CN110891053A - Method for establishing communication connection between android APP and operating system based on local area network - Google Patents
Method for establishing communication connection between android APP and operating system based on local area network Download PDFInfo
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- CN110891053A CN110891053A CN201911112798.8A CN201911112798A CN110891053A CN 110891053 A CN110891053 A CN 110891053A CN 201911112798 A CN201911112798 A CN 201911112798A CN 110891053 A CN110891053 A CN 110891053A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/546—Message passing systems or structures, e.g. queues
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
- H04L67/145—Termination or inactivation of sessions, e.g. event-controlled end of session avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/34—Selective release of ongoing connections
- H04W76/36—Selective release of ongoing connections for reassigning the resources associated with the released connections
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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]
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Abstract
The invention discloses a method for establishing communication connection between an android APP and an operating system based on a local area network, which comprises the following seven steps: step one, starting a Socket server to monitor, and step two, authorizing the local area network to connect by the server; step three, generating a two-dimensional code picture; step four, the android device scans two-dimensional code connection; step five, the local system stores the connection information; step six, heartbeat detection; the Socket connection cannot have data transmission for a long time, and the APP on the android device of the user side sends idle data to the local server every 20 seconds when the connection is idle so as to keep the long connection; and step seven, disconnecting. The Android equipment can be connected with a Windows or macOS system through a WIFI technology when no USB line exists, and data on the mobile phone is transmitted to the Windows or macOS operating system through Wifi of a local area network.
Description
Technical Field
The invention relates to application program development applied to Windows or macOS, belongs to cross-platform technology, and particularly relates to a method for establishing communication connection between an android APP and an operating system based on a local area network.
Background
Generally, an android mobile phone needs to store mobile phone information and file data transmitted to windows (macos), that is, an APP needs to be installed on the android, then local software is installed on windows (macos), then the local software is connected with the mobile phone APP and transmits the mobile phone data, user data can be backed up to an external network social platform through a mobile phone line, or some social software can backup the user data to the external network social platform, and then the backup is downloaded to the local after the local software logs in the external network.
In the prior art, most of mobile phone lines are in communication connection through adb tools, and mobile phone lines are needed; connecting through the extranet requires access to the extranet or registration to become a member.
In the prior art, an android APP transmits data such as pictures, videos or contacts in a mobile phone to Windows or macOS through a USB cable, but the android mobile phone cannot transmit files to Windows without the USB cable.
The disadvantages of the prior art are reflected in the following points:
1. the technology of connecting the local system through the mobile phone line requires that a user can connect the local system with the mobile phone line, and in addition, a mobile phone driver needs to be installed.
2. The mode of connecting through the extranet needs the local machine to log in the account, and is unsafe. And the local system can not be connected if the intranet can not access the external network.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a method for establishing communication connection between an android APP and an operating system based on a local area network. The Android device can be connected with a Windows or macOS system through a WIFI technology when no USB line exists, and data on the mobile phone is transmitted to the Windows or macOS operating system through Wifi of a local area network.
In order to solve the technical problem, the invention is realized by the following scheme: the invention discloses a method for establishing communication connection between an android APP and an operating system based on a local area network, which comprises the following steps:
step one, starting a Socket server to monitor;
starting a Socket server by an operating system Windows or macOS end, and monitoring the connection of a local area network accessing to a local system;
step two, the server authorizes the connection in the local area network;
the Windows system starts a Socket service to receive external service connection and authorizes external user side android equipment to be connected and accessed, and the user side android equipment applies for authorized connection to the Windows system; the Socket service at the macOS terminal does not need to be authorized to be directly connected with the android device at the user terminal;
step three, generating a two-dimensional code picture;
the android device of the user side obtains the IP address of the machine and the port of the server, and the two-dimensional code picture identification is generated through the character string of the IP port;
step four, the android device scans two-dimensional code connection;
installing an App for connection by using android equipment at a user side, and identifying an IP and a service port of the local machine by scanning the two-dimensional code picture identification, and then performing socket connection with a local system;
step five, the local system stores the connection information;
after receiving the socket connection of the user side android device, the local system stores the connection handle of the socket and the IP address of the user side android device as device identification, and adds the connection into a device queue for the next information transmission;
step six, heartbeat detection;
the Socket connection cannot have data transmission for a long time, and when the connection is idle, the APP on the android device of the user side can generate heartbeat detection every 20 seconds, namely, idle data is sent to the local server so as to keep long connection;
step seven, disconnecting;
and when the communication is disconnected, the Socket server of the local system closes the connection of the android device at the user end, removes the connected android device at the user end from the device queue, and releases the resources so as to continue the connection next time.
Furthermore, after the local system is connected with one device, the local server continues to monitor new connection requests of other devices, and the local server can support the android devices of multiple user terminals to be connected with the local system.
Further, in a lan, the local system needs to start a socket listening connection.
Further, the android device end of the user side must install the APP for connection, the two-dimensional code scanning module with the two-dimensional code scanning function is arranged in the APP, and the local system is connected through the IP and the port of the two-dimensional code picture identification local system scanned by the two-dimensional code scanning module.
