使用自動生成的模式對XML文件進行反義化時，“無法識別指定的類型”
[英]“The specified type was not recognized” when desearalizing a XML file using auto-generated schema
問題描述
到目前為止，我想解釋我的整個過程，因為我是使用XML文件的新手，希望有人可以指出我搞砸了什么步驟。 如果您只想看我的問題，我將在底部簡潔地提出。
我正在嘗試導入通過會計軟件Peachtree生成的XML文件。 這是一個名為ITEM.xml的XML文件的簡化版本。
<PAW_Items xmlns:paw="urn:schemas-peachtree-com/paw8.02-datatypes"
xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2000/10/XMLSchema-datatypes">
<PAW_Item xsi:type="paw:item">
<ID xsi:type="paw:id">00002</ID>
<Description>Example1</Description>
<Class>1</Class>
<isInactive>TRUE</isInactive>
<Subject_to_Commission>FALSE</Subject_to_Commission>
<Description_for_Sales>Example1</Description_for_Sales>
<Sales_Prices>
<Sales_Price_Info Key="1">
<Sales_Price>5.22000</Sales_Price>
<Sales_Price_Calc>NC</Sales_Price_Calc>
<Sales_Price_Rounding>0</Sales_Price_Rounding>
<Sales_Price_Rounding_Cent>0.00000</Sales_Price_Rounding_Cent>
</Sales_Price_Info>
<Sales_Price_Info Key="2">
<Sales_Price>0.00000</Sales_Price>
<Sales_Price_Calc>NC</Sales_Price_Calc>
<Sales_Price_Rounding>0</Sales_Price_Rounding>
<Sales_Price_Rounding_Cent>0.00000</Sales_Price_Rounding_Cent>
</Sales_Price_Info>
</Sales_Prices>
<Tax_Type>0</Tax_Type>
<Last_Unit_Cost>5.22000</Last_Unit_Cost>
<Costing_Method>1</Costing_Method>
<GL_Sales_Account xsi:type="paw:id">40000</GL_Sales_Account>
<GL_Inventory_Account xsi:type="paw:id">12000</GL_Inventory_Account>
<GL_COGSSalary_Acct xsi:type="paw:id">50000</GL_COGSSalary_Acct>
<Type>SA</Type>
<Stocking_UM>BTL</Stocking_UM>
<Weight>0.00000</Weight>
<Minimum_Stock>0.00000</Minimum_Stock>
<Reorder_Quantity>0.00000</Reorder_Quantity>
<Vendor_ID xsi:type="paw:id">B&L</Vendor_ID>
<Substock_Primary_Attributes>
</Substock_Primary_Attributes>
<Substock_Secondary_Attributes>
</Substock_Secondary_Attributes>
<QuantityOnSO>0.00000</QuantityOnSO>
<QuantityOnPO>0.00000</QuantityOnPO>
<QuantityOnHand>0.00000</QuantityOnHand>
<IsTaxable>TRUE</IsTaxable>
<Print_Components>FALSE</Print_Components>
<Number_of_Components>0</Number_of_Components>
<Components>
<Component>
<Effective_Date xsi:type="paw:date"/>
<Component_Number>0</Component_Number>
<Qty_Needed>0.00000</Qty_Needed>
</Component>
</Components>
</PAW_Item>
<PAW_Item xsi:type="paw:item">
<ID xsi:type="paw:id">0001</ID>
<Description>Example2</Description>
<Class>1</Class>
<isInactive>TRUE</isInactive>
<Subject_to_Commission>FALSE</Subject_to_Commission>
<Description_for_Sales>Example2</Description_for_Sales>
<Sales_Prices>
<Sales_Price_Info Key="1">
<Sales_Price>4.39000</Sales_Price>
<Sales_Price_Calc>NC</Sales_Price_Calc>
<Sales_Price_Rounding>0</Sales_Price_Rounding>
<Sales_Price_Rounding_Cent>0.00000</Sales_Price_Rounding_Cent>
</Sales_Price_Info>
<Sales_Price_Info Key="2">
<Sales_Price>0.00000</Sales_Price>
<Sales_Price_Calc>NC</Sales_Price_Calc>
<Sales_Price_Rounding>0</Sales_Price_Rounding>
<Sales_Price_Rounding_Cent>0.00000</Sales_Price_Rounding_Cent>
</Sales_Price_Info>
</Sales_Prices>
<Tax_Type>0</Tax_Type>
<Last_Unit_Cost>4.39000</Last_Unit_Cost>
<Costing_Method>1</Costing_Method>
<GL_Sales_Account xsi:type="paw:id">40000</GL_Sales_Account>
<GL_Inventory_Account xsi:type="paw:id">12000</GL_Inventory_Account>
<GL_COGSSalary_Acct xsi:type="paw:id">50000</GL_COGSSalary_Acct>
<Type>SA</Type>
<Stocking_UM>EA</Stocking_UM>
<Weight>0.00000</Weight>
<Minimum_Stock>0.00000</Minimum_Stock>
<Reorder_Quantity>0.00000</Reorder_Quantity>
<Substock_Primary_Attributes>
</Substock_Primary_Attributes>
<Substock_Secondary_Attributes>
</Substock_Secondary_Attributes>
<QuantityOnSO>0.00000</QuantityOnSO>
<QuantityOnPO>0.00000</QuantityOnPO>
<QuantityOnHand>0.00000</QuantityOnHand>
<IsTaxable>TRUE</IsTaxable>
<Print_Components>FALSE</Print_Components>
