Question

在尝试使用XSD验证XML时，今天遇到了一个非常奇怪的问题。看看我提供的XML，它看起来是正确的。

我从XDocument.Validate收到的错误是：元素＆＃39; APPOINTMENTS ＆＃39;有无效的子元素＆＃39; APPOINTMENT ＆＃39;

以下是我使用的XML：

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
 <xs:element name="PATIENTS">
   <xs:complexType>
     <xs:sequence>
       <xs:element name="PATIENT" minOccurs="1">
         <xs:complexType>
           <xs:sequence>
             <xs:element name="APPOINTMENTS" minOccurs="0">
              <xs:complexType>
                <xs:sequence>
                  <xs:element name="APPOINTMENT" minOccurs="0">
                    <xs:complexType>
                      <xs:sequence>
                        <xs:element name="UserInitials" type="xs:string" minOccurs="1"></xs:element>
                        <xs:element name="Date" type="xs:string" minOccurs="1"></xs:element>
                        <xs:element name="ApptTime" type="xs:string" minOccurs="1"></xs:element>
                        <xs:element name="Duration" type="xs:string" minOccurs="1"></xs:element>
                        <xs:element name="AppointmentStatus" type="xs:string" minOccurs="1"></xs:element>
                        <xs:element name="LegacyTypeID" type="xs:string" minOccurs="0"></xs:element>
                        <xs:element name="AClinic" minOccurs="0"></xs:element>
                        <xs:element name="Notes" type="xs:string" minOccurs="0"></xs:element>
                        <xs:element name="Info" type="xs:string" minOccurs="0"></xs:element>
                        <xs:element name="TreatmentType" type="xs:string" minOccurs="0" default="Examination"></xs:element>
                      </xs:sequence>
                    </xs:complexType>
                  </xs:element>
                </xs:sequence>
              </xs:complexType>
             </xs:element>
           </xs:sequence>
         </xs:complexType>
       </xs:element>
     </xs:sequence>
   </xs:complexType>
 </xs:element>
</xs:schema>

我正在验证的XSD文件：

...

new SendUDPTask().execute();

...

/************ getBroadcastAddress: know where to send the signal to find the server ***********/

private InetAddress getBroadcastAddress() {

    //setup
    WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    DhcpInfo dhcp = wifiManager.getDhcpInfo();

    //complicated stuff
    int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask;
    byte[] quads = new byte[4];
    for (int k = 0; k < 4; k++)
        quads[k] = (byte) ((broadcast >> k * 8) & 0xFF);

    //return result
    InetAddress result = null;
    try {

        result = InetAddress.getByAddress(quads);

    } catch (UnknownHostException e) {

        e.printStackTrace();

    }

    return result;

}

/************ sendUDP: here e send the packet that will allow us to find the server ***********/

private DatagramPacket sendUDP(String req, int port) throws IOException {

    DatagramSocket socket = new DatagramSocket(port);
    socket.setBroadcast(true);

    InetAddress broadcastAddress = getBroadcastAddress();
    DatagramPacket packet = new DatagramPacket(req.getBytes(), req.length(), broadcastAddress, port);
    socket.send(packet);

    byte[] buf = new byte[1024];
    packet = new DatagramPacket(buf, buf.length);
    socket.setSoTimeout(3000);

    //We wouldn't want to think our own message is the server's response
    String myAddress = getMyAddress();
    socket.receive(packet);
    while (packet.getAddress().getHostAddress().contains(
            myAddress))
    {
        socket.receive(packet);
    }

    socket.close();

    return packet;
}

/***************************** getMyAddress: the device's address *****************************/

public String getMyAddress() {

    try {

        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {

            NetworkInterface intf = en.nextElement();

            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {

                InetAddress inetAddress = enumIpAddr.nextElement();

                if (!inetAddress.isLoopbackAddress())
                    return inetAddress.getHostAddress();

            }

        }

    }
    catch (SocketException e) {

        e.printStackTrace();

    }

    return null;
}

private class SendUDPTask extends AsyncTask<String, Void, DatagramPacket> {

    private Exception exception;

    protected DatagramPacket doInBackground(String... params) {
        try {
            DatagramPacket packet = sendUDP("Ping", 31415);
            Log.d("GJ", packet.getAddress().getHostAddress().toString());
        } catch (IOException e) {
            e.printStackTrace();
        }

        return null;
    }

    protected void onPostExecute(DatagramPacket packet) {

    }
}

我不太了解发生了什么，看起来Appointments和Appointments标签符合XSD文件。

除非XSD文件存在问题，否则XML文档的其余部分看起来是正确的。

我的患者元素中有其他元素正常工作。

Answer 1

我已经解决了这个问题，实际上我错过了部分XML来向您展示。

我应该包含以下内容：

<?xml version="1.0" encoding="utf-8" ?>
<PATIENTS>
  <PATIENT>
    <APPOINTMENTS>
      <APPOINTMENT>
        <UserInitials>123</UserInitials>
        <Date>Some Date</Date>
        <ApptTime>14:30</ApptTime>
        <Duration>00:15</Duration>
        <AppointmentStatus>Complete</AppointmentStatus>
        <Notes>Some note</Notes>
        <TreatmentType>Some Appoinment type</TreatmentType>
      </APPOINTMENT>
      <APPOINTMENT>
        <UserInitials>123</UserInitials>
        <Date>Some Date</Date>
        <ApptTime>14:30</ApptTime>
        <Duration>00:15</Duration>
        <AppointmentStatus>Complete</AppointmentStatus>
        <Notes>Some note</Notes>
        <TreatmentType>Some Appoinment type</TreatmentType>
      </APPOINTMENT>
      <APPOINTMENT>
        <UserInitials>123</UserInitials>
        <Date>Some Date</Date>
        <ApptTime>14:30</ApptTime>
        <Duration>00:15</Duration>
        <AppointmentStatus>Complete</AppointmentStatus>
        <Notes>Some note</Notes>
        <TreatmentType>Some Appoinment type</TreatmentType>
      </APPOINTMENT>
    </APPOINTMENTS>
  </PATIENT>
</PATIENTS>

我实际上在APPOINTMENT元素中有多条记录，这需要XSD文件在APPOINTMENT元素上有以下内容：

<xs:element name="APPOINTMENT" minOccurs="0" maxOccurs="unbounded">

我错过了maxOccurs="unbounded"属性

返回的XDocument.Validate元素具有无效的子元素

1 个答案: