CN101383814A - Device and method implementing data access based on connection pool - Google Patents
Device and method implementing data access based on connection pool Download PDFInfo
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Abstract
The embodiment of the invention provides equipment for realizing data access based on a connection pool and a method thereof; an application system module sends a connection request to a connection pool module which acquires a connection broker excluding physical connection from an establishing module of the connection broker according to the connection request and returns the connection broker to the application system module; the application system module uses the acquired connection broker to initiate data access, and when initiating the data access, the connection broker acquires a connection object with physical connection from the connection pool module and realizes the data access by a connection object with physical connection. By applying the embodiment of the invention, as the connection object with physical connection is distributed to the application system module when the data access is initiated, the life cycle of the connection object can be shortened, the utilization rate of the connection object can be improved and the connection resource can be saved.
Description
Technical field
The present invention relates to the connection pool technology, particularly relate to a kind of equipment and method that realizes based on the data access of connection pool.
Background technology
At present, realize that certain professional application system usually can carry out data access.Such as: pass through Java messenger service (JMS in the application system that realizes enterprise information management, Java Message Servers) message or Java connect framework (JCA, Java Connect Architecture) message visit another one system, charge system is by database operating instruction accessing database or the like.The application system of realization enterprise information management described here and charge system or the like can be referred to as application system, and application system then is called data access to the visit that another systems such as database realize.
When carrying out data access, application system connects with accessed system earlier, realizes data access by the connection of setting up again, just closes connection after data access finishes by the time.Owing to set up with to close the expense that is connected bigger, be connected if set up continually with closing, then can greatly influence the performance of system.So, be connected spent expense in order to reduce to set up with closing, prior art generally adopts the mode of connection pool to carry out data access, and its basic thought is: set up the connection pool of a static state earlier, and the some connecting objects that will set up are kept in the connection pool.When application system need be carried out data access, can connect to the connection pool request, connection pool is distributed to application system with idle connecting object, and application system realizes data access by the connecting object that obtains again.Afterwards, when the visit of application system end data, just used connecting object can be discharged in the connection pool again.Like this, because connection pool has been set up some connecting objects in advance, same connecting object can be employed system by the mode of distributing and discharge and reuse, thereby significantly reduces the expense of setting up and closing.
Connecting object described here is to have set up physical connection with accessed system.Such as: database connection object be and certain certain database between the physical connection set up, and can safeguard and the communicating by letter of this database, in connecting context, carry out SQL statement and return results.So from application system one side, connecting object is not a kind of simple data, can realize certain function by the method in the object.
In above-mentioned this data access method based on connection pool, the life cycle of a connecting object is from distributing to application system till be discharged into connection pool again.But in the practical application, after application system obtains a connecting object, may also need to carry out otherwise processing and do not utilize this connecting object to carry out data access immediately.In this case, this connecting object is not utilized in its life cycle fully, has caused the waste of resource.
Summary of the invention
The embodiment of the invention provides a kind of equipment of realizing based on the data access of connection pool, and connecting object is fully utilized in its life cycle, thereby saves connection resource.
In order to achieve the above object, the technical scheme of embodiment of the invention proposition is:
A kind of equipment of realizing based on the data access of connection pool, this equipment comprises:
The application system module, be used for sending connection request to the connection pool module, utilize the connection agency who does not comprise physical connection who obtains to initiate data access, described connection agency sends connection request to the connection pool module when initiating data access, obtain connecting object, realize data access by connecting object with physical connection with physical connection;
The connection pool module is used for when receiving the connection request of application system module, acts on behalf of creation module to connection and sends connection request, and will connect and act on behalf of connection that creation module returns and act on behalf of and be transmitted to the application system module; When receiving the connection request that connects the agency, the connecting object with physical connection that self has been set up offers and connects the agency;
Connect and act on behalf of creation module, be used to receive the connection request of connection pool module, create the connection agency who does not comprise physical connection, and the connection that will create agency returns to the connection pool module.
The embodiment of the invention also provides a kind of method that realizes based on the data access of connection pool, and connecting object is fully utilized in its life cycle, thereby saves connection resource.
