C# 需要IDispose方法来更新数据库
我想我需要另一种方法来打开和关闭数据库连接,因为我得到了一个锁定IIS6的错误。谢谢你的帮助 根据我所读的内容,我需要C# 需要IDispose方法来更新数据库,c#,asp.net,sql,C#,Asp.net,Sql,我想我需要另一种方法来打开和关闭数据库连接,因为我得到了一个锁定IIS6的错误。谢谢你的帮助 根据我所读的内容,我需要IDispose方法从XML更新数据库 我收到以下错误消息: StackTrace:在 System.Data.ProviderBase.DbConnectionInternal.PrePush(对象 预期所有者) 位于System.Data.ProviderBase.DbConnectionPool.PutObject(DbConnectionInternal 对象,对象拥有对
IDispose
方法从XML更新数据库
我收到以下错误消息:
StackTrace:在
System.Data.ProviderBase.DbConnectionInternal.PrePush(对象
预期所有者)位于System.Data.ProviderBase.DbConnectionPool.PutObject(DbConnectionInternal 对象,对象拥有对象)
位于System.Data.ProviderBase.DbConnectionInternal.CloseConnection(DbConnection owningObject,DbConnectionFactory连接工厂)
在System.Data.SqlClient.SqlInternalConnection.CloseConnection(DbConnection)中 owningObject,DbConnectionFactory连接工厂)
在System.Data.SqlClient.SqlConnection.Close()上 在中的ASP.chat7\u handlers\u broadcasting\u handler\u aspx.XML.Finalize()处 g:\blah.handler.aspx:第73行 代码:
公共类XML
{
sqlconnectiondbconn;
公共XML()
{
dbConn=新的SqlConnection(ConfigurationManager.ConnectionString[“LocalSqlServer”].ToString());
dbConn.Open();
}
public void add2Db(字符串表、字符串sqlRows、字符串sqlValues)
{
string sql=“插入到“+table+”(“+sqlRows+”)值(“+sqlValues+”)中”;
SqlCommand cmd=新的SqlCommand(sql,dbConn);
cmd.CommandType=CommandType.Text;
cmd.ExecuteNonQuery();
}
公共空解析XML(XmlDocument文档)
{
字符串tsLogpro=“”;
字符串sqlRows=“”;
字符串sqlValues=“”;
//选择节点:logPro
foreach(文档SelectNodes(“logPro”)中的XmlNode logPro)
{
tsLogpro=logPro.SelectSingleNode(@ts”).InnerText;
//选择子节点:logPro
foreach(logPro.ChildNodes中的XmlNode子节点)
{
//选择所有子节点
foreach(logPro.SelectNodes(child.Name)中的XmlNode节点)
{
//吵架
foreach(child.Attributes中的XmlNode行)
{
sqlRows+=rows.Name+“,”;
}
foreach(节点中的XmlNode nodeChild)
{
sqlRows+=nodeChild.Name+“,”;
}
//获取价值
foreach(child.Attributes中的XmlNode值)
{
sqlValues+=“'”+values.InnerText+“',”;
}
foreach(节点中的XmlNode nodeChild)
{
sqlValues+=“'”+nodeChild.InnerText+“',”;
}
sqlRows=“action,”+sqlRows;
sqlRows=sqlRows.Substring(0,sqlRows.Length-2);
sqlValues=“”+child.Name+”,“+sqlValues;
sqlValues=sqlValues.Substring(0,sqlValues.Length-2);
//响应。写入(“\n\n”);
//Write(sqlRows);
//响应。写入(“\n”+sqlValues);
add2Db(“fchat7_logpro”,sqlRows,sqlValues);
}
sqlValues=“”;
sqlRows=“”;
}
}
}
~XML()
{
dbConn.Close();
}
}
受保护的无效页面加载(对象发送方、事件参数e)
{
Response.Clear();
Response.ExpiresAbsolute=DateTime.Now;
AddHeader(“内容类型”、“文本/普通”);
HttpRequest请求=HttpContext.Current.request;
System.IO.Stream body=request.InputStream;
System.Text.Encoding Encoding=request.ContentEncoding;
System.IO.StreamReader reader=新的System.IO.StreamReader(正文,编码);
XmlDocument doc=新的XmlDocument();
字符串s=reader.ReadToEnd();
if(Request.Params[“action”]!=string.Empty&&Request.Params[“action”]=“test”)
{
doc.InnerXml=“”+
"" +
"" +
"" +
“客人”+
"" +
"" +
“管理员”+
"" +
"" +
“客人”+
"" +
"" +
"" +
"" +
"" +
“测试”+
"" +
"" +
“script.txt”+
"" +
"" +
"" +
"" +
"" +
"" +
"" +
"" +
"" +
"" +
"" +
"" +
"";
}
如果(!string.IsNullOrEmpty)
{
doc.InnerXml=s;
}
XML-oXML=newxml();
parseXML(doc);
答复。填写(“完成”);
Response.End();
}
/*
*
*
将ANSI_空值设置为ON
去
在上设置带引号的\u标识符
去
创建表[dbo]。[chat7_logpro](
[log_id][int]标识(1,1)不为空,
[行动][nchar](40)无效,
