如何使用Maven配置文件pom.xml

<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/maven-v4_0_0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.troyforever</groupId>
 <artifactId>example</artifactId>
 <packaging>war</packaging>
 <version>0.0.1-SNAPSHOT</version>
 <name>example Maven Webapp</name>
 <url>http://maven.apache.org</url>
 <dependencies>
 
 <dependency>
 <groupId>junit</groupId>
 <artifactId>junit</artifactId>
 <version>3.8.1</version>
 <scope>test</scope>
 </dependency>
 
 <dependency>
 <groupId>mysql</groupId>
 <artifactId>mysql-connector-java</artifactId>
 <version>6.0.3</version>
 </dependency>
 
 <dependency>
 <groupId>javax.servlet</groupId>
 <artifactId>javax.servlet-api</artifactId>
 <version>3.1.0</version>
 </dependency>
 
 <dependency>
 <groupId>com.alibaba</groupId>
 <artifactId>fastjson</artifactId>
 <version>1.2.13</version>
 </dependency>

 <dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-webmvc</artifactId>
 <version>4.3.1.RELEASE</version>
 </dependency>
 
 <dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-hibernate3</artifactId>
 <version>2.0.8</version>
 </dependency>
 
 <dependency>
 <groupId>javax.transaction</groupId>
 <artifactId>jta</artifactId>
 <version>1.1</version>
 </dependency>
 
 <dependency>
 <groupId>javax.servlet</groupId>
 <artifactId>jstl</artifactId>
 <version>1.2</version>
 </dependency>
 
 </dependencies>
 <build>
 <finalName>example</finalName>
 <plugins>
 <plugin>
 <groupId>org.apache.maven.plugins</groupId>
 <artifactId>maven-compiler-plugin</artifactId>
 <version>3.1</version>
 <configuration>
 <source>1.8</source>
 <target>1.8</target>
 <encoding>utf-8</encoding>
 </configuration>
 </plugin>
 </plugins>
 </build></project>