Question

我目前正在尝试将部分Java库翻译成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，我的文件是.xml文件，但是因为我从未做过类似的事情，所以在Java和C＃中都没有。

我一直在做一些研究，我找到了将这个.xml文件转换为.cs类的不同方法，但我找不到关于.xml应该具有的语法的文档。

我尝试使用xsd.exe工具，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，我提出了这个错误：Error: Can only generate one of classes or datasets.

然后我做了一些研究，发现了另一个工具Xsd2Code，所以我尝试使用相同的.xml文件来获取.cs文件，但它提示错误抱怨结构：

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，并且之前不能包含空格。第2行，第3位。

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：我在第一条评论中说明了这一点，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.

原帖继续：

这是一个如何在XML for Java中定义不同对象的模板，但我想知道这个结构是否会因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>

这是XML语法的问题吗？

Answer 1

xsd.exe和xsd2Code可用于从XML 架构生成C＃类（通常使用扩展名.xsd，因此使用工具名称）。它们不会直接从示例XML 实例生成类。

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

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

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

用于生成C＃代码的XML语法

1 个答案: