相关疑难解决方法(0)

我是 Spring Boot 的新手，我打算将 h2 数据库与 maven 项目连接起来。这是我的 pom.Xml 文件。该文件给出了错误插件 'org.springframework.boot:spring-boot-maven-plugin:' not found

 <?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>2.3.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>dev.che</groupId>
    <artifactId>stu</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>stu</name>
    <description>Demo project for Spring Boot</description>

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

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </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> …

使用IntelliJ IDEA创建Maven模块后，Maven项目视图中出现了一些问题。当我的光标悬停在Maven项目上时，我看到以下内容：

Project:
cn.itcast.babasport:parent:1.0-SNAPSHOT
Location:
/home/shuaidi/IdeaProjects/parent/pom.xml

Problems:
Unresolved plugin: 'org.apache.maven.plugins:maven-jar-plugin:2.4'

Unresolved plugin: 'org.apache.maven.plugins:maven-compiler-plugin:3.1'

Unresolved plugin: 'org.apache.maven.plugins:maven-surefire-plugin:2.12.4'

Unresolved plugin: 'org.apache.maven.plugins:maven-install-plugin:2.4'

Unresolved plugin: 'org.apache.maven.plugins:maven-site-plugin:3.3'

这是我第一次使用IntelliJ IDEA，所以我用新安装的IDEA和新安装的maven来做这些事情，而我只是创建一个maven模块而没有做任何其他事情。我不知道为什么出现这些问题。我只想创建一个Maven模块而没有任何问题。

ps：

这是我所有的pom文件。

<?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>cn.itcast.babasport</groupId>
    <artifactId>parent</artifactId>
    <version>1.0-SNAPSHOT</version>


</project>