CN102457442A - Message sending and reading methods and devices as well as middleware system - Google Patents
Message sending and reading methods and devices as well as middleware system Download PDFInfo
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- CN102457442A CN102457442A CN201010525410XA CN201010525410A CN102457442A CN 102457442 A CN102457442 A CN 102457442A CN 201010525410X A CN201010525410X A CN 201010525410XA CN 201010525410 A CN201010525410 A CN 201010525410A CN 102457442 A CN102457442 A CN 102457442A
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Abstract
The invention provides message sending and reading methods and devices as well as a middleware system, which are suitable for the technical field of computers. The message sending method comprises the following steps of: dividing an input data file according to a pre-set data file length; packaging the divided data files according to a pre-set data packaging manner so as to generate messages including the divided data files; and sending the messages to a message queue. In the message sending method in the invention, the packaging manner of the data file in messages to be sent is dynamically set by dividing and packaging the data file to be sent according to the pre-set packaging manner of data to be sent to generate the messages including the divided data files. Furthermore, the effective communication method is provided for different application programs under a distributed environment so that the application programs have stronger expandability and the better interoperability among the application programs is achieved.
Description
Technical field
The invention belongs to field of computer technology, relate in particular to a kind of message transmission and read method, device and middleware system.
Background technology
In DCE, for integrated distributed application, the developer need provide effective means of communication to the distributed application services under the heterogeneous network environment, makes the application service of different distributions formula to interconnect.Message queue (Message Queue) technology is the effective technology of exchange message between distributed application services.Message queue can reside on internal memory or the disk, and communicating pair is put into message message queue or read message from message queue through the interface of standard.At present; The transmission of message uses the fixed length text to carry out; Can't effectively describe data of different types,, need to revise the application associated program when the field length of the data file that comprises in the message, when field type changes; Make the poor expandability of application program, the interoperability between application program is poor.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of message transmission and read method, device and middleware system; Be intended to solve because the transmission of message uses the fixed length text to carry out; Cause and effectively to describe data of different types,, need to revise the application associated program when the field length of the data file that comprises in the message, when field type changes; Make the poor expandability of application program, the problem of the interoperability difference between application program.
The embodiment of the invention is achieved in that a kind of message method, and said method comprises the steps:
According to the data file length that is provided with in advance the data file of input is cut apart;
Data encapsulation mode according to preset encapsulates the divided data file, generates the message that comprises the divided data file;
Said message is sent to message queue.
Another purpose of the embodiment of the invention is to provide a kind of message dispensing device, and said device comprises:
The file division unit is used for according to the data file length that is provided with in advance the data file of input being cut apart;
Message generation unit is used for according to preset data encapsulation mode the divided data file being encapsulated, and generates the message that comprises the divided data file; And
Message sending unit is used for the message that said message generation unit generates is sent to message queue.
Another purpose of the embodiment of the invention is to provide a kind of message read method, and said method comprises the steps:
From message queue, read the message of appointment;
Data encapsulation mode according to preset is resolved said message;
The data file that obtains is resolved in output from said message.
Another purpose of the embodiment of the invention is to provide a kind of message reading device, and said device comprises:
The message reading unit is used for reading from message queue the message of appointment;
The message parse unit is used for resolving said message according to preset data encapsulation mode; And
The data file output unit is used for exporting from said message and resolves the data file that obtains.
Another purpose of the embodiment of the invention is to provide a kind of message queue communication method, and said method comprises the steps:
The message dispensing device is cut apart the data file of input according to the data file length that is provided with in advance;
The message dispensing device encapsulates the divided data file according to preset data encapsulation mode, generates the message that comprises the divided data file, and said message is sent to message queue;
The message reading device reads the message of appointment from message queue;
The message reading device is resolved said message according to preset data encapsulation mode, and the data file that obtains is resolved in output from said message.
Another purpose of the embodiment of the invention is to provide a kind of middleware system, and said system comprises message dispensing device and message reading device, wherein:
The message dispensing device; Be used for the data file of input being cut apart according to the data file length that is provided with in advance; Data encapsulation mode according to preset encapsulates the divided data file, generates the message that comprises the divided data file, and said message is sent to message queue; And
The message reading device is used for reading from message queue the message of appointment, resolves said message according to preset data encapsulation mode, and the data file that obtains is resolved in output from said message.
