[不是问题]我正在尝试创建一个使用MySQL的VB.NET Web应用程序，我目前正在使用经典的asp并需要一些指导 [英] [Not a question] I am trying to create a VB.NET web application that uses MySQL, I am currently using classic asp and need some guidance
问题描述
我正在尝试创建一个使用MySQL的VB.NET Web应用程序，我目前正在使用经典的asp并需要一些指导。
刚才我包括db_inc每个asp页面的.asp文件，我可以简单地使用以下子程序来提取数据而无需为每个页面重新创建ado /连接字符串。
基本上我正在寻找使用mySQL在VB.NET中实现非常类似的方法帮助
调用 GetFromDataBase（ SELECT * FROM Users WHERE User_Id = 1，oRsTemp1）
调用 GetFromDatabasePerPage（ SELECT * FROM Users WHERE User_Id = 1，oRsTemp1）#incisheds paging
调用 UpdateDataBase（ 更新我们ers SET name ='test'WHER User_Id = 1）
例子
< pre lang =vb> mySQL = SELECT name FROM users;
调用 GetFromDataBase（mySQL，oRsTemp1）
如果 不 oRsTemp1.EOF 然后
执行 while 不 oRsTemp1.EOF
response.Write oRsTemp1（ 名称）
I am trying to create a VB.NET web application that uses MySQL, I am currently using classic asp and need some guidance. 这篇关于[不是问题]我正在尝试创建一个使用MySQL的VB.NET Web应用程序，我目前正在使用经典的asp并需要一些指导的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
< pre lang =HTML> <％
' ************
'执行数据库的功能
' ************ *
' ------------------------------------ -----------
' 商店连接字符串
' -----------------------------------------------
Dim oConnectionString
blnShowDebugStatsQueries = True
blnShowDebugStats = True
blnShowDebugStatsQueries = True
oConnectionString = DSN = test; DATABASE = testdb; Persist Security Info = True; Pooling = False
< span class =code-string>' -------------------------- ---------------------
'创建数据库连接
' -------------------------------------- ---------
如果不是blnInstall那么
设置oDataConn = Server.CreateObject（ADODB.Connection）
oDataConn.Open oCo nnectionString
设置oCommand = Server.CreateObject（ADODB.Command）
设置oRsTemp1 = Server.CreateObject（ADODB.Recordset）
设置oRsTemp2 = Server.CreateObject（ADODB.Recordset ）
设置oRsTemp3 = Server.CreateObject（ADODB.Recordset）
结束如果
strDateDelimiter ='
numCursorType = 3
'------------------ -----------------------------
'SET EXECUTION STATS
'执行计数器。这对调试统计数据非常有用
'--------------------------------------- --------
Dim numTotalExecuteRS，numTotalExecuteScalar，numTotalExecuteNonQuery，numQueryExecutionTime，strQueryBuildup
numTotalExecuteRS = 0：numTotalExecuteScalar = 0：numTotalExecuteNonQuery = 0
numQueryExecutionTime = 0
QueryBuildup =
'------- ----------------------------------------
'调用错误报告的函数
'--------------------------------------------- -
Sub ReportQueryError（Query，strErrorDescription）
如果blnUpgrade = true则
'什么都不做
否则
'关闭我们可能在的任何标签
response.Write< div id = dbtrappederror > < / textarea的 > < / 选择 >
response.Write < div style = 宽度：80％; FONT-FAMILY：宋体;字体大小：12像素;字体重量：正常; background-color：#eeeeee;保证金：10月10日10pt 10pt 10pt;填充：20pt 20pt 20pt 20pt; border：1pt solid black >
response.Write< p style = font-weight：bold >执行错误以下查询和页面执行已终止。< / p >
response.Write< p style = font-family：courier new ;字体大小：14px的;颜色：＃800000 > & Query& < / p >
回复。写< p> 错误说明： & strErrorDescription& < / p >
response.write< p> 错误页面： & Request.ServerVariables（ URL ）& < / p >
response.write< p> 查询字符串：< br /> ;< br /> & Request.QueryString& < / p >
response.Write < / div > < / div >
Call EndPage（）
response.end
结束if
End Sub
'--- --------------------------------------------
'执行查询，并记录记录集
'填写结果
'----------------------------- ------------------
Sub GetFromDataBase（Query，rsTemp）
'开始错误捕获
如果不是（blnDoingTransaction或blnDoingCallback）然后On Error Resume Next
'启动查询执行的计时器
numSt artTime =计时器
'执行查询
oCommand.CommandText =查询
oCommand.CommandType = 1
设置oCommand.ActiveConnection = oDataConn
rsTemp.CursorLocation = 3
rsTemp.Open oCommand ,, 1，numCursorType
'递增计数和查询时间
numQueryExecutionTime = numQueryExecutionTime +（Timer - numStartTime）
numTotalExecuteRS = numTotalExecuteRS + 1
QueryBuildup = QueryBuildup& < li> & WriteSafe（查询）& < br /> ExecuteRS - 时间： &回合（计时器 - numStartTime，2）* 100& ms < br />< br /> < / li >
