public static DbDataAdapter CreateDbDataAdapter(string connName)
{
DbConnSettings settings = GetDbConnSettings(connName);
DbDataAdapter adapter = settings.ProviderFactory.CreateDataAdapter();
return(adapter);
}
private static DbConnSettings GetDbConnSettings(string connName)
{
lock (dbConnSettingsList)
{
foreach (DbConnSettings mySettings in dbConnSettingsList)
{
if (mySettings.ConnName.Equals(connName))
{
return(mySettings);
}
}
ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings[connName];
if (settings == null)
{
throw new Exception("在配置文件中没找到名称为 " + connName + " 的数据库连接串配置");
}
DbConnSettings mySettings2 = new DbConnSettings();
dbConnSettingsList.Add(mySettings2);
mySettings2.ConnName = connName;
mySettings2.ProviderName = settings.ProviderName;
mySettings2.ProviderFactory = DbProviderFactories.GetFactory(settings.ProviderName);
mySettings2.ConnStr = DecryptPasswordInDbConnStr(settings.ConnectionString);
return(mySettings2);
}
}
public static DbConnection GetDbConnection(string connName)
{
DbConnSettings settings = GetDbConnSettings(connName);
DbConnection conn = settings.ProviderFactory.CreateConnection();
conn.ConnectionString = settings.ConnStr;
return(conn);
}
public static bool TestDbConnect(string connName, out string msg)
{
bool ok = false;
StringBuilder sb = new StringBuilder();
try
{
DbConnSettings settings = GetDbConnSettings(connName);
sb.Append("<br> DB ProviderName=\"").Append(settings.ProviderName).Append("\"");
DbConnection conn = settings.ProviderFactory.CreateConnection();
conn.ConnectionString = settings.ConnStr;
string str = settings.ConnStr.ToUpper();
int inx1 = str.IndexOf("PASSWORD="******"PWD=");
}
if (inx1 < 0)
{
inx1 = str.IndexOf("PASSWORD");
}
if (inx1 < 0)
{
inx1 = str.IndexOf("PWD");
}
str = settings.ConnStr;
if (inx1 >= 0)
{
int inx2 = str.IndexOf(";", inx1);
if (inx2 >= 0)
{
str = str.Remove(inx1, inx2 - inx1 + 1);
}
else
{
str = str.Remove(inx1);
}
}
sb.Append("<br> DB ConnectionString=\"").Append(str).Append("\"");
conn.Open();
conn.Close();
sb.Append("<br>");
sb.Append("<br> 连接到数据库成功");
ok = true;
}
catch (Exception e)
{
sb.Append("<br>");
sb.Append("<br> 连接到数据库失败: ");
sb.Append("<br> ").Append(e.ToString());
}
msg = sb.ToString();
return(ok);
}
