CN106060959B - Method and device for preventing network connection message from being retransmitted and android system - Google Patents
Method and device for preventing network connection message from being retransmitted and android system Download PDFInfo
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- CN106060959B CN106060959B CN201610687487.4A CN201610687487A CN106060959B CN 106060959 B CN106060959 B CN 106060959B CN 201610687487 A CN201610687487 A CN 201610687487A CN 106060959 B CN106060959 B CN 106060959B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
The invention is suitable for the technical field of communication, and provides a method and a device for preventing network connection message from being retransmitted and an android system, wherein the method comprises the following steps: receiving a broadcast with a changed network; judging the connection state of the current network; when the network normal connection is judged, judging whether a network normal connection message is established or not; and when the judgment result is no, creating and sending a network normal connection message. The invention detects the network condition in real time, sends out the broadcast of the network change in time when the network changes, and sends the normal network connection message only when the normal network connection message is determined not to be sent when the current network is judged to be normally connected, thereby preventing the network connection message from being retransmitted.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a method and a device for preventing network connection message from being retransmitted and an android system.
Background
wifi is a technology that can connect terminals such as personal computers, handheld devices (PAD, mobile phones) to each other in an unlimited manner. The WiFi device serves as a wireless connection device, and the WiFi P2P connection method enables the WiFi device to be directly connected, so that operations such as printing, sharing synchronization and the like are facilitated. WiFi devices can complete one-to-one connections or connect together as a group. The one-to-one connection is a common WiFi direct connection application, and can perform operations such as data exchange and application sharing
When a mobile terminal (e.g., an android system) connects to a WiFi network, the system generally sends connection status information, such as a connection success message when the connection is successful and a connection unsuccessful message when the connection is unsuccessful. However, after wifi network connection is successful, sometimes millisecond-level network connection messages are continuously sent twice, which may cause some applications to execute the same task twice in the process of receiving the network connection messages twice, further cause an inaccurate condition of the mobile terminal, and even cause application program crash of the mobile terminal.
Disclosure of Invention
The embodiment of the invention provides a method and a device for preventing network connection message from being retransmitted and an android system, aiming at solving the problem that network connection messages occur for many times in the prior art.
The embodiment of the invention is realized in such a way that the method for preventing the network connection message from being retransmitted comprises the following steps:
receiving a broadcast with a changed network;
judging the connection state of the current network;
when the network normal connection is judged, judging whether a network normal connection message is established or not;
and when the judgment result is no, creating and sending a network normal connection message.
Preferably, when the determination is negative, the creating and sending the network normal connection message specifically includes:
creating a network normal connection message, wherein the network normal connection message carries a delay indication;
and waiting for a preset time length according to the delay indication, and sending out a broadcast corresponding to the created network normal connection message when the message of network disconnection is not received in the preset time length.
Preferably, when the message of network disconnection is not received within the preset time period, sending the message of network normal connection specifically includes:
judging whether a message of network disconnection is received within the preset time length;
if not, sending out the normal network connection message;
and if so, not sending the normal network connection message.
Preferably, the determining the connection state of the current network specifically includes:
calling a native network object of an Android system;
judging whether the connection attribute of the network object is true;
when the judgment result is true, the current network connection is normal;
and when the judgment result is false, the current network is not connected.
The present invention also provides an apparatus for preventing network connection message retransmission, comprising: receiving module, the control module who is connected with receiving module, wherein:
the receiving module is used for receiving the broadcast with the changed network and judging the connection state of the current network;
and the control module is used for judging whether the normal network connection message is established or not when judging that the network is normally connected, and establishing and sending the normal network connection message when the normal network connection message is not established.
Preferably, the control module comprises: control element and with the processing unit that control element is connected, wherein:
the control element is used for creating a network normal connection message and sending the created network normal connection message to the processing unit, wherein the network normal connection message carries a delay indication;
and the processing unit is used for waiting for a preset time period according to the delay indication and sending out the broadcast of the normal connection of the network when the message of the network disconnection is not received within the preset time period.
Preferably, the receiving module includes: the device comprises a receiving unit, a calling unit connected with the receiving unit and an attribute judging unit connected with the calling unit, wherein:
a receiving unit for receiving a broadcast in which a network is changed;
the retrieval unit is used for retrieving the native network object of the android system;
the attribute judging unit is used for judging whether the connection attribute of the network object is true or not, and if so, the current network connection is normal; and when the judgment result is false, the current network is not connected.
