
    "spring-cloud-gcp": {
      "2.0.0": "Spring Boot >=2.4.0-M1 and <2.5.0-M1"
    },
    "spring-cloud-services": {
      "2.2.6.RELEASE": "Spring Boot >=2.2.0.RELEASE and <2.3.0.RELEASE",
      "2.3.0.RELEASE": "Spring Boot >=2.3.0.RELEASE and <2.4.0-M1",
      "2.4.1": "Spring Boot >=2.4.0-M1 and <2.5.0-M1"
    },
    "spring-geode": {
      "1.2.12.RELEASE": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "1.3.11.RELEASE": "Spring Boot >=2.3.0.M1 and <2.4.0-M1",
      "1.4.6": "Spring Boot >=2.4.0-M1 and <2.5.0-M1",
      "1.5.0": "Spring Boot >=2.5.0-M1"
    },
    "vaadin": {
      "14.6.1": "Spring Boot >=2.1.0.RELEASE and <2.5.0-M1"
    },
    "wavefront": {
      "2.0.2": "Spring Boot >=2.1.0.RELEASE and <2.4.0-M1",
      "2.1.1": "Spring Boot >=2.4.0-M1 and <2.5.0-M1",
      "2.2.0-RC1": "Spring Boot >=2.5.0-M1"
    }
  },
  "dependency-ranges": {
    "native": {
      "0.9.0": "Spring Boot >=2.4.3 and <2.4.4",
      "0.9.1": "Spring Boot >=2.4.4 and <2.4.5",
      "0.9.2": "Spring Boot >=2.4.5 and <2.5.0-M1",
      "0.10.0-SNAPSHOT": "Spring Boot >=2.5.0-M1 and <2.6.0-M1"
    },
    "okta": {
      "1.4.0": "Spring Boot >=2.2.0.RELEASE and <2.4.0-M1",
      "1.5.1": "Spring Boot >=2.4.0-M1 and <2.4.1",
      "2.0.1": "Spring Boot >=2.4.1 and <2.5.0-M1"
    },
    "mybatis": {
      "2.1.4": "Spring Boot >=2.1.0.RELEASE and <2.5.0-M1"
    },
    "camel": {
      "3.3.0": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "3.5.0": "Spring Boot >=2.3.0.M1 and <2.4.0-M1",
      "3.10.0": "Spring Boot >=2.4.0.M1 and <2.5.0-M1"
    },
    "open-service-broker": {
      "3.1.1.RELEASE": "Spring Boot >=2.2.0.RELEASE and <2.3.0.M1",
      "3.2.0": "Spring Boot >=2.3.0.M1 and <2.4.0-M1",
      "3.3.0": "Spring Boot >=2.4.0-M1 and <2.5.0-M1"
    }
  }
}

3. 步骤

（1）建 module
（2）改 pom
（3）写 yml
（4）主启动类
（5）业务代码

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.test.wl</groupId>
    <artifactId>springcloud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
        <module>cloud-provider-payment8001</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.0.RELEASE</version>
    </parent>

    <!-- 统一jar包管理 -->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.traget>1.8</maven.compiler.traget>
        <junit.version>4.12</junit.version>
        <log4j.version>1.2.17</log4j.version>
        <lombok.version>1.18.12</lombok.version>
        <mysql.version>8.0.23</mysql.version>
        <druid.verison>1.1.22</druid.verison>
        <mybatis.spring.boot.version>2.1.4</mybatis.spring.boot.version>
        <spring.boot.starter.web>2.3.0.RELEASE</spring.boot.starter.web>
        <spring.boot.starter.jdbc>2.3.0.RELEASE</spring.boot.starter.jdbc>
        <spring.boot.starter.actuator>2.3.0.RELEASE</spring.boot.starter.actuator>
        <spring.boot.starter.test>2.3.0.RELEASE</spring.boot.starter.test>
        <spring.boot.devtools>2.3.0.RELEASE</spring.boot.devtools>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.3.0.RELEASE</version>
            </dependency>

            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR11</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.1.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
                <version>${spring.boot.starter.jdbc}</version>
            </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.verison}</version>
            </dependency>

            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.spring.boot.version}</version>
            </dependency>

            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
                <version>${spring.boot.starter.web}</version>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
                <version>${spring.boot.starter.actuator}</version>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <version>${spring.boot.starter.test}</version>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <version>${spring.boot.devtools}</version>
                <scope>runtime</scope>
                <optional>true</optional>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.0.RELEASE</version>
                <configuration>
                    <fork>true</fork>
                    <addResources>true</addResources>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

跟尚硅谷大佬（阳哥）一起学 springcloud
视频链接：https://www.bilibili.com/video/BV18E411x7eT?from=search&seid=11397380345672811627
我的项目地址：https://gitee.com/wl_projects/springcloud.git

最后编辑于：2024-12-10 21:05:46