package org.sxkj.common.utils;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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public class DbEncrypt {
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/**
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* 使用 SQLCipher 对数据库进行加密
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*
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* @param originalDbPath 原始未加密数据库的路径
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* @param newDbPath 新加密数据库的存储路径
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* @param newDbPassword 新加密数据库的密码
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* @return 加密是否成功
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*/
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public static boolean encryptDatabase(String originalDbPath, String newDbPath, String newDbPassword) {
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try {
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// SQLCipher命令
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String[] command = {
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"sqlcipher", originalDbPath,
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"-cmd", "PRAGMA key='';", // 空密钥，用于未加密的原数据库
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"-cmd", String.format("ATTACH DATABASE '%s' AS encrypted KEY '%s';", newDbPath, newDbPassword),
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"-cmd", "SELECT sqlcipher_export('encrypted');",
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"-cmd", "DETACH DATABASE encrypted;",
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"-cmd", ".exit"
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};
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// 执行命令
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Process process = Runtime.getRuntime().exec(command);
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// 读取命令行输出
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BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
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String line;
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while ((line = reader.readLine()) != null) {
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System.out.println(line);
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}
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// 等待命令执行完成
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process.waitFor();
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reader.close();
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// 检查执行结果
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int exitCode = process.exitValue();
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return exitCode == 0;
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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}
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}
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