Preferably, the receiving module further comprises:
and the judging control unit is used for judging whether the control element is opened or not, and controlling the control element to be opened when the judgment is negative.
Preferably, the receiving module further comprises:
and the feedback unit is connected with the attribute judging unit and used for sending a feedback message to the processing unit when the connection attribute of the network object is judged to be false so as to control the processing unit to delete the received message of normal network connection.
The present invention also provides an android system, including: an apparatus for preventing retransmission of network connection messages, the apparatus comprising: receiving module, the control module who is connected with receiving module, wherein:
the receiving module is used for receiving the broadcast with the changed network and judging the connection state of the current network; and the control module is used for judging whether the normal network connection message is established or not when judging that the network is normally connected, and establishing and sending the normal network connection message when the normal network connection message is not established.
In the embodiment of the invention, the network condition is detected in real time, when the network changes, the broadcast of the network change is sent out in time, if the current network is judged to be normally connected, the normal network connection message is sent only when the normal network connection message is not established and sent, and the retransmission of the network connection message can be prevented.
Drawings
Fig. 1 is a method for preventing a network connection message from being retransmitted according to a first embodiment of the present invention;
fig. 2 is a detailed flowchart of step S4 of a method for preventing network connection message from being retransmitted according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a step S42 of a method for preventing a network connection message from being retransmitted according to a first embodiment of the present invention;
fig. 4 is a block diagram of an apparatus for preventing retransmission of a network connection message according to a second embodiment of the present invention;
fig. 5 is a detailed block diagram of a control module 2 of an apparatus for preventing retransmission of a network connection message according to a second embodiment of the present invention;
fig. 6 is a detailed structural diagram of a receiving module 1 of an apparatus for preventing a network connection message from being retransmitted according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment of the present invention, a method for preventing network connection message from being retransmitted includes: receiving a broadcast with a changed network; judging the state of the current network; when the network normal connection is judged, judging whether a network normal connection message is established or not; and when the judgment result is no, creating and sending a network normal connection message.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The first embodiment is as follows:
fig. 1 illustrates a method for preventing network connection message from being retransmitted according to a first embodiment of the present invention, including:
step S1, receiving the broadcast with changed network;
specifically, the method for preventing network connection message retransmission described in this embodiment is based on an Android system, where the Android system monitors the current network status in real time, and sends out a native broadcast of a network change when the network changes;
step S2, judging the connection state of the current network;
after receiving a native broadcast of the android system, judging the connection state of the current network, specifically, acquiring a native network object of the android system, judging whether the connection attribute of the network object is true, when the connection attribute is judged to be true, determining that the current network is normally connected, and when the connection attribute is false, determining that the current network is not connected. For example: after receiving the broadcast with the changed network, calling a native network object (networklnfo) of the android system, calling a connection attribute (isAvailable) of the network object, determining that the current network is normally connected when the connection attribute is true (true), and turning to step S3; when the connection attribute is false (false), the current network is determined to be unconnected, and no subsequent process is performed.
Step S3, when judging the network is normally connected, judging whether the network normal connection message is established;
when the network is judged to be normally connected, whether the normal network connection message is established at present needs to be further judged. And when judging that the normal network connection message is established, not performing subsequent processes. When the network normal connection message is not created, go to step S4;
in a preferred embodiment of this embodiment, whether a message of a normal network connection has been created currently may be determined by determining whether a current control element is in an open state, where the control element is an element of an Android system, and is used to create the message of the normal network connection, and when the message of the normal network connection needs to be created, the control element is opened, and after the message of the normal network connection is sent out, the control element is reset and closed. When the control element is in an open state, the message of the normal network connection is established, when the control element is open, the message of the normal network connection is established, and when the control element is closed, the message of the normal network connection is not established. When the control element is not opened, it indicates that the network normal connection message is not currently created, and at this time, it is required to control to open the control element to create the network normal connection message.
And step S4, creating and sending a network normal connection message.
Specifically, a network normal connection message is created and sent out.
Preferably, as shown in fig. 2, a detailed flowchart of step S4 of the method for preventing a network connection message from being retransmitted according to the first embodiment of the present invention is provided, where the step S4 specifically includes:
step S41, creating a normal network connection message;
specifically, the network normal connection message carries a delay indication and a broadcast corresponding to the network normal message, where the delay indication is an indication that a preset duration needs to be waited for to send the corresponding broadcast.
