CN102004634A - Hierarchical business management system - Google Patents
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- CN102004634A CN102004634A CN2009101949446A CN200910194944A CN102004634A CN 102004634 A CN102004634 A CN 102004634A CN 2009101949446 A CN2009101949446 A CN 2009101949446A CN 200910194944 A CN200910194944 A CN 200910194944A CN 102004634 A CN102004634 A CN 102004634A
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Abstract
The invention discloses a hierarchical business management system, comprising a database layer, a permanent layer, a business logic layer and a presentation layer. The database layer saves the business data, the permanent layer is coupled with the database layer to operate the database layer and perform the exchange the business data, and the permanent layer is realized by a Hibernate object relation mapping frame. The business logic layer is coupled with the permanent layer, obtains the business data from the permanent layer, and reference the business logic to the business data, wherein the business logic comprises judgment of the data type and the data range of the obtained business data, and the business logic layer does not exchange the data with the database layer directly. The presentation layer is coupled with the business logic layer, provides an interaction interface for interacting with the user, and instructs the business logic layer to obtain the business data and to apply the business logic after obtaining the user instruction.
Description
Technical field
The present invention relates to database technology, especially design a kind of business management system of layering.
Background technology
The world today, increasingly competitive, enterprise is in the face of the immense pressure of domestic and international dual competition, and many enterprises take up perfect in built-in system.In the case, enterprise needs a information exchanging system that is fit to own company, it can not only be applied to information system management, interchange, the resource sharing of enterprises, also can strengthen the development advantage of external information, become and to form netted intercommunion platform of getting in touch between enterprise and employee, enterprise and enterprise, enterprise and the client enterprise.Business management system can make the cost of enterprise reduce, and is the management process standardization.Realize convenient shared Business Management Platform, can also more efficient picked-up and handle effective information, realize all kinds of flow operations and management thereof more easily.
Layered architecture has defined realizes the different interfaces that concern between the code, and the change that allows to close set mode can not cause great destruction to the code of other layers.Simultaneously, layering has also determined the type in the middle layer of appearance therebetween.The layering rule is as follows:
1, layer communicates from top to bottom.Each layer only depends on other direct lower floors.
2, except its direct lower floor, each layer is not all known any other layer.
MVC Design Mode commonly used has at present just embodied this layered architecture, and presentation layer, Business Logic and database layer are wherein arranged.With reference to shown in Figure 1, introduce this three-decker respectively:
Presentation layer 10: i.e. V in the MVC pattern provides the interface with user interactions.The GUI (graphic user interface) and the WEB page are two typical examples of presentation layer 10.
Business Logic 11: i.e. C in the MVC pattern, be used to realize the miscellaneous service logic, he is equivalent to the brain of total system, is responsible for the thinking data and how obtains, how to handle and data flow where.
Database layer 12: i.e. M in the MVC pattern, representative data entity.It also can be database.Be responsible for depositing and managing the persistence business datum of application program.
Though layered architecture is the much progress in the database technology, along with the requirement of using is more and more higher, above-mentioned three-decker can not adapt to this application demand fully, needs more careful, effective hierarchy to satisfy new application requirements.
Summary of the invention
The present invention proposes a kind of business management system of layering, and system has been carried out more careful layering, to satisfy the application demand of requirements at the higher level.
The business management system of this layering comprises database layer, persistent layer, Business Logic and presentation layer.
Database layer is deposited business datum.Persistent layer is coupled to database layer, and database layer is operated, and carries out the exchange of business datum, and wherein, this persistent layer is realized by Hibernate Object Relation Mapping framework.Business Logic is coupled to persistent layer, obtain business datum from persistent layer, business datum is quoted service logic, and wherein service logic comprises the data type to the business datum of obtaining, the judgement of data span, wherein Business Logic directly and database layer carry out exchanges data.Presentation layer is coupled to Business Logic, and interactive interface and user interactions are provided, obtain user instruction after the indicating services logical layer obtain business datum and applied business logic.
Persistent layer wherein comprises Hibernate configuration file and persistence class, and the Hibernate configuration file comprises the descriptor that connects database and the positional information of Object Relation Mapping file.The persistence class is mapped to entity class in the database layer by the Hibernate configuration file.
Adopt technical scheme of the present invention, realize by persistent layer fully for the operation of database, thereby make Business Logic from concrete data manipulation, spin off, improved the security of database structure and the dirigibility of use.
