属性文件的读取 Java

import java.util.ResourceBundle;

/**
 * 属性文件的读取
 */
public class ResourceUtil {

 private static ResourceBundle prop = null;

 static {
  try {
   // 属性文件位置，主要不要加上.properties后缀
   prop = ResourceBundle.getBundle("config/dbconfig");
  } catch (Exception ex) {
   ex.printStackTrace();
  }
 }

 /*
  * 根据名称key值，返回String值
  */
 public static String getStringByKey(String key) {
  return prop.getString(key);
 }

 /*
  * 根据名称key值，返回int值
  */
 public static int getIntBykey(String key) {
  return Integer.parseInt(prop.getString(key));
 }

 /*
  * 根据名称key值，返回long值
  */
 public static long getLongBykey(String key) {
  return Long.parseLong(prop.getString(key));
 }

 /*
  * 根据名称key值，返回Boolean值
  */
 public static Boolean getBooleanBykey(String key) {
  return Boolean.parseBoolean(prop.getString(key));
 }

 /*
  * 根据名称key值和分隔符split，返回String数组值
  */
 public static String[] getStringArrayByKey(String key, String split) {
  String value = prop.getString(key);
  return value.split(split);
 }

 /*
  * 根据名称key值，返回String数组值
  */
 public static String[] getStringArrayByKey(String key) {
  return getStringArrayByKey(key, ",");
 }

 /*
  * 根据名称key值和分隔符split，返回int数组值
  */
 public static int[] getIntArrayBykey(String key, String split) {
  String value = prop.getString(key);
  String values[] = value.split(split);
  int array[] = new int[values.length];
  for (int i = 0; i < values.length; i++)
   array[i] = Integer.parseInt(values[i]);
  return array;
 }

 /*
  * 根据名称key值，返回int数组值
  */
 public static int[] getIntArrayBykey(String key) {
  return getIntArrayBykey(key, ",");
 }

 public static void main(String args[]) {
  System.out.println(getStringByKey("datasource.username"));
 }
}