需求如下，

项目需要将一段xml字符串中的信息提取出来

    
      
         
      
       1397045886045
          
      
       2014-04-09 20:12:29
          
      
       1.0.0
          
      
       0
          
      
       成功
        
       
         
      
       false
          
      
       false
          
      
       1
          
      
       7
          
      
       1
          
      
       7
          
      
       2
          
      
       0
          
      
       20
          
      
       1
          
      
       0
        
       
         
            
       
        南京北极阁一号
             
       
        360721
             
       
北极山庄1号
      
       
        250
             
       
        320100
             
       
        99
             
       
        118.7869
             
       
        32.0616
             
       
        0
           
          
            
       
        南京仙林大成名店动感地带旗舰营业厅
             
       
        276495
             
       
仙林大成名店一层
      
       
        250
             
       
        320100
             
       
        99
             
       
        118.9169
             
       
        32.1037
             
       
        0
           
          
            
       
        南京工业职业技术学院
             
       
        373703
             
       
南京市羊山路一号
      
       
        250
             
       
        320100
             
       
        99
             
       
        118.9319
             
       
        32.1241
             
       
        0
           
          
            
       
        南京星巴克凤凰书城店
             
       
        257778
             
       
湖南路1号凤凰国际书城一层B铺位
      
       
        250
             
       
        320100
             
       
        99
             
       
        118.7785
             
       
        32.0705
             
       
        0
           
      
     
    

将所有的<hotpointInfo> Node 集合取出来

构成List<Dictionary<string,string>>的数据结构

我尝试使用了三种方法，实现这个需求

1. 使用Regex正则表达式匹配
2. 使用XElement类解析
3. 使用XmlReader类解析

使用Regex正则表达式匹配

List
    
     
      > list = new List
      
       
        >();            MatchCollection hotspotMatches = Regex.Matches(s,                "
        
         .*?
         
          (?
          
           .*?)
          .*?
          
(?
.*?)
.*?
           
            (?
            
             .*?)
            
           .*?
           
            (?
            
             .*?)
            
           .*?
           
            (?
            
             .*?)
            .*?
            
             (?
             
              .*?)
             .*?(.*?
             
              (?
              
               .*?)
              
             )?.*?", RegexOptions.Singleline); foreach (Match hotspotMatch in hotspotMatches) { Dictionary
             
               dictionary = new Dictionary
              
               (); dictionary["name"] = hotspotMatch.Groups["name"].Value; dictionary["nasid"] = hotspotMatch.Groups["nasid"].Value; dictionary["address"] = hotspotMatch.Groups["address"].Value; dictionary["province"] = hotspotMatch.Groups["province"].Value; dictionary["cityCode"] = hotspotMatch.Groups["cityCode"].Value; dictionary["type"] = hotspotMatch.Groups["type"].Value; dictionary["longitude"] = hotspotMatch.Groups["longitude"].Value; dictionary["latitude"] = hotspotMatch.Groups["latitude"].Value; dictionary["isRecommend"] = hotspotMatch.Groups["isRecommend"].Value; list.Add(dictionary); }
              
             
            
           
         
        
       
      
     
    

使用XElement类解析

List
    
     
      > list = new List
      
       
        >();            XElement xElementFromString = XElement.Parse(s);            var v = from hotpointInfoElement in xElementFromString.Element("hotpointInfoList").Elements("hotpointInfo")                    select hotpointInfoElement;            foreach (XElement xElement in v)            {                Dictionary
        
          dictionary = new Dictionary
         
          (); dictionary["name"] = xElement.Element("name").Value; dictionary["nasid"] = xElement.Element("nasid").Value; dictionary["address"] = xElement.Element("address").Value; dictionary["province"] = xElement.Element("province").Value; dictionary["cityCode"] = xElement.Element("cityCode").Value; dictionary["type"] = xElement.Element("type").Value; dictionary["longitude"] = xElement.Element("longitude").Value; dictionary["latitude"] = xElement.Element("latitude").Value; dictionary["isRecommend"] = xElement.Element("isRecommend").Value; list.Add(dictionary); }
         
        
       
      
     
    

使用XmlReader类解析

List
    
     
      > list = new List
      
       
        >();            using (XmlReader reader = XmlReader.Create(new StringReader(s)))            {                while (reader.Read())                {                    if (reader.NodeType == XmlNodeType.Element)                    {                        if (reader.Name == "hotpointInfo")                        {                            XElement el = XNode.ReadFrom(reader) as XElement;                            if (el != null)                            {                                Dictionary
        
          dictionary = new Dictionary
         
          (); dictionary["name"] = el.Element("name").Value; dictionary["nasid"] = el.Element("nasid").Value; dictionary["address"] = el.Element("address").Value; dictionary["province"] = el.Element("province").Value; dictionary["cityCode"] = el.Element("cityCode").Value; dictionary["type"] = el.Element("type").Value; dictionary["longitude"] = el.Element("longitude").Value; dictionary["latitude"] = el.Element("latitude").Value; dictionary["isRecommend"] = el.Element("isRecommend").Value; list.Add(dictionary); } } } } }