XSD签名问题 [英] XSD Signature issue

问题描述

我无法解决关于<xs:element ref="ds:Signature"/>的错误. 我需要一些帮助.

I cannot resolve this error about <xs:element ref="ds:Signature"/>. I need some help please.

版权所有(C)Microsoft Corporation.版权所有.架构图 验证警告:" http://www.w3.org/2000/09/xmldsig #:签名' 没有声明. 162行，位置8.

Copyright (C) Microsoft Corporation. All rights reserved. Schema validation warning: The 'http://www.w3.org/2000/09/xmldsig#:Signature' el ement is not declared. Line 162, position 8.

警告:无法验证架构.类生成可能失败或 可能会产生错误的结果.

Warning: Schema could not be validated. Class generation may fail or may produce incorrect results.

警告:无法生成类，因为没有顶级元素 发现了复杂类型.

Warning: cannot generate classes because no top-level elements with complex type were found.

XSD

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"  
            xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
  attributeFormDefault="unqualified" elementFormDefault="qualified">

  <xs:import namespace="http://www.w3.org/2000/09/xmldsig#"
             schemaLocation="http://www.w3.org/TR/2002/REC-xmldsig-core-20020212/xmldsig-core-schema.xsd"/>

             <xs:complexType name="SobreCheques">
        <xs:annotation>
            <xs:documentation>Definition of the ...</xs:documentation>
        </xs:annotation>
        <xs:sequence>
             ...
      <xs:element ref="ds:Signature"/>
        </xs:sequence>
    </xs:complexType>
</xs:schema>

推荐答案

从W3C网站检索xmldsig-core-schema.xsd可能会花费很长时间，从而导致超时.

Retrieving xmldsig-core-schema.xsd from the W3C site can take a long time, causing timeouts.

相反，请在与XSD相同的目录中使用缓存的本地副本，

Instead, use a cached local copy in the same directory as your XSD,

<xs:import namespace="http://www.w3.org/2000/09/xmldsig#"
           schemaLocation="xmldsig-core-schema.xsd"/>

或使用注释中的 @ulab中显示的绝对路径:

<xs:import namespace="http://www.w3.org/2000/09/xmldsig#"   
           schemaLocation="file:///D:/xmldsig-core-schema.xsd" />

另请参见如何正确引用本地XML模式文件?

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