[开发工具] idea+springboot+nacos+dubbo 多模块项目搭建超详细

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[开发工具]idea+springboot+nacos+dubbo 多模块项目搭建超详细

有一个很简单的不用配置pom和dependecy的方法，但是每个模块不是工程，https://blog.csdn.net/qq_43762185/article/details/120811212?spm=1001.2014.3001.5501
我也是参考了很多博主，其中主要是这个博主的
https://cloud.tencent.com/developer/article/1837815
我会描述的更详细一点

正文

nacos下载及配置

1.1进入官网https://github.com/alibaba/nacos/releases
将页面滑倒最下面，可以看到，一般win系统下载zip，然后解压

1.2.
如果你是在跟我一样练手，cmd cd到bin目录，输入以下语句单机模式启动
startup.cmd -m standalone
如果你是集群启动，就可以直接在bin目录下双击stratup.cmd
1.3启动成功后，输入红框中的地址，默认账号和密码是nacos
在这里插入图片描述
2.springboot项目搭建(重点)
2.1创建一个一个maven项目

创建好以后，删除src目录，配置pom文件，下面是我的pom文件
这里有几个注意点：
你前面的groupid是什么，你这里就要是什么，我的就是com.sxh
你粘贴上去可能会报错，因为还没有创建modules，之后创建了就好了，这是父工程。

<?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.sxh</groupId>
  <artifactId>dubbo-nacos</artifactId>
  <version>1.0-SNAPSHOT</version>
  <modules>
    <module>common-api</module>
    <module>dubbo-provide</module>
    <module>service-consumer</module>
  </modules>
  <packaging>pom</packaging>

  <name>dubbo-nacos Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

<!--  <properties>-->
<!--    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>-->
<!--    <maven.compiler.source>1.7</maven.compiler.source>-->
<!--    <maven.compiler.target>1.7</maven.compiler.target>-->
<!--  </properties>-->

  <!--加入-->
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>8</maven.compiler.source>
    <maven.compiler.target>8</maven.compiler.target>
    <netty.version>4.1.56.Final</netty.version>
    <spring-boot.version>2.3.5.RELEASE</spring-boot.version>
    <dubbo.version>2.7.8</dubbo.version>
    <nacos-client.version>1.4.0</nacos-client.version>
  </properties>
  <!--加入-->
  <!--加入-->
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>${spring-boot.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-dependencies-bom</artifactId>
        <version>${dubbo.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>${dubbo.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-registry-nacos</artifactId>
        <version>${dubbo.version}</version>
      </dependency>
      <dependency>
        <groupId>com.alibaba.nacos</groupId>
        <artifactId>nacos-client</artifactId>
        <version>${nacos-client.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo</artifactId>
        <version>${dubbo.version}</version>
        <exclusions>
          <exclusion>
            <groupId>org.springframework</groupId>
            <artifactId>spring</artifactId>
          </exclusion>
          <exclusion>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
          </exclusion>
          <exclusion>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
          </exclusion>
        </exclusions>
      </dependency>
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>
  <!--加入-->
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <finalName>dubbo-nacos</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <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-war-plugin</artifactId>
          <version>3.2.2</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>
      </plugins>
    </pluginManagement>
  </build>
</project>

2.2在父工程下面创建三个子工程，分别为commn-api（maven工程），dubbo-service（springboot工程），service-consumer（springboot工程），这是整体的目录
在这里插入图片描述
创建好了之后，对于common-api
pom.xml
主要加入parent模块和一些依赖

<?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>

  <parent>
    <groupId>com.sxh</groupId>
    <artifactId>dubbo-nacos</artifactId>
    <version>1.0-SNAPSHOT</version>
  </parent>

  <groupId>com.sxh</groupId>
  <artifactId>common-api</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>common-api Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <finalName>common-api</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <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-war-plugin</artifactId>
          <version>3.2.2</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>
      </plugins>
    </pluginManagement>
  </build>
</project>

创建SayService:

package com.sxh.service;

public interface SayService {
    String sayHelloByName(String name);
}

dubbo-provide：
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">
    <parent>
        <groupId>com.sxh</groupId>
        <artifactId>dubbo-nacos</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.sxh</groupId>
    <artifactId>dubbo-provide</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>dubbo-provide</name>
    <description>dubbo-provide</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>
    </properties>


    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
        </dependency>
        <dependency>
            <groupId>com.sxh</groupId>
            <artifactId>common-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-test</artifactId>
            <version>2.5.4</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>


<!--    <dependencies>-->
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter</artifactId>-->
<!--        </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>
        </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.sxh.dubboprovide.DubboProvideApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

SayServiceImpl.java:
出现红线不要慌，看能不能import class,要不然就加入依赖，刷新一下maven

package com.sxh.dubboprovide.impl;

import com.sxh.service.SayService;
import org.apache.dubbo.config.annotation.DubboService;

@DubboService
public class SayServiceImpl implements SayService {
    @Override
    public String sayHelloByName(String name) {
        return name+",hello!";
    }
}

启动类上加上@EnableDubbo注解
application.yml:`
在这里插入图片描述

server:
  port: 14511
spring:
  application:
    name: provider-service
  main:
    allow-bean-definition-overriding: true
dubbo:
  application:
    name: provider-service
  registry:
    address: nacos://10.199.15.74:8848
    username: nacos
    password: nacos
  scan:
    base-packages: com.sxh.dubboprovide.impl
  protocol:
    name: dubbo
    port: 15511

dubbo-consumer
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">

    <parent>
        <groupId>com.sxh</groupId>
        <artifactId>dubbo-nacos</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.sxh</groupId>
    <artifactId>service-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>service-consumer</name>
    <description>service-consumer</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>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
        </dependency>
        <dependency>
            <groupId>com.sxh</groupId>
            <artifactId>common-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>RELEASE</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

<!--    <dependencies>-->
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter</artifactId>-->
<!--        </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>
        </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.sxh.serviceconsumer.ServiceConsumerApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

application.yml:
跟上面一样，改成自己的ip

server:
  port: 14512
spring:
  application:
    name: consumer-service
  main:
    allow-bean-definition-overriding: true
dubbo:
  application:
    name: consumer-service
  registry:
    address: nacos://10.199.15.74:8848
    username: nacos
    password: nacos
  protocol:
    name: dubbo
    port: 15511

SayController.java:

package com.sxh.serviceconsumer.controller;
import com.sxh.service.SayService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/demo/say")
public class SayController {

    @DubboReference
    private SayService sayService;

    @GetMapping("/sayHello")
    public ResponseEntity<String> sayHello(@RequestParam("name") String name) {
        return ResponseEntity.ok(sayService.sayHelloByName(name));
    }
}