CN106850805A - A kind of data transmission method and device - Google Patents

Abstract

The invention discloses a data transmission method and device, wherein the method includes: intercepting the request data sent by the browser to the server, and packaging the request data into target data with a specific format; The optimal route between the browser and the server, and transmit the target data to the server through the optimal route; monitor the transmission parameters of the optimal route during data transmission, and when the transmission parameters do not meet the When preset conditions, re-determine the optimal route between the browser and the server, and continue to transmit the untransmitted data in the target data through the re-determined optimal route; when the target data transmission is completed , the server generates feedback response data, and sends the response data to the browser. The data transmission method and device provided in the embodiments of the present invention can increase the rate of data transmission, and improve the success rate and security of data transmission.

Description

A data transmission method and device

technical field

The invention relates to the technical field of network communication, in particular to a data transmission method and device.

Background technique

With the continuous development of network communication technology, the architectural model of network application systems has undergone tremendous changes, and the B/S (Browser/Server, browser/server) architecture based on web browsers has continued to mature. As a container for Web applications, browsers have become an important portal to the Internet due to their strong expressiveness, scalability and compatibility. They can provide people with powerful functions instantly and save development of client software. Web applications generally communicate based on the HTTP application protocol. Limited by the limitations of the traditional TCP transmission protocol and the characteristics of the HTTP protocol at the application layer, it is not ideal for web applications to transmit large data in a weak network environment with high packet loss and high latency. The main performance is low transmission efficiency: due to the WAN congestion control mechanism, WAN packet loss is almost inevitable, and the HTTP protocol based on TCP reliable connection is in a weak network environment. When the network transmission packet loss rate is high, the transmission rate drops significantly. slow.

Contents of the invention

In order to solve the problems in the prior art, embodiments of the present invention provide a data transmission method and device. Described technical scheme is as follows:

In one aspect, the present application provides a data transmission method, the method comprising:

Intercepting the request data sent by the browser to the server, and encapsulating the request data into target data in a specific format, the specific format is defined by a preset transmission protocol;

Judging whether the target data needs to enable the transit service, if not, determine the best route between the browser and the server at the current moment, and transmit the target data to the server through the best route ;

During the data transmission process, the transmission parameters of the optimal route are monitored in real time, and when the transmission parameters do not meet the preset conditions, the optimal route between the browser and the server is re-determined, and the re-determined The optimal route continues to transmit the untransmitted data in the target data;

When the transmission of the target data is completed, the server generates feedback response data and sends the response data to the browser.

Further, before intercepting the request data sent by the browser to the server, the method further includes:

Responding to the connection request sent by the browser, establishing a local proxy connection with the browser;

Call the application programming interface provided by the client where the browser is located to establish a data transmission process.

Further, the method also includes:

An authentication request is sent to the cloud management platform, and a local proxy connection with the browser is allowed to be established only after the authentication request is authenticated by the cloud management platform.

Further, the specific steps of determining the best route between the browser and the server at the current moment include:

In at least one candidate route between the browser and the server, based on the round-trip delay and packet loss rate information of the link, calculate the best route between the browser and the server at the current moment .

Further, the transmission parameters include round-trip delay or packet loss rate; correspondingly, the transmission parameters do not meet the preset conditions include:

The round-trip delay is greater than the preset delay threshold or the packet loss rate is greater than the preset packet loss rate threshold.

Further, after transmitting the target data to the server through the optimal route, the method further includes:

When the transmission path of the best route is interrupted, re-establish the connection between the browser and the server according to the best route; if the reconnection times out, re-determine the connection between the browser and the server The optimal route, and continue to transmit the untransmitted data in the target data through the re-determined optimal route.

Further, after encapsulating the request data into target data with a specific format, the method further includes:

If the target data needs to enable a transfer service, the target data is sent to a local transfer server, and the local transfer server forwards the target data to the server.

Further, the method also includes:

When the browser plug-in is started, it actively sends an authentication request to the cloud management platform. After the authentication request is authenticated by the cloud management platform, it actively obtains a transmission task from the cloud management platform, and then periodically sends a request to the cloud management platform. Obtain the task issued by the cloud management platform; wherein, the transmission task is generated in the following manner:

The server sends an authentication request to the cloud management platform, and after the authentication request is passed by the cloud management platform, the server uploads the transmission task with the browser to the cloud management platform.

