在使用 Properties 类之前

以读取配置文件信息为例，下面是一个简单的 demo

import java.io.*;
public class Main {
    public static void main(String[] args) throws Exception {
        String path = "./mysql.properties";
        BufferedReader br = new BufferedReader(new FileReader(path));
        String line = null;
        while ((line = br.readLine()) != null) {
            String[] split = line.split("=");
            System.out.println(split[0] + " 的值是：" + split[1]);
        }
        br.close();
    }
}