import java.io.InputStream;
import java.util.Properties;

public class PropertiesUtil {
	
	/**
	 * 通过key获得配置的值
	 * 
	 * @param key
	 * @return
	 */
	public static String getProps(String key) {
		Properties props = new Properties();
		try {
			// 获取项目的相对路径
			InputStream in = PropertiesUtil.class
					.getResourceAsStream("/app.properties");
			props.load(in);
			in.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return props.getProperty(key);
	}
	
	
	public static String getAlipay(String key){
		Properties props = new Properties();
		try {
			InputStream in = PropertiesUtil.class
					.getResourceAsStream("/alipay.properties");
			props.load(in);
			in.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return props.getProperty(key);
	}
	
}