On the other hand, the present application also provides a data transmission device, the device comprising:

A format conversion unit, configured to intercept request data sent by the browser to the server, and encapsulate the request data into target data in a specific format, the specific format is defined by a preset transmission protocol;

An optimal route determining unit, configured to determine whether the target data needs to enable a transit service, and if not, determine the optimal route between the browser and the server at the current moment, and send the optimal route to the server transmits the target data;

a route switching unit, configured to monitor the transmission parameters of the optimal route in real time during data transmission, and re-determine the optimal route between the browser and the server when the transmission parameters do not meet the preset conditions , and continue to transmit the untransmitted data in the target data through the re-determined optimal route;

A response data forwarding unit, configured to generate feedback response data from the server and send the response data to the browser when the transmission of the target data is completed.

Further, the device also includes:

A local proxy connection establishing unit, configured to establish a local proxy connection with the browser in response to a connection request sent by the browser;

The transmission process establishing unit is used to call the application programming interface provided by the client where the browser is located to establish a data transmission process.

Further, the device also includes:

The authentication request unit is configured to send an authentication request to the cloud management platform, and only allow to establish a local proxy connection with the browser after the authentication request is authenticated by the cloud management platform.

Further, the device also includes:

A disconnection reconnection unit, configured to re-establish a connection between the browser and the server according to the optimal route when the transmission path of the optimal route is interrupted; if the reconnection times out, re-determine the The optimal route between the browser and the server, and continue to transmit the untransmitted data in the target data through the re-determined optimal route.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: by embedding a plug-in in the browser, the request data sent by the browser to the server can be intercepted, and the high-speed transmission of the request data can be realized through a preset transmission protocol. When transmitting data, the best route can be selected for data transmission to ensure the stability of data transmission. At the same time, the state of the transmission link can be detected in real time during data transmission, and when the state of the link is not good, it can be switched to a link with a better state, thereby reducing the failure rate of data transmission. The authentication verification and transmission encryption mechanism of the cloud management platform allows the browser plug-in and the server to verify the identities of the communication parties. In addition, the data content is encrypted and decrypted through the proprietary transmission protocol during the transmission process to ensure the integrity of the data content. safety. The server can complete the task delivery through the cloud management platform, and then the browser can initiate a request to realize the bilateral data exchange function, and the solution can only be initiated by the browser. It can be seen from the above that the technical solutions provided by the embodiments of the present invention can increase the rate of data transmission and improve the success rate of data transmission.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a flowchart of a data transmission method provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of the framework of the transmission system in Embodiment 1 of the present invention;

3 is a detailed flowchart of data transmission in Embodiment 1 of the present invention;

FIG. 4 is a functional block diagram of a data transmission device provided in Embodiment 2 of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Implementation Mode 1

Referring to FIG. 1 to FIG. 3 , an embodiment of the present application provides a data transmission method, and the method includes the following steps.

S1: Intercept the request data sent by the browser to the server, and encapsulate the request data into target data in a specific format, and the specific format is defined by a preset transmission protocol.

In this embodiment, the plug-in can be embedded in the browser, and the high-speed data transmission between the browser and the server can be realized by the embedded plug-in.

In this embodiment, when the browser is started, the plug-in in the browser can be activated. By enabling the configuration information of the plug-in, the initialization of the plug-in can be completed. A user may input a URL (Uniform Resource Locator, Uniform Resource Locator) in a browser, thereby initiating a request for data to the server.

In this implementation manner, after the user inputs the URL in the browser, a connection request may be initiated to the plug-in. In response to the connection request sent by the browser, the plug-in can establish a local proxy connection with the browser, so that the request data can be sent by proxy. At the same time, the plug-in can also call an application programming interface (Application Programming Interface, API) provided by the client where the browser is located to establish a data transmission process.

