property 工具类-蒲公英云

property 工具类

package com.zichen.xhkq.util;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.slf4j.LoggerFactory;
import org.slf4j.Logger;
public class PropertiesUtil {
    private static Logger logger = LoggerFactory.getLogger(PropertiesUtil.class);
    private static Properties props;
    static {
        loadProps();
    }
    synchronized static private void loadProps() {
        logger.info("开始加载properties文件内容.......");
        props = new Properties();
        InputStream in = null;
        try {
            // 第一种，通过类加载器进行获取properties文件流
            // PropertiesUtil.class.getClassLoader().getResourceAsStream("ftpConnect.properties");
            // 第二种，通过类进行获取properties文件流
            in = PropertiesUtil.class.getResourceAsStream("/appInfo.properties");
            props.load(in);
        } catch (FileNotFoundException e) {
            logger.error("jdbc.properties文件未找到");
        } catch (IOException e) {
            logger.error("出现IOException");
        } finally {
            try {
                if (null != in) {
                    in.close();
                }
            } catch (IOException e) {
                logger.error("jdbc.properties文件流关闭出现异常");
            }
        }
        logger.info("加载properties文件内容完成...........");
        logger.info("properties文件内容：" + props);
    }
    public static String getProperty(String key, String defaultValue) {
        if (null == props) {
            loadProps();
        }
        return props.getProperty(key, defaultValue);
    }
}