public static bool CheckConnection(BaseConfigInfo bci, out string msg)
{
msg = "";
try
{
string connectionString = bci.DBConnectionString;
string selectDbType = bci.DBType;
connectionString = connectionString.Replace("{$App}", AppDomain.CurrentDomain.BaseDirectory);
IDbDriver driver = CreateDbDriver(selectDbType);
using (IConnection conn = driver.CreateConnection(connectionString))
{
SqlStatement st = new SqlStatement("SELECT 1");
conn.QueryScalar(st);
}
return(true);
}
catch (Exception ex)
{
if (ex.Message.Trim().ToUpper().StartsWith("ORA-00923"))
{
return(true);
}
else
{
msg = ex.Message;
return(false);
}
}
}
public void ExcuteSQL(BaseConfigInfo bci, string updateFile)
{
if (updateFile != "")
{
string connectionString = bci.DBConnectionString.Replace("{$App}", AppDomain.CurrentDomain.BaseDirectory);
XmlDocument doc = new XmlDocument();
doc.Load(updateFile);
foreach (XmlNode node in doc.SelectNodes("/Update/Database"))
{
IDbDriver dbDriver = CreateDbDriver(bci.DBType);
if (dbDriver == null)
{
continue;
}
//开始处理
int success = 0;
int errors = 0;
using (IConnection conn = dbDriver.CreateConnection(connectionString))
{
foreach (XmlNode sub in node.SelectNodes("Sql"))
{
if (sub == null || String.IsNullOrEmpty(sub.InnerText) || String.IsNullOrEmpty(sub.InnerText.Trim()))
{
continue;
}
//读取SQL语句，逐一执行
SqlStatement sql = new SqlStatement();
sql.CommandType = System.Data.CommandType.Text;
sql.SqlClause = sub.InnerText.Trim();
dbDriver.FormatSQL(sql);
try
{
conn.Update(sql);
success++;
}
catch (Exception ex)
{
//出现了错误，我们继续执行
We7.Framework.LogHelper.WriteFileLog(We7.Framework.LogHelper.sql_plugin_update,
"执行SQL：" + sql.SqlClause, ex.Message);
errors++;
continue;
}
}
}
We7.Framework.LogHelper.WriteFileLog(We7.Framework.LogHelper.sql_plugin_update.ToString(),
"执行完毕：",
string.Format("{3}执行完毕！共执行语句{0}条，成功{1}，失败{2} 。", success + errors, success, errors, updateFile));
}
}
}
/// <summary>
/// 执行数据迁移
/// </summary>
/// <param name="xmlPath">数据结构映射XML文件存放路径（需要确保两个库的结构相同）</param>
/// <param name="oldConfig">源数据库</param>
/// <param name="newConfig">目标数据库</param>
public static void DoMigrate(string xmlPath, BaseConfigInfo oldConfig, BaseConfigInfo newConfig, List <string> tables)
{
//导入数据
string newConnString = newConfig.DBConnectionString.Replace("{$App}", AppDomain.CurrentDomain.BaseDirectory);
IDbDriver driver = Installer.CreateDbDriver(newConfig.DBType);
using (IConnection newConn = driver.CreateConnection(newConnString))
{
if (Directory.Exists(xmlPath))
{
DirectoryInfo dir = new DirectoryInfo(xmlPath);
FileInfo[] files = dir.GetFiles("*.xml");
foreach (FileInfo file in files)
{
string xmlFile = file.FullName;
ObjectAssistant oa = new ObjectAssistant();
if (oldConfig.DBConnectionString != "")
{
oldConfig.DBConnectionString = oldConfig.DBConnectionString.Replace("{$App}", AppDomain.CurrentDomain.BaseDirectory);
oa.LoadDBConnectionString(oldConfig.DBConnectionString, oldConfig.DBDriver);
}
oa.LoadFromFile(xmlFile);
//过滤：找出两个数据库都有的表对象
IDbDriver oldDriver = Installer.CreateDbDriver(oldConfig.DBType);
IConnection oldConn = oldDriver.CreateConnection(oldConfig.DBConnectionString.Replace("{$App}", AppDomain.CurrentDomain.BaseDirectory));
List <string> objects = GetUpdateObjects(xmlFile, newConn, oldConn, tables);
if (objects.Count > 0)
{
//进行数据转换
foreach (string tpName in objects)
{
if (tpName == "")
{
continue;
}
Type tp = Type.GetType(tpName);
Type mt = typeof(MigrateObject <>);
Type gt = mt.MakeGenericType(new Type[] { tp });
IMigrateObject mo = Activator.CreateInstance(gt) as IMigrateObject;
mo.Connection = newConn;
mo.Assistant = oa;
mo.Update();
}
}
}
}
}
}
protected SessionBase(ConnectionScope connectionScope, IDbDriver dbDriver)
{
ConnectionScope = connectionScope;
DbDriver = dbDriver;
Connection = dbDriver.CreateConnection();
if (ConnectionScope == ConnectionScope.PerSession)
{
if (Log.IsDebug)
{
Log.Debug(LogMessages.Session_OpeningConnection);
}
Connection.Open();
}
}
protected SessionBase(ConnectionScope connectionScope, IDbDriver dbDriver)
{
this.ConnectionScope = connectionScope;
this.DbDriver = dbDriver;
this.Connection = dbDriver.CreateConnection();
if (this.ConnectionScope == ConnectionScope.PerSession)
{
if (Log.IsDebug)
{
Log.Debug(LogMessages.Session_OpeningConnection);
}
this.Connection.Open();
}
}
public static void ExecuteSQL(BaseConfigInfo bci, string file)
{
if (file != "" && File.Exists(file))
{
XmlDocument doc = new XmlDocument();
doc.Load(file);
foreach (XmlNode node in doc.SelectNodes("/Update/Database"))
{
IDbDriver driver = CreateDbDriver(bci.DBType);
if (driver == null)
{
continue;
}
int success = 0;
int errors = 0;
using (IConnection conn = driver.CreateConnection(bci.DBConnectionString))
{
foreach (XmlNode sub in node.SelectNodes("Sql"))
{
SqlStatement sql = new SqlStatement();
sql.CommandType = CommandType.Text;
sql.SqlClause = sub.InnerText;
driver.FormatSQL(sql);
try
{
conn.Update(sql);
success++;
}
catch (Exception ex)
{
We7.Framework.LogHelper.WriteFileLog(We7.Framework.LogHelper.sql_update,
"执行SQL：" + sql.SqlClause + "\n\t 出现错误：", ex.Message);
errors++;
continue;
}
}
}
We7.Framework.LogHelper.WriteFileLog(We7.Framework.LogHelper.sql_update, "执行完毕：", string.Format("{3}执行完毕！共执行语句{0}条，成功{1}条，失败{2}条", success + errors, success, errors, file));
}
}
}
