Device capability invocation method, widget device, server

A widget device, comprising:

• a receiving unit, configured to receive a device capability invocation request sent by a widget, wherein the device capability invocation request carries conditions of a device capability that needs to be invoked;
• and
• a sending unit, configured to send the device capability invocation request to a device capability server through a widget server, wherein the device capability invocation request instructs the device capability server to search an overall device capability database for the device capability compliant with the conditions and invoke the found device capability, wherein
• the receiving unit is further configured to receive an invocation result sent by the device capability server;
• and the sending unit is further configured to send the invocation result received by the receiving unit to the widget.

A server, comprising:

• a receiving unit, configured to receive a device capability invocation request sent by a widget device through a widget server, wherein the device capability invocation request carries conditions of a device capability that needs to be invoked;
• a searching unit, configured to search an overall device capability database for the device capability compliant with the conditions;
• an invoking unit, configured to invoke the device capability found by the searching unit;
• and
• a sending unit, configured to send an invocation result received by the receiving unit to the widget device, wherein
• the receiving unit is further configured to receive the invocation result that is returned after the device capability found by the searching unit is invoked by the invoking unit.