我正在按照here给出的教程进行反序列化嵌入的xml文档。
我的Xml文档:
<?xml version="1.0" encoding="utf-8" ?>
<ArrayOfAgency xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<DbAgencyDefinition>
<Name>RTD</Name>
<Country>USA</Country>
<City>Denver</City>
<State>CO</State>
<GtfsZipUrlDirectory>http://www.address.com/etc/</GtfsZipUrlDirectory>
<GtfsZipUrlFileName>file_name.zip</GtfsZipUrlFileName>
</DbAgencyDefinition>
</ArrayOfAgency>
我要反序列化的班级:
public class DbAgencyDefinition
{
public string Name { get; set; }
public string City { get; set; }
public string Country { get; set; }
public string GtfsZipUrlDirectory { get; set; }
public string GtfsZipUrlFileName { get; set; }
public string State { get; set; }
}
试图将XML反序列化为DbAgencyDefinition列表的代码:
var assembly = IntrospectionExtensions.GetTypeInfo(typeof(DbAgencyDefinition)).Assembly;
Stream stream = assembly.GetManifestResourceStream("MyNamespace.Resources.xml.AgencyDefinitions.xml");
var agencies = new List<DbAgencyDefinition>();
using (var reader = new StreamReader(stream))
{
var serializer = new XmlSerializer(typeof(List<DbAgencyDefinition>));
agencies = (List<DbAgencyDefinition>)serializer.Deserialize(reader);
}
我得到的错误是:
System.Exception: There is an error in XML document. <ArrayOfAgency xmlns=''> was not expected
我用XML尝试了上百万次,将类标记为Serializable,它总是返回此错误。我查看了教程提供的代码示例,但无法弄清楚为什么会出现此错误。
答案 0 :(得分:1)
VS都有一个特殊的工具,可以将复制的Xml转换为自动生成的类。现在,它并不完美,但是如果您使用Xml文件,它会生成类似于以下内容的两个类:
public class ArrayOfAgency
{
public ArrayOfAgencyDbAgencyDefinition DbAgencyDefinition { get; set; }
}
public class ArrayOfAgencyDbAgencyDefinition
{
public string Name { get; set; }
public string Country { get; set; }
public string City { get; set; }
public string State { get; set; }
public string GtfsZipUrlDirectory { get; set; }
public string GtfsZipUrlFileName { get; set; }
}
您可能会注意到,ArrayOfAgency
被确定为持有DbAgencyDefinition
的类,这就是为什么它在尝试将其直接反序列化为List<DbAgencyDefinition>
时抛出错误的原因。类型和序列化程序的期望并不完全相同。
var serializer = new XmlSerializer(typeof(ArrayOfAgency));
var agencies = ((ArrayOfAgency)serializer.Deserialize(reader)).DbAgencyDefinition;
另外,正如我提到的那样,自动生成可能并不完美,因为如果Xml中可能有多个ArrayOfAgency
,DbAgencyDefinition
可能需要保存一个数组而不是直接类。 / p>
public class ArrayOfAgency
{
public ArrayOfAgencyDbAgencyDefinition[] DbAgencyDefinition { get; set; }
}
如果您需要有关Xml序列化的更多帮助或信息,请查看docs。
答案 1 :(得分:0)
尝试以下操作:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using System.IO;
namespace ConsoleApplication120
{
class Program
{
const string FILENAME = @"c:\temp\test.xml";
static void Main(string[] args)
{
using (var reader = new StreamReader(FILENAME, Encoding.UTF8))
{
var serializer = new XmlSerializer(typeof(ArrayOfAgency));
ArrayOfAgency agencies = (ArrayOfAgency)serializer.Deserialize(reader);
}
}
}
public class ArrayOfAgency
{
public DbAgencyDefinition DbAgencyDefinition { get; set; }
}
public class DbAgencyDefinition
{
public string Name { get; set; }
public string City { get; set; }
public string Country { get; set; }
public string GtfsZipUrlDirectory { get; set; }
public string GtfsZipUrlFileName { get; set; }
public string State { get; set; }
}
}