Success rate of an online transaction

1. A computer-implemented method, comprising:

in response to determining that a user logs into a client application associated with a first server on a computing device, obtaining, by the first server, identity information of the computing device and a user ID associated with the computing device;

generating, by the first server, a random number to identify the client application on the computing device;

generating, by the first server, a client ID comprising the identity information of the computing device and the random number;

storing, by the first server and in a relationship list, a relationship between the user ID and the client ID;

receiving, by the first server, data transmitted by a second server, wherein the data includes the user ID, wherein the data is transmitted by the second server to the first server after the second server receives a service request from the computing device using a browser installed on the computing device;

querying, by the first server, the relationship list to determine the client application based on the user ID; and

transmitting, by the first server and using the client application associated with the first server, a message to the computing device, wherein the message is associated with a notification that notifies a user of the computing device to use the client application instead of the browser to complete the service request with the first server.

2. The computer-implemented method of claim 1 , wherein the browser and the client application associated with the first server are both installed on the computing device.

3. The computer-implemented method of claim 2 , further comprising establishing, by the first server, a connection with the client application associated with the first server before receiving the data.

4. The computer-implemented method of claim 1 , wherein the first server is a service implementation server, the second server is a merchant server, and the client application associated with the first server is a service implementation client associated with the service implementation server.

5. The computer-implemented method of claim 1 , wherein the first server is a payment server, the second server is a merchant server, the client application associated with the first server is a payment client associated with the payment server, and the service request is a payment request.

6. The computer-implemented method of claim 1 , wherein determining the client application comprises:

identifying the client ID based on the user ID;

identifying the computing device based on the identity information of the computing device comprised in the client ID; and

identifying the client application on the computing device based on the random number comprised in the client ID.

7. The computer-implemented method of claim 1 , wherein transmitting the message to the computing device comprises:

transmitting, by the first server and to the client application associated with the first server, the message; and

transmitting, by the client application associated with the first server and to the computing device, the message.

8. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

in response to determining that a user logs into a client application associated with a first server on a computing device, obtaining, by the first server, identity information of the computing device and a user ID associated with the computing device;

generating, by the first server, a random number to identify the client application on the computing device;

generating, by the first server, a client ID comprising the identity information of the computing device and the random number;

storing, by the first server and in a relationship list, a relationship between the user ID and the client ID;

receiving, by the first server, data transmitted by a second server, wherein the data includes the user ID, wherein the data is transmitted by the second server to the first server after the second server receives a service request from the computing device using a browser installed on the computing device;

querying, by the first server, the relationship list to determine the client application based on the user ID; and

transmitting, by the first server and using the client application associated with the first server, a message to the computing device, wherein the message is associated with a notification that notifies a user of the computing device to use the client application instead of the browser to complete the service request with the first server.

9. The non-transitory, computer-readable medium of claim 8 , wherein the browser and the client application associated with the first server are both installed on the computing device.

10. The non-transitory, computer-readable medium of claim 9 , the operations further comprising establishing, by the first server, a connection with the client application associated with the first server before receiving the data.

11. The non-transitory, computer-readable medium of claim 8 , wherein the first server is a service implementation server, the second server is a merchant server, and the client application associated with the first server is a service implementation client associated with the service implementation server.

12. The non-transitory, computer-readable medium of claim 8 , wherein the first server is a payment server, the second server is a merchant server, the client application associated with the first server is a payment client associated with the payment server, and the service request is a payment request.

13. The non-transitory, computer-readable medium of claim 8 , wherein determining the client application comprises:

identifying the client ID based on the user ID;

identifying the computing device based on the identity information of the computing device comprised in the client ID; and

identifying the client application on the computing device based on the random number comprised in the client ID.

14. The non-transitory, computer-readable medium of claim 8 , wherein transmitting the message to the computing device comprises:

transmitting, by the first server and to the client application associated with the first server, the message; and

transmitting, by the client application associated with the first server and to the computing device, the message.

15. A computer-implemented system, comprising:

one or more computers; and

one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:

in response to determining that a user logs into a client application associated with a first server on a computing device, obtaining, by the first server, identity information of the computing device and a user ID associated with the computing device;

generating, by the first server, a random number to identify the client application on the computing device;

generating, by the first server, a client ID comprising the identity information of the computing device and the random number;

storing, by the first server and in a relationship list, a relationship between the user ID and the client ID;

receiving, by the first server, data transmitted by a second server, wherein the data includes the user ID, wherein the data is transmitted by the second server to the first server after the second server receives a service request from the computing device using a browser installed on the computing device;

querying, by the first server, the relationship list to determine the client application based on the user ID; and

transmitting, by the first server and using the client application associated with the first server, a message to the computing device, wherein the message is associated with a notification that notifies a user of the computing device to use the client application instead of the browser to complete the service request with the first server.

16. The computer-implemented system of claim 15 , wherein the browser and the client application associated with the first server are both installed on the computing device.

17. The computer-implemented system of claim 16 , the operations further comprising establishing, by the first server, a connection with the client application associated with the first server before receiving the data.

18. The computer-implemented system of claim 15 , wherein the first server is a service implementation server, the second server is a merchant server, and the client application associated with the first server is a service implementation client associated with the service implementation server.

19. The computer-implemented system of claim 15 , wherein the first server is a payment server, the second server is a merchant server, the client application associated with the first server is a payment client associated with the payment server, and the service request is a payment request.

20. The computer-implemented system of claim 15 , wherein determining the client application comprises:

identifying the client ID based on the user ID;

identifying the computing device based on the identity information of the computing device comprised in the client ID; and

identifying the client application on the computing device based on the random number comprised in the client ID.

21. The computer-implemented system of claim 15 , wherein transmitting the message to the computing device comprises:

transmitting, by the first server and to the client application associated with the first server, the message; and

transmitting, by the client application associated with the first server and to the computing device, the message.