java遍历properties文件操作指南

public class PropertiesUtil {
public static Map getFileIO(String fileName){
Properties prop = new Properties();
Map propMap=new HashMap();
InputStream in = PropertiesUtil.class.getResourceAsStream(fileName);
try {
prop.load(in);
Setkeyset = prop.keySet();
for (Object object : keyset) {
String propValue= prop.getProperty(object.toString()).toString();
propMap.put(object.toString(),prop.getProperty(object.toString()).toString());
System.out.println(object.toString()+" : "+propValue);
}
} catch (IOException e) {
e.printStackTrace();
}finally{
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
public static void main(String[] args) {
getFileIO("/loginurl.properties");
}
}