CN110969414A - Cross-platform workflow implementation method and system based on Java - Google Patents
Cross-platform workflow implementation method and system based on Java Download PDFInfo
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Abstract
The invention relates to the technical field of workflow, in particular to a method and a system for realizing cross-platform workflow based on Java, which are different in that the method comprises the following steps: s1, function registration: obtaining classes, interfaces, methods and parameters from the Jar package, and selectively registering the functional methods into a functional database, so as to realize display, search and functional modeling of functions; s2, building a functional flow; s3, function flow management and service release: the function flow templates are managed in a unified mode, functions of importing, exporting, editing and deleting the function flow templates are provided, and management and release of the flows are achieved; s4, testing the operation of the functional flow service; s5, function flow service calling: invoked through a function library web interface. The invention can flexibly define the business process and support the cross-platform construction of the workflow.
Description
Technical Field
The invention relates to the technical field of workflow, in particular to a method and a system for realizing cross-platform workflow based on Java.
Background
Workflow technology originates in the office and production field and refers to the idea that a transaction is proposed to run according to a specific flow. For example, in the field of production organization, production activities have various forms, and the production activities are divided into a plurality of contents to complete tasks, such as rule making, personnel roles, flow arrangement, task execution time and the like. The workflow provides a means for realizing the separation of application logic and process logic, so that the performance of the system can be improved by modifying the process model under the condition of not modifying the implementation mode of a specific functional module, the integrated management of part or all of the production and operation process is realized, the reuse rate of software is improved, and the maximum efficiency of the system is exerted.
In 1993, the international Workflow Management alliance (WfMC) was established in europe, which marks the beginning of Workflow technology into a relatively mature phase. In order to realize the interoperation between different workflow products, the WfMC establishes a series of standards in terms of related terms, architecture, application programming interfaces and the like of a workflow management system. The workflow definition given by the workflow alliance is: workflow refers to full or semi-automation of the whole or part of the business process with computer support. In practice, all processes whose execution is controlled by a computer software system (workflow management system) can be more broadly called workflows.
At present, a workflow is usually built in a system, so that a user cannot flexibly configure the workflow according to the self requirement, the flow can be modified only by modifying a code, and the workflow can only run under one system after being configured.
In view of the above, to overcome the technical defects, it is an urgent problem in the art to provide a method and a system for implementing a Java-based cross-platform workflow.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method and a system for realizing cross-platform workflow based on Java, which can flexibly define business processes and support cross-platform construction of the workflow.
In order to solve the technical problems, the technical scheme of the invention is as follows: a cross-platform workflow implementation method based on Java is characterized by comprising the following steps:
s1, function registration: obtaining classes, interfaces, methods and parameters from the Jar package, and selectively registering the functional methods into a functional database, so as to realize display, search and functional modeling of functions;
s2, building a functional flow;
s3, function flow management and service release: the function flow templates are managed in a unified mode, functions of importing, exporting, editing and deleting the function flow templates are provided, and management and release of the flows are achieved;
s4, testing the operation of the functional flow service;
s5, function flow service calling: invoked through a function library web interface.
According to the above technical solution, the specific step of the step S1 function registration includes:
s11, starting a function driving test service;
s12, starting a workflow modeling tool;
s13, connecting function driving service: setting function driving service information, inputting a server IP and a function driving test service port, and connecting function driving test service;
and S14, registering function.
According to the above technical solution, the step S14 registration function includes Jar package registration, class registration, method registration and parameter registration.
According to the above technical solution, the specific registration step of step S14 includes:
s141, acquiring a file resource directory;
s142, traversing the Jar package from the file resource directory;
s143, obtaining classes and interfaces from the Jar package;
s144, acquiring methods and parameters from the classes and the interfaces;
s145, respectively registering the Jar packages, the classes, the methods and the parameters into a function database.
According to the technical scheme, the specific steps of the step S2 function flow construction include:
s21, creating a new flow template: newly building an empty flow template, automatically generating a flow code, inputting parameters, selecting the category to which the flow code belongs, and finally building the flow template;
s22, editing flow parameters: defining process parameters including parameter names, parameter types, parameter directions and default values;
s23, adding functional method nodes;
s24, editing functional method parameters: editing parameters, including function number, function name and return value type;
s25, connecting flow nodes;
and S26, debugging, testing and running.
A cross-platform workflow implementation system based on Java is characterized in that: which comprises
The function driving module: the system comprises a function registration module and a function driving engine module;
the function remote calling service module: the method is used for encapsulating a function registration engine and a function driving engine, and comprises a function registration service and a function calling service;
a workflow modeling module: the method is used for customizing the business process by a user;
a workflow driving module: the workflow engine realizes the explanation and execution of the process by utilizing a function driving engine in a function library; the workflow management is to perform unified management on the workflow templates;
the workflow web remote calling service module: and traversing and calling functions of the flow published in the template library are realized.
According to the technical scheme, the function registration module enumerates classes, interfaces, methods and parameters from the Jar package by using a Java reflection mechanism, selectively registers the function methods in the function database, and is convenient for realizing function display, search and function modeling.
According to the technical scheme, the corresponding relation of each element in the function registration process is as follows: the Jar package and the class, the class and the method, the method and the parameter are all in one-to-many relation.
According to the technical scheme, the function driving engine module calls functions according to a uniform interface specification by using a dynamic calling mechanism of Java, and the specific calling steps of the function driving engine module are as follows: the module allocates a session for each process application and manages an object pool according to the session, wherein the object pool comprises all created and referenced objects used in the session; the function driving engine realizes the indexing of the objects and transfers the objects among various function methods; and releasing the objects in the object pool through a garbage recovery mechanism after the flow calling is finished.
According to the technical scheme, the workflow modeling module comprises two modes of static workflow and dynamic workflow; the static workflow supports a common workflow mode and supports routing based on a condition rule; the dynamic workflow supports multiple complex workflow modes and supports multiple process instance control management.
Compared with the prior art, the invention has the following beneficial effects:
1) through flexible definition of the workflow, the traditional service development mode is changed, so that the system can adapt to the change of the service;
2) through the realization of common workflow modes such as serial, concurrent, branching and converging modes and complex workflow modes such as node rollback, revocation and sub-flow modes, the control on the workflow is increased, the decision quality and accuracy are improved, and the authority is flexibly distributed;
3) the method breaks through the barrier that the workflow building can only be carried out under the same operating system in the traditional technology, and supports the cross-platform building of the workflow.
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FIG. 1 is a block schematic diagram of an embodiment of the invention;
FIG. 2 is a diagram illustrating correspondence between various elements of workflow registration according to an embodiment of the present invention;
fig. 3 is a schematic diagram of workflow registration steps according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Many aspects of the invention are better understood with reference to the following drawings. The components in the drawings are not necessarily to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, in the several views of the drawings, like reference numerals designate corresponding parts.
The word "exemplary" or "illustrative" as used herein means serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" or "illustrative" is not necessarily to be construed as preferred or advantageous over other embodiments. All of the embodiments described below are exemplary embodiments provided to enable persons skilled in the art to make and use the examples of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. In other instances, well-known features and methods are described in detail so as not to obscure the invention. For purposes of the description herein, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," and derivatives thereof shall relate to the invention as oriented in fig. 1. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.
The embodiment of the invention provides a method and a system for realizing cross-platform workflow based on Java, wherein a user can flexibly define the business process of an enterprise through a workflow visual modeling tool; the workflow engine provides strong flow control capability, and can drive the operation of the business flow instance strictly according to the definition of the business flow, including static workflow and dynamic workflow: the static workflow supports common workflow modes such as serial, concurrent, branch selection, convergence and the like, and supports routing based on condition rules; the dynamic workflow supports various complex workflow modes such as any node backspacing, revocation, sub-flow, window evidence supplement and the like, and also provides various flow instance control management functions such as batch handling, assistant handling, supervision, precipitation, overdue prompt and the like. In order to adapt to the change of the business process, the workflow engine also provides strong process template management and state management functions.