In this implementation manner, the request data can be transmitted using a custom preset transmission protocol, so that the use of TCP and UDP transmission protocols can be avoided. Specifically, the plug-in can intercept the request data sent by the browser to the server, and encapsulate the request data into target data in a specific format, wherein the specific format is defined by a preset transmission protocol. The specific format may be the character string contained in the request data and the writing method and order of each character string, so that the default transmission protocol can be loaded in both the browser and the server, so that the specific format can be recognized target data.

In this embodiment, after receiving the target data, the server may perform format conversion on the target data according to a preset transmission protocol to obtain unpacked data.

In an embodiment of the present application, in order to ensure the security of data transmission, the authority authentication of the browser and the server can be performed through the cloud management platform. Specifically, after the plug-in is activated, it can send an authentication request to the cloud management platform. After the authentication request is authenticated by the cloud management platform, the plug-in can establish a local proxy connection with the browser, thereby making the request Data interception and forwarding. Similarly, the server can establish a high-speed transmission channel with the browser only after passing the authentication on the cloud management platform.

In this embodiment, in order to further ensure the security of data transmission, the plug-in can invoke the encryption and decryption module to encrypt the request data according to a preset encryption and decryption algorithm. Specifically, the encryption and decryption algorithm may be, for example, algorithms such as DES (Data Encryption Standard, symmetric algorithm), 3DES, IDEA (International Data Encryption Algorithm, international data encryption algorithm). In this way, after the server receives the data sent by the browser, it can decrypt it in the same way to obtain the decrypted data.

S2: Judging whether the target data needs to enable the transit service, if not, determine the best route between the browser and the server at the current moment, and transmit the data to the server through the best route target data.

In this embodiment, if the target data does not need to enable the transfer service, the target data sent by the plug-in can be directly sent to the server without going through the local transfer server. Specifically, in order to ensure the stability of data transmission, the best route between the browser and the server at the current moment may be determined. The optimal route may include various nodes that the target data passes through during the process of sending the target data from the browser to the server. The best route can be selected from a series of candidate routes. Specifically, in at least one candidate route between the browser and the server, based on the round-trip delay and packet loss rate information of the link, the current time between the browser and the server can be calculated. best route. Specifically, the route with the lowest sum of round-trip delays or the lowest sum of packet loss rates may be used as the best route between the browser and the server at the current moment. In this way, it can be ensured that when the target data is transmitted through the optimal route, it can have a relatively high transmission rate and high transmission stability.

In this implementation manner, when the target data needs to enable a transfer service, the target data may be sent to a local transfer server, and the local transfer server forwards the target data to the server. Specifically, the transmission route between the local transit server and the server may also be determined by means of an optimal route, which will not be repeated here.

In this implementation manner, after the optimal route is determined, the target data may be transmitted to the server through the optimal route.

S3: Monitor the transmission parameters of the optimal route in real time during data transmission, and re-determine the optimal route between the browser and the server when the transmission parameters do not meet the preset conditions, and The determined optimal route continues to transmit the untransmitted data in the target data.

In this embodiment, when data is transmitted according to the best route, the transmission parameters of the best route may be monitored in real time. The transmission parameters include round-trip delay or packet loss rate. In this way, once the network fluctuates, the round-trip delay or packet loss rate of the current transmission can be known in time. When the round-trip delay is greater than the preset delay threshold or the packet loss rate is greater than the preset packet loss rate threshold, it indicates that the transmission parameters do not meet the preset conditions, so that the connection between the browser and the server can be re-determined The optimal route is determined, and the untransmitted data in the target data is continued to be transmitted through the re-determined optimal route. In this way, it can be ensured that during the data transmission process, a high-speed transmission can always be maintained.

In one embodiment of the present application, in order to prevent the suspension of the transmission process caused by the sudden interruption of the transmission link, the function of reconnection after disconnection may be implemented after the link is interrupted. Specifically, when the transmission path of the best route is interrupted, the connection between the browser and the server may be re-established according to the best route. At the same time, the timer for reconnection can be started. If the reconnection times out, the best route between the browser and the server can be re-determined, and the untransmitted part of the target data can be transmitted through the re-determined best route. The data. In this way, the continuity of the transmitted data is guaranteed, and all the data will not be retransmitted when the network is interrupted.

In addition, in this implementation manner, a long connection can be established between the browser and the server, thereby avoiding repeated connection establishment and improving data transmission efficiency.