In order to achieve the above object, the technical scheme of embodiment of the invention proposition is:
A kind of method that realizes based on the data access of connection pool, this method comprises:
The application system module sends connection request to the connection pool module, and the connection pool module is acted on behalf of the connection agency who does not comprise physical connection who obtains establishment the creation module according to connection request from connection, and will connect to act on behalf of and return to the application system module; The connection agency that the utilization of application system module obtains initiates data access, and described connection agency obtains the connecting object with physical connection from the connection pool module when initiating data access, and realizes data access by the connecting object with physical connection.
In sum, the embodiment of the invention provides a kind of equipment and method that realizes based on the data access of connection pool, distribute to the application system module owing to when initiating data access, just will have the connecting object of physical connection, can improve the utilance of connecting object, thereby save connection resource.
Description of drawings
Fig. 1 is the basic block diagram that realizes based on the apparatus embodiments one of connection pool data access;
Fig. 2 is the internal structure schematic diagram of connection management module in the equipment;
Fig. 3 is the flow chart of realization based on the method embodiment one of the data access of connection pool;
Fig. 4 realizes the flow chart based on the method embodiment two of the data access of connection pool.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, the embodiment of the invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the basic block diagram that realizes based on the apparatus embodiments one of connection pool data access.As shown in Figure 1, this equipment can comprise:
Connect and act on behalf of creation module 103, be used to receive the connection request of connection pool module 102, create the connection agency who does not comprise physical connection, and the connection that will create agency returns to connection pool module 102.
In the present embodiment, connection is acted on behalf of creation module 103 and is specifically designed to establishment connection agency, and the interface of connecting object is identical in the connection agency of establishment and the connection pool module 102, can be employed system module 101 identifications and use.But different with connecting object in the connection pool module 102 is to connect to act on behalf of not have with accessed system and set up real physical connection.That is to say that application system module 101 can be utilized and connect agency's initiation data access, but can not really realize data access.
For this reason, also need from connection pool module 102, to obtain connecting object among the connection of the establishment agency, and realize the function of data access according to the connecting object that obtains with physical connection.The connection agency who it should be noted that establishment is not a kind of simple data, and as the connecting object that has physical connection in the connection pool module 102, connecting the agency can provide method to realize certain function to application system module 101.Therefore, connect the agency except comprising the interface identical, can comprise the function of obtaining connecting object from connection pool module 102, thereby utilize the connecting object that obtains to realize data access with physical connection with connecting object.As for how to create the method that connects the agency is a lot, and those skilled in the art can adopt diverse ways to create the connection agency.
Such as: the data access of need realizing is database access, and connecting object is that database connects, just can utilize the Java database to connect standard (JDBC) and create to connect and act on behalf of, its form then can for:
public?class?ProxyConnection?implements?Connection
{
Private Connection realConnection=null; // realConnection is initialized as sky
Private ConnectionPool connPool=null; // connPool is initialized as sky
public?ProxyConnection(ConnectionPool?connectionPool)
{
ConnPool=connectionPool; // connection pool is quoted to connPool
}
public?Statement?createStatement()throws?SQLException
{
if(null＝＝realConnection)
{
RealConnection=getRealConnection (); If // realConnection is empty, then utilize
The getRealConnection () method of // standard from
The company that acquisition has physical connection in the // connection pool
// connect object to give realConnection
}
Return realConnection.createStatement (); //realConnection utilizes standard
//createStatement () method fulfillment database
// visit
}
private?Connection?getRealConnection()
{
Return connPool.checkOut (); // utilize the checkOut () of standard to obtain connection
}
}
Wherein, " realConnection " expression connects really, and is initialized as sky; " connPool " represents connection pool, also is initialized as sky; Can the realizing by " connPool " alternately of every and real connection pool quoted connection pool to " connPool " in " connPool=connectionPool " expression; Session is created in " createStatement () " expression, the fulfillment database visit; The method of physical connection is obtained in " getRealConnection () " expression from real connection pool.