As shown in fig. 1 to fig. 3, through the workflow visualization modeling tool, a user can flexibly define a business process of an enterprise, and can run in operating systems such as Windows and Linux, which supports communication between the two operating systems. The embodiment of the invention comprises a function driving module, a function remote calling service module, a workflow modeling module, a workflow driving module and a workflow web remote calling service module:
1) function driving module
The function driving module comprises a function registration part and a function driving engine part:
1-1) function registration
Function registration enumerates classes, interfaces, methods and parameters from a Jar package by using a Java reflection mechanism, selectively registers the function methods into a function database, and is convenient for realizing function display, search and function modeling; fig. 2 is a corresponding relationship of each element in the function registration process: jar packages and classes, classes and methods, methods and parameters are all in one-to-many relationship; fig. 3 is a specific registration method: firstly, acquiring a file resource directory, traversing a Jar package from the file resource directory, acquiring a class and an interface from the Jar package, acquiring a method and a parameter from the class and the interface, and then respectively registering the Jar package, the class, the method and the parameter into a function database;
1-2) function-driven Engine
The function driving engine module realizes calling of functions according to a uniform interface specification by using a dynamic calling mechanism of Java; the module allocates a session for each process application and manages an object pool according to the session, wherein the object pool comprises all created and referenced objects used in the session; the function driving engine realizes the indexing of the objects and transfers the objects among various function methods; releasing the objects in the object pool through a garbage recovery mechanism after the process calling is finished;
2) function remote calling service module
The function remote calling service module is used for packaging a function registration engine and a function driving engine and comprises a function registration service part and a function calling service part; requesting a service from a remote computer program through a remote procedure call protocol to realize cross-network call among a plurality of machines;
3) workflow modeling module
Through the visual modeling tool of workflow, the user can define the business process of the enterprise flexibly, including static workflow and dynamic workflow: the static workflow supports common workflow modes such as serial, concurrent, branch selection, convergence and the like, and supports routing based on condition rules; the dynamic workflow supports various complex workflow modes such as any node backspacing, revocation, sub-flow, window evidence supplement and the like, and also provides various flow example control management functions such as batch handling, assistant handling, supervision, precipitation, overdue prompt and the like;
4) workflow driving module
The workflow driving module comprises a workflow engine and a workflow management part:
4-1) workflow Engine
The workflow engine realizes the explanation and execution of the process by utilizing a function driving engine in a function library; the workflow engine is the core of the workflow management system and provides an operating environment for workflow instances, including the explanation of flow charts, the allocation of resources, the control of logic and the like; the main task of the workflow engine during operation is to explain a flow chart, which is responsible for controlling the state conversion of processes, nodes and work items, processing the logical relationship among the processes, the nodes and the work items and for the transmission of data among the steps;
4-2) workflow management
The workflow template is managed in a unified mode, functions of importing, exporting, editing and deleting the functional flow template are provided, and the workflow is issued to be a service;
5) workflow web remote calling service module
The workflow web remote call service module can realize the functions of traversing and calling the processes published in the template library.
The embodiment of the invention comprises the following steps:
1) function registration: obtaining classes, interfaces, methods and parameters from the Jar package, and selectively registering the functional methods into a functional database, so as to realize the display, search and functional modeling of functions;
1-1) starting a function driving test service;
1-2) starting a workflow modeling tool;
1-3) connection function driven services: setting function driving service information, inputting a server IP and a function driving test service port, and connecting function driving test service;
1-4) registration function: the method comprises Jar package registration, class registration, method registration and parameter registration;
2) building a functional flow;
2-1) newly building a flow template: creating an empty flow template, automatically generating a flow code, inputting parameters such as a flow name, a flow description, a creator, creation time and the like, selecting a category to which the flow code belongs, and finally creating the flow template;
2-2) editing process parameters: defining flow parameters such as parameter names, parameter types, parameter directions, default values and the like;
2-3) adding functional method nodes;
2-4) editing functional method parameters: editing parameters such as function numbers, function names, return value types and the like;
2-5) connecting process nodes;
2-6) debugging, testing and running processes;
3) function process management and service release: and the function flow templates are managed in a unified way, and the functions of importing, exporting, editing and deleting the function flow templates are provided. The management and the release of the process are realized;
4) running and testing the functional flow service;
5) and (3) calling a function flow service: invoked through a function library web interface.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A cross-platform workflow implementation method based on Java is characterized by comprising the following steps:
s1, function registration: obtaining classes, interfaces, methods and parameters from the Jar package, and selectively registering the functional methods into a functional database, so as to realize display, search and functional modeling of functions;
s2, building a functional flow;
s3, function flow management and service release: the function flow templates are managed in a unified mode, functions of importing, exporting, editing and deleting the function flow templates are provided, and management and release of the flows are achieved;
s4, testing the operation of the functional flow service;
s5, function flow service calling: invoked through a function library web interface.