The embodiment of the invention is cut apart data file to be sent according to preset data encapsulation mode and is encapsulated, and generates to comprise the message of divided data file, and sends to message queue; Message receiving apparatus reads the message of appointment from message queue; Parse the message that reads according to the data encapsulation mode, thereby realize utilizing the packaged type of content data file in the dynamic specify message of data encapsulation mode, overcome and used the fixed length text in the message communicating process; Can't effectively describe data of different types; When the field length of the data file that comprises in the message, when field type changes, need to revise the application associated program, cause the poor expandability of application program; The problem of the interoperability difference between application program; For different application under the distributed environment provides a kind of effective communication means, make that the extensibility of application program is stronger, the interoperability between application program is better.
Description of drawings
Fig. 1 is the interaction diagrams of the message queue communication method that provides of first embodiment of the invention;
Fig. 2 is the structure chart of the message dispensing device that provides of third embodiment of the invention;
Fig. 3 is the structure chart of the message reading device that provides of third embodiment of the invention;
Fig. 4 is the structure chart of the middleware system that provides of fourth embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The data encapsulation mode of the embodiment of the invention through preset data file to be sent cut apart and encapsulated to sent data file; Generation comprises the message of divided data file; And sending to message queue, message receiving apparatus reads the message of appointment from message queue, parse the message that reads according to the data encapsulation mode; Thereby realize the packaged type of data file in the dynamic-configuration message communicating; For different application under the distributed environment provides a kind of effective communication means, make that the extensibility of application program is stronger, the interoperability between application program is better.
The embodiment of the invention provides a kind of message method, and said method comprises the steps:
According to the data file length that is provided with in advance the data file of input is cut apart;
Data encapsulation mode according to preset encapsulates the divided data file, generates the message that comprises the divided data file;
Said message is sent to message queue.
The embodiment of the invention also provides a kind of message dispensing device, and said device comprises:
The file division unit is used for according to the data file length that is provided with in advance the data file of input being cut apart;
Message generation unit is used for according to preset data encapsulation mode the divided data file being encapsulated, and generates the message that comprises the divided data file; And
Message sending unit is used for the message that said message generation unit generates is sent to message queue.
The embodiment of the invention also provides a kind of message read method, and said method comprises the steps:
From message queue, read the message of appointment;
Data encapsulation mode according to preset is resolved said message;
The data file that obtains is resolved in output from said message.
The embodiment of the invention also provides a kind of message reading device, and said device comprises:
The message reading unit is used for reading from message queue the message of appointment;
The message parse unit is used for resolving said message according to preset data encapsulation mode; And
The data file output unit is used for exporting from said message and resolves the data file that obtains.
The embodiment of the invention also provides a kind of message queue communication method, and said method comprises the steps:
The message dispensing device is cut apart the data file of input according to the data file length that is provided with in advance;
The message dispensing device encapsulates the divided data file according to preset data encapsulation mode, generates the message that comprises the divided data file, and said message is sent to message queue;
The message reading device reads the message of appointment from message queue;
The message reading device is resolved said message according to preset data encapsulation mode, and the data file that obtains is resolved in output from said message.
The embodiment of the invention also provides a kind of middleware system, and said system comprises message dispensing device and message reading device, wherein:
The message dispensing device; Be used for the data file of input being cut apart according to the data file length that is provided with in advance; Data encapsulation mode according to preset encapsulates the divided data file, generates the message that comprises the divided data file, and said message is sent to message queue; And
The message reading device is used for reading from message queue the message of appointment, resolves said message according to preset data encapsulation mode, and the data file that obtains is resolved in output from said message.
The embodiment of the invention is through being provided with the data encapsulation mode of data file to be sent in advance, and the data file of needs being sent according to the data encapsulation mode is cut apart and encapsulate, and generation comprises the message of divided data file; And sending to message queue, message receiving apparatus reads the message of appointment from message queue, parse the message that reads according to the data encapsulation mode; Thereby realize utilizing the packaged type of data file in the dynamic specify message of preset data packaged type; Overcome and used the fixed length text in the message communicating process, can't effectively describe data of different types, when the field length of the data file that comprises in the message, when field type changes; Need to revise the application associated program; The poor expandability that causes application program, the problem of the interoperability difference between application program is for different application under the distributed environment provides a kind of effective communication means; Make that the extensibility of application program is stronger, the interoperability between application program is better.
Below in conjunction with specific embodiment concrete realization of the present invention is described in detail:
Embodiment one:
Fig. 1 shows the interaction flow of the message queue communication method that first embodiment of the invention provides, and details are as follows:
1. the message dispensing device is cut apart the data file of input according to the data file length that is provided with in advance.
