我有一个问题，我的应用程序在开发环境中运行良好，但是当部署给客户时，它只是挂起而不会触发任何异常。
为了部署，我必须将登录详细信息（已删除）和 sql 语句更改为显示的内容，我认为这可能是问题，但我希望任何 sql 语法错误都会引发异常。我已经排除了无限循环的可能性（我认为）。
我知道的唯一可能性是使用多线程并希望问题得到解决，但我没有那种时间，除非我可以确定这是解决方案。
坦率地说，我很茫然，任何关于在问题上提取任何线索的提示/建议都是适用的。
这是代码：
but_exit.Enabled = false;
but_manual.Enabled = false;
//switch off gui timer to allow process messages
guiTimer.Enabled = false;
lbl_dyn_status.Text = "Finding records...";
/*create connection resources*/
/*MYSQl*/
//connect to mysql
/*
*/
var db_name = "";
var db_host = "";
var db_user = "";
var db_password = "";
var connectionString = "SERVER=" + db_host + ";" + "DATABASE=" +
db_name + ";" + "UID=" + db_user + ";" + "PASSWORD=" + db_password + ";";
MySqlConnection mysql_con = new MySqlConnection(connectionString);
//Create a list to store the result
List<string>[] mysql_idlist = new List<string>[1];
mysql_idlist[0] = new List<string>();
/*MSSQL*/
//connect to mssyql
db_user = "";
db_password = "";
db_name = "";
db_host = "";
System.Data.SqlClient.SqlConnection mssql_con = new System.Data.SqlClient.SqlConnection();
mssql_con.ConnectionString = "SERVER=" + db_host + ";" + "DATABASE=" +
db_name + ";" + "UID=" + db_user + ";" + "PASSWORD=" + db_password + ";";
//Create a list to store the result
List<string>[] mssql_idlist = new List<string>[2];
mssql_idlist[0] = new List<string>();
mssql_idlist[1] = new List<string>();
/*Processing logic*/
//first pass on mysql
try
{
mysql_con.Open();
//get id list
string mysql_idlist_query = "SELECT product_code FROM cscart_products";
MySqlCommand cmd = new MySqlCommand(mysql_idlist_query, mysql_con);
//Create a data reader and Execute the command
MySqlDataReader dataReader = cmd.ExecuteReader();
//Read the data and store them in the list
while (dataReader.Read())
{
mysql_idlist[0].Add(dataReader["product_code"] + "");
}
//close Data Reader
dataReader.Close();
//test content
/*foreach (var id in mysql_idlist[0]) {
lbl_dev.Text = lbl_dev.Text + id + " - ";
}*/
//close mysql connection
mysql_con.Close();
}
catch (MySqlException ex)
{
switch (ex.Number)
{
case 0:
lbl_dev.Text = "(mysql) Cannot connect to server. Contact administrator";
break;
case 1045:
lbl_dev.Text = "(mysql) Invalid username/password, please try again";
break;
default:
lbl_dev.Text = "Unknown mysql error.";
break;
}
}
catch
{
lbl_dev.Text = "first mysql error";
}
//first pass on mssql
try
{
mssql_con.Open();
//get id list
//protect for duplicate skus
string mssql_idlist_query = "SELECT substring (RIGHT('00'+ CAST (JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar ), patindex('%[^0]%',RIGHT('00'+ CAST (JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar )), 10) as SKU, ID FROM Denton_multi.dbo.JH_TblFurniture6Colour WHERE substring (RIGHT('00'+ CAST (JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar ), patindex('%[^0]%',RIGHT('00'+ CAST (JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar )), 10) IN (SELECT substring(RIGHT('00'+ CAST (JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar ), patindex('%[^0]%',RIGHT('00'+ CAST (JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar )), 10))";
SqlCommand cmd = new SqlCommand(mssql_idlist_query, mssql_con);
//Create a data reader and Execute the command
SqlDataReader dataReader = cmd.ExecuteReader();
//Read the data and store them in the list
while (dataReader.Read())
{
mssql_idlist[0].Add(dataReader["SKU"] + "");
mssql_idlist[1].Add(dataReader["ID"] + "");
}
//close Data Reader
dataReader.Close();
mssql_con.Close();
}
catch (SqlException ex)
{
switch (ex.Number)
{
case 0:
lbl_dev.Text = "(mssql) Cannot connect to server. Contact administrator";
break;
case 1045:
lbl_dev.Text = "(mssql) Invalid username/password, please try again";
break;
default:
lbl_dev.Text = "Unknown mssql error. " + ex.Number; ;
break;
}
}
catch
{
lbl_dev.Text = "first mssql error";
}
//compare lists and get ids that need inserting in mysql
List<string>[] insert_idlist = new List<string>[10];
insert_idlist[0] = new List<string>();//product code
insert_idlist[1] = new List<string>();//short description
insert_idlist[2] = new List<string>();//full description
insert_idlist[3] = new List<string>();//product id
insert_idlist[4] = new List<string>();//weight
