如何使用Java知道网络打印机的状态？

Question

To check the current status of the default printer we can using a Java API. we need to over right attributeUpdate method.

@Override
    public void attributeUpdate(PrintServiceAttributeEvent psae)
    {

        Attribute[] att;
        att = psae.getAttributes().toArray();
        for (Attribute attribute : att)
            {
                System.out.println(attribute.toString());
            }
    } 

But My Question here is will it send the request to physical printer and give us response or just check the driver installation form our local machine and give us the status? If its from local machine, how can i send the request to physical printer and get the response?

Answer 1

It will just query the local machine to determine attributes. If you want to actually send a packet, then you should use snmp4j or LPR