In embodiments of the present invention, the length of storable message is predefined in the message queue, comprises a message header in the message and waits two parts of data of sending; In the time need communicating through message queue between application program, between process; Reply is cut apart above the data file of the message-length of regulation, data file to be sent is divided into be fit to the data block that message is sent, and the method for cutting apart has multiple; The data that can send are divided into equal in length; And the data block that is less than the data length that message can send, or cut apart by the data length that message can be sent, thereby data as much as possible in message, deposited; Repeat no more at this, but not in order to restriction the present invention.
As optimum embodiment of the present invention, when considering storage data as much as possible, the integrality of the data of sending in the each message of considered; Be a complete data record, therefore, can be before this step; According to the data record unit of the data file of importing, the length of the data file that encapsulates in the message is set, for example; When the data file of input is a tables of data; Can the data file length setting that encapsulate in the message be not more than message-length, and for the maximum integer of the line item length of table doubly, thereby make things convenient for cutting apart of data file.
2. the message dispensing device encapsulates the divided data file according to preset data encapsulation mode, generates the message of divided data file.
In embodiments of the present invention, preset data encapsulation mode comprises when data file composition field is encapsulated in the message, information such as the precision of this field, data representation form; When the divided data file is encapsulated; According in the data encapsulation mode to the packaged type of each field of data file, corresponding field is handled, for example; For null field in the data file; To the space of its additional similar number, for the field greater than the predetermined data precision, rounding up keeps this precision.Encapsulation to cutting apart good data file can be carried out simultaneously, also can encapsulate in a certain order.In concrete implementation process; Being provided with of data encapsulation mode can be provided with according to message queue; Promptly a message queue is provided with related data encapsulation mode, also related data encapsulation mode can be set according to the data file of input, thereby can be through different data encapsulation modes is set; Realize that same message queue sends the data file of different types of data, improves the availability of application program and the interoperability between application program.
3. the message dispensing device sends to message queue with packaged message.
In embodiments of the present invention, can take asynchronous mode to send when the message dispensing device sends to message queue with packaged message, redispatch after the message reading device such as not needing the last message in the message queue is taken away.
4. the message reading device reads the message of appointment from message queue.
In embodiments of the present invention; Message queue is divided into shared message queue and proprietary message queue, and message does not have strict control of authority in the shared message queue, and relevant application program can be visited; And only having the application program of certain authority, proprietary message queue just can read; In concrete implementation process, the message reading device can read the message of appointment according to frequency preset from message queue, also can read the message of needs according to the needs of application program operation; Particularly, the message identification numbers in can the specify message head is specified the message that reads.
5. the message reading device is resolved the message that reads according to preset data encapsulation mode;
In embodiments of the present invention, preset data encapsulation mode comprises when data file composition field is encapsulated in the message, information such as the precision of this field, data representation form; When message is resolved, according in the data encapsulation mode to the packaged type of each field of data file, corresponding field is handled; For example, for null field in the data file, to the space of its additional similar number; For field, mend 0 in the data front less than the predetermined data precision.In embodiments of the present invention, this data encapsulation mode should be synchronous with the data encapsulation mode of message dispensing device, to keep the correct parsing to the message that reads.
6. the data file that obtains is resolved in output from message.
In embodiments of the present invention; The data file that parses possibly be certain data files part wherein; Should reset with the data file that parses in other message, operation such as merging, thereby obtain the whole data file of sending from the message dispensing device.
The embodiment of the invention encapsulates through the data file of preset data encapsulation mode to input; Mode through asynchronous sends to message queue; Message receiving apparatus is resolved the message that from message queue, reads according to the data encapsulation mode; Thereby can realize that same message queue sends the data file of different types of data, improves the availability of application program and the interoperability between application program through different data encapsulation modes is set.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium; Described storage medium is like ROM/RAM, disk, CD etc.
Embodiment two:
Fig. 2 shows the structure of the message dispensing device that second embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
File size is provided with unit 21, is used for the data record unit according to the data file of preset message-length and input, and the data file length that encapsulates in the message is set.
In embodiments of the present invention, for ease to the cutting apart of data file of input, at first according to the data record unit of the data file of input; The length of the data file that encapsulates in the message is set; For example, when the data file of input is a tables of data, can the data file length setting that encapsulate in the message be not more than message-length; And for the maximum integer of the line item length of table doubly, thereby guarantee that the data file of cutting apart is complete, a significant data file.
