如何从父目录执行spring boot模块？

Question

我不明白为什么这不起作用；似乎使用 spring boot 和 angular 作为 maven 模块的教程最终直接用 java 运行，所以这个问题不存在......但我认为这应该仍然有效？

运行 我正在尝试从父 POM 运行“mvnw spring-boot:run”（只有一个 mvnw.cmd 文件及其在父文件夹中）。

错误 “在当前项目和插件组中没有找到前缀'spring-boot'的插件”

父 POM：

<?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>project.site.org</groupId>
    <artifactId>artifactID</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>
    <modules>
        <module>frontend</module>
        <module>backend</module>
    </modules>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
</project>

Spring Boot 模块 POM

<?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>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>project.site.org</groupId>
    <artifactId>backend</artifactId>
    <packaging>jar</packaging>
    <name>backend</name>

    <properties>
        <java.version>11</java.version>
    </properties>

    <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>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.3.3</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.4.2</version>

            </plugin>
        </plugins>
    </build>

</project>

角度 POM

<?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>project.site.org</groupId>
        <artifactId>videowall</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <groupId>project.site.org</groupId>
    <artifactId>frontend</artifactId>
    <packaging>jar</packaging>
    <name>frontend</name>

  <build>
    <resources>
      <resource>
        <directory>src/main/resources</directory>
      </resource>
    </resources>
    <plugins>
    </plugins>
  </build>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

</project>

Answer 1

-pl 允许您从项目根目录对特定模块运行 Maven 命令。在这种情况下：

./mvnw spring-boot:run -pl backend

Answer 2

您可以从存储mvnw 脚本的位置执行mvn 命令，也可以提供相同的路径。该级别是否有mvnw 目录？

这可能会有所帮助： How to run Maven from another directory (without cd to project dir)?