[ip][nchar](40)无效,
[ts][nchar](40)空,
[uid][nchar](70)空,
[用户名][nchar](70)空,
[hasCam][nchar](40)空,
[id][nchar](40)空,
[错误][nchar](250)空,
[roomI
<%@ Page language="c#" %>
<%@ Import namespace="System.Net"%>
<%@ Import namespace="System.Data"%>
<%@ Import namespace="System.Data.SqlClient"%>
<%@ Import namespace="System.IO"%>
<%@ Import namespace="System.Xml"%>
<script runat="server" language="C#">
public class XML
{
SqlConnection dbConn;
public XML()
{
dbConn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString());
dbConn.Open();
}
public void add2Db(string table, string sqlRows, string sqlValues)
{
string sql = "INSERT INTO " + table + " (" + sqlRows + ") VALUES (" + sqlValues + ")";
SqlCommand cmd = new SqlCommand(sql, dbConn);
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
}
public void parseXML(XmlDocument doc)
{
string tsLogpro = "";
string sqlRows = "";
string sqlValues = "";
//SELECT NODE: logPro
foreach (XmlNode logPro in doc.SelectNodes("logPro"))
{
tsLogpro = logPro.SelectSingleNode("@ts").InnerText;
//SELECT CHILD NODE: logPro
foreach (XmlNode child in logPro.ChildNodes)
{
//SELECT ALL CHILD NODES
foreach (XmlNode node in logPro.SelectNodes(child.Name))
{
//GET ROWS
foreach (XmlNode rows in child.Attributes)
{
sqlRows += rows.Name + ", ";
}
foreach (XmlNode nodeChild in node)
{
sqlRows += nodeChild.Name + ", ";
}
//GET VALUES
foreach (XmlNode values in child.Attributes)
{
sqlValues += "'" + values.InnerText + "', ";
}
foreach (XmlNode nodeChild in node)
{
sqlValues += "'" + nodeChild.InnerText + "', ";
}
sqlRows = "action, " + sqlRows;
sqlRows = sqlRows.Substring(0, sqlRows.Length - 2);
sqlValues = "'" + child.Name + "', " + sqlValues;
sqlValues = sqlValues.Substring(0, sqlValues.Length - 2);
//Response.Write("\n\n");
//Response.Write(sqlRows);
//Response.Write("\n" + sqlValues);
add2Db("fchat7_logpro", sqlRows, sqlValues);
}
sqlValues = "";
sqlRows = "";
}
}
}
~XML()
{
dbConn.Close();
}
}
protected void Page_Load(object sender, EventArgs e)
{
Response.Clear();
Response.ExpiresAbsolute = DateTime.Now;
Response.AddHeader("Content-type", "text/plain");
HttpRequest request = HttpContext.Current.Request;
System.IO.Stream body = request.InputStream;
System.Text.Encoding encoding = request.ContentEncoding;
System.IO.StreamReader reader = new System.IO.StreamReader(body, encoding);
XmlDocument doc = new XmlDocument();
string s = reader.ReadToEnd();
if (Request.Params["action"] != string.Empty && Request.Params["action"] == "test")
{
doc.InnerXml = "" +
"<logPro ts=\"1283351509\">" +
"<autoLogin uid=\"d5b0ef4c8c51f303ecbaed81a6e078c5\" hasCam=\"false\" ip=\"127.0.0.1\" ts=\"1283351406\" />" +
"<chatLogin hasCam=\"false\" ip=\"127.0.0.1\" ts=\"1283352053\">" +
"<userName>Guest</userName>" +
"</chatLogin>" +
"<adminLogin hasCam=\"false\" ip=\"127.0.0.1\" ts=\"1283352053\">" +
"<userName>admin</userName>" +
"</adminLogin>" +
"<guestLogin hasCam=\"false\" ip=\"127.0.0.1\" ts=\"1283352020\">" +
"<userName>guest</userName>" +
"</guestLogin>" +
"<loginResult ip=\"127.0.0.1\" id=\"1\" error=\"\" ts=\"1283351406\" />" +