Description of drawings
Fig. 1 has disclosed the structural drawing of three layers of traditional layered architecture.
Fig. 2 has disclosed the structural drawing of the business management system of layering of the present invention.
Embodiment
With reference to shown in Figure 2, a kind of business management system of layering comprises database layer 20, persistent layer 21, Business Logic 22 and presentation layer 23.
For the design of persistent layer 21, available by following several schemes:
1、JDBC
Many developers carry out the exploitation of database program with JDBC.All use the DAO pattern under a lot of situations of mode in this, adopt SQL to inquire about.Though can make application code and concrete database manufacturer and database location irrelevant with this mode, but JDBC is low-level database access mode, JDBC does not support OO database to represent.The JDBC database is represented fully around relational model of database.Write such code in the DAO of large-scale application program, maintenance is very large.
2、EJB
In the standard of J2EE, defined the solution of two kinds of persistences for EJB: a kind of BMP of being, another kind are CMP.Wherein CMP does not need SQL statement is joined in the code.At present, in the application of adopting J2EE, EJB CMP mode has obtained widespread use.More attractive is that along with the development of EJB standard, CMP has also comprised the content of some high-level relationships.But, the use more complicated of CMP, difficult to grasp concerning a lot of developers.And, be not all to be adapted in all cases adopting EJB in the system, and the understanding EJB standard of wanting to be perfectly clear also is very time-consuming.Before with the EJB coding, to allow the expert understand API earlier, need to understand the technology that will pay close attention to when each container is disposed then.In addition, the performance of commercial container and support neither be fine under many situations.
3、JDO
JDO is the standard of a storage java object, the proposition of JDO standard 1.0 can make you that energy is concentrated on design Java object model, in the different aspects of enterprise application software framework, store traditional Java object (Plain Old Java Objects then, be called for short POJOs), adopt the JDOQL language to carry out the SQL operation.Some companies (comprising sun) attempts is designed and Implemented the JDO product according to the JDO standard, however they all can not well realize, and poor in the performance optimization.
4、Hibernate：
Hibernate is the Object Relation Mapping framework of an open source code, and it makes java applet person arbitrary use object programming thinking come the manipulation data storehouse to the object encapsulation that JDBC has carried out lightweight.Mapping between it not only provides from the java class to the tables of data also provides data query and Restoration Mechanism.With respect to using JDBC and SQL to come database hand-manipulated, Hibernate can significantly reduce the workload of operating database.Hibernate can utilize proxy mode to simplify the process that is written into class in addition, this will significantly reduce the write amount of Hibernate QL from the code of database extraction data of utilizing, can be well integrated thereby save development time and cost of development Hibernate with multiple Web server or application server, nowadays supported nearly all popular database server.
The Hibernate technology is that ORM (object is to relationship map) provides concrete solution, in fact exactly object among the JAVA and the table in the relational database is done a mapping.Realize the solution of the automatic conversion between them.
Hibernate has played the effect of a bridge between JAVA object and relational database, be responsible for mapping between the two, has also encapsulated the JDBC technology in Hibernate inside, provides OO data access api interface to last layer.
The present invention selects for use Hibernate to realize persistent layer 21.
The Hibernate characteristics are as follows.
1) it is responsible for the mutual of coordination software and database, and the complete scheme of management persistent data is provided, and allows the developer can be absorbed in the exploitation of service logic.
2) application person does not need to follow too many rule and Design Mode, can use flexibly.
3) it is the mapping framework of an open source code, and JDBC has only been done the encapsulation of lightweight, allows the JAVA program can the OO manipulation data storehouse of considering carefully of arbitrary utilization, need not to consider resource problem.
Introduce as top, persistent layer 21 comprises Hibernate configuration file 210 and persistence class 211.
Descriptor and relationship map file position and some other settings of connecting database are arranged in the Hibernate configuration file 210, and this configuration file should be arranged in the classpath of application.The configuration file of Hibernate has two kinds of forms, and a kind of is the file of xml form, also has a kind of Java of being property file, adopts the form of " key=value ".
If create the configuration file of Hibernate with the xml form, the default document of this configuration file is called hibernate-config.xml.
