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Homephp教程php手册LinqToXML~读XML文件

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。

复制代码
<?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>
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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。

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  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()));
复制代码

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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