package com.edu.dk.portal.app.zp.util;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Properties;

/**
 * 获取系统属性文件内容
 * 
 * @since
 * @version 2013-5-6
 * @author louweifeng
 */
public class SystemProperties {
	private static Properties properties = new Properties();

	static {
		try {
			properties.load(SystemProperties.class.getClassLoader().getResourceAsStream("mail.properties"));
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	/**
	 * 根据key获取属性值
	 * 
	 * @param key
	 * @return
	 */
	public static String getProperty(String key) {
		Object value = properties.get(key);
		if (value == null) {
			return key;
		} else {
			String str = value.toString();
			try {
				str = new String(str.getBytes("ISO-8859-1"), "UTF-8");
			} catch (UnsupportedEncodingException e1) {
				e1.printStackTrace();
			}
			return str;
		}
	}
}