Spring data JPA dynamic query realization method

Abstract

The invention relates to a spring data JPA dynamic query realization method, which comprises the following steps that the dynamic query confirming class created on the basis of spring Factory Bean is adopted for judging whether an invoked interface method needs the dynamic query or not; dynamic query sentences are created by adopting a dynamic JPA query class created on the basis of the spring Factory Bean; the dynamic inquiry sentences are sent to a JPA framework by the dynamic JPA query class; the JPA query class converts inquiry results of the JPA framework into the specific type of return objects. When the spring data JPA dynamic query realization method is adopted, the definition declaration only through adopting an interface method can be realized, the realization of any practical coding logics is not needed, when the later page inquiry requirements are changed, only the attribute and annotation increase or modification in the corresponding VO class is needed, the burden of development personnel is greatly reduced, the error generating possibility of the page query development is reduced, the software maintenance performance is enhanced, the productivity of software development is improved, and a wider application range is realized.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to the field of dynamic query, and specifically refers to a method for implementing dynamic query with Spring data JPA. Background technique [0002] Spring data JPA refers to a Spring data persistence architecture, which is Spring (an open source framework created to solve the complexity of enterprise application development) based on ORM (Object / Relation Mapping, object-relational mapping) framework, JPA (Java Persistence API , an enterprise-level standard for accessing Java relational data, JPA describes the mapping relationship between objects and relational tables through JDK5. The application framework is an enterprise-level Java modern data access technology, which perfectly combines the ease of use of Spring and the powerful data access function of JPA. Developers are using Spring data (a tool for simplifying database access , and supports the open source framework of clo...

AI Technical Summary

Problems solved by technology

But first of all, this needs to be configured using Xml, and it still needs to write more complex scripts. In addition, the entire programming needs to use the Mybatis architecture, which is not applicable to development teams using hibernate or JPA architecture.

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