#数据库连接配置spring.datasource.url=jdbc:mysql://localhost:3306/springbootspring.datasource.username=rootspring.datasource.password=rootspring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver#mybatis配置#扫描
启动类 TestMybatisApplication.java packagecom.test.mybatis;importorg.springframework.boot.SpringApplication;importorg.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublicclassTestMybatisApplication{publicstaticvoidmain(String[]args){SpringApplication.run(TestMybatisApplication.class,a...
package com.oracle.db23c.springboot3withjpa.controller; import com.oracle.db23c.springboot3withjpa.entity.NewVideo; import com.oracle.db23c.springboot3withjpa.vo.UniversalSearch; import com.oracle.db23c.springboot3withjpa.entity.VideoEntity; import com.oracle.db23c.springboot3withjpa.service.Main...
第6节 Spring Boot JPA/Hibernate/Spring Data概念 什么是JPA? l JPA全称Java Persistence API.JPA通过JDK 5.0注解或XML描述对象-关系表的映射关系,并将运行期的实体对象持久化到数据库中。百度百科JPA 什么是JPA? l 在上面只是一个JPA的定义,我们看看另外一段更能看出是什么的描述: l JPA(Java Persistence API...
In this article, we will learn about Many-to-Many relationships in JPA and how to implement them in a Spring Boot application. Let’s get started!@ManytoMany annotationA many-to-many relationship occurs when multiple records in one table are associated with multiple records in another table. ...
JPA分页 当请求的数据总量很大时,这时候前端往往都会要求后端将数据分页返回。本文介绍SpringBoot下后端数据层使用JPA+MySQL时,如何分页返回数据(除了当前页面的数据,往往还要返回总页数这项数据)。 一、从头到尾自己实现分页: Controller层:使用@RequestParam绑定page和pageSize参数,调用Service ...
### 摘要 Spring Boot 是一个旨在创建独立、基于 Spring 框架的生产级应用程序的解决方案,它通过简化 Spring 应用的初始搭建和开发流程,提高了开发效率。MyBatis 作为一个出色的持久层框架,它允许开发者自定义 SQL 语句、存储过程以及复杂的映射关系。将 Spring Boot 与 MyBatis 结合使用,可以显著提升开发数据驱动型...
You only need the spring-boot-start-data-jpa dependency to enable JPA support in a Spring Boot application. Add the following dependency to your build.gradle file: implementation 'org.springframework.boot:spring-boot-starter-data-jpa' If you are using Maven, add the following dependencies to ...
@RunWith(SpringRunner.class)@SpringBootTest(classes = {Application.class})publicclassDeleteFromRepositoryUnitTest{@AutowiredprivateBookRepository repository; Book book1; Book book2; List<Book> books;// data initialization@TestpublicvoidwhenDeleteByIdFromRepository_thenDeletingShouldBeSuccessful(){ repository...
JPA分页 当请求的数据总量很大时,这时候前端往往都会要求后端将数据分页返回。本文介绍SpringBoot下后端数据层使用JPA+MySQL时,如何分页返回数据(除了当前页面的数据,往往还要返回总页数这项数据)。 一、从头到尾自己实现分页: Controller层:使用@RequestParam绑定page和pageSize参数,调用Service ...