简单的XML问题

Question

好的，使用我的XML编辑器检查验证，我得到“验证已停止在第2行第8列：没有找到元素'Staff'的声明。有人知道为什么吗？

另外，每三名工作人员具有不同的类型，每种类型都包含不同的元素（例如，兼职工作人员仅具有电子邮件，姓名，职位，而全职类型具有有关所有元素的信息。）拥有元素是否不好？数据留空？ 如果它们是不同类型的StaffMembers，是否可以消除多余的元素，还是每个StaffMember始终都需要相同的元素？ 谢谢！

<Staff>

    <StaffMember type="FullTime">
        <Name>Richard Baskerville</Name>
        <Position>Professor</Position>
        <OfficePhone>(404) 413-7362</OfficePhone>
        <Building>Robinson College</Building>
        <Room>919</Room>
        <URL>www.cis.gsu.edu/~rbaskerv</URL>
        <Email>rbaskerville@cis.gsu.edu</Email>
        <DegreeInfo>Ph. D., M.S., B.S.</DegreeInfo>
        <Research> Information systems security, interaction of information systems and organizations, qualitative research methods,      diffusion of IT innovations, knowledge management</Research>
    </StaffMember>

    <StaffMember type ="FullTime">
        <Name>Michael Gallivan</Name>
        <Position>Associate Professor</Position>
        <OfficePhone>(404) 413-7363</OfficePhone>
        <Building>Robinson College</Building>
        <Room>935</Room>
        <URL>www.cis.gsu.edu/~mgalliva</URL>
        <Email>mgalliva@cis.gsu.edu</Email>
        <DegreeInfo>Ph. D., M.B.A., M.P.H., B.A.</DegreeInfo>
        <Research> IT human resource management, management of IT outsourcing, adoption and diffusion of innovations, organizational learning from innovations </Research>
    </StaffMember>

      <StaffMember type ="FullTime">
        <Name>Sidney Harris</Name>
        <Position>Professor</Position>
        <OfficePhone>(404) 413-7017</OfficePhone>
        <Building>Robinson College</Building>
        <Room>427</Room>
        <URL>www2.gsu.edu/~wwwseh/</URL>
        <Email>sidneyharris@gsu.edu</Email>
        <DegreeInfo>Ph. D., M.S., B.S.</DegreeInfo>
        <Research> Strategic management of technology, global practices in technological innovation and management, regional studies on China and Asia culture of high performance organization</Research>
    </StaffMember>

      <StaffMember type ="Adjunct">
        <Name>Arash Akhlaghi</Name>
        <Position>Adjunct Professor</Position>
        <OfficePhone></OfficePhone>
        <Building></Building>
        <Room></Room>
        <URL></URL>
        <Email>aakhlaghi1@student.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Adjunct">
        <Name>Catherine Baird</Name>
        <Position>Adjunct Professor</Position>
        <OfficePhone></OfficePhone>
        <Building></Building>
        <Room></Room>
        <URL></URL>
        <Email>cbaird@cis.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Adjunct">
        <Name>David Bloomquist</Name>
        <Position>Adjunct Professor</Position>
        <OfficePhone></OfficePhone>
        <Building></Building>
        <Room></Room>
        <URL></URL>
        <Email>dbloomquist@cis.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Staff">
        <Name>Desiree Plummer</Name>
        <Position>PC System Specialist</Position>
        <OfficePhone>(404) 413-7440></OfficePhone>
        <Building>Robinson College</Building>
        <Room>908</Room>
        <URL></URL>
        <Email>dplummer@cis.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Staff">
        <Name>Walter Rich</Name>
        <Position>Manager, CIS External Affairs</Position>
        <OfficePhone>(404) 413-7398></OfficePhone>
        <Building>Robinson College</Building>
        <Room>929</Room>
        <URL></URL>
        <Email>wrich@cis.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Staff">
        <Name>James Sneed</Name>
        <Position>Information Technology Department Manager</Position>
        <OfficePhone>(404) 413-7383></OfficePhone>
        <Building>Robinson College</Building>
        <Room>907</Room>
        <URL></URL>
        <Email>jsneed@cis.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

  <StaffMember type="Ph.D">
        <Name>Anouck Adrot</Name>
        <Position></Position>
        <OfficePhone>(404) 413-7389></OfficePhone>
        <Building>Robinson College</Building>
        <Room>910</Room>
        <URL></URL>
        <Email>aadrot1@student.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Ph.D">
        <Name>Chad Anderson</Name>
        <Position></Position>
        <OfficePhone>(404) 413-7389></OfficePhone>
        <Building>Robinson College</Building>
        <Room>910</Room>
        <URL></URL>
        <Email>canderson32@comcast.net</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

    <StaffMember type="Ph.D">
        <Name>Mathieu Chauvet</Name>
        <Position></Position>
        <OfficePhone>(404) 413-7389></OfficePhone>
        <Building>Robinson College</Building>
        <Room>910</Room>
        <URL></URL>
        <Email>mchauvet1@student.gsu.edu</Email>
        <DegreeInfo></DegreeInfo>
        <Research></Research>
    </StaffMember>

</Staff>

Answer 1

这个XML验证器不会给您的xml提供任何错误。

无论如何，如果您使用模式或DTD进行验证，则可能会出现错误（如果它不符合规范）。

第二点，您可以有一个空节点，但使用情况取决于您的需求，如果使用一个，则取决于规范，以及将使用此xml的代码。 如果您没有像我怀疑的那样使用架构或DTD，或者以后解析它的代码都照顾到了它们，则可以删除它们。

Answer 2

“验证在第2行第8列停止：找不到元素'Staff'的声明。有人知道为什么吗？

因为您尚未声明要验证的架构（XML Schema，DTD，RNG等）。 我不知道您使用的是哪种XML编辑器...显然，您告诉它进行验证，并且它试图说它无法验证，因为没有要验证的架构。 这并不意味着你的XML是无效的：相反，它意味着有效性已经为XML没有意义的（除非您的模式与之相关联）。