Here, the interface of supposing to have in the connection pool connecting object of physical connection is Connection, and connecting the corresponding interface of agency also is Connection.If connecting object can utilize the visit of createStatement () method fulfillment database, so, connect the visit that the agency also can utilize createStatement () method fulfillment database.But different with connecting object is, connects not physical connection of agency, and the function of the createStatement () method in its createStatement () method and the connecting object is different.Connect in agency's the createStatement () method, also need to utilize getRealConnection () method from connection pool, to obtain to have the connecting object of physical connection to realConnection, the visit of calling realConnection.createStatement () method fulfillment database again.Here, the createStatement () method in getRealConnection () and the connecting object all is standard method in the JDBC standard, and specific implementation belongs to prior art, repeats no more herein.
The example that above-mentioned establishment at database access connects the agency is that example illustrates with the JDBC standard only, and in the practical application, also can not utilize the JDBC standard to create and connect the agency, and utilize other standard, such as Open Database Connection standard (ODBC).As long as the connection agency who creates out is identical with the interface of connecting object in the connection pool, do not comprise physical connection and can from connection pool, obtain connecting object getting final product.
Use the present embodiment scheme, when needs carried out data access, application system module 101 sent connection request to connection pool module 102; Connection pool module 102 is acted on behalf of creation module 103 to connection and is sent connection request; Connect and act on behalf of the connection agency that creation module 103 establishments do not comprise physical connection, and the connection that will create agency returns to connection pool module 102; Connection pool module 102 will connect the agency and be transmitted to application system module 101; Application system module 101 utilizes the connection agency who does not comprise physical connection who obtains to initiate data access, described connection agency sends connection request to connection pool module 102 when initiating data access, obtain connecting object, and realize data access by connecting object with physical connection with physical connection.
In the practical application, the connection pool module 102 in the present embodiment can comprise:
Connecting object pond module 1022 is used for providing the connecting object of having set up with physical connection when receiving connection request.
In the practical application, connection management module 1021 can also be provided with connection strategy in advance, according to connection strategy not in the same way application system module 101 return different connections.Connection strategy described here is exactly the information that is used to represent connection type, and this connection type can be acted on behalf of for the connection that does not comprise physical connection, also can be for having the connecting object of physical connection.In this case, Fig. 2 has shown the internal structure schematic diagram of connection management module 1021.As shown in Figure 2, connection management module 1021 can comprise:
Differentiate submodule 1021a, be used to receive connection request from application system module 101, judge whether to provide the connection agency according to the connection strategy of preserving among the memory module 1021d to application system module 101, if then the connection request with application system module 101 sends to connection agency control submodule 1021b; Otherwise, connection request is sent to connecting object control submodule 1021c.
Connect agency's control submodule 1021b, be used to receive connection request by the application system module 101 of differentiating submodule 1021a forwarding, act on behalf of creation module 103 to connection and send connection requests, and will connect and act on behalf of connection that creation module 103 returns and act on behalf of and be transmitted to application system module 101.
Connecting object control submodule 1021c, be used to receive connection request by the application system module 101 of differentiating submodule 1021a forwarding, send connection request to connecting object pond module 102, and the connecting object with physical connection that connecting object pond module 102 is returned returns to application system module 101.
Memory module 1021d, the connection strategy that is used to preserve the expression connection type, described connection type is connection agency who does not comprise physical connection or the connecting object with physical connection.
That is to say, when connection management module 1021 receives connection request from application system module 101, can judge the connection type that returns according to the connection strategy of preserving among the memory module 1021d by differentiating submodule 1021a earlier, if being the connection that does not comprise physical connection, connection strategy acts on behalf of this type, then will send to and connect agency's control submodule 1021b from the connection request that application system module 101 is sent, act on behalf of to obtain the creation module 103 from connection and connect the agency by connecting agency's control submodule 1021b, and be transmitted to application system module 101.After this, application system module 101 adopts the mode that connects the agency to realize data access, that is: application system module 101 is utilized and is connected agency's initiation data access, and in the data access process, from connection pool module 102, obtain connecting object by connecting the agency, utilize connecting object to realize data access again.
