maven添加外部依賴

<finalName>dbTest</finalName>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
<compilerArguments>
<extdirs>src\main\webapp\WEB-INF\lib</extdirs>
</compilerArguments>
</configuration>
</plugin>
</plugins>
</build>