2. The Java-based cross-platform workflow implementation method of claim 1, characterized in that: the specific step of the function registration of step S1 includes:
s11, starting a function driving test service;
s12, starting a workflow modeling tool;
s13, connecting function driving service: setting function driving service information, inputting a server IP and a function driving test service port, and connecting function driving test service;
and S14, registering function.
3. The Java-based cross-platform workflow implementation method of claim 2, characterized in that: the step S14 registration functions include Jar package registration, class registration, method registration, and parameter registration.
4. The Java-based cross-platform workflow implementation method of claim 3, wherein: the specific registration step of step S14 includes:
s141, acquiring a file resource directory;
s142, traversing the Jar package from the file resource directory;
s143, obtaining classes and interfaces from the Jar package;
s144, acquiring methods and parameters from the classes and the interfaces;
s145, respectively registering the Jar packages, the classes, the methods and the parameters into a function database.
5. The Java-based cross-platform workflow implementation method of claim 1, characterized in that: the specific steps of the step S2 function flow construction include:
s21, creating a new flow template: newly building an empty flow template, automatically generating a flow code, inputting parameters, selecting the category to which the flow code belongs, and finally building the flow template;
s22, editing flow parameters: defining process parameters including parameter names, parameter types, parameter directions and default values;
s23, adding functional method nodes;
s24, editing functional method parameters: editing parameters, including function number, function name and return value type;
s25, connecting flow nodes;
and S26, debugging, testing and running.
6. A cross-platform workflow implementation system based on Java is characterized in that: which comprises
The function driving module: the system comprises a function registration module and a function driving engine module;
the function remote calling service module: the method is used for encapsulating a function registration engine and a function driving engine, and comprises a function registration service and a function calling service;
a workflow modeling module: the method is used for customizing the business process by a user;
a workflow driving module: the workflow engine realizes the explanation and execution of the process by utilizing a function driving engine in a function library; the workflow management is to perform unified management on the workflow templates;
the workflow web remote calling service module: and traversing and calling functions of the flow published in the template library are realized.
7. The Java-based cross-platform workflow implementation system of claim 6, wherein: the function registration module enumerates classes, interfaces, methods and parameters from the Jar package by using a Java reflection mechanism, selectively registers the function methods into the function database, and is convenient for realizing function display, search and function modeling.
8. The Java-based cross-platform workflow implementation system of claim 7, wherein: the corresponding relation of each element in the function registration process is as follows: the Jar package and the class, the class and the method, the method and the parameter are all in one-to-many relation.
9. The Java-based cross-platform workflow implementation system of claim 6, wherein: the function driving engine module calls functions according to a uniform interface specification by using a dynamic calling mechanism of Java, and the specific calling steps of the function driving engine module are as follows: the module allocates a session for each process application and manages an object pool according to the session, wherein the object pool comprises all created and referenced objects used in the session; the function driving engine realizes the indexing of the objects and transfers the objects among various function methods; and releasing the objects in the object pool through a garbage recovery mechanism after the flow calling is finished.
10. The Java-based cross-platform workflow implementation system of claim 6, wherein: the workflow modeling module comprises two modes of static workflow and dynamic workflow; the static workflow supports a common workflow mode and supports routing based on a condition rule; the dynamic workflow supports multiple complex workflow modes and supports multiple process instance control management.
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