maven无法添加库

Question

 <?xml version="1.0" encoding="UTF-8"?>

<groupId>org.baharan</groupId>
<artifactId>uni</artifactId>
<version>0.0.1</version>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.10.RELEASE</version>
</parent>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.9.2</version>
    </dependency>

</dependencies>

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


<build>
    <plugins>

    </plugins>
</build>

    <!DOCTYPE hibernate-configuration PUBLIC
            "-//Hibernate/Hibernate Configuration DTD//EN"
            "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

    <property name="hibernate.dialect">
        org.hibernate.dialect.MySQL5Dialect
    </property>
    <property name="connection.driver_class">
        com.mysql.jdbc.Driver
    </property>
    <property name="hibernate.connection.url">
        jdbc:mysql://localhost:3306/project2
    </property>
    <property name="hibernate.connection.username">
        root
    </property>
    <property name="hibernate.connection.password">
      root
    </property>
    <property name="show_sql">true</property>
    <property name="hbm2ddl.auto">update</property>
    <property name="hibernate.enable_lazy_load_no_trans" >true</property>
    <!-- DB schema will be updated if needed -->
    <!-- <property name="hbm2ddl.auto">update</property> -->
    <mapping class="Student"/>
    <mapping class="Course"/>
</session-factory>

Answer 1

您没有在pom文件中添加spring-boot-maven-plugin。

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

之后，您应该能够通过以下方式创建Spring Boot应用程序：

mvn clean package

在普通命令行上。