java 读取配置文件类

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.log4j.Logger;

public class YEConfiguration {

	private static final Logger log = Logger.getLogger(YEConfiguration.class);

	private Map<Object, Object> confMap = new HashMap<Object, Object>() ;

	private String configPath ;

	public YEConfiguration(){
		this.configPath = YEConfiguration.class.getClassLoader().getResource("/").getPath();
		init();
	}

	public YEConfiguration(String configPath){
		this.configPath = configPath;
		init();
	}

	public void init(){
		//log.info("init !! filepath=["+this.configPath+"]");

		Properties pro = new Properties();
		InputStream input = null;
		try {
			//modified by zhangcm on 2016-09-29
		    //input = new FileInputStream(this.configPath);
			input = getClass().getResourceAsStream(configPath);
			//end by zhangcm

			pro.load(input);

			for(Object key : pro.keySet()){
				confMap.put(key, pro.get(key));
			}

		} catch (FileNotFoundException e) {
			log.error(this.configPath + " is not found!");

		} catch (IOException e) {

			log.error(this.configPath + " key/value pair pattern error!!");
		}finally{
			try {
				input.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			pro.clear();
		}
	}

	public String get(String key){

		return confMap.get(key).toString();
	}

	public void set(Object key,Object value){

		confMap.put(key, value);
	}

}