S4: When the transmission of the target data is completed, the server generates feedback response data, and forwards the response data to the browser.

In this embodiment, when the server receives the target data, it may unpack the target data according to a preset transmission protocol, and may decrypt the unpacked data. After verifying the integrity of the data, the response data can be fed back to the browser, indicating that the transmission task has been completed. In this way, the response data can be returned according to the link of data transmission, so as to be received by the plug-in. The plug-in may forward the response data to the browser, thus ending the current transmission process.

In an embodiment of the present application, in addition to the browser actively sending a transmission request to the server, the server may also actively push a transmission task to the browser. Specifically, when the plug-in is started, it can send an authentication request to the cloud management platform, and after the authentication request is passed by the cloud management platform, it can receive the transmission task pushed by the cloud management platform. Wherein, the transmission task may be uploaded by the server. Specifically, the server can also send an authentication request to the cloud management platform, and after the authentication request is authenticated by the cloud management platform, the server can upload the transmission task with the browser to to the cloud management platform. In the transfer task, the identifier of the browser can be filled, so that the cloud management platform can correctly push the transfer task to the corresponding browser through the identifier of the browser.

Implementation mode two

Please refer to Figure 4, the embodiment of the present application also provides a data transmission device, the device includes:

The format conversion unit 100 is configured to intercept the request data sent by the browser to the server, and encapsulate the request data into target data in a specific format, the specific format is defined by a preset transmission protocol;

The optimal route determination unit 200 is configured to determine whether the target data needs to enable a transit service, if not, determine the optimal route between the browser and the server at the current moment, and pass the optimal route transmitting said target data to said server;

The route switching unit 300 is configured to monitor the transmission parameters of the optimal route in real time during data transmission, and re-determine the optimal route between the browser and the server when the transmission parameters do not meet the preset conditions. route, and continue to transmit the untransmitted data in the target data through the re-determined optimal route;

The response data forwarding unit 400 is configured to, when the transmission of the target data is completed, the server generates feedback response data, and forwards the response data to the browser.

In one embodiment of the present application, the device further includes:

A local proxy connection establishing unit, configured to establish a local proxy connection with the browser in response to a connection request sent by the browser;

The transmission process establishing unit is used to call the application programming interface provided by the client where the browser is located to establish a data transmission process.

In one embodiment of the present application, the device further includes:

The authentication request unit is configured to send an authentication request to the cloud management platform, and establish a local proxy connection with the browser only after the authentication request is authenticated by the cloud management platform.

In one embodiment of the present application, the device further includes:

A disconnection reconnection unit, configured to re-establish a connection between the browser and the server according to the optimal route when the transmission path of the optimal route is interrupted; if the reconnection times out, re-determine the The optimal route between the browser and the server, and continue to transmit the untransmitted data in the target data through the re-determined optimal route.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: by embedding a plug-in in the browser, the request data sent by the browser to the server can be intercepted, and the high-speed transmission of the request data can be realized through a preset transmission protocol. When transmitting data, the best route can be selected for data transmission to ensure the stability of data transmission. At the same time, the state of the transmission link can be detected in real time during data transmission, and when the state of the link is not good, it can be switched to a link with a better state, thereby reducing the failure rate of data transmission. The authentication verification and transmission encryption mechanism of the cloud management platform allows the browser plug-in and the server to verify the identities of the communication parties. In addition, the data content is encrypted and decrypted through the proprietary transmission protocol during the transmission process to ensure the integrity of the data content. safety. The server can complete the task delivery through the cloud management platform, and then the browser can initiate a request to realize the bilateral data exchange function, and the solution can only be initiated by the browser. It can be seen from the above that the technical solutions provided by the embodiments of the present invention can increase the rate of data transmission and improve the success rate of data transmission.