In embodiments of the present invention; The length of storable message is predefined in the message queue; Thereby the data file length that can encapsulate in the message of definite message queue; When file size that the data file length of sending can be sent greater than message, must cut apart the data file of sending, be divided into and be fit to the data block that message is sent.
In embodiments of the present invention, preset data encapsulation mode comprises when data file composition field is encapsulated in the message, information such as the precision of this field, data representation form; When the divided data file is encapsulated; According in the data encapsulation mode to the packaged type of each field of data file, corresponding field is handled, for example; For null field in the data file; To the space of its additional similar number, for the field greater than the predetermined data precision, rounding up keeps this precision.Encapsulation to cutting apart good data file can be carried out simultaneously, also can encapsulate in a certain order.In concrete implementation process; Being provided with of data encapsulation mode can be provided with according to message queue; Promptly a message queue is provided with related data encapsulation mode, also related data encapsulation mode can be set according to the data file of input, thereby can be through different data encapsulation modes is set; Realize that same message queue sends the data file of different types of data, improves the availability of application program and the interoperability between application program.
In embodiments of the present invention, can take asynchronous mode to send when the message dispensing device sends to message queue with packaged message, redispatch after the message reading device such as not needing the last message in the message queue is taken away.
In embodiments of the present invention; This message dispensing device can be used for middleware system; Perhaps be used for the inter-operation system between different application; Can be software unit, hardware cell or the software and hardware combining unit that runs on these systems, also can be used as independently, suspension member be integrated in these systems.
Embodiment three:
Fig. 3 shows the structure of the message reading device that third embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
In embodiments of the present invention; Message queue is divided into shared message queue and proprietary message queue, and message does not have strict control of authority in the shared message queue, and relevant application program can be visited; And only having the application program of certain authority, proprietary message queue just can read; In concrete implementation process, the message reading device can read message according to certain frequency in message queue, also can read the message of needs according to the needs of application program operation.
Message parse unit 32 is used for resolving the message that message reading unit 31 reads according to preset data encapsulation mode.
In embodiments of the present invention, preset data encapsulation mode comprises when data file composition field is encapsulated in the message, information such as the precision of this field, data representation form; When message is resolved, according in the data encapsulation mode to the packaged type of each field of data file, corresponding field is handled; For example, for null field in the data file, to the space of its additional similar number; For field, mend 0 in the data front less than the predetermined data precision.In embodiments of the present invention, this data encapsulation mode should be synchronous with the data encapsulation mode of message dispensing device, to keep the correct parsing to the message that reads.
Data file output unit 33 is used for exporting from message and resolves the data file that obtains.
In embodiments of the present invention; The data file that parses possibly be certain data files part wherein; Should reset with the data file that parses in other message, operation such as merging, thereby obtain the whole data file of sending from the message dispensing device.
In embodiments of the present invention; This message reading device can be used for middleware system; Perhaps be used for the inter-operation system between different application; Can be software unit, hardware cell or the software and hardware combining unit that runs on these systems, also can be used as independently, suspension member be integrated in these systems.
Embodiment four:
Fig. 4 shows the structure of the middleware system that third embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
In embodiments of the present invention, application program 41 communicates through middleware system 42 with application program 43, accomplishes sharing and exchange of data, and wherein middleware system 42 comprises message dispensing device 421, message queue 422, message reading device 423, wherein:
In embodiments of the present invention, message dispensing device 421 outwards provides corresponding calling interface, receives the data file of application program input, and this calling interface can be far call interfaces such as EJB interface, Web service interface.
In embodiments of the present invention, the length of storable message is predefined in the message queue, under pre-set length, should make encapsulation more data information in the message as far as possible.
In embodiments of the present invention, message reading device 423 outwards provides corresponding calling interface, receives the reading of data request of application program input, reading of data from message queue, and this calling interface can be far call interfaces such as EJB interface, Web service interface.
In embodiments of the present invention; Being provided with of data encapsulation mode can be provided with according to message queue; Promptly a message queue is provided with related data encapsulation mode, also related data encapsulation mode can be set according to the data file of input, thereby can be through different data encapsulation modes is set; Realize that same message queue sends the data file of different types of data, improves the availability of application program and the interoperability between application program.