Step S42, waiting for a preset duration according to the delay indication, and sending out a broadcast corresponding to the created network normal connection message when the preset duration does not receive the network disconnection message.
In this embodiment, the created normal network connection message carries an indication that the transmission needs to be delayed, where the indication includes a preset duration that needs to be delayed, and the preset duration may be set according to an actual situation, for example, 1ms, 2ms, 3ms, 5ms, and the like, which is not limited herein.
Further preferably, as shown in fig. 3, which is a specific flowchart of step S42 of the method for preventing the network connection message from being retransmitted according to the first embodiment of the present invention, the step S42 specifically includes:
step S421, judging whether a message of network disconnection is received within the preset time length, and if so, turning to step S422; if not, go to step S423;
step S422, the network normal connection message is not sent;
specifically, when a message of network disconnection is received, the message carries an instruction to delete the received normal network connection message, the normal network connection message is deleted based on the instruction, and the normal network connection message is not sent.
Step S423, sending out the normal network connection message;
specifically, whether a new message is received or not is continuously monitored within the waiting preset time, whether a network disconnection message is received or not is judged within the preset time, when the network disconnection message is received, the network connection is failed at the moment, a message of normal network connection is not sent, and when the network disconnection message is not received, a message of normal network connection is sent. In this embodiment, after the network normal connection message is created, the network normal connection message is not directly sent but is waited for a preset time length, and the network normal connection message is sent only when the message of network disconnection is not received within the preset time length, so that the phenomenon that the network normal connection message is received when the network is suddenly disconnected is avoided, and the accuracy of network connection broadcasting can be improved to a certain extent.
The invention detects the network condition in real time, sends out the broadcast of the network change in time when the network changes, if the current network normal connection is judged, the network normal connection message is sent only when the network normal connection message is not established and sent, and the retransmission of the network connection message can be prevented.
In addition, the preset time length is waited before the network normal connection message is sent, and the network normal connection message is sent only if the message of the network disconnection is not received, so that the false sending of the network connection message can be prevented, and the accuracy of the network connection message feedback is improved.
Example two:
fig. 4 shows an apparatus for preventing network connection message from being retransmitted according to a second embodiment of the present invention, which includes: receiving module 1 and control module 2 connected with it, wherein:
the receiving module 1 is used for receiving the broadcast of the change of the network and judging the state of the current network;
specifically, the receiving module 1 monitors the current network status in real time, and when the network changes, the Android system sends out a primary broadcast of the network change;
and the control module 2 is used for judging whether a network normal connection message is created or not when judging that the network is normally connected, and creating and sending the network normal connection message when the network normal connection message is not created.
Preferably, the method for preventing network connection message retransmission described in this embodiment is based on an Android system, and after receiving a native broadcast of an Android system, the receiving module 1 determines a state of a current network, specifically, acquires a native network object of the Android system, determines whether a connection attribute of the network object is true, determines that the current network is normally connected when the connection attribute is determined to be true, and determines that the current network is not connected when the connection attribute is false.
In a preferred aspect of this embodiment, as shown in fig. 5, a specific structure diagram of a control module 2 of an apparatus for preventing network connection message from being retransmitted according to a second embodiment of the present invention is provided, where the control module 2 specifically includes: a control unit 21 and a processing unit 22, wherein:
a control element 21, configured to create a network normal connection message, and send the created network normal connection message to the processing unit 22, where the network normal connection message carries a delay indication;
specifically, the network normal connection message carries a delay indication and a broadcast corresponding to the network normal message, where the delay indication is an indication that a preset duration needs to be waited for to send the corresponding broadcast.
And the processing unit 22 is configured to wait for a preset time period according to the delay indication, and send out a broadcast corresponding to a broadcast that the network is normally connected when the message of network disconnection is not received within the preset time period.
In this embodiment, the created normal network connection message carries an indication that the transmission needs to be delayed, where the indication includes a preset duration that needs to be delayed, and the preset duration may be set according to an actual situation, for example, 1ms, 2ms, 3ms, 5ms, and the like, which is not limited herein.
