这次使用操作Xml较为常用的方法:使用XMlreader和Xmlwriter
1:读取xml文件的数学和元素
XmlReaderSettings settings = new XmlReaderSettings(); settings.IgnoreComments = true; settings.IgnoreWhitespace = true;
XmlReader reader = XmlReader.Create("Customer2.xml", settings); List<CustomerInfo> lists = new List<CustomerInfo>();
CustomerInfo cust = null;
while (reader.Read()) { if (reader.NodeType == XmlNodeType.Element) { switch (reader.Name) { case "row": cust = new CustomerInfo(); if (reader.HasAttributes) { cust.AppId = reader.GetAttribute("AppID"); cust.Version = reader.GetAttribute("Version"); } break;
case "CustomerID": cust.CustomerID = reader.ReadString(); break;
case "CompanyName": cust.CompanyName = reader.ReadString(); break; case "ContactName": cust.ContactName = reader.ReadString(); break; case "ContactTitle": cust.ContactTitle = reader.ReadString(); break;
case "Address": cust.Address = reader.ReadString(); break;
case "City": cust.City = reader.ReadString(); break;
case "PostalCode": cust.PostalCode = reader.ReadString(); break; case "Country": cust.Country = reader.ReadString(); break; case "Phone": cust.Phone = reader.ReadString(); break; case "Fax": cust.Fax = reader.ReadString(); lists.Add(cust); break; default: break;
} }
}
2.创建文档-属性和元素
XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; settings.NewLineOnAttributes = false; XmlWriter writer = XmlWriter.Create("CustomerNewElementArribute.xml", settings); writer.WriteStartDocument(); writer.WriteStartElement("Table");
for (int i = 1; i < 10; i++) { writer.WriteStartElement("row"); writer.WriteAttributeString("Version", "2.0"); writer.WriteAttributeString("AppID", "111"); writer.WriteElementString("CustomerID", "cmz" + i.ToString()); writer.WriteElementString("CompanyName", "程沐喆" + i.ToString()); writer.WriteElementString("ContactName", "Maria Anders" + i.ToString()); writer.WriteElementString("ContactTitle", "Sales Representative" + i.ToString()); writer.WriteElementString("Address", "Obere Str. 57" + i.ToString()); writer.WriteElementString("City", "Berlin"); writer.WriteElementString("PostalCode", "12209"); writer.WriteElementString("Country", "Germany"); writer.WriteElementString("Phone", "030-0074321"); writer.WriteElementString("Fax", "030-0076545"); writer.WriteEndElement(); }
writer.WriteEndElement(); writer.WriteEndDocument(); writer.Flush(); writer.Close(); }
private void button7_Click(object sender, EventArgs e) { XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; settings.NewLineOnAttributes = false; settings.Encoding = Encoding.UTF8; StringBuilder builder = new StringBuilder(); XmlWriter writer = XmlWriter.Create(builder, settings); writer.WriteStartDocument(); writer.WriteStartElement("Table");
for (int i = 1; i < 5; i++) { writer.WriteStartElement("row"); writer.WriteAttributeString("Version", "2.0"); writer.WriteAttributeString("AppID", "111"); writer.WriteElementString("CustomerID", "cmz" + i.ToString()); writer.WriteElementString("CompanyName", "程沐喆" + i.ToString()); writer.WriteElementString("ContactName", "Maria Anders" + i.ToString()); writer.WriteElementString("ContactTitle", "Sales Representative" + i.ToString()); writer.WriteElementString("Address", "Obere Str. 57" + i.ToString()); writer.WriteElementString("City", "Berlin"); writer.WriteElementString("PostalCode", "12209"); writer.WriteElementString("Country", "Germany"); writer.WriteElementString("Phone", "030-0074321"); writer.WriteElementString("Fax", "030-0076545"); writer.WriteEndElement(); } writer.WriteEndElement(); writer.WriteEndDocument(); writer.Flush();
writer.Close();
另外在介绍自己学习的使用xmlwriter写入StringBuiler和Stream
创建xml写入StringBuiler:
XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; settings.NewLineOnAttributes = false; settings.Encoding = Encoding.UTF8; StringBuilder builder = new StringBuilder(); XmlWriter writer = XmlWriter.Create(builder, settings); writer.WriteStartDocument();
writer.WriteStartElement("Table");
for (int i = 1; i < 5; i++) { writer.WriteStartElement("row"); writer.WriteAttributeString("Version", "2.0"); writer.WriteAttributeString("AppID", "111"); writer.WriteElementString("CustomerID", "ALFKI" + i.ToString()); writer.WriteElementString("CompanyName", "Alfreds Futterkiste" + i.ToString()); writer.WriteElementString("ContactName", "Maria Anders" + i.ToString()); writer.WriteElementString("ContactTitle", "Sales Representative" + i.ToString()); writer.WriteElementString("Address", "Obere Str. 57" + i.ToString()); writer.WriteElementString("City", "Berlin"); writer.WriteElementString("PostalCode", "12209"); writer.WriteElementString("Country", "Germany"); writer.WriteElementString("Phone", "030-0074321"); writer.WriteElementString("Fax", "030-0076545"); writer.WriteEndElement(); } writer.WriteEndElement(); writer.WriteEndDocument(); writer.Flush(); writer.Close();
创建xml写入stream:
XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; settings.NewLineOnAttributes = false; settings.Encoding = new UTF8Encoding(false); MemoryStream stream = new MemoryStream(); XmlWriter writer = XmlWriter.Create(stream, settings); writer.WriteStartDocument(); writer.WriteStartElement("Table");
for (int i = 1; i < 5; i++) { writer.WriteStartElement("row"); writer.WriteAttributeString("Version", "2.0"); writer.WriteAttributeString("AppID", "111"); writer.WriteElementString("CustomerID", "ALFKI" + i.ToString()); writer.WriteElementString("CompanyName", "Alfreds Futterkiste" + i.ToString()); writer.WriteElementString("ContactName", "Maria Anders" + i.ToString()); writer.WriteElementString("ContactTitle", "Sales Representative" + i.ToString()); writer.WriteElementString("Address", "Obere Str. 57" + i.ToString()); writer.WriteElementString("City", "Berlin"); writer.WriteElementString("PostalCode", "12209"); writer.WriteElementString("Country", "Germany"); writer.WriteElementString("Phone", "030-0074321"); writer.WriteElementString("Fax", "030-0076545"); writer.WriteEndElement(); } writer.WriteEndElement(); writer.WriteEndDocument(); writer.Flush(); writer.Close();
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