Furthermore, the local system can perform multi-device connection through the IP identification of the android device at the user side and the storage device information.
Compared with the prior art, the invention has the beneficial effects that: the invention aims to solve the technical method and the model for connecting equipment under the condition that no mobile phone line exists or no external network can be accessed, and the equipment is connected through local area network WIFI (wireless fidelity), the local area network WIFI does not need to access the external network, only the mobile phone WIFI and a local system are in the same network segment, the connection speed of the mobile phone line can be kept through the WIFI connection based on the local area network, and the aim of data safety can be fulfilled without accessing the external network.
The invention also has the following beneficial effects:
1. according to the method for establishing the communication connection between the android APP and the operating system based on the local area network, the APP on the android equipment at the user end can be connected with the local system without a mobile phone line, and therefore the equipment can be connected under the condition of lacking a data line.
2. The method for establishing the communication connection between the local area network-based android APP and the operating system does not need to be connected with an external network, and can prevent data leakage.
3. According to the method for establishing the communication connection between the local area network-based android APP and the operating system, characters do not need to be manually input in the connection process, and the connection is completed by scanning the two-dimensional code.
4. The method for establishing the communication connection between the android APP and the operating system based on the local area network carries out equipment management by saving the Identification (IP) and the connection handle of the connected equipment, and can support a plurality of android equipment APPs to be connected to a local system at the same time.
Drawings
Fig. 1 is a schematic block diagram of a method for establishing a communication connection between an android APP based on a local area network and an operating system according to the present invention.
FIG. 2 is a schematic diagram of a first step of the present invention.
FIG. 3 is a schematic diagram of step two of the present invention.
FIG. 4 is a schematic diagram of step three of the present invention.
FIG. 5 is a schematic diagram of step four of the present invention.
Fig. 6 is a schematic diagram of step five of the present invention.
Fig. 7 is a schematic diagram of step six of the present invention.
Fig. 8 is a schematic diagram of step seven of the present invention.
Fig. 9 is a schematic diagram of an embodiment of the present invention in embodiment 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is more clearly and clearly defined. It should be apparent that the described embodiments of the present invention are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1, the specific structure of the present invention is as follows:
referring to fig. 1-8, a method for establishing a communication connection between an android APP based on a local area network and an operating system according to the present invention includes the following steps:
step one, starting a Socket server to monitor;
(as shown in fig. 2) the Windows or macOS end of the operating system starts a Socket server to monitor the connection of the local system accessed by the local area network;
step two, the server authorizes the connection in the local area network;
(as shown in fig. 3), the Windows system starts the Socket service to receive the external service connection and authorize and allow the external user-side android device to access, and the user-side android device applies for the authorized connection to the Windows system; the Socket service at the macOS terminal does not need to be authorized to be directly connected with the android device at the user terminal;
step three, generating a two-dimensional code picture;
(as shown in fig. 4), the android device at the user side obtains the local IP address and the server port, and the two-dimensional code picture identification is generated through the character string of the IP: port;
step four, the android device scans two-dimensional code connection;
(as shown in fig. 5), installing an App for connection of android equipment at a user side, and identifying an IP and a service port of a local machine by scanning the two-dimensional code picture identifier, and then performing socket connection with a local system;
step five, the local system stores the connection information;
(as shown in fig. 6), after receiving the socket connection of the user-side android device, the local system stores the connection handle of the socket and the IP address of the user-side android device as device identifiers, and adds the connection to a device queue for subsequent information transmission;
step six, heartbeat detection;
(as shown in fig. 7), the Socket connection cannot have data transmission for a long time, and when the connection is idle, the APP on the user-side android device may perform heartbeat detection once every 20 seconds, that is, send null data to the local server, so as to maintain the long connection;
step seven, disconnecting;
(as shown in fig. 8), when the communication is disconnected, the Socket server of the local system closes the connection of the user-side android device, removes the connected user-side android device from the device queue, and releases the resource for the next connection.
A preferred technical solution of this embodiment: after the local system is connected with one device, the local server continues to monitor new connection requests of other devices, and the local server can support the android devices of multiple user terminals to be connected with the local system.
A preferred technical solution of this embodiment: in a local area network, a local system needs to start a socket listening connection.
A preferred technical solution of this embodiment: the user side android device end is required to be provided with an APP for connection, a two-dimensional code scanning module with a two-dimensional code scanning function is arranged in the APP, and the local system is connected through the IP and the port of the two-dimensional code picture identification local system.
A preferred technical solution of this embodiment: the local system can perform multi-device connection through the IP identification of the android device of the user side and the storage device information.
Example 2:
as shown in fig. 9, fig. 9 is a schematic diagram of an embodiment of the present invention in implementation 2.
-8.1 creating a new command line project, creating a Socket duplex service in C + + language, i.e. sending or receiving messages, then querying a local address and an idle port, and then creating a Socket listening server S-1.
-8.2 when the Socket server S-1 is started, determining whether the system allows to start receiving and sending messages to the outside, if not, requesting the system to grant permission for access, and opening an external Socket port for message admission authorization, otherwise, entering a loop to monitor the access of new devices.
