C#-生成xml

先拼接出字符串然后写入文件，

            string fileName = @"D:XXX.xml";

            //header
            StringBuilder xmlResult = new StringBuilder("<?xml version="1.0" encoding="UTF-8"?>");
            xmlResult.Append("<ns0:SHIPMENT_DATA xmlns:ns0="http://xxx/v1.0">");

            //CNTRLAREA

            xmlResult.Append("<CNTRLAREA>");
            xmlResult.Append("<SENDER>");
            xmlResult.Append("<LOGICALID>WQQQ</LOGICALID>");
            xmlResult.Append("</SENDER>");


            xmlResult.Append("</CNTRLAREA>");





            //detail 
            string sql = "SELECT 'jinwei' as name1,'jinwei2' as name2 ";
            DataTable dt = db.GetDataTable(sql);

            xmlResult.Append("<DETAILS>");
            for (int i = 0; i < dt.Rows.Count; i++)
            {

                xmlResult.Append("<DETAIL>");
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    xmlResult.AppendFormat("<{0}>{1}</{2}>", dt.Columns[j].ToString(), dt.Rows[i][j].ToString(), dt.Columns[j].ToString());

                }
                xmlResult.Append("</DETAIL>");

            }
            xmlResult.Append("</DETAILS>");



            xmlResult.Append("</ns0:SHIPMENT_DATA>");

            //写入文件
            try
            {
                //1.创建文件流  
                FileStream fileStream = new FileStream(fileName, FileMode.Create);
                //2.创建写入器  
                StreamWriter streamWriter = new StreamWriter(fileStream);
                //3.将内容写入文件  
                streamWriter.WriteLine(xmlResult);
                //4.关闭写入器  
                streamWriter.Close();
                //5.关闭文件流  
                fileStream.Close();
            }
            catch (Exception e)
            { }