'报告错误，结束错误捕获
if err.Description<> 而不是blnDoingTransaction然后调用ReportQueryError（Query，err.Description）
如果不是（ blnDoingTransaction或blnDoingCallback）然后出错goto 0
End Sub
'---------------------- -------------------------
'执行非查询 - 即返回
'没有结果（INSERT，更新）
'------------------------------------------- ----
Sub UpdateDataBase（查询）
'启动错误捕获
如果不是（blnDoingTransaction或blnDoingCallback）然后On Error Resume Next
'启动查询执行计时器
numStartTime =计时器
'执行查询
oDataConn.Execute（查询）
'递增计数和查询时间
numQueryExecutionTime = numQueryExecutionTime +（Timer - numStartTime）
numTotalExecuteNonQuery = numTotalExecuteNonQuery + 1
QueryBuildup = QueryBuildup& < li> & WriteSafe（查询）& < br /> ExecuteNonQuery - 时间： &回合（计时器 - numStartTime，2）* 100& ms < br />< br /> < / li >
'报告错误，结束错误捕获
if err.Description<> 而不是blnDoingTransaction然后调用ReportQueryError（Query，err.Description）
如果不是（ blnDoingTransaction或blnDoingCallback）然后出错goto 0
End Sub
'-------------------------- ---------------------
'执行查询，并记录记录集
'填充结果
' - ---------------------------------------------
Sub GetFromDatabasePerPage（Query，rsTemp）
'启动错误捕获
如果不是（blnDoingTransaction或blnDoingCallback）然后On Error Resume Next
'启动查询执行的计时器
numStartTime =定时器
'执行查询
oCommand.CommandText =查询
oCommand.CommandType = 1
设置oCommand.ActiveConnection = oDataConn
rsTemp .CursorLocation = 3
rsTemp.Open oCommand ,, 1，numCursorType
'递增计数和查询时间
numQueryExecutionTime = numQueryExecutionTime +（Time r - numStartTime）
numTotalExecuteRS = numTotalExecuteRS + 1
QueryBuildup = QueryBuildup& < li> & WriteSafe（查询）& < br /> ExecuteRS - 时间： &回合（计时器 - numStartTime，2）* 100& ms < br />< br /> < / li >
'报告错误，结束错误捕获
if err.Description<> 而不是blnDoingTransaction然后调用ReportQueryError（Query，err.Description）
如果不是（ blnDoingTransaction或blnDoingCallback）然后出错goto 0
End Sub
'---------------------- -------------------------
'这个子关闭所有连接。应该在
'调用每个页面的底部，之前和页面重定向
'-------------------------- ---------------------
Sub EndPage（）
'关闭所有数据库内容
oDataConn.Close
set oRsTemp1 = nothing
set oRsTemp2 = nothing
set oRsTemp3 = nothing
set oCommand = nothing
set oDataConn = nothing
'在页面底部显示调试统计信息
'如果blnShowDebugStats则
'结束脚本执行计时器
numScriptExecutionTime =计时器 - numScriptExecutionStartTime
response.Write < div style = text-align：left; width：600px; font-family：verdana; font-size：12px; font-weight：normal; background-color：#eeeeee; margin：10pt 10pt 10pt 10pt; padding：20pt 20pt 20pt 20pt; border：1pt solid black >
response.write 执行的总查询次数： & numTotalExecuteRS + numTotalExecuteScalar + numTotalExecuteNonQuery& < br />
response.write记录集： & numTotalExecuteRS& < br />
response.write标量： & numTotalExecuteScalar& < br />
response.write Nonquerys： & numTotalExecuteNonQuery& < br />
response.Write< br />
response.Write 总页面执行时间：< span class =code-string> & round（numScriptExecutionTime，2）* 100& ms < br />
response.Write查询： & round（numQueryExecutionTime，2）* 100& ms< br />
response.Write脚本： & round（numScriptExecutionTime - numQueryExecutionTime，2）* 100& ms< br />
response.Write< br />
'显示已执行
'的所有查询如果blnShowDebugStatsQueries然后
response.Write 执行的查询：< br />
response.Write< span style = font-size：11px; font-family：courier new ; >< ul> & QueryBuildup& < / ul > < / span >
'结束如果
response.Write < / div >
'结束如果
结束次级
mySQL = SELECT name FROM users;
调用GetFromDataBase（mySQL，oRsTemp1）
如果不是oRsTemp1.EOF那么
请勿执行oRsTemp1.EOF
response.Write oRsTemp1（ name ）
oRsTemp1.MoveNext
循环
结束如果
oRsTemp1.Close
Cal l EndPage（）
％> 我认为你首先需要的是拥有一个基本的了解ASP.Net。 ASP.Net和ASP经典之间存在很多差异。获取一本书，或为初学者阅读一些教程。以下是您可以查看的许多链接中的一些。
初学者漫步 - 网站开发 [ ^ ]
http://www.asp.net / [ ^ ]
Just now I include db_inc.asp file for each asp page and I can simply use the following subroutines to pull data without needing to recreate ado/connection string for each page.
