读取properties文件和属性

public class PropertiesUtils {
/**
* 配置文件.
*/
private Properties prop;
/**
* 输入流.
*/
private InputStream is;

/**
* 构造函数.
*
* @param filename
*            以“/”开头，根据工程项目路径读取
*/
public PropertiesUtils(String filename) {
prop = new Properties();
is = getClass().getResourceAsStream(filename);
try {
prop.load(is);
} catch (IOException e) {
System.out.print(e.getMessage());
e.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}

/**
* 读取属性.
*
* @param propertyName
* @return
*/
public String getProperties(String propertyName) {
return prop.getProperty(propertyName);
}
}