In another preferred embodiment of this embodiment, as shown in fig. 6, a specific structure diagram of a receiving module 1 of an apparatus for preventing network connection message from being retransmitted provided by a second embodiment of the present invention is shown, where the receiving module 1 specifically includes: a receiving unit 10, a calling unit 11 connected with the receiving unit 10, and an attribute judging unit 12 connected with the receiving unit, wherein:
a receiving unit 10 for receiving a broadcast in which a network change occurs;
the invoking unit 11 is used for invoking a native network object of the android system;
an attribute determining unit 12, configured to determine whether a connection attribute of the network object is true, and if the connection attribute is true, it indicates that the current network connection is normal; and when the judgment result is false, the current network is not connected.
After receiving a native broadcast of the android system, judging the state of the current network, specifically, calling a native network object of the android system by the calling unit 11, judging whether the connection attribute of the network object is true or not by the attribute judging unit 12, determining that the current network is normally connected when judging that the connection attribute is true, and determining that the current network is not connected when judging that the connection attribute is false. For example: after receiving a broadcast of a network change, calling a native network object (networklnfo) of an android system, calling a connection attribute (isAvailable) of the network object, determining that the current network is normally connected when the connection attribute is true (true), and determining that the current network is not connected when the connection attribute is false (false).
In a further preferred embodiment of this embodiment, the receiving unit 1 further includes:
and a judgment control unit 13 connected to the attribute judgment unit 12 for judging whether the control member 21 is opened, and when judged not, controlling the control member 21 to be opened.
In a preferred embodiment of the present embodiment, whether a message of a normal network connection has been created currently may be determined by determining whether the current control element 21 is in an open state, where the control element 21 is an element of an Android system, and is used to create a normal network connection message, and when the normal network connection message needs to be created, the control element 21 is opened, and after the normal network connection message is sent out, the control element 21 is reset and closed. When the control element 21 is in an open state, indicating that a network normal connection message has been created, the control element 21 opens to create a network normal connection message, and when the control element 21 closes, does not create a network normal connection message. When the control element 21 is not turned on, indicating that the network normal connection message is not currently created, it is necessary to control to turn on the control element 21 to create the network normal connection message.
In a further preferable embodiment of the present embodiment, the receiving unit 1 further includes:
and a feedback unit 14 connected to the attribute judging unit 12, for sending a feedback message to the processing unit 22 when judging that the connection attribute of the network object is false, so as to control the processing unit 22 to delete the stored message of normal network connection.
For ease of understanding, the working principle of the device of the present embodiment is described in detail below:
when the network connection changes, the Android system sends out a broadcast of the network change, the receiving unit 10 receives the broadcast and feeds the broadcast back to the invoking unit 11, the invoking unit 11 invokes an original network object of the Android system and feeds the object back to the attribute judging unit 12, the attribute judging unit 12 judges the current network status, when the network normal connection is judged, the current network status is fed back to the judging control unit 13, the judging control unit 13 judges whether the control element 21 is currently in an open state or not based on the received feedback, when the control element 21 is in the open state, no instruction is sent to the control element 21, and when the control element 21 is not in the open state, the control element 21 is controlled to be opened, and an instruction for creating a current network normal connection message is sent to the control element 21. After the control element 21 is turned on, a network normal connection message is created based on the received instruction, and the message is sent to the processing unit 22, in a preferred embodiment of the present embodiment, the network normal connection message carries a delay indication, and the delay indication specifically indicates that the processing unit 22 delays to send the network normal connection message for a preset time. After receiving the network normal connection message, the processing unit 22 waits for a preset time duration according to the delay indication, and if a network disconnection message is not received within the preset time duration, sends the network normal connection message out (specifically, feeds back the network normal connection message to the user, for example, feeds back the network normal connection message to the user through an interface of the mobile terminal).
When the network is disconnected, the receiving unit 10 of the receiving module 1 receives the network change broadcast and feeds back the network change broadcast to the invoking unit 11, the invoking unit 11 invokes a native network object of the android system, if the attribute judging unit 12 judges that the connection attribute of the network object is false, the network object is not fed back to the judging control unit 13, but fed back to the feedback unit 14, the feedback unit 14 sends a deletion instruction to the processing unit 22, and the processing unit 22 deletes the received network normal connection message which is not sent based on the deletion instruction, without executing the sending step. The receiving module 1 is then reset and the control element 21 is switched off and the network connection status is monitored again.
The invention detects the network condition in real time, sends out the broadcast of the network change in time when the network changes, and sends the normal network connection message only when the normal network connection message is determined not to be established when the current network is judged to be normally connected, thereby preventing the retransmission of the network connection message.