insert_idlist[5] = new List<string>();//rrp price
insert_idlist[6] = new List<string>();//our price
insert_idlist[7] = new List<string>();//categories
insert_idlist[8] = new List<string>();//denton side id
insert_idlist[9] = new List<string>();//insert / update tag
List<string> dup_list = new List<string>();
var about_to_insert = 0;
foreach (var id in mssql_idlist[0])
{
if (mysql_idlist[0].Contains(id) == false)
{
//insert list
insert_idlist[0].Add(id);
insert_idlist[9].Add("i");
}
else
{
//update_list
insert_idlist[0].Add(id);
insert_idlist[9].Add("u");
}
}
//construct full mssql dataset for insert items
//final pass on mssql
try
{
mssql_con.Open();
foreach (var id in insert_idlist[0])
{
//top 1 for duplicate removal
var mssql_select = "SELECT Denton_Multi.dbo.tblproductcategorys.*, Denton_Multi.dbo.JH_TblFurniture6Colour.*, substring(RIGHT('00'+ CAST (Denton_Multi.dbo.JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar ), patindex('%[^0]%',RIGHT('00'+ CAST (Denton_Multi.dbo.JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar )), 10) as SKU, suppliers.[supplier name], (select top 1 [item description] from Denton_Multi.dbo.JH_TblFurniture4item where [supplier code] = Denton_Multi.dbo.JH_TblFurniture6Colour.[supplier code] and [item code] = Denton_Multi.dbo.JH_TblFurniture6Colour.[item code] And [Delete] = 0) as [item description], (select top 1 [model description] from Denton_Multi.dbo.JH_TblFurniture3Range where [supplier code] = Denton_Multi.dbo.JH_TblFurniture6Colour.[supplier code] and [model code] = Denton_Multi.dbo.JH_TblFurniture6Colour.[model code]) as [range description] FROM Denton_Multi.dbo.JH_TblFurniture6Colour join Denton_Multi.dbo.tblproductcategorys on Denton_Multi.dbo.tblproductcategorys.CategoryID = Denton_Multi.dbo.JH_TblFurniture6Colour.[product group] join Denton_Multi.dbo.Suppliers on Denton_Multi.dbo.Suppliers.[supplier code] = Denton_Multi.dbo.JH_TblFurniture6Colour.[supplier code] WHERE ExportWeb = 1 AND substring(RIGHT('00'+ CAST (Denton_Multi.dbo.JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar ), patindex('%[^0]%',RIGHT('00'+ CAST (Denton_Multi.dbo.JH_TblFurniture6Colour.[product group] AS varchar), 2) + CAST( ID AS Varchar )), 10) = '"+id+"'";
SqlCommand cmd = new SqlCommand(mssql_select, mssql_con);
//Create a data reader and Execute the command
SqlDataReader dataReader = cmd.ExecuteReader();
//Read the data and store them in the list
while (dataReader.Read())
{
insert_idlist[1].Add(dataReader["Supplier Name"] + " " + dataReader["Range Description"] + " " + dataReader["Item Description"]);
insert_idlist[3].Add(dataReader["Sale Price"] + "");
insert_idlist[2].Add(dataReader["WebDesc"] + "");
//insert_idlist[3].Add(dataReader["id"] + "");removed
insert_idlist[4].Add(dataReader["WebDimensions"] + "");
insert_idlist[5].Add(dataReader["RRP"] + "");
insert_idlist[6].Add(dataReader["Normal Price"] + "");
insert_idlist[7].Add("482"); //add me
insert_idlist[8].Add(dataReader["ID"] + "");
about_to_insert = about_to_insert + 1;
}
lbl_dyn_status.Text = "Record 0 of " + about_to_insert + "updated.";
dataReader.Close();
}
//close mysql connection
mssql_con.Close();
}
catch (SqlException ex)
{
switch (ex.Number)
{
case 0:
lbl_dev.Text = "(mssql) Cannot connect to server. Contact administrator";
break;
case 1045:
lbl_dev.Text = "(mssql) Invalid username/password, please try again";
break;
default:
lbl_dev.Text = "Unknown mssql error. "+ex.Number;
break;
}
}
catch
{
lbl_dev.Text = "second mssql error";
}
//insert data in mysql db
try
{
//final mysql pass
var inc = insert_idlist[0].Count() - 1;
if (about_to_insert > 0 && insert_idlist[0][0].Count() > 0)
{
mysql_con.Open();
for (int x = 0; x <= inc; x++)
{
int pid = 0;
if (insert_idlist[9][x] == "u")
{
//get web side product_id for updates
var sku = insert_idlist[0][x];
var get_id = "SELECT product_id FROM cscart_products WHERE product_code = '" + sku + "' LIMIT 1";
MySqlCommand do_get_id = new MySqlCommand(get_id, mysql_con);
MySqlDataReader rpid = do_get_id.ExecuteReader();
//get id
while (rpid.Read())
{
pid = Convert.ToInt32(rpid["product_id"]);
}
rpid.Close();
}
/*main record*/
var mysql_product = "";
if (insert_idlist[9][x] == "u")
{
