I believe everyone is familiar with Oracle. It is a large database. As for the database, I believe you are all familiar with it. As a software system, whether it is an App, a small program, or a traditional web site that we often make, we all have users. Information and related business data are […]
Tag: jdbctemplate
JdbcTemplate integrated with MySQL
Here I will use a car brand as an example for the purpose of learning. Of course, my skills are limited, and there may be some irregularities in code writing and SQL loopholes. Just take a look at it, don’t comment if you don’t like it The project structure is as follows The pom is […]
How to use JdbcTemplate with MySQL for database operations in a Spring Boot project
Show me my file first so it’s easier to explain. 1. Create a simple Spring Boot project. What I created myself is a project of the user public class User { private Integer id; private String name; public User(Integer id, String name) { this.id = id; this.name = name; } }2. Configure project dependencies, including […]
JdbcTemplate integrated with MySQL in Spring Boot
How to use JdbcTemplate and MySQL for database operations in Spring Boot project 1. Create a simple Spring Boot project. 2. Configure project dependencies, including Spring Boot and MySQL connection driver. Before using JbdcTemplate, you need to add the JDBC starter dependency <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> Then introduce the Mysql dependency package <dependency> <groupId>com.mysql</groupId> <artifactId>mysql-connector-j</artifactId> […]
[Development] 4. Data source, JdbcTemplate, embedded H2
Article directory 1. Data SourceDataSource 2. SpringBoot’s embedded data source object 3. Spring’s built-in persistence solution JdbcTemplate 4. SpringBoot embedded database 5. Access to embedded database H2 1. Data sourceDataSource Before understanding the concept of data source, let’s take a look at the basic steps of native JDBC: Connection conn= null; Statement statement = null; […]
spring framework-jdbcTemplate
First layer: dao -bookdao(interface) -bookdaoimpl service layer: BookService Entity class object Entry-book Test class Test-TestBook The structure is shown in the figure: xml configuration: <?xml version=”1.0″ encoding=”UTF-8″?><br><beans xmlns=”http://www.springframework.org/schema/beans”<br> xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”<br> xmlns:context=”http://www.springframework.org/schema/context”<br> xsi:schemaLocation=”http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/ context https://www.springframework.org/schema/context/spring-context.xsd”><br> <context:component-scan base-package=”com”></context:component-scan><br> <!– Database connection pool –><br><!– <bean id=”dataSource” class=”com.alibaba.druid.pool.DruidDataSource”–><br><!– destroy-method=”close”>–><br><!– <property name=”url” value=”jdbc:mysql:///user_db” />–><br><!– <property name=”username” value=”root” />–><br><!– <property […]
spring uses JdbcTemplate and jdbcDaosupport and named parameters
About jdbctemplate: Personally, I feel that it is much more convenient and easier to maintain than the one using Java to link to mysql. You only need to maintain it in the configuration file. Required packages: com.springsource.net.sf.cglib-2.2.0.jarcom.springsource.org.aopalliance-1.0.0.jarcom.springsource.org.aspectj.weaver-1.6.8.RELEASE.jarcommons-logging-1.1.3.jarmysql-connector-java-5.1.7-bin.jarspring-aop-4.0.0.RELEASE.jarspring-aspects-4.0.0.RELEASE.jarspring-beans-4.0.0.RELEASE.jarspring-context-4.0.0.RELEASE.jarspring-core-4.0.0.RELEASE.jarspring-expression-4.0.0.RELEASE.jarspring-jdbc-4.0.0.RELEASE.jarspring-orm-4.0.0.RELEASE.jarspring-tx-4.0.0.RELEASE.jarspring-web-4.0.0.RELEASE.jarspring-webmvc-4.0.0.RELEASE.jar Specific steps: Configure external resource files (db.properties) Configure mysal data source Configure jdbctemplate bean.xml <?xml version=”1.0″ encoding=”UTF-8″?> <beans […]
JDK20 + SpringBoot 3.1.0 + JdbcTemplate use
JDK20 + SpringBoot 3.1.0 + JdbcTemplate usage 1. Test database Postgres 2. SpringBoot project 1.Pom dependency 2. Configuration file 3. Startup class 4. Data source configuration class 5. Entity object class packaging class 6. Entity objects for testing 1.Base class 2.Extension class 7.Test class 3. Demonstration of tool classes encapsulated by SpringBoot Directly executing SQL […]
Java uses jdbcTemplate to query and insert millions of data solutions
Background: Use JdbcTemplate to query 5 million data and then insert it into the database. If so much data is directly queried and inserted in the ordinary way, the server will definitely hang up. I have tried using paging query to perform batch query and insertion. Although it can also achieve the effect of ensuring […]
Use of JdbcTemplate in Spring
In a recent job, for the sake of simplicity and convenience, I used Spring’s own JdbcTemplate to access the database. I thought I was very proficient in it before, but later I found out that I was too naive and stepped on many pitfalls. Basic methods JdbcTemplate comes with many methods to execute SQL statements. […]