需要多加一個依賴
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>2.2</version>
<scope>compile</scope>
</dependency>
需要多加一個依賴
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>2.2</version>
<scope>compile</scope>
</dependency>