"<joinRoom id=\"1\" roomID=\"z11283351417236\" ts=\"1283351417\" />" +
"<leaveRoom id=\"1\" roomID=\"room1\" ts=\"1283351426\" />" +
"<createRoom id=\"1\" ts=\"1283351417\">" +
"<roomName>test</roomName>" +
"</createRoom>" +
"<sendFile id=\"2\" receiverID=\"1\" fileID=\"1283351441141\" fileSize=\"6Kb\" ts=\"1283351441\">" +
"<fileName>script.txt</fileName>" +
"</sendFile>" +
"<acceptFile id=\"1\" senderID=\"2\" isAccept=\"true\" fileID=\"1283351441141\" ts=\"1283351444\" />" +
"<changeColor id=\"1\" color=\"6684876\" ts=\"1283351406\" />" +
"<changeAvatar id=\"1\" avatarID=\"02\" ts=\"1283351406\" />" +
"<changeStatus id=\"2\" status=\"1\" ts=\"1283351383\" />" +
"<publish id=\"1\" video=\"false\" audio=\"true\" pause=\"false\" ts=\"1283351421\" />" +
"<subscribe id=\"1\" publisherID=\"2\" roomID=\"proom2000\" ts=\"1283351998\" />" +
"<unsubscribe id=\"1\" publisherID=\"2\" roomID=\"proom2000\" ts=\"1283351998\" />" +
"<sendInvitation id=\"1\" receiverID=\"2\" roomID=\"null\" ts=\"1283351494\" />" +
"<answerInvitation id=\"2\" senderID=\"1\" roomID=\"null\" accepted=\"true\" ts=\"1283351499\" />" +
"<startRecordVideo userID=\"1\" ts=\"1283351499\" />" +
"<videoSaved userID=\"1\" fileName=\"someFile.flv\" fileSize=\"1234121234\" ts=\"1283351499\" />" +
"</logPro>";
}
else if (!string.IsNullOrEmpty(s))
{
doc.InnerXml = s;
}
XML oXML = new XML();
oXML.parseXML(doc);
Response.Write("Done");
Response.End();
}
/*
*
*
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[chat7_logpro](
[log_id] [int] IDENTITY(1,1) NOT NULL,
[action] [nchar](40) NULL,
[ip] [nchar](40) NULL,
[ts] [nchar](40) NULL,
[uid] [nchar](70) NULL,
[userName] [nchar](70) NULL,
[hasCam] [nchar](40) NULL,
[id] [nchar](40) NULL,
[error] [nchar](250) NULL,
[roomID] [nchar](70) NULL,
[roomName] [nchar](70) NULL,
[receiverID] [nchar](70) NULL,
[fileSize] [nchar](70) NULL,
[fileName] [nchar](70) NULL,
[senderID] [nchar](70) NULL,
[isAccept] [nchar](70) NULL,
[fileID] [nchar](70) NULL,
[color] [nchar](70) NULL,
[avatarID] [nchar](70) NULL,
[status] [nchar](70) NULL,
[video] [nchar](40) NULL,
[audio] [nchar](40) NULL,
[pause] [nchar](40) NULL,
[publisherID] [nchar](40) NULL,
[accepted] [nchar](40) NULL,
[userID] [nchar](40) NULL
) ON [PRIMARY]
GO
*
*/
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>blah blah</title>
</head>
<body>
<form id="Form1" method="post" runat="server"><% Page_Load(null, null); %></form>
</body>
</html>
string sql = "INSERT INTO " + ...;
using(SqlConnection dbConn = new SqlConnection(ConfigurationManager.ConnectionStrings["..."].ConnectionString)){
//create your SqlCommand
SqlCommand cmd = ...;
//THEN open your database -- keep the connection open as short as possible
dbConn.Open();
//execute the query
cmd.ExecuteNonQuery();
}
public void add2Db(string table, string sqlRows, string sqlValues)
{
string sql = "INSERT INTO " + table + " (" + sqlRows + ") VALUES (" + sqlValues + ")";
using(SqlConnection dbConn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString())
{
SqlCommand cmd = new SqlCommand(sql, dbConn);
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
}
}