Concrete code is as follows:
<！DOCTYPE?hibernate-configuration
PUBLIC″-//Hibernate/Hibernate?Configuration?DTD?3.0//EN″
″http://hibernate.sourceforge.net/
hibernate-configuration-3.0.dtd″>
<hibernate-configuration>
<session-factory>
<property?name＝″dialect″>
org.hibernate.dialect.Oracle9Dialect
</property>
<property?name＝″connection.driver_class″>
oracle.jdbc.driver.OracleDriver
</property>
<property?name＝″connection.username″>zcc</property>
<property?name＝″connection.password″>zcc</property>
<property?name＝″connection.url″>
jdbc:oracle:thin:@localhost:1521:orcl</property>
<property?name＝″show_sql″>true</property>
<property?name＝″format_sql″>true</property>
<property?name＝″hibernate.current_session_context_class″>
thread
</property>
<mapping?resource＝″pojo/Charge.hbm.xml″/>
<mapping?resource＝″pojo/Customer.hbm.xml″/>
<mapping?resource＝″pojo/Mobiles.hbm.xml″/>
<mapping?resource＝″pojo/Operator.hbm.xml″/>
<mapping?resource＝″pojo/User.hbm.xml″/>
<mapping?resource＝″pojo/Message.hbm.xml″/>
</session-factory>
</hibernate-configuration>
Above hibernate-config.xml file has comprised a series of attributes and property value thereof, and Hibernate will connect database according to these attributes.Attribute in the table 1 pair configuration file has been done some descriptions.
Table 1 configuration file attribute
| Attribute | Describe |
| Connect.url | The URL that connects database |
| Dialect | The dialect that database uses |
| Connect.username | User name |
| Connect.password | User cipher |
| Connect.driver_class | The employed driving of accessing database |
| Show_sql | Show the sql statement at control desk |
| Format_sql | Be formatted in the sql statement that control desk shows |
In the hibernate-config.xml file＜mapping resource/〉element then is the position that has provided object one mapped file.
The example of persistence class need be persisted to entity class in the database by Hibernate.The persistence class all is the entity domains class in the domain model usually.The persistence class meets the standard of JavaBean, comprises some attributes, and corresponding with it getXXX (), setXXX () method.
Be the example of a persistence class below:
package?pojo；
import?java.util.HashSet；
import?java.util.Set；
public?class?Operator{
private?int?operator_id；
private?String?operator_name；
private?String?operator_pwd；
private?intis_admin；
private?Set<Message>messages＝new?HashSet<Message>()；
public?int?getIs_admin(){
return?is_admin；
}
public?void?setIs_admin(int?is_admin){
this.is_admin＝is_admin；
}
public?int?getOperator_id(){
return?operator_id；
}
public?void?setOperator_id(int?operator_id){
this.operator_id＝operator_id；
}
public?String?getOperator_name(){
retu?rn?operator_name；
}
public?void?setOperator_name(String?operator_name){
this.operator_name＝operator_name；
}
public?String?getOperator_pwd(){
return?operator_pwd；
}
public?void?setOperator_pwd(String?operator_pwd){
this.operator_pwd＝operator_pwd；
}
public?Set<Message>getMessages(){
return?messages；
}
public?void?setMessages(Set<Message>messages){
this.messages＝messages；
}
}
After having had Hibernate configuration file 210 and persistence class 211, also need to create relation-mapped file.Relation-mapped file is to adopt the xml form to come the file of the mapping between appointed object and the relational database.During operation, Hibernate can generate SQL statement according to this mapped file, is the example of a relation-mapped file below, Customer.hbm.xml by name:
<？xml?version＝″1.0″encoding＝″UTF-8″？>
<！DOCTYPE?hibernate-mapping?PUBLIC
″-//Hibernate/Hibernate?Mapping?DTD?3.0//EN″
″http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd″>
<hibernate-mapping?package＝″pojo″>
<class?name＝″Customer″table＝″TCUSTOMER″>
<id?name＝″customer_id″column＝″CUSTOMER_ID″>
<generator?class＝″increment″></generator>
</id>
<property?name＝″id_type″column＝″ID_TYPE″/>
<property?name＝″id_number″column＝″ID_NUMBER″/>
<property name＝″customer_name″column＝″CUSTOMER_NAME″/>
<property?name＝″customer_birthday″
column＝″CUSTOMER_BIRTYDAY″>
</property>
<property?name＝″customer_sex″column＝″CUSTOMER_SEX″/>
<property name＝″customer_address″column＝″CUSTOMER_ADDRESS″/>
<set?name＝″users″cascade＝″all″lazy＝″false″>
<key?column＝″CUSTOMER_ID″/>
<one-to-many?class＝″User″/>
</set>
</class>
</hibernate-mapping>
Wherein＜id name=" customer_id " column=" CUSTOMER_ID "〉＜generatorclass=" increment "〉＜/generator〉＜/id〉shown the major key generation strategy of Hibernate.Hibernate uses object identifier (OID) to set up the corresponding relation that writes down in object in the internal memory and the database table.Object OID is corresponding with major key in the database table, for uniqueness and the immutableness that guarantees OID, should allow the Hibernate assignment, rather than manual assignment.Hibernate one has nine kinds of major key generation strategies, carries out description one by one below:
1、Assigned
The Assigned mode generates Major key by program, and will specify before at save () otherwise can dish out unusual.Characteristics: the generation value of major key is fully by user's decision, and is irrelevant with underlying database.The user need safeguard Major key, will specify Major key before calling session.save ().
