Math_Learning/src/Base/Email_settings.java

package Base;

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

public class Email_settings {
    private static final String CONFIG_FILE = "config/email.properties";
    private static Properties properties;
    private static long lastModified = 0;

    static {
        loadConfig();
    }

    private static void loadConfig() {
        properties = new Properties();
        setDefaultProperties();
        File configFile = new File(CONFIG_FILE);
        if (configFile.exists()) {
            try (FileInputStream input = new FileInputStream(configFile)) {
                properties.load(input);
                lastModified = configFile.lastModified();
            } catch (IOException e) {
                System.err.println("加载邮箱配置文件失败，使用默认配置: " + e.getMessage());
            }
        } else {
            createDefaultConfigFile();
        }
    }

    private static void setDefaultProperties() {
        properties.setProperty("smtp.host", "smtp.qq.com");
        properties.setProperty("smtp.port", "587");
        properties.setProperty("from.email", "835981889@qq.com");
        properties.setProperty("email.password", "fpqfprqznbvdbcdf");
        properties.setProperty("ssl.enable", "true");
    }

    private static void createDefaultConfigFile() {
        File configDir = new File("config");
        if (!configDir.exists()) {
            configDir.mkdirs();
        }

        try (FileOutputStream output = new FileOutputStream(CONFIG_FILE)) {
            properties.store(output, "Settings");
        } catch (IOException e) {
            System.err.println("创建默认配置文件失败: " + e.getMessage());
        }
    }

    private static void checkForUpdates() {
        File configFile = new File(CONFIG_FILE);
        if (configFile.exists() && configFile.lastModified() > lastModified) {
            loadConfig();
        }
    }

    public static String getSmtpHost() {
        checkForUpdates();
        return properties.getProperty("smtp.host");
    }

    public static String getSmtpPort() {
        checkForUpdates();
        return properties.getProperty("smtp.port");
    }

    public static String getFromEmail() {
        checkForUpdates();
        return properties.getProperty("from.email");
    }

    public static String getEmailPassword() {
        checkForUpdates();
        return properties.getProperty("email.password");
    }

    public static boolean isSslEnable() {
        checkForUpdates();
        return Boolean.parseBoolean(properties.getProperty("ssl.enable"));
    }
}