<Number_of_Components>0</Number_of_Components>
<Components>
<Component>
<Effective_Date xsi:type="paw:date"/>
<Component_Number>0</Component_Number>
<Qty_Needed>0.00000</Qty_Needed>
</Component>
</Components>
</PAW_Item>
</PAW_Items>
我所做的第一件事是使用XML Schema Definition Tool通過以下命令基於XML文件創建XSD文件
xsd ITEM.xml
生成了兩個XSD文件ITEM.xsd和ITEM_app1.xsd
ITEM.xsd：
<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="PAW_Items" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:app1="http://www.w3.org/2000/10/XMLSchema-instance">
<xs:import namespace="http://www.w3.org/2000/10/XMLSchema-instance" schemaLocation="ITEM_app1.xsd" />
<xs:element name="PAW_Items" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="PAW_Item">
<xs:complexType>
<xs:sequence>
<xs:element name="Description" type="xs:string" minOccurs="0" msdata:Ordinal="1" />
<xs:element name="Class" type="xs:string" minOccurs="0" msdata:Ordinal="2" />
<xs:element name="isInactive" type="xs:string" minOccurs="0" msdata:Ordinal="3" />
<xs:element name="Subject_to_Commission" type="xs:string" minOccurs="0" msdata:Ordinal="4" />
<xs:element name="Description_for_Sales" type="xs:string" minOccurs="0" msdata:Ordinal="5" />
<xs:element name="Tax_Type" type="xs:string" minOccurs="0" msdata:Ordinal="6" />
<xs:element name="Last_Unit_Cost" type="xs:string" minOccurs="0" msdata:Ordinal="7" />
<xs:element name="Costing_Method" type="xs:string" minOccurs="0" msdata:Ordinal="8" />
<xs:element name="Type" type="xs:string" minOccurs="0" msdata:Ordinal="9" />
<xs:element name="Stocking_UM" type="xs:string" minOccurs="0" msdata:Ordinal="10" />
<xs:element name="Weight" type="xs:string" minOccurs="0" msdata:Ordinal="11" />
<xs:element name="Minimum_Stock" type="xs:string" minOccurs="0" msdata:Ordinal="12" />
<xs:element name="Reorder_Quantity" type="xs:string" minOccurs="0" msdata:Ordinal="13" />
<xs:element name="Substock_Primary_Attributes" type="xs:string" minOccurs="0" msdata:Ordinal="14" />
<xs:element name="Substock_Secondary_Attributes" type="xs:string" minOccurs="0" msdata:Ordinal="15" />
<xs:element name="QuantityOnSO" type="xs:string" minOccurs="0" msdata:Ordinal="16" />
<xs:element name="QuantityOnPO" type="xs:string" minOccurs="0" msdata:Ordinal="17" />
<xs:element name="QuantityOnHand" type="xs:string" minOccurs="0" msdata:Ordinal="18" />
<xs:element name="IsTaxable" type="xs:string" minOccurs="0" msdata:Ordinal="19" />
<xs:element name="Print_Components" type="xs:string" minOccurs="0" msdata:Ordinal="20" />
<xs:element name="Number_of_Components" type="xs:string" minOccurs="0" msdata:Ordinal="21" />
<xs:element name="ID" nillable="true" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent msdata:ColumnName="ID_Text" msdata:Ordinal="1">
<xs:extension base="xs:string">
<xs:attribute ref="app1:type" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="Sales_Prices" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Sales_Price_Info" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Sales_Price" type="xs:string" minOccurs="0" msdata:Ordinal="0" />
<xs:element name="Sales_Price_Calc" type="xs:string" minOccurs="0" msdata:Ordinal="1" />
<xs:element name="Sales_Price_Rounding" type="xs:string" minOccurs="0" msdata:Ordinal="2" />
<xs:element name="Sales_Price_Rounding_Cent" type="xs:string" minOccurs="0" msdata:Ordinal="3" />
</xs:sequence>
<xs:attribute name="Key" type="xs:string" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="GL_Sales_Account" nillable="true" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent msdata:ColumnName="GL_Sales_Account_Text" msdata:Ordinal="1">
<xs:extension base="xs:string">
