记一次mvn clean install 报package com.rockysaas.shopguide.common.config.threadpool does not exist

Posted 2021-03-06 zjhgx

最近在导购项目中增加了两个模块，common,job. 原先的admin，web还有job引用了common包。其中common包的pom.xml如下

<?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>
    <parent>
        <groupId>com.rockysaas.shopguide</groupId>
        <artifactId>shopguide-parent</artifactId>
        <version>1.0.0</version>
    </parent>
    <groupId>com.rockysaas.shopguide</groupId>
    <artifactId>common</artifactId>
    <version>1.0.0</version>
    <name>common</name>
    <packaging>jar</packaging>

    <description>Common project for ShopGuide</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.8</version>
        </dependency>

        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>4.5.1</version>
        </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>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

admin的pom.xml引用到了common包

  <dependencies>
 。。。
        <dependency>
            <groupId>com.rockysaas.shopguide</groupId>
            <artifactId>common</artifactId>
        </dependency>
。。。
</dependencies>

admin项目引用了common里的变量

import com.rockysaas.shopguide.common.config.threadpool.ThreadPoolProperties;

@Component
@ConfigurationProperties(prefix = "task.threadpool.executor")
public class TaskThreadPoolProperties  extends ThreadPoolProperties {
}

但是整个项目mvn clean install -Dmaven.test.skip=true 时却报了

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project admin: Compilation failure: Compilation failure:

在idea中启动项目没问题也没报编译错误，而且我在job项目里引入common的变量后也有这个问题。经过几个小时的实验和测试，发现问题是在common的pom.xml里加上了

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

把这个去掉就一切正常。这个插件是启动springboot项目服务时用的，但common只是一个包，并不需要启动服务。看来对一些东西不是特别清楚时乱加就是会出各种问题。