The present invention further provides an android system, which includes a device for preventing network connection message from being retransmitted in addition to the structure and function of a common android system, and the structure and operation principle of the device for preventing network connection message from being retransmitted are substantially the same as those of the above embodiments, and reference may be made to the above embodiments specifically, and details are not repeated here.
In the embodiment of the invention, the network connection condition is monitored in real time, the android native broadcast is sent out in time when the network changes, and the normal network connection message is sent only when the normal network connection message is determined not to be created currently when the normal network connection is judged, so that the message can be prevented from being retransmitted for many times.
In addition, the waiting for the preset time duration is required before the network normal connection message is sent, and the network normal connection message occurs again when the network disconnection message is not received within the preset time duration, so that the accuracy of the network connection message can be improved, the phenomenon that the network is disconnected suddenly after the network connection and the network normal connection message is received by a user is prevented, and the problem that the application program of the mobile terminal is crashed due to the inaccuracy of the network connection message is avoided.
And moreover, the control element is arranged to create the normal network connection message, and whether the normal network connection message is created or not is judged by judging the closing or opening of the control element, so that the implementation process is simple, and the judgment accuracy can be improved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation.
Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for preventing retransmission of network connection messages, comprising:
receiving a broadcast with a changed network;
judging the connection state of the current network;
when the network normal connection is judged, judging whether a network normal connection message is established or not;
and when the judgment result is no, opening a control element in the system, creating and sending a normal network connection message, closing the control element after the normal network connection message is sent out, and not creating the normal network connection message when the control element is closed.
2. The method according to claim 1, wherein when the determination is negative, the creating and sending the network normal connection message specifically includes:
creating a network normal connection message, wherein the network normal connection message carries a delay indication;
and waiting for a preset time length according to the delay indication, and sending out a broadcast corresponding to the created network normal connection message when the preset time length does not receive the network disconnection message.
3. The method according to claim 2, wherein sending the network normal connection message when the network disconnection message is not received within a preset time period specifically comprises:
judging whether a message of network disconnection is received within the preset time length;
if not, sending out the normal network connection message;
and if so, not sending the normal network connection message.
4. The method according to claim 1, wherein the determining the connection status of the current network specifically comprises:
calling a native network object of an Android system;
judging whether the connection attribute of the network object is true;
when the judgment result is true, the current network connection is normal;
and when the judgment result is false, the current network is not connected.
5. An apparatus for preventing retransmission of network connection messages, comprising: receiving module, the control module who is connected with receiving module, wherein:
the receiving module is used for receiving the broadcast with the changed network and judging the connection state of the current network;
and the control module is used for judging whether a network normal connection message is created or not when judging that the network is normally connected, opening a control element in the system when the network normal connection message is not created, creating and sending the network normal connection message, closing the control element after the network normal connection message is sent out, and not creating the message of the network normal connection when the control element is closed.
6. The apparatus of claim 5, wherein the control module comprises: control element and with the processing unit that control element is connected, wherein:
the control element is used for creating a network normal connection message and sending the created network normal connection message to the processing unit, wherein the network normal connection message carries a delay indication;
and the processing unit is used for waiting for the preset time length according to the delay indication, and sending out the broadcast corresponding to the created network normal connection message when the message of network disconnection is not received in the preset time length.
7. The apparatus of claim 6, wherein the receiving module comprises: the device comprises a receiving unit, a calling unit connected with the receiving unit and an attribute judging unit connected with the calling unit, wherein:
a receiving unit for receiving a broadcast in which a network is changed;
the retrieval unit is used for retrieving the native network object of the android system;
the attribute judging unit is used for judging whether the connection attribute of the network object is true or not, and if so, the current network connection is normal; and when the judgment result is false, the current network is not connected.
8. The apparatus of claim 6, wherein the receiving module further comprises:
and the judging control unit is used for judging whether the control element is opened or not, and controlling the control element to be opened when the judgment is negative.
9. The apparatus of claim 7, wherein the receiving module further comprises:
and the feedback unit is connected with the attribute judging unit and used for sending a feedback message to the processing unit when the connection attribute of the network object is judged to be false so as to control the processing unit to delete the received message of normal network connection.
10. An android system comprising means for preventing retransmission of network connection messages according to any of claims 5 to 9.
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