Spring boot from scratch integrates spring data JPA to realize simple application

This paper introduces the simple application of spring boot integrating spring data JPA What is spring data jpa? We can't help thinking about it. In fact, spring data jpa uses hibernate by default and spring data jpa technology, which implements the template Dao layer. It only needs to inherit an interface in Dao to easily complete "add, d ...

Posted by k4pil on Fri, 22 May 2020 02:53:32 -0700

C#Data Operations Series - 10 NHibernate Trial

0. Preface In the last article, you basically completed the introductory tutorial for EF Core.Starting with this article, we'll try to explore more ORM frameworks on the.net core platform.So let's start with NHibernate. 1. Introduction to NHibernate NHibernate is the C#version of Hibernate, known as the pillar of ORM in Java (at least once).Hib ...

Posted by Josh18657 on Tue, 19 May 2020 18:04:34 -0700

Let hql support bitwise and operation

Absrtact: at present, hibernate does not support bitwise and operation, and recent projects need such operation again. Fortunately, hibernate provides related extension functions and can realize relevant operation by itself 1, Background In the work, MySQL is used as the database, java is used as the language of the p ...

Posted by goldages05 on Fri, 01 May 2020 13:39:48 -0700

Hibernate learning notes (6)

1, Object navigation query Previous relationships between customers and contacts were one to many: One to many Scenario: query the customer according to the customer id, and find out all contacts of the customer @Test public void selectTest(){ SessionFactory sessionFactory = null; Session session = null; Transacti ...

Posted by 01706 on Thu, 30 Apr 2020 11:07:51 -0700

springboot parameter check

SpringBoot has a built-in Hibernate Validator as the checking framework, so as long as we have integrated SpringBoot, we can use Hibernate Validator to complete parameter checking. Common Notes @Null: The commented property must be null; @NotNull: The commented property cannot be null; @AssertTrue: The commented property must be true; @AssertF ...

Posted by soldbychris on Sat, 18 Apr 2020 21:09:36 -0700

spring boot jap+mybatis druid multi data source configuration

In fact, it is not difficult to configure spring boot jap+mybatis druid with multiple data sources The key cannot be confused. Otherwise, after the configuration is completed, the connection of the druid data source may explode some strange errors, such as connection timeout, connection unavailable, etc Reference resources: Create a DataSour ...

Posted by marcusb on Sat, 04 Apr 2020 04:01:17 -0700

(transfer) the server opens a new Multithread to use HibernateSession to prevent No session

Original link of blogger: https://blog.csdn.net/zhengwei223/article/details/30506455 The new thread needs to bind the Hibernate session to use the functions of transaction and delay loading in the new thread, otherwise no session exception will be exposed; terms of settlement: //Business method new Runnable() { @Over ...

Posted by mourisj on Fri, 03 Apr 2020 10:28:25 -0700

Integration of spring boot 2. X development case Quartz task management system

CRUD task management system based on spring boot 2. X + quartz is suitable for small and medium-sized projects. CRUD task management system based on spring boot + quartz: https://gitee.com/52itstyle/spring-boot-quartz development environment JDK1.8,Maven,Eclipse Technology stack SpringBoot2.0.1,thymeleaf3.0.9,quartz2.3.0,iview,vue,layer,AdminL ...

Posted by deception54 on Fri, 03 Apr 2020 04:17:34 -0700

Introduction to Hibernate II (add, delete, modify and check)

Hibernate's addition, deletion, modification and query increase There are many ways to add, such as save, persist, savaoroupdate and merge. The use method is as follows. The code here follows the previous section package test; import java.util.Date; import org.hibernate.Session; import org.hibernate.SessionFactory ...

Posted by L0j1k on Thu, 02 Apr 2020 15:28:25 -0700

Seven notes of ssh integration combined with xml

1. In the previous pure xml mode, we have many configuration files. We can use annotation and xml to develop. In this way, our configuration files will be much less. At the same time, we can directly see the configuration in the class, so that we can quickly build a ssh integration project First of all, we should consider: what do we need to re ...

Posted by FraXTC on Wed, 01 Apr 2020 16:31:22 -0700