C#提供正确的用法和调用
本文关键字:用法 调用 | 更新日期: 2023-09-27 18:30:06
这可能是一个新手问题,所以我会直接说出来。这是我第一次创建IDisposable类,我想确保我正确地创建了我的类,正确地调用了它,并正确地处理了它。谢谢
使用系统;使用System.Collections.Generic;使用System.Linq;使用System.Text;命名空间爬网程序{class LoggingClass{公共类LoggingDisposable:IDisposable{public void GenericLogging(字符串systemMsg,字符串SystemClass,字符串SystemSection,字符串ID,字符串FixID,字符串baseURL,字符串mysqlQueryName,字符串mysqlQuery){string Loggingall="插入tblLogs"+"set SystemMsg='"+SystemMsg.Replace("","")+"'"+",SystemClass='"+SystemClass.Replace("","")+"'"+",SystemSection="+SystemSection.Replace("","")+",ID='"+CarID.Replace("","")+"'"+",FixID='"+FixID.Replace("","")+"'"+",baseurl='"+baseurl.Replace("","")+"'"+",mysqlqueryName='"+mysqlQuery.Replace("","")+",mysqlquery='"+mysqlquery.Replace("","")+"'"+",Site='AutoTrader'"+",TimeStamp=Now()";使用(var MYSQLP=new MySQLProcessing.MySQLProcessor()){MYSQLP.MySQLInsertUpdate(Loggingall,"Loggingall");}}public void Dispose(){这处置(true);GC.SuppressFinalize(this);}受保护的虚拟void Dispose(bool Dispose){if(!this.Disposed){如果(处置){//在此处执行托管清理。}//在此处执行非托管清理。这Disposed=true;}}protected bool已处置{get;private set;}}}}
我就是这么称呼它的。
var options=new ParallelOptions();选项。最大平行度=5;Parallel.ForEach(urlTable.AsEnumerable(),选项,drow=>{
using (var logClass = new LoggingClass.LoggingDisposeable())
{
logClass.GenericLogging("ZipCode not available for this dealerL", "DealershipRequest", "checkExistingDealers", dealerID, "DealerShipZipCode",rDealerLink, "", "");
}
}</pre>
我想你打算做的是这样的事情:
public class LoggingDisposeable : IDisposable
{
MySQLProcessing MySQLP;
public LoggingDisposeable()
{
MYSQLP = new MySQLProcessing.MySQLProcessor();
}
public void GenericLogging(string systemMsg, string SystemClass, string SystemSection, string ID, string FixID, string baseURL, string mysqlQueryName, string mysqlQuery)
{
string Loggingall = " insert into tblLogs " +
"set SystemMsg='" + systemMsg.Replace("'", "''") + "'" +
",SystemClass = '" + SystemClass.Replace("'", "''") + "'" +
",SystemSection = '" + SystemSection.Replace("'", "''") +
",ID = '" + CarID.Replace("'", "''") + "'" +
",FixID = '" + FixID.Replace("'", "''") + "'" +
",baseurl = '" + baseURL.Replace("'", "''") + "'" +
",mysqlqueryName = '" + mysqlQuery.Replace("'", "''") +
",mysqlquery = '" + mysqlQuery.Replace("'", "''") + "'" +
",Site = 'AutoTrader'" +
",TimeStamp = Now()";
MYSQLP.MySQLInsertUpdate(Loggingall, "Loggingall");
}
public void Dispose()
{
MYSQLP.Dispose();
}
}
然后这样使用:
using (var logClass = new LoggingDisposeable())
{
var options = new ParallelOptions();
options.MaxDegreeOfParallelism = 5;
Parallel.ForEach(urlTable.AsEnumerable(), options, drow =>
{
logClass.GenericLogging("ZipCode not available for this dealerL", "DealershipRequest", "checkExistingDealers", dealerID, "DealerShipZipCode", rDealerLink, "", "");
});
}