找不到 Spring Boot Maven 插件类

Question

我有三个 Maven 项目，一个是 pom 包，其他 2 个是 jar 包这里是 admin-aggregator pom

<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.sounds.bvs</groupId>
    <artifactId>admin-aggregator</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>


    <modules>
        <module>../admin-lib</module>
        <module>../admin-rest</module>
    </modules>


    <properties>
        <project.build.SourceEncoding>UTF-8</project.build.SourceEncoding>
        <spring-boot-version>2.0.4.RELEASE</spring-boot-version>
        <spring-version>2.0.4.RELEASE</spring-version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <start-class>com.sounds.bvs.AdminRestApp</start-class>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.sounds.bvs</groupId>
                <artifactId>admin-lib</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>com.sounds.bvs</groupId>
                <artifactId>admin-rest</artifactId>
                <version>${project.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                        <configuration>
                            <classifier>exec</classifier>
                            <mainClass>${start-class}</mainClass>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven.compiler.plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <showDeprication>true</showDeprication>
                    <showWarnings>true</showWarnings>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

并且 admin-rest pom.xml 及其主类我没有得到我所缺少的，因为 ctrl-click 导航到相应的项目，并且类型搜索能够在 admin-rest 项目中找到主类 ctrl+ shift+T 也变得静止，它显示相同，

<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.sounds.bvs</groupId>
        <artifactId>admin-aggregator</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>admin-rest</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.sounds.bvs</groupId>
            <artifactId>admin-lib</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-jetty -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>


    </dependencies>
</project>

主类 AdminRestApp.java，我正在尝试运行 admin-aggregator

mvn clean spring-boot:run
mvnw.cmd clean spring-boot:run
./mvnw spring-boot:run 

但没有一个工作

package com.sounds.bvs;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AdminRestApp {

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



and the exception i see class not found exception i tried all which were from similar topic none helped, the start-class tag is also place and hard code the full path com.sounds.bvs.AdminRestApp in mainClass still that also did not help,

我曾尝试更改 Spring Boot 版本以及 maven 编译器插件版本，这些版本也有帮助，非常需要帮助。

早些时候包路径很大 com.sounds.bvs.admin.rest 那个时候也同样的问题改变了包名也有帮助

请让我知道我错过了什么提前谢谢。

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] `enter code here`
[INFO] admin-aggregator
[INFO] admin-lib
[INFO] admin-rest
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building admin-aggregator 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.0.0:clean (default-clean) @ admin-aggregator ---
[INFO] 
[INFO] >>> spring-boot-maven-plugin:2.0.4.RELEASE:run (default-cli) > test-compile @ admin-aggregator >>>
[INFO] 
[INFO] <<< spring-boot-maven-plugin:2.0.4.RELEASE:run (default-cli) < test-compile @ admin-aggregator <<<
[INFO] 
[INFO] --- spring-boot-maven-plugin:2.0.4.RELEASE:run (default-cli) @ admin-aggregator ---
[WARNING] 
java.lang.ClassNotFoundException: com.sounds.bvs.AdminRestApp
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:491)
    at java.lang.Thread.run(Thread.java:745)
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] admin-aggregator ................................... FAILURE [ 42.358 s]
[INFO] admin-lib .......................................... SKIPPED
[INFO] admin-rest ......................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 56.280 s
[INFO] Finished at: 2018-08-10T00:43:37+05:30
[INFO] Final Memory: 17M/111M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.0.4.RELEASE:run (default-cli) on project admin-aggregator: An exception occurred while running. com.sounds.bvs.AdminRestApp -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Answer 1

添加spring boot版本解决了我的问题。

    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>2.4.1</version>
        </plugin>
    </plugins>

在 Maven Tab ->plugins 中替换为您的 spring boot 版本

Answer 2

它对我有用。

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

Answer 3

将 ${project.parent.version} 添加到 pom.xml 中的依赖项解决了我的问题。

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-maven-plugin</artifactId>
  <version>${project.parent.version}</version>
  <type>maven-plugin</type>
</dependency>

Answer 4

仅添加版本。

<groupId>org.springframework.boot</groupId> 
<artifactId>spring-boot-maven-plugin</artifactId> 
<version>${project.parent.version}</version> 

异常错误

Answer 5

您必须mvn spring-boot:run从包含 Spring Boot 应用程序 ( ) 的模块 maven 执行命令admin-rest，而不是从父模块 ( admin-aggregator) 执行命令。
但是您从父模块执行它。