我创建了一个包含 3 个模块的项目:
在kazi-core
中,我有一些实体和枚举,我想在 api 模块中使用它们。
我的 kazi-core pom.xml:
<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.emo.kazi</groupId>
<artifactId>kazi</artifactId>
<version>0.1-SNAPSHOT</version>
</parent>
<artifactId>kazi-core</artifactId>
<version>${parent.version}</version>
<packaging>jar</packaging>
<name>kazi-core</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
</dependency>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.8.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我在 kazi-core 模块中有一个主类:
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
我的 kazi-api pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.emo.kazi</groupId>
<artifactId>kazi</artifactId>
<version>0.1-SNAPSHOT</version>
</parent>
<artifactId>kazi-api</artifactId>
<version>${parent.version}</version>
<packaging>jar</packaging>
<name>kazi-api</name>
<url>http://maven.apache.org</url>
<properties>
<org.mapstruct.version>1.2.0.Final</org.mapstruct.version>
</properties>
<dependencies>
<dependency>
<groupId>com.emo.kazi</groupId>
<artifactId>kazi-core</artifactId>
<version>${project.version}</version>
<exclusions>
<exclusion>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-jdk8</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<verbose>true</verbose>
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
<compilerArgs>
<arg>-Amapstruct.suppressGeneratorTimestamp=true</arg>
<arg>-Amapstruct.defaultComponentModel=spring</arg>
</compilerArgs>
</configuration>
</plugin>
</plugins>
</build>
我的父 pom.xml:
<parent>
<groupId>com.emo.kazi</groupId>
<artifactId>kazi-parent</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath/>
</parent>
<artifactId>kazi</artifactId>
<version>0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>build</module>
<module>kazi-core</module>
<module>kazi-api</module>
<module>kazi-service</module>
</modules>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
</project>
我有一个父 pom.xml,我在其中定义了所有启动器依赖项。
通过mvn clean install
,很多符号找不到:
Error:(4,30) java: package com.kazi.core.entities does not exist
Error:(12,29) java: cannot find symbol
Error:(14,41) java: cannot find symbol
Error:(17,5) java: cannot find symbol
当我删除时:
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
我没有任何编译错误。但我想创建一个可运行的 jar 。
最佳答案
我移动了父 pom.xml 中的 build
标记,并向 kazi-core
模块中的 Main 类添加了 execution
标记:
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
<configuration>
<mainClass>com.emo.core.Application</mainClass>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
我在kazi-api
和kazi-service
中添加了build
标签并跳过执行:
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
</build>
效果很好。
关于java - Spring boot多模块项目编译错误: cannot find symbol,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62288200/