mysql_product = "UPDATE cscart_products SET product_code = @product_code, list_price = @rrp, status='D' WHERE product_id = '" + pid + "'";
}
else
{
mysql_product = "INSERT INTO cscart_products (product_code, list_price, status) VALUES (@product_code, @rrp, 'D')";
}
MySqlCommand product_insert = new MySqlCommand(mysql_product, mysql_con);
product_insert.Parameters.Add(new MySqlParameter("@product_code", insert_idlist[0][x]));
product_insert.Parameters.Add(new MySqlParameter("@rrp", insert_idlist[5][x]));
product_insert.ExecuteNonQuery();
var insertid = product_insert.LastInsertedId;
//get mssql id records
var sql_ID = insert_idlist[8][x];
var stock_sql = "SELECT * FROM dbo.TblSupplierDelivery INNER JOIN dbo.TblManagerStockListings ON dbo.TblSupplierDelivery.ID = dbo.TblManagerStockListings.ID WHERE dbo.TblSupplierDelivery.ID = '" + sql_ID + "'";
mssql_con.Open();
SqlCommand cmd = new SqlCommand(stock_sql, mssql_con);
//Create a data reader and Execute the command
SqlDataReader dataReader = cmd.ExecuteReader();
//insert extended data fields
while (dataReader.Read())
{
var delivery_time = dataReader["Delivery Weeks"];
var stock_quant = Convert.ToInt16(dataReader["WHTotal"]) - Convert.ToInt16(dataReader["TotalAv"]);
var sale_price = insert_idlist[3][x];
var prod_ex = "";
if (insert_idlist[9][x] == "u")
{
prod_ex = "UPDATE cscart_oo_product_extend SET product_id = '" + pid + "', transfer_date = now(), sale_price = '" + sale_price + "', stock_due_date = '" + delivery_time + "' WHERE product_id = '" + pid + "'";
}
else
{
prod_ex = "INSERT INTO cscart_oo_product_extend (product_id, transfer_date, sale_price, stock_due_date) VALUES ('" + insertid + "', now(), '" + sale_price + "', '" + delivery_time + "')";
}
MySqlCommand product_ex_insert = new MySqlCommand(prod_ex, mysql_con);
product_ex_insert.ExecuteNonQuery();
//this is always an update
if (Convert.ToString(insertid) == "0")
{
insertid = pid;
}
var stock_insert = "UPDATE cscart_products SET amount = '" + stock_quant + "' WHERE product_id = '" + insertid + "'";
MySqlCommand product_stock_insert = new MySqlCommand(stock_insert, mysql_con);
product_stock_insert.ExecuteNonQuery();
}
//close Data Reader
dataReader.Close();
mssql_con.Close();
/*description*/
var mysql_desc = "";
if (insert_idlist[9][x] == "u")
{
mysql_desc = "UPDATE cscart_product_descriptions SET product_id = @id, product = @product_name, full_description = @product_desc WHERE product_id = @id";
}
else
{
mysql_desc = "INSERT INTO cscart_product_descriptions (product_id, product, full_description) VALUES (@id, @product_name, @product_desc)";
}
MySqlCommand product_desc = new MySqlCommand(mysql_desc, mysql_con);
product_desc.Parameters.Add(new MySqlParameter("@id", insertid));
product_desc.Parameters.Add(new MySqlParameter("@product_name", insert_idlist[1][x]));
product_desc.Parameters.Add(new MySqlParameter("@product_desc", insert_idlist[2][x]));
product_desc.ExecuteNonQuery();
//category
var mysql_cat = "";
if (insert_idlist[9][x] == "i")
{
mysql_cat = "INSERT INTO cscart_products_categories (product_id, category_id) VALUES (@id, @cat_id)";
MySqlCommand product_cat = new MySqlCommand(mysql_cat, mysql_con);
product_cat.Parameters.Add(new MySqlParameter("@id", insertid));
product_cat.Parameters.Add(new MySqlParameter("@cat_id", insert_idlist[7][x]));
product_cat.ExecuteNonQuery();
}
//price
var mysql_price = "";
if (insert_idlist[9][x] == "u")
{
mysql_price = "UPDATE cscart_product_prices SET product_id = @id, price = @our_price, lower_limit = '1' WHERE product_id = @id";
}
else
{
mysql_price = "INSERT INTO cscart_product_prices (product_id, price, lower_limit) VALUES (@id, @our_price, '1')";
}
MySqlCommand product_price = new MySqlCommand(mysql_price, mysql_con);
product_price.Parameters.Add(new MySqlParameter("@id", insertid));
product_price.Parameters.Add(new MySqlParameter("@our_price", insert_idlist[6][x]));
product_price.ExecuteNonQuery();
lbl_dyn_status.Text = "Record " + x + " of " + about_to_insert + "updated.";
}
mysql_con.Close();
}
}
catch
{
lbl_dev.Text = "upload error";
}
//reset gui timer for next idle period
minutes_left = 10;
lbl_dyn_status.Text = "Time until next automatic update: " + minutes_left + " minutes.";
guiTimer.Start();
but_exit.Enabled = true;
but_manual.Enabled = true;
}