Correspondingly, if connection strategy is this type of connecting object with physical connection, then will send to connecting object control submodule 1021c from the connection request that application system module 101 is sent, 1021c obtains the connecting object with physical connection from connecting object pond module 1022 by connecting object control submodule, and is transmitted to application system module 101.After this, application system module 101 adopts the mode of connecting object to realize data access, that is: application system module 101 utilizes the connecting object that obtains directly to realize data access.
That is to say that by the setting of connection strategy, application system both can adopt the mode that connects the agency to realize data access, also can directly adopt existing connecting object to realize data access, increased the flexibility of connected mode.
At the equipment of above-mentioned realization based on the data access of connection pool, the present invention also proposes to realize the method embodiment based on the data access of connection pool.
Present embodiment corresponding equipment cut-away view can repeat no more as shown in Figure 1 herein.Fig. 3 is the flow chart of realization based on the method embodiment one of the data access of connection pool.As shown in Figure 3, this method can comprise:
Step 301: application system module 101 sends connection request to connection pool module 102.
Step 302: connection pool module 102 is acted on behalf of the connection agency who does not comprise physical connection who obtains establishment the creation module 103 according to connection request from connection, and the connection that will obtain agency returns to application system module 101.
Step 303: application system module 101 utilizes the connection agency who obtains to initiate data access, described connection agency obtains the connecting object with physical connection from connection pool module 102 when initiating data access, and realizes data access by the connecting object with physical connection.
In the present embodiment, connection pool module 102 is when receiving the connection request of application system module 101, and the connecting object that will not have physical connection is immediately distributed to application system module 101, connects the agency and only distribute.Like this, from application system module 101 1 sides,, can discern with using and be connected the agency as receiving connecting object with physical connection because all external interfaces are acted on behalf of in the connection that receives and connecting object is identical; From connection pool module 102 1 sides, do not distribute to application system module 101 owing to will have the connecting object of physical connection, the connecting object with physical connection also is not employed system module 101 to be occupied, and its life cycle does not just also begin yet.
After this, when application system module in the step 303 101 is initiated data access, just from connection pool module 102, obtain connecting object, and realize data access by connecting object with physical connection with physical connection by connecting the agency.That is to say that the connecting object that will have a physical connection when connection pool module 102 is distributed to and connected when acting on behalf of, this connecting object is just occupied, and its life cycle just really begins.Like this, owing to postponed the occupied start time of connecting object, thus can improve the utilance of connecting object effectively, save connection resource.
In addition, the described connecting object of present embodiment can be database connection object, JMS connecting object or JCA connecting object or the like.That is to say that if be database connection object, so, the data access that application system module 101 realizes should be a database access relevant with database manipulation.If be JMS connecting object or JCA connecting object etc., 101 of application system modules should be by JMS message or JCA message etc. another system to be conducted interviews.As for how utilizing the fulfillment database visit, how to utilize JMS message or JCA message etc. that another system is conducted interviews and then belong to prior art, relevant with the business of reality, repeat no more herein.
In the practical application, connection strategy can also be set in advance in connection pool module 102, determine and distribute the connection agency who does not comprise physical connection to application system module 101, still distribute connecting object with physical connection according to connection strategy.For this scheme is described better, be described in detail with method embodiment two below.
Fig. 4 is the flow chart of method embodiment two.As shown in Figure 4, method embodiment two can comprise:
Step 401: application system module 101 sends connection request to connection pool module 102.
Step 402: connection pool module 102 judges whether to provide the connection agency to application system module 101 according to the connection strategy of preserving in advance, if then execution in step 403; Otherwise, execution in step 410.
Step 403: connection pool module 102 is acted on behalf of creation module 103 to connection and is sent connection request.
Step 404: connect and act on behalf of the connection agency that creation module 103 establishments do not comprise physical connection, and the connection that will create agency returns to connection pool module 102.
Step 405: the connection agency that connection pool module 102 will obtain is transmitted to application system module 101.
Step 406: application system module 101 utilizes the connection agency who obtains to initiate data access.
