java备份还原sqlite数据库

以下是使用Java程序备份和还原SQLite数据库的示例代码：

1. 备份SQLite数据库：

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

public class SQLiteBackup {
    public static void main(String[] args) {
        String sourceDBPath = "path/to/source.db"; // 源数据库文件路径
        String backupDBPath = "path/to/backup.db"; // 备份数据库文件路径

        try {
            File sourceDBFile = new File(sourceDBPath);
            File backupDBFile = new File(backupDBPath);

            FileInputStream fis = new FileInputStream(sourceDBFile);
            FileOutputStream fos = new FileOutputStream(backupDBFile);

            byte[] buffer = new byte[1024];
            int length;
            while ((length = fis.read(buffer)) > 0) {
                fos.write(buffer, 0, length);
            }

            fos.flush();
            fos.close();
            fis.close();

            System.out.println("SQLite database backup completed.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

2. 还原SQLite数据库：

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

public class SQLiteRestore {
    public static void main(String[] args) {
        String backupDBPath = "path/to/backup.db"; // 备份数据库文件路径
        String restoreDBPath = "path/to/restore.db"; // 还原数据库文件路径

        try {
            File backupDBFile = new File(backupDBPath);
            File restoreDBFile = new File(restoreDBPath);

            FileInputStream fis = new FileInputStream(backupDBFile);
            FileOutputStream fos = new FileOutputStream(restoreDBFile);

            byte[] buffer = new byte[1024];
            int length;
            while ((length = fis.read(buffer)) > 0) {
                fos.write(buffer, 0, length);
            }

            fos.flush();
            fos.close();
            fis.close();

            System.out.println("SQLite database restore completed.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

请注意，你需要将代码中的`path/to/source.db`和`path/to/backup.db`替换为实际的数据库文件路径。同样，对于还原数据库，你需要将`path/to/backup.db`和`path/to/restore.db`替换为实际的数据库文件路径。