C# 输出流转换成输入流操作XML

最新推荐文章于 2019-10-15 20:37:30 发布

最新推荐文章于 2019-10-15 20:37:30 发布 · 290 阅读

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#C# 输出流转换成输入流操作XML

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本文详细介绍了如何使用C#将XML输出流转化为输入流进行XML文件操作，包括读取、结构化处理及最终保存过程。

C# 输出流转化成输入流操作XML

C# Code

class Program
    {
        static void Main(string[] args)
        {
            DataSet ds = new DataSet();
            ds.ReadXmlSchema(@"D:\szschema.xsd");
            DataTable dt = ds.Tables["ITEMADD"];
            StructHead(ds.Tables["HEADER"]);
            StructDatas(ds.Tables["DATAS"]);
            int m = 0;
            StructData( ds.Tables["DATA"], m);
            StructITEMADD(ds.Tables["ITEMADD"], m);
            string filepath = "D:\\_123.xml";

            //暂存流用于操作xml使用
            MemoryStream ms = new MemoryStream();
            XmlTextWriter  XmlWt = new XmlTextWriter(ms, Encoding.UTF8);
            //保存xml文件的写入流
            TextWriter t = new StreamWriter(filepath, false, Encoding.UTF8);
            try
            {
                ds.WriteXml(XmlWt);
                XmlWt.Flush();
                //将流转换成byte数组
                int mscount = (int)ms.Length;
                byte[] temp = new byte[mscount];
                ms.Seek(0, SeekOrigin.Begin);
                ms.Read(temp, 0, mscount);
                //将utf8编码的byte返回成文本
                string xml = new UTF8Encoding().GetString(temp).Trim();
                //操作xml
                XmlDocument doc = new XmlDocument();
                doc.LoadXml(xml);
                //查找data节点
                XmlNode data = doc.SelectNodes("FREIGHTCPIC/DATAS/DATA").Item(0);
                if (data != null)
                {
                    XmlNodeList itemaddlist = data.SelectNodes("ITEMADD");
                    XmlNode itemadd2 = itemaddlist.Item(1);
                    XmlNodeList itemaddsub = itemadd2.ChildNodes;
                    int ncount = itemaddsub.Count;
                    for (int i = 0; i < ncount; i++)
                    {
                        itemaddlist.Item(0).AppendChild(itemaddsub.Item(0));
                    }
                    data.RemoveChild(itemadd2);
                    //保存修改后的xml
                    doc.Save(t);
                }
            }
            catch
            {
                //如果发生错误，保存未修改前的xml
                ds.WriteXml(t);
            }
            finally
            {
                XmlWt.Close();
                ms.Close();
                ds.Dispose();
                t.Close();
            }
        }

        private static void StructHead(DataTable dt)
        {
            DataRow row = dt.NewRow();
            row["TYPE"] = "IN";
            row["WORKTYPE"] = "0";
            row["CLASSESTYPE"] = "1";
            row["LOGINUSERNAME"] = "1";
            row["LOGINPASSWORD"] = "1";
            dt.Rows.Add(row);
        }
        private static  void StructDatas(DataTable dt)
        {
            DataRow row = dt.NewRow();
            row["DATAS_Id"] = "0";
            dt.Rows.Add(row);
        }

        private static  void StructITEMADD(DataTable dt, int i)
        {
            DataRow row = dt.NewRow();
            row["ITEMADDCODE"] = "Z000054C";
            row["ITEMADDCONTENT"] = "被保险人/投保人保证本保单投保内容完全符合与保险人签署之有效《货物运输预约保险单》所载明的条件";
            row["DATA_Id"] = i;
            dt.Rows.Add(row);

            row = dt.NewRow();
            row["ITEMADDCODE"] = "Z000055C";
            row["ITEMADDCONTENT"] = "本单为货物起运后投保，保险责任自{" + DateTime.Now.ToString("yyyy-MM-dd") + "}起";
            row["DATA_Id"] = i;
            dt.Rows.Add(row);
        }

        private static  void StructData( DataTable dt, int i)
        {

            DataRow row = dt.NewRow();
            row["AUDITTYPE"] = "A";
            row["UNITCODE"] = "50232";
            row["APPLYNO"] = "22222222222222222222";//协议申请号
            row["APPLYENDORSENO"] = "222222222222222222222222222222222";//协议批改号
            row["APPLYCODE"] = "9000122236800";
            row["APPLYNAME"] = "深圳市XXXXX有限公司";
            row["INSURANTNAME"] = "";
            row["CLASSTYPE"] = "";
            row["MARK"] = "";
            row["QUANTITY"] = "";
            row["ITEM"] = "";
            row["PACKCODE"] = "01";
            row["ITEMCODE"] = "";
            row["FLIGHTAREACODE"] = "";
            row["KIND"] = "";
            row["KINDNAME"] = "";
            row["VOYNO"] = "";
            row["STARTPORT"] = "深圳";
            row["TRANSPORT1"] = "";
            row["ENDPORT"] = "";
            row["CLAIMAGENT"] = "";
            row["MAINITEMCODE"] = "ZH";
            row["ITEMCONTENT"] = "国内水路、陆路货物运输保险条款综合险";
            row["CREDITNO"] = "";
            row["PRINTNUM"] = "1";
            row["CURRENCYCODE"] = "01";
            row["PRICECOND"] = "1";
            row["INVAMOUNT"] = "0";
            row["INCRATE"] = "";
            row["AMOUNT"] ="";
            row["RATE"] = "";
            row["PREMIUM"] = "";
            row["POLICYNUM"] = "1";
            row["CLAIMCURRENCYCODE"] = "01";
            row["CLAIMPAYPLACE"] = "0";
            row["FCURRENCYCODE"] = "01";
            row["EFFECTDATE"] = "";
            row["SAILDATE"] = "";
            row["FRANCHISE"] = "1";
            row["SPECIALIZE"] ="";
            row["SPECIALIZE"] = "";
            row["USERNO"] = "";
            row["DATA_Id"] = i;
            row["DATAS_Id"] = "0";
            dt.Rows.Add(row);
        }
    }