关于java读取和写入properties配置文件的内容

package com.zznode.transmit.util;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

/**
 * 读取和写入properties文件
 * @author mengzw
 * @since 3.0 2014-3-4
 */
public class ReadProperty {

    Properties prop = new Properties();

    /**
     * @param key    读取配置文件的key值
     * @param path    读取配置文件的路径：例如：E:/db.properties
     * @return
     */
    public String ReadProp(String key, String path) {
        String value = "";
        FileInputStream fis;
        fis = null;
        try {
            fis = new FileInputStream(path);
            prop.load(fis);
            value = prop.getProperty(key);
            fis.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block

            e.printStackTrace();
        }

        return value;

    }

    /**
     * @param key 写入配置文件的key值
     * @param value    写入配置文件的value值
     * @param path 写入配置文件的路径 例如：E:/db.properties
     */
    public void WriteProp(String key, String value, String path) {
        try {
            InputStream fis = new FileInputStream(path);
            prop.load(fis);
            OutputStream fos = new FileOutputStream(path);
            prop.put(key, value);
            prop.store(fos, "Update   " + key + "  " + value);
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}