linq的出现,带给我们的是简结,快速,可读性,它由linq to sql,linq to object,linq to xml组成,我的博客之前有对linq to sql的讲解,而今天,我将讲一个linq to xml架构,将对于操作XML文件进行读写操作,它会让你像使用linq to sql一样,操作你的xml
linq的出现,带给我们的是简结,快速,可读性,它由linq to sql,linq to object,linq to xml组成,我的博客之前有对linq to sql的讲解,而今天,我将讲一个linq to xml架构,将对于操作XML文件进行读写操作,它会让你像使用linq to sql一样,操作你的xml文件,OK,我们来看一下,下面的一个XML文件。

<?xml version="1.0"?> <arrayofdatasync xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <datasync> <__isset> <issync>true</issync> <filepath>true</filepath> <currentseek>true</currentseek> <clientkey>true</clientkey> <ordernumber>true</ordernumber> <occurtime>true</occurtime> <name>false</name> <size>false</size> <lastdate>false</lastdate> </__isset> <issync>true</issync> <filepath>d:\path\资料\thrift文件\thrift文件\testjava.thrift</filepath> <currentseek>1297</currentseek> <clientkey>8C:89:A5:E1:89:3D</clientkey> <ordernumber>1</ordernumber> <occurtime>2014/1/26 15:32:46</occurtime> <size>0</size> </datasync> <datasync> <__isset> <issync>true</issync> <filepath>true</filepath> <currentseek>true</currentseek> <clientkey>true</clientkey> <ordernumber>true</ordernumber> <occurtime>true</occurtime> <name>false</name> <size>false</size> <lastdate>false</lastdate> </__isset> <issync>true</issync> <filepath>d:\path\资料\thrift文件\thrift文件\thrift-0.8.0.exe</filepath> <currentseek>4013056</currentseek> <clientkey>8C:89:A5:E1:89:3D</clientkey> <ordernumber>1</ordernumber> <occurtime>2014/1/26 15:32:46</occurtime> <size>0</size> </datasync> <datasync> <__isset> <issync>true</issync> <filepath>true</filepath> <currentseek>true</currentseek> <clientkey>true</clientkey> <ordernumber>true</ordernumber> <occurtime>true</occurtime> <name>false</name> <size>false</size> <lastdate>false</lastdate> </__isset> <issync>true</issync> <filepath>d:\path\资料\thrift文件\thrift文件\thrift_白皮书.pdf</filepath> <currentseek>441217</currentseek> <clientkey>8C:89:A5:E1:89:3D</clientkey> <ordernumber>1</ordernumber> <occurtime>2014/1/26 15:32:46</occurtime> <size>0</size> </datasync> <datasync> <__isset> <issync>true</issync> <filepath>true</filepath> <currentseek>true</currentseek> <clientkey>true</clientkey> <ordernumber>true</ordernumber> <occurtime>true</occurtime> <name>false</name> <size>false</size> <lastdate>false</lastdate> </__isset> <issync>true</issync> <filepath>d:\path\资料\thrift文件\thrift文件\thrift命令.txt</filepath> <currentseek>131</currentseek> <clientkey>8C:89:A5:E1:89:3D</clientkey> <ordernumber>1</ordernumber> <occurtime>2014/1/26 15:32:46</occurtime> <size>0</size> </datasync> </arrayofdatasync>

这个文件是thrift自动为我们生成的,现在我们使用linq to xml来读这个文件里的内容读出来,当然你也可以使用XML反序列化的方式,将它反序列化成对象,再读出。

System.Console.WriteLine("Loading XML data..."); var data = (from e in XElement.Load("D:\\path\\资料\\thrift文件\\thrift文件\\fileUploadLog.xml_log.xml") .Elements("DataSync") select new DataSync { OrderNumber = Convert.ToInt32(e.Element("OrderNumber").Value), IsSync = Convert.ToBoolean(e.Element("IsSync").Value), FilePath = e.Element("FilePath").Value, CurrentSeek = Convert.ToInt64(e.Element("CurrentSeek").Value), ClientKey = e.Element("ClientKey").Value, OccurTime = e.Element("OccurTime").Value, }).ToList(); data.ForEach(i => System.Console.WriteLine(i.ToString()));

而输出的结果如下:
上面的例子中,我们的XML文件使用的是元素的方式,也可以使用属性的形式,代码只要稍作修改即可。

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