Step 407: in the data access process, connect the agency and send connection request to connection pool module 102, connection pool module 102 is returned the connecting object with physical connection to connecting the agency.
Step 408: connect the agency and utilize the connecting object that returns to realize data access with physical connection.
Step 409: application system module 101 is closed and is connected the agency, and the connecting object that the connection agency will have physical connection is discharged in the connection pool module 102, withdraws from this flow process again.
Step 410: the connecting object with physical connection that connection pool module 102 has been set up self returns to application system module 101.
Step 411: application system module 101 directly realizes data access by the connecting object with physical connection.
In this step, application system module 101 can realize data access.After this, when application system module 101 is finished data access, can also further utilize step 412 to close and connect the agency, and discharge connecting object.
Step 412: application system module 101 is closed and is connected the agency, and the connecting object that the connection agency will have physical connection is discharged in the connection pool module 102.
In this step, after the connection agency discharged connecting object, it is shared that this connecting object no longer is employed system module 101, then belongs to prior art as for the method that discharges connecting object, repeats no more herein.
Use the present embodiment scheme, can in connection pool module 102, connection strategy be set, both can adopt the mode that connects the agency, also can adopt the mode of prior art to distribute connection, distribute the flexibility that connects thereby can increase.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, a kind of realization is characterized in that based on the equipment of the data access of connection pool this equipment comprises:
The application system module, be used for sending connection request to the connection pool module, utilize the connection agency who does not comprise physical connection who obtains to initiate data access, described connection agency sends connection request to the connection pool module when initiating data access, obtain connecting object, realize data access by connecting object with physical connection with physical connection;
The connection pool module is used to receive the connection request of described application system module, acts on behalf of creation module to connection and sends connection request, and the connection agency that creation module returns is acted on behalf of in described connection be transmitted to the application system module; Also be used to receive the connection request that connects the agency, and the connecting object with physical connection that self has been set up offers the connection agency;
Connect and act on behalf of creation module, be used to receive the connection request of connection pool module, create the connection agency who does not comprise physical connection, and the connection that will create agency returns to the connection pool module.
2, equipment according to claim 1 is characterized in that, described connection pool module comprises:
The connection management module is used to receive the connection request from the application system module, acts on behalf of creation module to connection and sends connection request, and will connect and act on behalf of connection that creation module returns and act on behalf of and be transmitted to the application system module;
Connecting object pond module is used for providing the connecting object of having set up with physical connection when receiving connection request.
3, equipment according to claim 2 is characterized in that, described connection management module comprises:
Connect agency's control submodule, be used to receive the connection request of application system module, act on behalf of creation module to connection and send connection request, and will connect and act on behalf of connection that creation module returns and act on behalf of and be transmitted to the application system module;
Described connection management module further comprises:
Differentiate submodule, be used to receive connection request from the application system module, judge whether to provide the connection agency according to the connection strategy of preserving in the memory module, if then the connection request with the application system module sends to connection agency control submodule to the application system module; Otherwise, directly connection request is sent to connecting object control submodule;
Connecting object is controlled submodule, is used to receive the connection request of application system module, send connection request to connecting object pond module, and the connecting object with physical connection that connecting object pond module is returned returns to the application system module;
Memory module, the connection strategy that is used to preserve the expression connection type, described connection type is connection agency who does not comprise physical connection or the connecting object with physical connection;
Described application system is further used for: according to the connecting object with physical connection that is returned by the connection management module, and directly realize data access by the connecting object with physical connection.
4, a kind of realization is characterized in that based on the method for the data access of connection pool this method comprises:
The application system module sends connection request to the connection pool module, and the connection pool module is acted on behalf of the connection agency who does not comprise physical connection who obtains establishment the creation module according to connection request from connection, and will connect to act on behalf of and return to the application system module;
The connection agency that the utilization of application system module obtains initiates data access, and described connection agency obtains the connecting object with physical connection from the connection pool module when initiating data access, and realizes data access by the connecting object with physical connection.
