java读取配置文件以及运行jar的方式

java读取配置文件

package com.hikvision.readproperties;

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

public class readproperties {
    public static void main(String[] args) throws IOException {
        Properties pps = new Properties();
        pps.load(new FileInputStream(args[0]));
        Enumeration names = pps.propertyNames();
        while (names.hasMoreElements()) {
            String strKey = (String) names.nextElement();
            String strValue = pps.getProperty(strKey);
            System.out.println(strKey + "=" + strValue);
        }
    }
}

使用带主类的打包方式
https://blog.csdn.net/godlovebinlee/article/details/81073101

直接使用java运行jar程序

D:\a>java -jar a.jar D:\a\a.properties
root=D:/a.txt