如何在JAVA中动态改变application.properties文件中的值

Properties prop = new Properties();
InputStream input = new FileInputStream("path/to/application.properties");
prop.load(input);

prop.setProperty("key", "new value");

OutputStream output = new FileOutputStream("path/to/application.properties");
prop.store(output, null);

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

public class DynamicProperties {
    public static void main(String[] args) {
        try {
            Properties prop = new Properties();
            InputStream input = new FileInputStream("path/to/application.properties");
            prop.load(input);

            // 修改属性值
            prop.setProperty("key", "new value");

            // 保存修改后的文件
            OutputStream output = new FileOutputStream("path/to/application.properties");
            prop.store(output, null);

            System.out.println("Properties file updated successfully!");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}