Question

我正在制作一个小备份工具......我有一点问题，不知道如何解决这个问题。那就是我在这里问的原因......代码：

strDirectoryData = dlg1.SelectedPath;
strCheckBoxData = "true";
clsCrypto aes = new clsCrypto();
aes.IV = "MyIV";     // your IV
aes.KEY = "MyKey";    // your KEY      
strDirectoryEncryptedData = aes.Encrypt(strDirectoryData, CipherMode.CBC);
strCheckBoxEncryptedData = aes.Encrypt(strCheckBoxData, CipherMode.CBC);

StreamWriter dirBackup = new StreamWriter(dirBackupPath, false, Encoding.UTF8);
StreamWriter checkBackup = new StreamWriter(autoBackupPath, false, Encoding.UTF8);
dirBackup.WriteLine(strDirectoryEncryptedData, Encoding.UTF8);
dirBackup.Close();
checkBackup.WriteLine(strCheckBoxData, Encoding.UTF8);
checkBackup.Close();'

每次都出错 - 进程无法访问该文件，因为它正由另一个进程使用...

我也在Form1_Load

中有这个

if (!Directory.Exists(folderPath))
{
    Directory.CreateDirectory(folderPath);
    string strCheckBoxData;
    string strDirectoryData;
    string strCheckBoxEncryptedData;
    string strDirectoryEncryptedData;
    strDirectoryData = "Nothing here";
    strCheckBoxData = "false";
    clsCrypto aes = new clsCrypto();
    aes.IV = "MyIV";     // your IV
    aes.KEY = "MyKey";    // your KEY      
    strDirectoryEncryptedData = aes.Encrypt(strDirectoryData, CipherMode.CBC);
    strCheckBoxEncryptedData = aes.Encrypt(strCheckBoxData, CipherMode.CBC);

    StreamWriter dirBackup = new StreamWriter(dirBackupPath, false, Encoding.UTF8);
    StreamWriter checkBackup = new StreamWriter(autoBackupPath, false, Encoding.UTF8);
    dirBackup.WriteLine(strDirectoryEncryptedData);
    dirBackup.Close();
    checkBackup.WriteLine(strCheckBoxEncryptedData);
    checkBackup.Close();
}
else
{
    string strCheckBoxDecryptedData;
    string strDirectoryDecryptedData;

    StreamReader dirEncrypted = new StreamReader(dirBackupPath);
    StreamReader checkEncrypted = new StreamReader(autoBackupPath);

有什么想法吗？

Answer 1

您没有正确关闭资源。您无法打开要写入的文件，因为您已将其打开以进行阅读，但尚未将其关闭。

完成使用后，您需要处理StreamReader个对象。 StreamReader类实现IDisposable。我建议您使用using块，以便即使存在异常也始终关闭该文件。

using (StreamReader dirEncrypted = new StreamReader(dirBackupPath)) {
     // read from dirEncrypted here
}

该进程无法访问该文件，因为它正由另一个进程＃2使用

1 个答案: