StringUtils和IOUtils工具包的使用

加载apache的工具类

<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.6</version>
</dependency>

import org.apache.commons.lang.StringUtils;

if (!StringUtils.isEmpty(kylinConfHome)) {
        logger.info("Use KYLIN_CONF=" + kylinConfHome);
        return getKylinPropertiesFile(kylinConfHome);
    }

关闭流操作

<dependency>
    <groupId>commons-io</groupId>
    <artifac tId>commons-io</artifactId>
    <version>2.4</version>
</dependency>

FileInputStream fis = new FileInputStream(propFile);
finally {
       IOUtils.closeQuietly(fis);
}