解析properties文件

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Properties;

/**
  * 返回Properties文件中的值
  * @param fileName文件路径
  * @param key文件中key名称
  * @return
  */
public class PropertyUtil {
    public static String getValueFromFile(String fileName,String key){
	Properties properties = new Properties();
	ClassLoader loader=Thread.currentThread().getContextClassLoader();
	URL propertiesUrl=loader.getResource(fileName);    
        try {
		InputStream in = propertiesUrl.openStream();
		properties.load(in);
	} catch (IOException e) {
		e.printStackTrace();
	}
		
	String value = properties.getProperty(key);
	return value;
　　}
}