<xs:attribute ref="app1:type" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="GL_Inventory_Account" nillable="true" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent msdata:ColumnName="GL_Inventory_Account_Text" msdata:Ordinal="1">
<xs:extension base="xs:string">
<xs:attribute ref="app1:type" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="GL_COGSSalary_Acct" nillable="true" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent msdata:ColumnName="GL_COGSSalary_Acct_Text" msdata:Ordinal="1">
<xs:extension base="xs:string">
<xs:attribute ref="app1:type" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="Vendor_ID" nillable="true" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent msdata:ColumnName="Vendor_ID_Text" msdata:Ordinal="1">
<xs:extension base="xs:string">
<xs:attribute ref="app1:type" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="Components" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Component" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Component_Number" type="xs:string" minOccurs="0" />
<xs:element name="Qty_Needed" type="xs:string" minOccurs="0" />
<xs:element name="Effective_Date" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:attribute ref="app1:type" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute ref="app1:type" />
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
ITEM_app1.xsd：
<?xml version="1.0" standalone="yes"?>
<xs:schema targetNamespace="http://www.w3.org/2000/10/XMLSchema-instance" xmlns:mstns="http://www.w3.org/2000/10/XMLSchema-instance" xmlns="http://www.w3.org/2000/10/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" attributeFormDefault="qualified" elementFormDefault="qualified" xmlns:app1="http://www.w3.org/2000/10/XMLSchema-instance">
<xs:attribute name="type" msdata:Prefix="xsi" type="xs:string" />
</xs:schema>
然后，我嘗試僅使用命令xsd ITEM.xsd /c但這沒有用。
E:\test>xsd ITEM.xsd /c Microsoft (R) Xml Schemas/DataTypes support utility [Microsoft (R) .NET Framework, Version 4.0.30319.17929] Copyright (C) Microsoft Corporation. All rights reserved. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 113, position 14. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 35, position 24. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 61, position 24. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 70, position 24. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 79, position 24. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 88, position 24. Schema validation warning: The 'http://www.w3.org/2000/10/XMLSchema-instance:type' attribute is not declared. Line 103, position 32. Warning: Schema could not be validated. Class generation may fail or may produce incorrect results. Error: Error generating classes for schema 'ITEM'. - The attribute type is missing. If you would like more help, please type "xsd /?".
使用ITEM_app1.xsd並嘗試列出兩個文件均ITEM_app1.xsd ，搜索了一下之后，我發現如果使用/parameters參數，則可以列出多個文件。 所以我用以下命令創建了一個參數文件
<xsd xmlns='http://microsoft.com/dotnet/tools/xsd/'>
<generateClasses language='CS' namespace='Peachtree'>
<schema>ITEM.xsd</schema>
<schema>ITEM_app1.xsd</schema>
</generateClasses>
</xsd>
並成功創建了ITEM_ITEM_app1.cs （您可以在pastebin中獲得代碼的副本，因為在此處發布代碼會使此問題超出了最大發布大小限制）
我創建了這個簡單的程序來測試它
using System.Diagnostics;
using System.IO;
using System.Xml.Serialization;
using Peachtree;
namespace Sandbox_Console
{
public class Program
{
private static void Main(string[] args)
{
using (var file = File.OpenText(@"E:\test\ITEM.xml"))
{
var ser = new XmlSerializer(typeof(PAW_Items)); //Line 16
var result = (PAW_Items) ser.Deserialize(file);
Debugger.Break();
}
}
}
}
當我第一次嘗試運行它時，出現了此異常
System.InvalidOperationException occurred
HResult=-2146233079
Message=Unable to generate a temporary class (result=1).
