快速写入Xml文件

Posted 2020-10-15 涂山吕吕

我们在做一些操作的时候会需要生成日志，Xml文件就是我们常用的一种日志文件。

普通操作Xml文件的代码遇到大数据量的话就很慢了。

用这个生成Xml文件的话，即使数据量很大，也很快

 1     private void WriteXml(BindingList<Model.WebServiceLog> listwebservicelog, string XName)
 2         {
 3             DateTime dtNow = Globas.Globas.DtNowTime; ;
 4             string dateString = dtNow.Year.ToString();
 5             dateString += dtNow.Month.ToString().Length < 2 ? ("0" + dtNow.Month.ToString()) : (dtNow.Month.ToString());
 6             dateString += dtNow.Day.ToString().Length < 2 ? ("0" + dtNow.Day.ToString()) : (dtNow.Day.ToString());
 7 
 8             string filePath = ConfigurationManager.AppSettings["path"];
 9             filePath = filePath.EndsWith(@"\") ? filePath : (filePath + @"\");
10             filePath = filePath + dateString;
11             filePath = filePath.EndsWith(@"\") ? filePath : (filePath + @"\");
12 
13             if (Directory.Exists(filePath) == false)
14             {
15                 Directory.CreateDirectory(filePath);//判断该路径是否存在，不存在则创建该路径文件夹
16             }
17 
18             filePath = filePath + XName + DateTime.Now.ToString("yyyyMMdd") + ".xml";
19             String filename = String.Concat(filePath);
20             using (StreamWriter sw = new StreamWriter(filename, true, System.Text.Encoding.GetEncoding("UTF-8")))
21             {
22                 XmlTextWriter xmlWriter = new XmlTextWriter(sw);
23                 xmlWriter.Formatting = Formatting.Indented;
24                 xmlWriter.WriteStartDocument();
25                 xmlWriter.WriteStartElement("Logs");
26 
27                 foreach (Model.WebServiceLog webservicelog in listwebservicelog)
28                 {
29                     xmlWriter.WriteStartElement("Log");
30                     xmlWriter.WriteElementString("UseDate", webservicelog.UseDate);
31                     xmlWriter.WriteElementString("Method", webservicelog.Method);
32                     xmlWriter.WriteElementString("Parameter", webservicelog.Parameter);
33                     xmlWriter.WriteElementString("UseOrReturn", webservicelog.UseOrReturn);
34                     // close contact </contact> 
35                     xmlWriter.WriteEndElement();
36                 }
37                 // close contacts </contact> 
38                 xmlWriter.WriteEndElement();
39                 xmlWriter.WriteEndDocument();
40                 xmlWriter.Close();
41             }
42         }

调用方式：

1 WriteXml(listWebservice, "Info_");