2、Hilo
Hilo uses high low level algorithm to generate major key, and high low level algorithm uses a high-value and a low-value, then two values that algorithm obtains is stitched together as the unique major key in the database.The Hilo mode needs extra database table and field that the high-value source is provided.It is hibernate_unique_key that acquiescence is asked the table that uses under the condition, and default fields is called next_hi.Next_hi must have a record otherwise mistake can occur.Characteristics: need the support of extra database table, can guarantee the uniqueness of major key in the same database, but can not guarantee the uniqueness of major key between a plurality of databases.Hilo major key generating mode safeguarded by Hibernate, so Hilo mode and underlying database are irrelevant, but the value of the table that should manual modification hi/lo algorithm use, otherwise it is unusual to cause that major key repeats.
3、seqhilo
Seqhilo also is to use high low level algorithm to generate major key, based on sequence, needs underlying database to support sequence.Characteristics: do not need to build table, high-value is provided by sequence.
4、Increment
The Increment mode takes the mode of automatic increase to generate new Major key to Major key, but requires the support Sequence of underlying database.As Oracle, DB2 etc.The setting that need in mapped file xxx.hbm.xml, add the Increment identifier.Characteristics: safeguard by Hibernate itself, be applicable to all databases, be not suitable for more new database of multi-course concurrency, be fit to single process accessing database.Can not be used for cluster environment.
5、Identity
Identity supports automatic increase at that time according to underlying database, and different databases is with different major key growth patterns.Characteristics: relevant with underlying database, require database to support Identity, as being auto_increment among the MySQI, be Identity among the SQL Server, the database of support has MySql, SQL Server, DB2, Sybase and HypersonicSQL.Identity need not Hibernate and user's interference, and it is comparatively convenient to use, but is not easy to transplanting program between different databases.
6、Sequence
Sequence needs underlying database to support the Sequence mode, for example oracle database etc.Characteristics: the support sequence that needs underlying database, support the database of sequence that transplanting program between disparate databases such as DB2, PostgreSql, Qracle, SAPDb is arranged, be transplanted to the database of not supporting sequence from the database of supporting sequence especially and need revise configuration file.
7、Native
Native major key generating mode can be selected Identity, Sequence, Hilo major key generating mode automatically according to different underlying databases.Characteristics: adopt different major key generating modes according to different underlying databases.Because Hibernate can adopt different mapping modes according to underlying database, therefore be convenient to program portable, if when using a plurality of database in the project, can make in this way.
8、UUID
UUID uses 128 UUID algorithms to generate major key, can guarantee the major key uniqueness under the network environment, also just can guarantee the uniqueness of major key under disparate databases and different server.Characteristics: can guarantee the major key uniqueness in the database, the major key of generation takies many memory spaces.
9、Foreign?GUID
Foreign is used for one-one relationship.GUID major key generating mode has used a kind of particular algorithm, guarantees to generate the uniqueness of major key, supports SQL Server and MySQL.
Adopt technical scheme of the present invention, realize by persistent layer fully for the operation of database, thereby make Business Logic from concrete data manipulation, spin off, improved the security of database structure and the dirigibility of use.
