xml读写文件实例

时间：2023-12-10 18:25:32

在某个通讯中需要向服务器发送请求xml，格式例子如下：

<?xml version="1.0" encoding="UTF-8"?>

<ROOT>

  <HEADER>

    <TRANNO>001</TRANNO>

  </HEADER>

  <BODY>

    <BATCH>Y</BATCH>

    <TASKLOG>

      <APPNO>0000000001</APPNO>

    </TASKLOG>

    <TASKLOG>

      <APPNO>0000000002</APPNO>

    </TASKLOG>

  </BODY>

</ROOT>

服务器反馈信息如下：

<?xml version="1.0" encoding="UTF-8"?>

<ROOT>

  <HEADER>

    <TRANNO>001</TRANNO>

  </HEADER>

  <BODY>

    <BATCH>Y</BATCH>

    <TASKLOG>

      <APPNO>0000000001</APPNO>

      <STATUS>001</STATUS>

    </TASKLOG>

    <TASKLOG>

      <APPNO>0000000002</APPNO>

      <STATUS>002</STATUS>

    </TASKLOG>

  </BODY>

</ROOT>

1、创建xml节点头的实体类、请求实体类、接收实体类

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace XXYYZZ

{

    public abstract class Header

    {

        /// <summary>

        /// 交易号

        /// </summary>

        public string Tranno { get; set; }

        /// <summary>

        /// 是否批：Y是 N否

        /// </summary>

        public string Batch { get; set; }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace XXYYZZ

{

    public class ReqTasklog : Header

    {

        public List<ReqTasklogBody> ReqTasklogBodyList;

    }

    public class ReqTasklogBody

    {

        /// <summary>

        ///申请编号

        /// </summary>

        public string Appno { get; set; }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace XXYYZZ

{

    public class RspTasklog : Header

    {

        public List<RspTasklogBody> rspTasklogBodyList;

    }

    public class RspTasklogBody

    {

        /// <summary>

        ///申请编号

        /// </summary>

        public string Appno { get; set; }

        /// <summary>

        /// 状态

        /// </summary>

        public string Status { get; set; }

    }

}

2、创建一个生成xml头节点的类XmlHeader

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml;

namespace XXYYZZ

{

    public class XmlHeader

    {

        /// <summary>

        /// 头节点

        /// </summary>

        /// <param name="model"></param>

        /// <param name="doc"></param>

        /// <returns></returns>

        public XmlElement CreateHeaderNode(Header model,XmlDocument doc)

        {

            XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "UTF-8", null);

            doc.AppendChild(dec);

            XmlElement root = doc.CreateElement("ROOT");

            doc.AppendChild(root);

            //头节点

            XmlElement header = doc.CreateElement("HEADER");

            root.AppendChild(header);

            header.AppendChild(CreateNode(doc, "TRANNO", model.Tranno));

            //内容节点

            XmlElement body = doc.CreateElement("BODY");

            root.AppendChild(body);

            return body;

        }

        /// <summary>

        /// 创建节点

        /// </summary>

        /// <param name="doc"></param>

        /// <param name="name"></param>

        /// <param name="value"></param>

        /// <returns></returns>

        public XmlElement CreateNode(XmlDocument doc, string name, string value)

        {

            XmlElement element = doc.CreateElement(name);

            element.InnerText = value;

            return element;

        }

    }

}

3、创建一个将实体转为XML的类ModelToXml，继承XmlHeader

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml;

namespace XXYYZZ

{

    public class ModelToXml : XmlHeader

    {

        /// <summary>

        /// 请求查询XX状态

        /// </summary>

        /// <param name="model"></param>

        /// <param name="fullFileName"></param>

        public void ReqTasklogSave(ReqTasklog model, string fullFileName)

        {

            XmlDocument doc = new XmlDocument();

            XmlElement body = CreateHeaderNode(model, doc);

            //是否批量

            string batchValue = model.ReqTasklogBodyList.Count > 1 ? "Y" : "N";

            body.AppendChild(CreateNode(doc, "BATCH", batchValue));

            foreach (ReqTasklogBody reqTasklogBody in model.ReqTasklogBodyList)

            {

                XmlElement bodyLoanapp = doc.CreateElement("TASKLOG");

                body.AppendChild(bodyLoanapp);

                bodyLoanapp.AppendChild(CreateNode(doc, "APPNO", reqTasklogBody.Appno));

            }

            doc.Save(fullFileName);

        }

    }

}

测试：

 private void button2_Click(object sender, EventArgs e)

        {

            ReqTasklog model = new ReqTasklog()

            {

                Tranno = "001",

                ReqTasklogBodyList = new List<ReqTasklogBody>()

                {

                    new ReqTasklogBody()

                    {

                        Appno = "0000000001"

                    },

                    new ReqTasklogBody()

                    {

                        Appno = "0000000002"

                    }

                }

            };

            string filename = "ReqTasklog.xml";

            ModelToXml createXml = new ModelToXml();

            createXml.ReqTasklogSave(model, filename);

        }

4、创建一个将xml转为实体的类GetRspTasklog

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml;

using System.IO;

namespace XXYYZZ

{

    public class XmlToModel

    {

        public RspTasklog GetRspTasklog(string filepath)

        {

            RspTasklog model = new RspTasklog();

            XmlDocument xDoc = new XmlDocument();

            using (StreamReader sr = new StreamReader(filepath, Encoding.UTF8))

            {

                xDoc.Load(sr);

                model.Tranno = GetNodeText(xDoc, "//TRANNO");

                model.Batch = GetNodeText(xDoc, "//BATCH");

                model.rspTasklogBodyList = new List<RspTasklogBody>();

                XmlNodeList nodeList = xDoc.SelectNodes("/ROOT/BODY/TASKLOG");

                foreach (XmlNode node in nodeList)

                {

                    RspTasklogBody body = new RspTasklogBody()

                    {

                         Appno = node["APPNO"].InnerText,

                         Status = node["STATUS"].InnerText

                    };

                    model.rspTasklogBodyList.Add(body);

                }

            }

            return model;

        }

        private string GetNodeText(XmlDocument xDoc, string xpath)

        {

            XmlNode xNode = xDoc.SelectSingleNode(xpath);

            return (xNode != null) ? xNode.InnerText : "";

        }

    }

}

测试：

private void button5_Click(object sender, EventArgs e)

        {

            XmlToModel getxml = new XmlToModel();

            RspTasklog model = getxml.GetRspTasklog("RspTasklog.xml");

        }

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