Vanilla SpringBoot应用程序可在IntelliJ中运行，但“ MVN编译”失败

问题描述

当我通过IntelliJ中的SpringBoot initializr选项创建香草SpringBoot应用程序时，这将创建一个简单的DemoApplication.java文件：

package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
    
@SpringBootApplication
public class DemoApplication {
  
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class,args);
    }
    
}

当我从IntelliJ运行main时，它似乎工作得很好（不是现在就做得很好）：

 .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__,| / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.3.4.RELEASE)

2020-09-20 13:03:52.377  INFO 7456 --- [           main] com.example.demo.DemoApplication         : Starting DemoApplication on DESKTOP-5MKKIB9 with PID 7456 (C:\Users\jasonfil\code\demo\target\classes started by jasonfil in C:\Users\jasonfil\code\demo)
2020-09-20 13:03:52.377  INFO 7456 --- [           main] com.example.demo.DemoApplication         : No active profile set,falling back to default profiles: default
2020-09-20 13:03:52.824  INFO 7456 --- [           main] com.example.demo.DemoApplication         : Started DemoApplication in 0.75 seconds (JVM running for 1.446)

Process finished with exit code 0

但是当我尝试从命令行运行mvn compile时，我收到一条消息，提示我的编译未达到标准值：

C:\Users\jasonfil\code\demo>mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] --------------------------< com.example:demo >--------------------------
[INFO] Building demo 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ demo ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] copying 1 resource
[INFO] copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ demo ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to C:\Users\jasonfil\code\demo\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.096 s
[INFO] Finished at: 2020-09-20T13:57:26-04:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project demo: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR]
[ERROR] -> [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/MojoFailureException
'cmd' is not recognized as an internal or external command,operable program or batch file.

IntelliJ为我提供了基本的pom.xml，但我没有接触过它：

<?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>2.3.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <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>
            <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>

我正在一个需要亚马逊Java 11 Corretto JDK的项目中工作。考虑到该项目的构建和运行，我对JDK的感觉很好。我也尝试过使用Oracle的JDK 14，但是没有运气。这是Project Structure下的IntelliJ规范：

最后，我也看到了有关maven-compiler-plugin的消息

  <dependency>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.1</version>
  </dependency>

到我的pom。刷新行家，清理然后再次编译后，那里也没有运气。有什么想法吗？

解决方法

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