XML 生成 C# 代码的语法

Question

我目前正在尝试将 Java 库的一部分转换为 C# 库，以便在 Unity 中使用。在这个 Java 库中，一些类是从 XML 文件生成的，我有这些文件的 .xml 文件，但是因为我从来没有做过这样的事情，所以在 Java 也不在 C# 中。

我一直在做一些研究，我发现了将此 .xml 文件转换为 .cs 类的不同方法，但我找不到有关 .xml 应该有。

我尝试使用工具 xsd.exe 并且我设法从一个 xml 文件创建和 xsd 文件但是当我尝试生成 .cs 文件时我被提示了这个错误：Error: Can only generate one of classes or datasets.

然后我进行了一些研究并找到了另一个工具，Xsd2Code，所以我尝试将它与相同的 .xml 文件一起使用来获取 .cs 文件，但它提示了一个抱怨结构的错误：

C:\Program Files (x86)\Xsd2Code>Xsd2Code.exe Vehicle.xml Vehicle.cs

Xsd2Code Version 3.4.0.32990
Code generation utility from XML schema files.

Error: Declaración XML inesperada. La declaración XML debe ser el primer nodo del documento y no pueden aparecer espacios en blanco delante. Línea 2, posición 3.
        SubType: Unspecified

        Rule:

我会翻译它，因为它是西班牙语：错误：意外的 XML 声明。 XML 声明必须是第一个节点并且之前不能有空格。第 2 行，位置 3。

这是特定文件的第一行：

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:hfp="http://www.w3.org/2001/XMLSchema-hasFacetAndProperty" targetNamespace="http://www.w3.org/2001/XMLSchema" blockDefault="#all" elementFormDefault="qualified" version="1.0" xml:lang="EN">
<?xml version="1.0" encoding="UTF-8"?>
<traciClass>
    <name>Vehicle</name>

编辑：我按照第一条评论的说法更正了它，但现在我收到了

Error: Schema validation failed:
El elemento 'traciClass' no es compatible en este contexto.
        SubType: Unspecified

        Rule:

The element traciClass is not compatible in this context.

原文post继续：

这是 XML 中应如何为 Java 定义不同对象的模板，但我想知道此结构是否会因 C# 而异。

<?xml version="1.0" encoding="UTF-8"?>
<!-- This file is used to generate a Java class with the same name for a 
    TraCI object. This saves manually writing a lot of boilerplate code. -->
<traciClass>
    <!-- The name of the object. It will be used as the class name. First letter 
        is capital. Must be equal to this document's file name. -->
    <name>ExampleTraciObject</name>

    <!-- The javadoc of the class that will be generated. -->
    <javadoc>
    Put your object description here.
    </javadoc>

    <!-- Lists all the other repositories that are needed by the queries -->
    <repos>
        <repo>Repository1</repo>
        <repo>Repository2</repo>
    </repos>

    <command>it.polito.appeal.traci.protocol.Constants.CMD_GET_VEHICLE_VARIABLE</command>

    <!-- List of all "read" queries, i.e. those that don't change the state 
        of the object and return a value -->
    <readQueries>

        <readQuery>

            <!-- The name of the query. If the name is XXX, the Java class will contain 
                a method named queryXXX() -->
            <name>ReadSomeValueQuery</name>

            <!-- The enum name of the query. It will appear as an enum entry
            in the inner Variable enum, and can be used with the getReadQuery() method -->
            <enum>SOME_VALUE</enum>

            <!-- A numeric value or a constant of type int that tells the variable 
                ID -->
            <const>it.polito.appeal.traci.protocol.Constants.SOME_VARIABLE</const>

            <!-- The Java class name that can make the query. It must be a subclass 
                of ReadObjectVarQuery. If the class is on the package
                it.polito.appeal.traci, the package name can be omitted-->
            <query>ReadObjectVarQuery.IntegerQ</query>

            <!-- The return type of the query. It must be the same type (or a supertype) 
                of the type parameter V specified in the above class. 
                Leave it empty to use the query class as the return type. -->
            <returnType>java.lang.Integer</returnType>

            <!-- If true, it means that this value may change at every simulation 
                step. -->
            <dynamic>true</dynamic>
        </readQuery>

        <!-- add other read queries here -->
    </readQueries>

    <!-- List of all "change state" queries, i.e. those that change the state 
        of the object and don't return a value -->
    <changeStateQueries>

        <!-- The syntax of a changeStateQuery is similar to readQuery, differences 
            are listed below. -->
        <changeStateQuery>
            <name>DoSomething</name>
            <query>DoSomethingQuery</query>
            <!-- Lists the read queries that may be changed by the execution of this 
            query, identified by their name. Calling this query will clear the caches 
            of the queries contained here. -->
            <affects>
                <affect>ReadSomeValueQuery</affect>
            </affects>
        </changeStateQuery>

        <!-- add other change state queries here -->

    </changeStateQueries>

</traciClass>

是不是XML语法的问题？

Answer 1

xsd.exe 和 xsd2Code 可用于从 XML schema 生成 C# 类（通常带有扩展名.xsd，因此是工具名称）。它们不会直接从样本 XML 实例 .

生成类

根据 xsd.exe docs，您可以使用它从 XML 实例推断模式。然后您可以从中生成类。

xsd.exe instance.xml
xsd.exe instance.xsd /classes

Visual Studio 也可以帮助您：将您的 XML 复制到剪贴板并单击 Edit | Paste Special | Paste XML as Classes。

XML 生成 C# 代码的语法

XML Syntax for generating C# code

c#

java

xml

xsd