In embodiments of the present invention; Middleware system provides corresponding data transmission, fetch interface through message dispensing device, message reading device to application program; The data file of application programs input is cut apart and is encapsulated in the message dispensing device; Generation comprises the message of divided data file, and sends to message queue, in the message reading device, according to the data encapsulation mode message that from message queue, reads is resolved; Send to the application program of request msg, realized the shared resource between different application under the distributed environment.
The embodiment of the invention comprises the message of divided data file through according to preset data encapsulation mode the data file of input being cut apart and encapsulated, generating, and sends to message queue; Message receiving apparatus reads the message of appointment from message queue, parse the message that reads according to the data encapsulation mode, has overcome to use the fixed length text in the message communicating process; Can't effectively describe data of different types; When the data file field length that comprises in the message, when field type changes, need to revise the application associated program, cause the poor expandability of application program; The problem of the interoperability difference between application program; For different application under the distributed environment provides a kind of effective communication means, make that the extensibility of application program is stronger, the interoperability between application program is better.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a message method is characterized in that, said method comprises the steps:
According to the data file length that is provided with in advance the data file of input is cut apart;
Data encapsulation mode according to preset encapsulates the divided data file, generates the message that comprises the divided data file;
Said message is sent to message queue.
2. the method for claim 1 is characterized in that, before the step cut apart of data file of the data file length that said basis is provided with in advance to input, said method further comprises the steps:
Data record unit according to the data file of preset message-length and input is provided with the data file length that encapsulates in the message.
3. a message dispensing device is characterized in that, said device comprises:
The file division unit is used for according to the data file length that is provided with in advance the data file of input being cut apart;
Message generation unit is used for according to preset data encapsulation mode the divided data file being encapsulated, and generates the message that comprises the divided data file; And
Message sending unit is used for the message that said message generation unit generates is sent to message queue.
4. device as claimed in claim 3 is characterized in that, said device also comprises:
File size is provided with the unit, is used for the data record unit according to the data file of preset message-length and input, and the data file length that encapsulates in the message is set.
5. a message read method is characterized in that, said method comprises the steps:
From message queue, read the message of appointment;
Data encapsulation mode according to preset is resolved said message;
The data file that obtains is resolved in output from said message.
6. a message reading device is characterized in that, said device comprises:
The message reading unit is used for reading from message queue the message of appointment;
The message parse unit is used for resolving said message according to preset data encapsulation mode; And
The data file output unit is used for exporting from said message and resolves the data file that obtains.
7. a message queue communication method is characterized in that, said method comprises the steps:
The message dispensing device is cut apart the data file of input according to the data file length that is provided with in advance;
The message dispensing device encapsulates the divided data file according to preset data encapsulation mode, generates the message that comprises the divided data file, and said message is sent to message queue;
The message reading device reads the message of appointment from message queue;
The message reading device is resolved said message according to preset data encapsulation mode, and the data file that obtains is resolved in output from said message.
8. a middleware system is characterized in that, said system comprises message dispensing device and message reading device, wherein:
The message dispensing device; Be used for the data file of input being cut apart according to the data file length that is provided with in advance; Data encapsulation mode according to preset encapsulates the divided data file, generates the message that comprises the divided data file, and said message is sent to message queue; And
The message reading device is used for reading from message queue the message of appointment, resolves said message according to preset data encapsulation mode, and the data file that obtains is resolved in output from said message.
9. system as claimed in claim 8 is characterized in that, said message dispensing device comprises:
The file division unit is used for according to the data file length that is provided with in advance the data file of input being cut apart;
Message generation unit is used for according to preset data encapsulation mode the divided data file being encapsulated, and generates the message that comprises the divided data file; And
Message sending unit is used for the message that said message generation unit generates is sent to message queue.
10. system as claimed in claim 8 is characterized in that, said message reading device comprises:
The message reading unit is used for reading from message queue the message of appointment;
The message parse unit is used for resolving said message according to preset data encapsulation mode; And
The data file output unit is used for exporting from said message and resolves the data file that obtains.
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| CN105573846A (en) * | 2014-12-29 | 2016-05-11 | 成都科来软件有限公司 | Inter-process communication method and inter-process communication device |
| CN103428072B (en) * | 2012-05-23 | 2017-03-08 | 北京大学 | A kind of dissemination method of persistent message and system |
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| CN110764923A (en) * | 2018-07-27 | 2020-02-07 | 北京国双科技有限公司 | Task creating method and device based on message queue |
| CN113204443A (en) * | 2021-06-03 | 2021-08-03 | 京东科技控股股份有限公司 | Data processing method, equipment, medium and product based on federal learning framework |
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