如何读取超大XML文件-Asp.Net Core？

本文旨在为读取超大XML文件提供一种解决方案。

测试环境： .Net Core 3.1
测试文件：73G

代码：

  var file = Path.Combine("D:/data/stackoverflow/stackoverflow.com-Posts",
                           "", "", "Posts.xml");

            using (XmlReader reader = XmlReader.Create(file)) 
            { 
                while (reader.Read()) 
                { 
                    switch (reader.NodeType) 
                    { 
                        case XmlNodeType.Element: 

                            if (reader.HasAttributes) 
                            { 
                                Console.WriteLine("Attributes of <" + reader.Name + ">"); 
                                while (reader.MoveToNextAttribute()) 
                                { 
                                    Console.WriteLine(" {0}={1}", reader.Name, reader.Value); 
                                } 
                                // Move the reader back to the element node. 
                                reader.MoveToElement(); 
                            } 
                         
                            break; 
                        case XmlNodeType.Text: 
                            Console.Write(reader.Value); 
                            break; 
                        case XmlNodeType.CDATA: 
                            Console.Write("<![CDATA[{0}]]>", reader.Value); 
                            break; 
                        case XmlNodeType.ProcessingInstruction: 
                            Console.Write("<?{0} {1}?>", reader.Name, reader.Value); 
                            break; 
                        case XmlNodeType.Comment: 
                            Console.Write("<!--{0}-->", reader.Value); 
                            break; 
                        case XmlNodeType.XmlDeclaration: 
                            Console.Write("<?xml version='1.0'?>"); 
                            break; 
                        case XmlNodeType.Document: 
                            break; 
                        case XmlNodeType.DocumentType: 
                            Console.Write("<!DOCTYPE {0} [{1}]", reader.Name, reader.Value); 
                            break; 
                        case XmlNodeType.EntityReference: 
                            Console.Write(reader.Name); 
                            break; 
                        case XmlNodeType.EndElement: 
                            Console.Write("</{0}>", reader.Name); 
                            break; 
                    } 
                } 
            } 

读取结果