5, method according to claim 4 is characterized in that, when the connection pool module received connection request from the application system module, this method further comprised:
Described connection pool module judges whether to provide the connection agency to the application system module according to the connection strategy of preserving in advance, if then continue to carry out from connection and act on behalf of the step of obtaining the connection agency who does not comprise physical connection the creation module.
6, method according to claim 5 is characterized in that, needs are not when the application system module provides connection to act on behalf of when the connection pool module is judged according to the connection strategy of preserving in advance, and this method further comprises:
The connecting object with physical connection that the connection pool module has been set up self returns to the application system module, and the application system module directly realizes data access by described connecting object with physical connection, withdraws from this flow process again.
According to each described method of claim 4 to 6, it is characterized in that 7, described by after the connecting object realization data access with physical connection, this method further comprises:
The application system module is closed described connecting object with physical connection, and the connecting object that will have a physical connection is discharged in the connection pool module.
8, method according to claim 7 is characterized in that, described connecting object is database connection object, Java messenger service JMS connecting object, or Java connects framework JCA connecting object.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101917399A (en) * | 2010-07-02 | 2010-12-15 | 大唐微电子技术有限公司 | Method and system for deploying application of smart card, and security module |
| CN102193820A (en) * | 2010-03-03 | 2011-09-21 | 软件股份公司 | Connection handler and method for providing applications with heterogeneous connection objects |
| CN103500180A (en) * | 2013-09-09 | 2014-01-08 | 北京思特奇信息技术股份有限公司 | Distributed transaction processing method based on connection pool management |
| CN104503999A (en) * | 2014-12-08 | 2015-04-08 | 畅捷通信息技术股份有限公司 | Data acquisition method and device under high concurrency |
| CN104780224A (en) * | 2015-04-30 | 2015-07-15 | 北京奇艺世纪科技有限公司 | Remote service calling method and device |
| CN105677693A (en) * | 2015-09-18 | 2016-06-15 | 联动优势科技有限公司 | Method and device for accessing databases |
| CN110633956A (en) * | 2019-09-05 | 2019-12-31 | 国网上海市电力公司 | Information safety protection system of interactive service type microgrid |
| US10726035B2 (en) | 2015-10-15 | 2020-07-28 | Huawei Technologies Co., Ltd. | Database access control method and apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815469B (en) * | 2005-02-01 | 2010-04-28 | 华为技术有限公司 | Database connection resource management method |
| CN100458790C (en) * | 2006-12-31 | 2009-02-04 | 中国建设银行股份有限公司 | Method and system for access data base |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102193820A (en) * | 2010-03-03 | 2011-09-21 | 软件股份公司 | Connection handler and method for providing applications with heterogeneous connection objects |
| US9547536B2 (en) | 2010-03-03 | 2017-01-17 | Software Ag | Connection handler and method for providing applications with heterogeneous connection objects |
| CN101917399A (en) * | 2010-07-02 | 2010-12-15 | 大唐微电子技术有限公司 | Method and system for deploying application of smart card, and security module |
| CN101917399B (en) * | 2010-07-02 | 2014-06-04 | 大唐微电子技术有限公司 | Method and system for deploying application of smart card, and security module |
| CN103500180A (en) * | 2013-09-09 | 2014-01-08 | 北京思特奇信息技术股份有限公司 | Distributed transaction processing method based on connection pool management |
| CN104503999A (en) * | 2014-12-08 | 2015-04-08 | 畅捷通信息技术股份有限公司 | Data acquisition method and device under high concurrency |
| CN104780224A (en) * | 2015-04-30 | 2015-07-15 | 北京奇艺世纪科技有限公司 | Remote service calling method and device |
| CN105677693A (en) * | 2015-09-18 | 2016-06-15 | 联动优势科技有限公司 | Method and device for accessing databases |
| US10726035B2 (en) | 2015-10-15 | 2020-07-28 | Huawei Technologies Co., Ltd. | Database access control method and apparatus |
| CN110633956A (en) * | 2019-09-05 | 2019-12-31 | 国网上海市电力公司 | Information safety protection system of interactive service type microgrid |
Also Published As
| Publication number | Publication date |
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| CN101383814B (en) | 2012-04-04 |
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