error CS0030: Cannot convert type 'Peachtree.PAW_ItemsPAW_ItemSales_PricesSales_Price_Info[]' to 'Peachtree.PAW_ItemsPAW_ItemSales_PricesSales_Price_Info'
error CS0030: Cannot convert type 'Peachtree.PAW_ItemsPAW_ItemComponentsComponent[]' to 'Peachtree.PAW_ItemsPAW_ItemComponentsComponent'
error CS0029: Cannot implicitly convert type 'Peachtree.PAW_ItemsPAW_ItemSales_PricesSales_Price_Info' to 'Peachtree.PAW_ItemsPAW_ItemSales_PricesSales_Price_Info[]'
error CS0029: Cannot implicitly convert type 'Peachtree.PAW_ItemsPAW_ItemComponentsComponent' to 'Peachtree.PAW_ItemsPAW_ItemComponentsComponent[]'
Source=System.Xml
StackTrace:
at System.Xml.Serialization.Compiler.Compile(Assembly parent, String ns, XmlSerializerCompilerParameters xmlParameters, Evidence evidence)
at System.Xml.Serialization.TempAssembly.GenerateAssembly(XmlMapping[] xmlMappings, Type[] types, String defaultNamespace, Evidence evidence, XmlSerializerCompilerParameters parameters, Assembly assembly, Hashtable assemblies)
at System.Xml.Serialization.TempAssembly..ctor(XmlMapping[] xmlMappings, Type[] types, String defaultNamespace, String location, Evidence evidence)
at System.Xml.Serialization.XmlSerializer.GenerateTempAssembly(XmlMapping xmlMapping, Type type, String defaultNamespace)
at System.Xml.Serialization.XmlSerializer..ctor(Type type, String defaultNamespace)
at System.Xml.Serialization.XmlSerializer..ctor(Type type)
at Sandbox_Console.Program.Main(String[] args) in e:\Code\Sandbox Console\Program.cs:line 16
InnerException:
但是，我發現在復雜類型中有復雜類型時，這是xsd.exe的已知問題 。 我只是將生成的文件中具有[][]的兩個類更改為[] ，從而解決了該問題。
我的問題：
當我嘗試反序列化文件時，出現以下異常
System.InvalidOperationException occurred
HResult=-2146233079
Message=There is an error in XML document (4, 3).
Source=System.Xml
StackTrace:
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
at System.Xml.Serialization.XmlSerializer.Deserialize(TextReader textReader)
at Sandbox_Console.Program.Main(String[] args) in e:\Code\Sandbox Console\Program.cs:line 16
InnerException: System.InvalidOperationException
HResult=-2146233079
Message=The specified type was not recognized: name='item', namespace='urn:schemas-peachtree-com/paw8.02-datatypes', at <PAW_Item xmlns=''>.
Source=Microsoft.GeneratedCode
StackTrace:
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderPAW_Items.Read10_PAW_ItemsPAW_Item(Boolean isNullable, Boolean checkType)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderPAW_Items.Read11_PAW_Items(Boolean isNullable, Boolean checkType)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderPAW_Items.Read12_PAW_Items()
InnerException:
似乎它在<PAW_Item xsi:type="paw:item">上<PAW_Item xsi:type="paw:item"> ，並且不知道如何處理xsi:type="paw:item"部分。
如果我嘗試通過將代碼更改為將PAW_ItemsPAW_Item添加到已知類型，
var types = new[] {typeof (PAW_ItemsPAW_Item)}; //Line 15
var ser = new XmlSerializer(typeof(PAW_Items), types);
var result = (PAW_Items) ser.Deserialize(file);
我在new XmlSerializer(...)行上收到以下錯誤
System.InvalidOperationException occurred
HResult=-2146233079
Message=Cannot include anonymous type 'Peachtree.PAW_ItemsPAW_Item'.
Source=System.Xml
StackTrace:
at System.Xml.Serialization.XmlReflectionImporter.IncludeType(Type type, RecursionLimiter limiter)
at System.Xml.Serialization.XmlSerializer..ctor(Type type, XmlAttributeOverrides overrides, Type[] extraTypes, XmlRootAttribute root, String defaultNamespace, String location, Evidence evidence)
at System.Xml.Serialization.XmlSerializer..ctor(Type type, Type[] extraTypes)
at Sandbox_Console.Program.Main(String[] args) in e:\Code\Sandbox Console\Program.cs:line 15
InnerException:
我錯過了哪個步驟導致這種情況發生？
2 個解決方案
解決方案1
1 2013-09-25 07:14:51
從您得到的第一個錯誤開始，該錯誤是從ITEM.xsd生成代碼的。 xsd.exe報告所有屬性都缺少type屬性
<xs:attribute ref="app1:type" />
在復雜類型中。 這些屬性是由於ITEM.xml文件中的xsi：type屬性而生成的。 我想您希望xsd.exe生成架構，以便將指定的類型（paw：id，paw：item）用於這些屬性。 我不知道這是否適用於xsd.exe，您可能需要在xsd.exe上使用其他命令行選項，或者使用其他工具，例如try xsd2code。
解決方案2
0 2013-09-25 14:48:32
事實證明，如果使用Visual Studio（2012）的設計器，效果很好。
我只是將.xsd文件添加到我的項目中，並且它使用了工具MSDataSetGenerator並創建了一個可以對文件進行反序列化的DataSet。 DataSet適合我的使用。
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