c# 注册表操作
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/// <summary>
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/// 读取注册表值
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/// </summary>
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/// <param name="strName"></param>
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/// <returns></returns>
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public static string GetRegEditData(string strName)
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{
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try
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{
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string registData;
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RegistryKey hkml = Registry.LocalMachine;
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RegistryKey software = hkml.OpenSubKey("SOFTWARE",true);
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RegistryKey aimdir = software.OpenSubKey("username",true);
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registData = aimdir.GetValue(strName).ToString();
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return MD5Decrypt(registData);
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}
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catch(Exception ex)
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{
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Log.WriteDataBase(DateTime.Now,"3",FrmMain.userName,ex.Message,"主机名:"+System.Net.Dns.GetHostName()+";IP地址:"+FrmMain.addressList[0]);
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return "";
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}
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}
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/// <summary>
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/// 写入注册表
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/// </summary>
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/// <param name="strName"></param>
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public static void SetRegEditData( string strName,string strValue)
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{
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try
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{
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RegistryKey hklm = Registry.LocalMachine;
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RegistryKey software = hklm.OpenSubKey("SOFTWARE",true);
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RegistryKey aimdir = software.CreateSubKey("username");
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aimdir.SetValue(strName,MD5Encrypt(strValue));
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}
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catch(Exception ex)
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{
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Log.WriteDataBase(DateTime.Now,"3",FrmMain.userName,ex.Message,"主机名:"+System.Net.Dns.GetHostName()+";IP地址:"+FrmMain.addressList[0]);
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}
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}
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/// <summary>
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/// 修改注册表项
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/// </summary>
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/// <param name="strName"></param>
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/// <param name="strValue"></param>
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public static void ModifyRegEditData( string strName ,string strValue)
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{
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try
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{
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RegistryKey hklm = Registry.LocalMachine;
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RegistryKey software = hklm.OpenSubKey("SOFTWARE\\username",true);
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software.SetValue(strName,MD5Encrypt(strValue));
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}
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catch(Exception ex)
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{
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Log.WriteDataBase(DateTime.Now,"3",FrmMain.userName,ex.Message,"主机名:"+System.Net.Dns.GetHostName()+";IP地址:"+FrmMain.addressList[0]);
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}
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}
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/// <summary>
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/// 判断指定注册表项是否存在
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/// </summary>
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/// <param name="strName"></param>
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/// <returns></returns>
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public static bool IsExist(string strName)
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{
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try
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{
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bool exit = false;
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string[] subkeyNames;
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RegistryKey hkml = Registry.LocalMachine;
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RegistryKey software = hkml.OpenSubKey("SOFTWARE",true);
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RegistryKey aimdir = software.OpenSubKey("username",true);
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subkeyNames = aimdir.GetValueNames();
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foreach(string keyName in subkeyNames)
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{
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if(keyName == strName)
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{
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exit = true;
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return exit;
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}
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}
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return exit;
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}
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catch(Exception ex)
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{
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Log.WriteDataBase(DateTime.Now,"3",FrmMain.userName,ex.Message,"主机名:"+System.Net.Dns.GetHostName()+";IP地址:"+FrmMain.addressList[0]);
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return false;
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}
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}
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/// <summary>
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/// MD5解密
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/// </summary>
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/// <param name="strValue"></param>
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/// <returns></returns>
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public static string MD5Decrypt(string strValue)
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{
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try
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{
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System.Security.Cryptography.MD5 md5 = new MD5CryptoServiceProvider();
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byte[] result = md5.TransformFinalBlock(System.Text.Encoding.Default.GetBytes(strValue), 0, strValue.Length);
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return System.Text.Encoding.Default.GetString(result);
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}
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catch(Exception ex)
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{
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Log.WriteDataBase(DateTime.Now,"3",FrmMain.userName,ex.Message,"主机名:"+System.Net.Dns.GetHostName()+";IP地址:"+FrmMain.addressList[0]);
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return "";
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}
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}
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/// <summary>
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/// MD5加密
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/// </summary>
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/// <param name="strValue"></param>
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/// <returns></returns>
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public static string MD5Encrypt(string strValue)
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{
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try
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{
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MD5 md5= new MD5CryptoServiceProvider();
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byte[] result = md5.ComputeHash(System.Text.Encoding.Default.GetBytes(strValue));
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return System.Text.Encoding.Default.GetString(result);
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}
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catch(Exception ex)
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{
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Log.WriteDataBase(DateTime.Now,"3",FrmMain.userName,ex.Message,"主机名:"+System.Net.Dns.GetHostName()+";IP地址:"+FrmMain.addressList[0]);
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return "";
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}
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}
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