[英]ONVIF - beginning of Device discovery
我打算做一個 java onvif 應用程序。 我創建了一個新項目並從 devicemgmt.wsdl 生成了源代碼。還從 remote discovery.wsdl 生成了類。 如何使用這些生成的類發現網絡中的設備? 謝謝你的幫助。
devicemgmt.wsdl 與發現過程無關,ONVIF 發現過程基於http://specs.xmlsoap.org/ws/2005/04/discovery它使用 SOAP over UDP。
如果您使用的是 apache-cxf,則可以使用
org.apache.cxf.ws.discovery.WSDiscoveryClient
一個簡單的示例代碼可能是:
import java.util.List;
import javax.xml.ws.EndpointReference;
import org.apache.cxf.ws.discovery.WSDiscoveryClient;
public class Main
{
public static void main(String[] args)
{
WSDiscoveryClient client = new WSDiscoveryClient();
client.setVersion10(); // use WS-discovery 1.0
client.setDefaultProbeTimeout(1000); // timeout 1s
System.out.println("Probe:" + client.getAddress());
List<EndpointReference> references = client.probe();
System.out.println("Nb answsers:" + references.size());
for (EndpointReference ref : references)
{
System.out.println(ref.toString());
}
}
}
我遇到了同樣的問題,CXF 太大了,請檢查我的方法: https ://github.com/thhart/javaWsDiscovery 上的 JavaWsDiscovery。
它使用 Onvif 標准建議的簡單網絡探測器來識別本地網絡上的任何設備,以下行將返回所有可用設備:
final Collection urls = DeviceDiscovery.discoverWsDevicesAsUrls("^http$", ". onvif. ");
簡單完整的例子純Java
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.SocketTimeoutException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author Ronald
*/
public class TestDiscoveryPureJava {
public static void main(String cor[]) throws SocketException{
discoverWsDevices();
}
public static void discoverWsDevices() throws SocketException {
final int WS_DISCOVERY_PORT = 3702;
final String WS_DISCOVERY_ADDRESS_IPv4 = "239.255.255.250";
Thread thread = new Thread() {
@Override
public void run() {
final String probe = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><s:Envelope xmlns:s=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:a=\"http://schemas.xmlsoap.org/ws/2004/08/addressing\">\n" +
" <s:Header>\n" +
" <a:Action s:mustUnderstand=\"1\">http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>\n" +
" <a:MessageID>uuid:f0ded492-301a-4891-882b-cb2d7cac2e45</a:MessageID>\n" +
" <a:ReplyTo>\n" +
" <a:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</a:Address>\n" +
" </a:ReplyTo>\n" +
" <a:To s:mustUnderstand=\"1\">urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>\n" +
" </s:Header>\n" +
" <s:Body>\n" +
" <Probe xmlns=\"http://schemas.xmlsoap.org/ws/2005/04/discovery\">\n" +
" <d:Types xmlns:d=\"http://schemas.xmlsoap.org/ws/2005/04/discovery\" xmlns:dp0=\"http://www.onvif.org/ver10/network/wsdl\">dp0:Device</d:Types>\n" +
" </Probe>\n" +
" </s:Body>\n" +
"</s:Envelope>";
DatagramSocket datagramSocket = null;
try {
datagramSocket = new DatagramSocket();
datagramSocket.setBroadcast(true);
datagramSocket.setSoTimeout(9000);
} catch (SocketException e) {
System.out.println( "In discoverWsDevices datagram socket exception" + datagramSocket);
e.printStackTrace();
}
byte[] soapMessageByteArray = probe.getBytes();
DatagramPacket datagramPacketSend = null;
try {
datagramPacketSend = new DatagramPacket(
soapMessageByteArray,
soapMessageByteArray.length,
InetAddress.getByName(WS_DISCOVERY_ADDRESS_IPv4),
WS_DISCOVERY_PORT);
} catch (UnknownHostException e) {
System.out.println("Unknown host in send packet");
e.printStackTrace();
}
try {
System.out.println("Send package");
datagramSocket.send(datagramPacketSend);
System.out.println("package sent");
} catch (IOException e) {
System.out.println("In discoverWsDevices datagram socket IOException send " + datagramSocket);
e.printStackTrace();
}
System.out.println("Sending data");
System.out.println(datagramPacketSend.getAddress().getHostName()+":"+WS_DISCOVERY_PORT);
List<ByteArrayInputStream> probeMatches = new ArrayList<>();
while (true) {
byte[] responseMessageByteArray = new byte[9000];
DatagramPacket datagramPacketRecieve = new DatagramPacket(responseMessageByteArray,responseMessageByteArray.length);
try {
System.out.println("Waiting response...");
datagramSocket.receive(datagramPacketRecieve);
} catch (SocketTimeoutException e) {
datagramSocket.close();
System.out.println("In discoverWsDevices datagram socket timeout exception");
break;
} catch (IOException e) {
System.out.println("In discoverWsDevices datagram socket ioexception");
e.printStackTrace();
break;
}
probeMatches.add(new ByteArrayInputStream(datagramPacketRecieve.getData(), 0, datagramPacketRecieve.getLength()));
}
for (ByteArrayInputStream input : probeMatches) {
byte[] bytes = new byte[input.available()];
input.read(bytes, 0, input.available());
String stream = new String(bytes);
System.out.println("stream" + stream);
}
}
};
thread.start();
}
}
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