-8.3 before the Socket server S-1 enters the cycle of listening to new connections, a two-dimensional code picture S2 is generated in such a format (IP: port), and then this picture is automatically opened and displayed on the desktop.
Opening an android APP at a point 8.4, detecting whether the local area network is located, starting a function of scanning the two-dimensional code if the local area network is located, manually scanning the two-dimensional code S2, obtaining an IP and a port of the local system, and performing Socket connection.
8.5 after receiving the message that the connection of the android APP is successful, the local server S-1 stores the key value pair IP < - > connection handle in a queue S3, so as to conveniently manage the connection of a plurality of devices.
8.6 when the android APP communicates with the local server, the APP sends a message a1 to the local server S-1, and the local server receives the message of the existing device, searches for a corresponding device identifier, i.e., an IP, through a connection handle, and forwards the device identifier to the device message processing function. When the local server finishes processing the message and needs to return, the message is also returned through the connection handle of the device.
8.7, timing detection is carried out on the android APP for 20 seconds, data transmission is not carried out with the server S-1, and if no data transmission is carried out every more than 20 seconds, a null data packet is sent to the server side so as to maintain long connection.
8.8 when the connection is disconnected, the android APP can directly reconnect to the server S1 through the record and the IP address and port of the local system, so that the communication can continue.
In summary, the present invention is directed to a technical method and a model for connecting devices without a mobile phone line or without accessing an external network, and a method for connecting devices through a local area network WIFI, where the local area network WIFI does not need to access the external network, and only the mobile phone WIFI and a local system need to be in the same network segment, and the WIFI connection based on the local area network can maintain the connection speed of the mobile phone line, and also can achieve the purpose of data security without accessing the external network. According to the method for establishing the communication connection between the android APP and the operating system based on the local area network, the APP on the android equipment at the user end can be connected with the local system without a mobile phone line, and therefore the equipment can be connected under the condition of lacking a data line. The invention does not need to connect an external network and can prevent data leakage. The invention does not need to input characters manually in the connection process, and the connection is completed by scanning the two-dimensional code. The invention manages the device by saving the Identification (IP) and the connection handle of the connected device, and can support a plurality of android devices (APP) to be connected to a local system at the same time.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A method for establishing communication connection between an android APP and an operating system based on a local area network is characterized by comprising the following steps:
step one, starting a Socket server to monitor;
starting a Socket server by an operating system Windows or macOS end, and monitoring the connection of a local area network accessing to a local system;
step two, the server authorizes the connection in the local area network;
the Windows system starts a Socket service to receive external service connection and authorizes external user side android equipment to be connected and accessed, and the user side android equipment applies for authorized connection to the Windows system; the Socket service at the macOS terminal does not need to be authorized to be directly connected with the android device at the user terminal;
step three, generating a two-dimensional code picture;
the android device of the user side obtains the IP address of the machine and the port of the server, and the two-dimensional code picture identification is generated through the character string of the IP port;
step four, the android device scans two-dimensional code connection;
installing an App for connection by using android equipment at a user side, and identifying an IP and a service port of the local machine by scanning the two-dimensional code picture identification, and then performing socket connection with a local system;
step five, the local system stores the connection information;
after receiving the socket connection of the user side android device, the local system stores the connection handle of the socket and the IP address of the user side android device as device identification, and adds the connection into a device queue for the next information transmission;
step six, heartbeat detection;
the Socket connection cannot have data transmission for a long time, and when the connection is idle, the APP on the android device of the user side can generate heartbeat detection every 20 seconds, namely, idle data is sent to the local server so as to keep long connection;
step seven, disconnecting;
and when the communication is disconnected, the Socket server of the local system closes the connection of the android device at the user end, removes the connected android device at the user end from the device queue, and releases the resources so as to continue the connection next time.
2. The method for establishing communication connection between an android APP based on the local area network and the operating system according to claim 1, wherein in step four, after the local system connects to one device, the local server continues to monitor a new connection request of another device, and the local server can support the android devices of multiple user terminals to connect to the local system.
3. The method of claim 1, wherein in a lan, the local system needs to start a socket listening connection.
4. The method for establishing communication connection between an android APP and an operating system based on a local area network according to claim 1, wherein an APP for connection must be installed at an android device end of a user end, a two-dimensional code scanning module having a function of scanning a two-dimensional code is arranged in the APP, and the two-dimensional code scanning module scans the two-dimensional code picture identifier to identify an IP and a port of a local system, so as to connect the local system.
5. The method for establishing a communication connection between an android APP based on a local area network and an operating system according to claim 1, wherein: the local system can perform multi-device connection through the IP identification of the android device of the user side and the storage device information.
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| CN113489780A (en) * | 2021-07-01 | 2021-10-08 | 读书郎教育科技有限公司 | Method and device for terminal to rapidly and conveniently download data |
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| CN113489780A (en) * | 2021-07-01 | 2021-10-08 | 读书郎教育科技有限公司 | Method and device for terminal to rapidly and conveniently download data |
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