java 读配置文件sqlurl=jdbc:mysql://localhost:3306/mydatabase sqluser=root sqlpwd=12345678 mfusername=test1 index=1,2,3 offset=50

你可以使用 Java 的 Properties 类来读取配置文件中的键值对。以下是一个示例代码，假设配置文件名为 config.properties：

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

public class ReadConfig {
    public static void main(String[] args) {
        Properties prop = new Properties();
        try {
            FileInputStream fis = new FileInputStream("config.properties");
            prop.load(fis);
            fis.close();

            String sqlUrl = prop.getProperty("sqlurl");
            String sqlUser = prop.getProperty("sqluser");
            String sqlPwd = prop.getProperty("sqlpwd");
            String mfUsername = prop.getProperty("mfusername");
            String[] indexArr = prop.getProperty("index").split(",");
            int offset = Integer.parseInt(prop.getProperty("offset"));

            System.out.println("sqlurl: " + sqlUrl);
            System.out.println("sqluser: " + sqlUser);
            System.out.println("sqlpwd: " + sqlPwd);
            System.out.println("mfusername: " + mfUsername);
            System.out.print("index: ");
            for (String index : indexArr) {
                System.out.print(index + " ");
            }
            System.out.println();
            System.out.println("offset: " + offset);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

输出结果：

sqlurl: jdbc:mysql://localhost:3306/mydatabase
sqluser: root
sqlpwd: 12345678
mfusername: test1
index: 1 2 3 
offset: 50