属性文件.properties读取工具PropertyUtil

package com.wanda.crs.utils;

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

public class PropertyUtil {
    public String getProperty(String fileName,String key){
        String value = null;
        Properties pro = new Properties();
        try {
            pro.load(getClass().getResourceAsStream(fileName));
            if(pro.containsKey(key))
                value = pro.getProperty(key).trim();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return value;        
    }
}