Basically I am looking for some help to implement a very similar approach in VB.NET using the mySQL
Call GetFromDataBase("SELECT * FROM Users WHERE User_Id = 1", oRsTemp1)
Call GetFromDatabasePerPage("SELECT * FROM Users WHERE User_Id = 1", oRsTemp1) # incudes paging
Call UpdateDataBase("UPDATE users SET name=’test’ WHERE User_Id = 1")
Example
mySQL = " SELECT name FROM users;"
Call GetFromDataBase(mySQL, oRsTemp1)
If Not oRsTemp1.EOF Then
Do While Not oRsTemp1.EOF
response.Write oRsTemp1("name")
<%
'***********************************************
'FUNCTIONS TO EXECUTE AGAINST THE DATABASE
'***********************************************
'-----------------------------------------------
' Store Connection String
'-----------------------------------------------
Dim oConnectionString
blnShowDebugStatsQueries = True
blnShowDebugStats = True
blnShowDebugStatsQueries = True
oConnectionString = "DSN=test;DATABASE=testdb;Persist Security Info=True;Pooling=False"
'-----------------------------------------------
' CREATE DATABASE CONNECTION
'-----------------------------------------------
If Not blnInstall then
Set oDataConn = Server.CreateObject("ADODB.Connection")
oDataConn.Open oConnectionString
Set oCommand = Server.CreateObject("ADODB.Command")
Set oRsTemp1 = Server.CreateObject("ADODB.Recordset")
Set oRsTemp2 = Server.CreateObject("ADODB.Recordset")
Set oRsTemp3 = Server.CreateObject("ADODB.Recordset")
End If
strDateDelimiter = "'"
numCursorType = 3
'-----------------------------------------------
' SET EXECUTION STATS
' Counters for execution. This is useful for debug stats
'-----------------------------------------------
Dim numTotalExecuteRS, numTotalExecuteScalar, numTotalExecuteNonQuery, numQueryExecutionTime, strQueryBuildup
numTotalExecuteRS = 0: numTotalExecuteScalar = 0: numTotalExecuteNonQuery = 0
numQueryExecutionTime = 0
QueryBuildup = ""
'-----------------------------------------------
'Functions called for error reporting
'-----------------------------------------------
Sub ReportQueryError(Query, strErrorDescription)
If blnUpgrade = true then
'Do nothing
Else
'Close any tags we may be in
response.Write "<div id=""dbtrappederror""></textarea></select>"
response.Write "<div style=""width: 80%; font-family:verdana; font-size:12px; font-weight:normal; background-color: #eeeeee; margin: 10pt 10pt 10pt 10pt; padding: 20pt 20pt 20pt 20pt; border: 1pt solid black"">"
response.Write "<p style=""font-weight: bold"">An error occurred executing the following query, and page execution has been terminated.</p>"
response.Write "<p style=""font-family:courier new; font-size:14px; color:#800000"">" & Query & "</p>"
response.write "<p>Error Description : " & strErrorDescription & "</p>"
response.write "<p>Page of error : " & Request.ServerVariables("URL") & "</p>"
response.write "<p>Query String : <br /><br />" & Request.QueryString & "</p>"
response.Write "</div></div>"
Call EndPage()
response.end
End if
End Sub
'-----------------------------------------------
' Executes the query, and records the recordset
' filled with the results
'-----------------------------------------------
Sub GetFromDataBase(Query, rsTemp)
'Start error trapping
If Not (blnDoingTransaction Or blnDoingCallback) Then On Error Resume Next
'Start the timer for query execution
numStartTime = Timer
'Execute query
oCommand.CommandText = Query
oCommand.CommandType = 1
Set oCommand.ActiveConnection = oDataConn
rsTemp.CursorLocation = 3
rsTemp.Open oCommand, , 1, numCursorType
'Increment count and query time
numQueryExecutionTime = numQueryExecutionTime + (Timer - numStartTime)
numTotalExecuteRS = numTotalExecuteRS + 1
QueryBuildup = QueryBuildup & "<li>" & WriteSafe(Query) & "<br />ExecuteRS - Time: " & Round(Timer - numStartTime, 2) * 100 & "ms<br /><br /></li>"
'Report error, end error trapping
if err.Description <> "" and not blnDoingTransaction then Call ReportQueryError(Query, err.Description)
if not (blnDoingTransaction or blnDoingCallback) then on error goto 0
End Sub
'-----------------------------------------------
'Executes a non-query - i.e. one that returns
