参考：/dotnet261010/p/6513618.html
实体类转换成XML方法：
将实体类转换成XML需要使用XmlSerializer类的Serialize方法，将实体类序列化
public static string XmlSerialize<T>(T obj){using (System.IO.StringWriter sw = new StringWriter()){Type t = obj.GetType();System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(obj.GetType());serializer.Serialize(sw, obj);sw.Close();return sw.ToString();}}
例子：
定义实体类
public class root{public head head { get; set; }public body body { get; set; }}public class head{public string organ { get; set; }public string jkxlh { get; set; }public string jkid { get; set; }}//注意！body类的vehispara的类型是dynamic 所以需要使用XmlInclude表示body可以解析的类型[System.Xml.Serialization.XmlInclude(typeof(JCZ01))][System.Xml.Serialization.XmlInclude(typeof(JCZ02))]public partial class body{public dynamic vehispara { get; set; }//接受动态业务类型 即JCZ01、JCZ02等等}public class JCZ01{public string tsno { get; set; }public string orgcode { get; set; }public string teststation { get; set; }public string testaddress { get; set; }public DateTime? firstauthdate { get; set; }public DateTime? jlrzyxrq { get; set; }public DateTime? linkdate { get; set; }public string legalperson { get; set; }public string test { get; set; }public string testtel { get; set; }public int testlines { get; set; }public string status { get; set; }public decimal? lng { get; set; }public decimal? lat { get; set; }}public class JCZ02 {public string tsno { get; set; }public string testlineno { get; set; }public string firstauthdate { get; set; }public string testtype { get; set; }public string status { get; set; }public string gwip { get; set; }public string lxpzq { get; set; }public string lxpzh { get; set; }public string lxpzczj { get; set; }public string lxpzdt { get; set; }public string jclc { get; set; }public string jcbbh { get; set; }public string provider { get; set; }public string testexpiredade { get; set; }public string dynamometer { get; set; }public string dprovider { get; set; }public string dadate { get; set; }public string analyser { get; set; }public string aprovider { get; set; }public string aadate { get; set; }public string flowmeter { get; set; }public string fprovider { get; set; }public string fadate { get; set; }public string smokemeter { get; set; }public string sprovider { get; set; }public string sadate { get; set; }public string tachometer { get; set; }public string tprovider { get; set; }public string tadate { get; set; }public string otsensor { get; set; }public string oprovider { get; set; }public string oadate { get; set; }public string wstype { get; set; }public string wsrovider { get; set; }}
实体类转XML代码
//Linq to sql 获取数据var query = from sta in _DetectStation join line in lineCount on sta.StaID equals line.StaIDwhere sta.StaID == staidselect new JCZ01{tsno = cityid + sta.StaID.Substring(4,2),orgcode = cityid + sta.StaID.Substring(4, 2),teststation = sta.StaName,testaddress = sta.Address,firstauthdate = sta.CMADate,jlrzyxrq = sta.CMADate,linkdate = sta.CMADate,legalperson = sta.CEOName,test = sta.CEOName,testtel = sta.CEOOfficePhone,testlines = line.LineCount,status = sta.StaState==0?"1":"2",lng = sta.Longitude,lat = sta.Latitude};List<JCZ01> jcz011 = query.ToList<JCZ01>();root r = new root();head h = new head();h.jkid = Properties.Settings.Default.JKBH;h.jkxlh = Properties.Settings.Default.JKXLH;body b = new body();b.vehispara = jcz011[0];r.head = h;r.body = b;string strhxml = XmlSerialize<head>(h);string strbxml = XmlSerialize<body>(b);string strrxml = XmlSerialize<root>(r);
生成的XML实例
<?xml version="1.0" encoding="utf-16"?><root xmlns:xsi="/2001/XMLSchema-instance" xmlns:xsd="/2001/XMLSchema"><head><jkxlh>BD11F82096F0290DB2866BD266A0CEDF</jkxlh><jkid>23270000</jkid></head><body><vehispara xsi:type="JCZ01"><tsno>23270002</tsno><orgcode>23270002</orgcode><teststation>XXXX有限公司</teststation><testaddress>测试</testaddress><firstauthdate>2038-08-11T00:00:00</firstauthdate><jlrzyxrq>2038-08-11T00:00:00</jlrzyxrq><linkdate>2038-08-11T00:00:00</linkdate><legalperson>测试</legalperson><test>测试</test><testtel /><testlines>1</testlines><status>1</status><lng xsi:nil="true" /><lat xsi:nil="true" /></vehispara></body></root>
XML转实体类：
把XML转换成相应的实体类，需要使用到XmlSerializer类的Deserialize方法，将XML进行反序列化
public static T DESerializer<T>(string strXML) where T:class{try{using (StringReader sr = new StringReader(strXML)){XmlSerializer serializer = new XmlSerializer(typeof(T));return serializer.Deserialize(sr) as T;}}catch (Exception ex){return null;}}
实体类转XML需注意的问题：
当实体类的string类型字段为null时，序列化成XML时会忽略掉这个字段（即序列化后的XML中没有该节点）
解决的办法我知道的有两个，第一个把该字段赋值为空字符串，另一个就是给类的属性加上XmlElement(IsNullable=true)特性，如：
public class JCZ01{[System.Xml.Serialization.XmlElement(IsNullable = true)]public string tsno { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string orgcode { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string teststation { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string testaddress { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public DateTime? firstauthdate { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public DateTime? jlrzyxrq { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public DateTime? linkdate { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string legalperson { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string test { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string testtel { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public int? testlines { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public string status { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public decimal? lng { get; set; }[System.Xml.Serialization.XmlElement(IsNullable = true)]public decimal? lat { get; set; }}