The implementation of the data transmission device described above is only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, That is, it can be located in one place, or it can also be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative efforts.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various implementations or some parts of the implementations.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (12)

1. A data transmission method, characterized in that the method comprises: Intercepting the request data sent by the browser to the server, and encapsulating the request data into target data in a specific format, the specific format is defined by a preset transmission protocol; Judging whether the target data needs to enable the transit service, if not, determine the best route between the browser and the server at the current moment, and transmit the target data to the server through the best route ; During the data transmission process, the transmission parameters of the optimal route are monitored in real time, and when the transmission parameters do not meet the preset conditions, the optimal route between the browser and the server is re-determined, and the re-determined The optimal route continues to transmit the untransmitted data in the target data; When the transmission of the target data is completed, the server generates feedback response data and sends the response data to the browser. 2. The data transmission method according to claim 1, wherein before intercepting the request data sent by the browser to the server, the method further comprises: Responding to the connection request sent by the browser, establishing a local proxy connection with the browser; Call the application programming interface provided by the client where the browser is located to establish a data transmission process. 3. The data transmission method according to claim 2, wherein the method further comprises: An authentication request is sent to the cloud management platform, and a local proxy connection with the browser is allowed to be established only after the authentication request is authenticated by the cloud management platform. 4. The data transmission method according to claim 1, wherein the specific steps of determining the best route between the browser and the server at the current moment include: In at least one candidate route between the browser and the server, based on the round-trip delay and packet loss rate information of the link, calculate the best route between the browser and the server at the current moment . 5. The data transmission method according to claim 1, wherein the transmission parameters include a round-trip delay or a packet loss rate; correspondingly, the transmission parameters that do not meet the preset conditions include: The round-trip delay is greater than the preset delay threshold or the packet loss rate is greater than the preset packet loss rate threshold. 6. The data transmission method according to claim 1, characterized in that, after transmitting the target data to the server through the optimal route, the method further comprises: When the transmission path of the best route is interrupted, re-establish the connection between the browser and the server according to the best route; if the reconnection times out, re-determine the connection between the browser and the server The optimal route, and continue to transmit the untransmitted data in the target data through the re-determined optimal route. 7. The data transmission method according to claim 1, characterized in that, after the request data is encapsulated into target data having a specific format, the method further comprises: If the target data needs to enable a transfer service, the target data is sent to a local transfer server, and the local transfer server forwards the target data to the server. 8. The data transmission method according to claim 1, wherein the method further comprises: When the browser plug-in is started, it actively sends an authentication request to the cloud management platform. After the authentication request is authenticated by the cloud management platform, it actively obtains a transmission task from the cloud management platform, and then periodically sends a request to the cloud management platform. Obtain the task issued by the cloud management platform; wherein, the transmission task is generated in the following manner: The server sends an authentication request to the cloud management platform, and after the authentication request is passed by the cloud management platform, the server uploads the transmission task with the browser to the cloud management platform. 9. A data transmission device, characterized in that the device comprises: A format conversion unit, configured to intercept request data sent by the browser to the server, and encapsulate the request data into target data in a specific format, the specific format is defined by a preset transmission protocol; An optimal route determining unit, configured to determine whether the target data needs to enable a transit service, and if not, determine the optimal route between the browser and the server at the current moment, and send the optimal route to the server transmits the target data; A route switching unit, configured to monitor the transmission parameters of the optimal route in real time during data transmission, and re-determine the optimal route between the browser and the server when the transmission parameters do not meet the preset conditions , and continue to transmit the untransmitted data in the target data through the re-determined optimal route; A response data forwarding unit, configured to generate feedback response data from the server when the target data transmission is completed, and send the response data to the browser. 10. The data transmission device according to claim 9, wherein the device further comprises: A local proxy connection establishing unit, configured to establish a local proxy connection with the browser in response to a connection request sent by the browser; The transmission process establishing unit is used to call the application programming interface provided by the client where the browser is located to establish a data transmission process. 11. The data transmission device according to claim 10, wherein the device further comprises: The authentication request unit is configured to send an authentication request to the cloud management platform, and only allow to establish a local proxy connection with the browser after the authentication request is authenticated by the cloud management platform. 12. The data transmission device according to claim 9, wherein the device further comprises: A disconnection reconnection unit, configured to re-establish a connection between the browser and the server according to the optimal route when the transmission path of the optimal route is interrupted; if the reconnection times out, re-determine the The optimal route between the browser and the server, and continue to transmit the untransmitted data in the target data through the re-determined optimal route.