MAVEN基础

<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.zp.summer</groupId>  <artifactId>helloextends</artifactId>  <version>0.0.1-SNAPSHOT</version>    <relativePath>../helloextends</relativePath>  </parent>  <artifactId>hellothree</artifactId>  <packaging>jar</packaging>  <name>hellothree</name>  <dependencies>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>    </dependency>    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core --><dependency>    <groupId>org.hibernate</groupId>    <artifactId>hibernate-core</artifactId></dependency>    <dependency>  <groupId>com.zp.summer</groupId>  <artifactId>hellofirst</artifactId>    </dependency>        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --><dependency>    <groupId>mysql</groupId>    <artifactId>mysql-connector-java</artifactId></dependency>    <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api --><dependency><groupId>org.apache.logging.log4j</groupId><artifactId>log4j-api</artifactId></dependency><dependency>    <groupId>org.slf4j</groupId>    <artifactId>slf4j-api</artifactId></dependency><!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 --><dependency>    <groupId>org.slf4j</groupId>    <artifactId>slf4j-log4j12</artifactId></dependency>  </dependencies>  </project>