Claims (2)
1. the business management system of a layering is characterized in that, comprising:
Database layer is deposited business datum;
Persistent layer is coupled to database layer, and database layer is operated, and carries out the exchange of business datum, and wherein, this persistent layer is realized by Hibernate Object Relation Mapping framework;
Business Logic, be coupled to persistent layer, obtain business datum from persistent layer, business datum is quoted service logic, wherein said service logic comprises the judgement to the data type of the business datum of obtaining, data span, wherein said Business Logic directly and database layer carry out exchanges data;
Presentation layer is coupled to Business Logic, and interactive interface and user interactions are provided, obtain user instruction after the indicating services logical layer obtain business datum and applied business logic.
2. the business management system of layering as claimed in claim 1 is characterized in that, described persistent layer comprises:
The Hibernate configuration file comprises the descriptor that connects database and the positional information of Object Relation Mapping file;
The persistence class is mapped to entity class in the described database layer by the Hibernate configuration file.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617167A (en) * | 2013-10-22 | 2014-03-05 | 芜湖大学科技园发展有限公司 | Universal metadata/ relation mapping frame |
| CN103678634A (en) * | 2013-12-19 | 2014-03-26 | 北京锐安科技有限公司 | Method for improving data query speed in J-Hi open-source development platform |
| CN105205103A (en) * | 2015-08-25 | 2015-12-30 | 北京京东尚科信息技术有限公司 | Method and device for accessing database |
| CN105677732A (en) * | 2015-12-28 | 2016-06-15 | 国云科技股份有限公司 | Method for designing JavaBean major key with service attribute identifier |
| CN106227535A (en) * | 2016-07-25 | 2016-12-14 | 四川易想电子商务有限公司 | E-commerce system based on WEB |
| CN107092512A (en) * | 2017-06-14 | 2017-08-25 | 成都三零凯天通信实业有限公司 | A kind of cross-platform remote update system and method |
| CN109145014A (en) * | 2017-06-15 | 2019-01-04 | 北京京东尚科信息技术有限公司 | The method and apparatus for generating elastic searching request |
| CN110321355A (en) * | 2019-07-12 | 2019-10-11 | 杭州美巴科技有限公司 | A kind of adaptive partial query field system and execute method |
| CN110851287A (en) * | 2019-09-25 | 2020-02-28 | 视联动力信息技术股份有限公司 | Data processing method, device and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617167B (en) * | 2013-10-22 | 2017-05-31 | 芜湖大学科技园发展有限公司 | A kind of general metadata/Hibernate |
| CN103617167A (en) * | 2013-10-22 | 2014-03-05 | 芜湖大学科技园发展有限公司 | Universal metadata/ relation mapping frame |
| CN103678634A (en) * | 2013-12-19 | 2014-03-26 | 北京锐安科技有限公司 | Method for improving data query speed in J-Hi open-source development platform |
| CN105205103B (en) * | 2015-08-25 | 2019-09-20 | 北京京东尚科信息技术有限公司 | The method and apparatus for accessing database |
| CN105205103A (en) * | 2015-08-25 | 2015-12-30 | 北京京东尚科信息技术有限公司 | Method and device for accessing database |
| CN105677732A (en) * | 2015-12-28 | 2016-06-15 | 国云科技股份有限公司 | Method for designing JavaBean major key with service attribute identifier |
| CN106227535A (en) * | 2016-07-25 | 2016-12-14 | 四川易想电子商务有限公司 | E-commerce system based on WEB |
| CN107092512A (en) * | 2017-06-14 | 2017-08-25 | 成都三零凯天通信实业有限公司 | A kind of cross-platform remote update system and method |
| CN109145014A (en) * | 2017-06-15 | 2019-01-04 | 北京京东尚科信息技术有限公司 | The method and apparatus for generating elastic searching request |
| CN110321355A (en) * | 2019-07-12 | 2019-10-11 | 杭州美巴科技有限公司 | A kind of adaptive partial query field system and execute method |
| CN110851287A (en) * | 2019-09-25 | 2020-02-28 | 视联动力信息技术股份有限公司 | Data processing method, device and computer readable storage medium |
| CN111724625A (en) * | 2020-08-05 | 2020-09-29 | 湖南汽车工程职业学院 | Parking lot parking path optimization system based on 5G and Internet of things |
| CN113722387A (en) * | 2021-07-27 | 2021-11-30 | 深圳兆日科技股份有限公司 | Database adaptation method, device, equipment, storage medium and computer program |
| CN113722387B (en) * | 2021-07-27 | 2024-02-23 | 深圳兆日科技股份有限公司 | Database adaptation method, apparatus, device, storage medium and computer program |
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Application publication date: 20110406 |