'no results (INSERT, UPDATE)
'-----------------------------------------------
Sub UpdateDataBase(Query)
'Start error trapping
if not (blnDoingTransaction or blnDoingCallback) then On Error Resume Next
'Start the timer for query execution
numStartTime = Timer
'Execute query
oDataConn.Execute(Query)
'Increment count and query time
numQueryExecutionTime = numQueryExecutionTime + (Timer - numStartTime)
numTotalExecuteNonQuery = numTotalExecuteNonQuery + 1
QueryBuildup = QueryBuildup & "<li>" & WriteSafe(Query) & "<br />ExecuteNonQuery - Time: " & Round(Timer - numStartTime, 2) * 100 & "ms<br /><br /></li>"
'Report error, end error trapping
if err.Description <> "" and not blnDoingTransaction then Call ReportQueryError(Query, err.Description)
if not (blnDoingTransaction or blnDoingCallback) then on error goto 0
End Sub
'-----------------------------------------------
' Executes the query, and records the recordset
' filled with the results
'-----------------------------------------------
Sub GetFromDatabasePerPage(Query, rsTemp)
'Start error trapping
if not (blnDoingTransaction or blnDoingCallback) then On Error Resume Next
'Start the timer for query execution
numStartTime = Timer
'Execute query
oCommand.CommandText = Query
oCommand.CommandType = 1
Set oCommand.ActiveConnection = oDataConn
rsTemp.CursorLocation = 3
rsTemp.Open oCommand, , 1, numCursorType
'Increment count and query time
numQueryExecutionTime = numQueryExecutionTime + (Timer - numStartTime)
numTotalExecuteRS = numTotalExecuteRS + 1
QueryBuildup = QueryBuildup & "<li>" & WriteSafe(Query) & "<br />ExecuteRS - Time: " & Round(Timer - numStartTime, 2) * 100 & "ms<br /><br /></li>"
'Report error, end error trapping
if err.Description <> "" and not blnDoingTransaction then Call ReportQueryError(Query, err.Description)
if not (blnDoingTransaction or blnDoingCallback) then on error goto 0
End Sub
'-----------------------------------------------
' This sub closes all the connections. Should be called at
' the bottom of everypage, and before and page redirect
'-----------------------------------------------
Sub EndPage()
'Close all database stuff
oDataConn.Close
set oRsTemp1 = nothing
set oRsTemp2 = nothing
set oRsTemp3 = nothing
set oCommand = nothing
set oDataConn = nothing
'Show debug stats at bottom of page
'If blnShowDebugStats then
'End script execution timer
numScriptExecutionTime = Timer - numScriptExecutionStartTime
response.Write "<div style=""text-align: left; width: 600px; font-family:verdana; font-size:12px; font-weight:normal; background-color: #eeeeee; margin: 10pt 10pt 10pt 10pt; padding: 20pt 20pt 20pt 20pt; border: 1pt solid black"">"
response.write "Total Querys Executed : " & numTotalExecuteRS + numTotalExecuteScalar + numTotalExecuteNonQuery & "<br />"
response.write "Recordsets : " & numTotalExecuteRS & "<br />"
response.write "Scalars : " & numTotalExecuteScalar & "<br />"
response.write "Nonquerys : " & numTotalExecuteNonQuery & "<br />"
response.Write "<br />"
response.Write "Total Page Execution Time : " & round(numScriptExecutionTime, 2) * 100 & "ms<br />"
response.Write "queries : " & round(numQueryExecutionTime, 2) * 100 & "ms<br />"
response.Write "scripts : " & round(numScriptExecutionTime - numQueryExecutionTime, 2) * 100 & "ms<br />"
response.Write "<br />"
'Show all the queries that have executed
'If blnShowDebugStatsQueries then
response.Write "Queries Executed:<br />"
response.Write "<span style=""font-size: 11px; font-family: courier new;""><ul>" & QueryBuildup & "</ul></span>"
'End If
response.Write "</div>"
'end if
End Sub
mySQL = " SELECT name FROM users;"
Call GetFromDataBase(mySQL, oRsTemp1)
If Not oRsTemp1.EOF Then
Do While Not oRsTemp1.EOF
response.Write oRsTemp1("name")
oRsTemp1.MoveNext
Loop
End If
oRsTemp1.Close
Call EndPage()
%>
I think what you need first is to have a basic understanding of ASP.Net. There are many differences between ASP.Net and ASP classic. Get a book, or read some tutorials for beginners. Here are just some of the many links that you can check.
Beginner's Walk - Web Development[^]
http://www.asp.net/[^]
