Programmer Group

Preface Only a bare head can make it stronger. The text has been included in my GitHub selected articles. Welcome to Star: https://github.com/ZhongFuCheng3y/3y I don't know if you have written JDBC in your work. I went to a small company as an intern in my junior year. JDBC is used in it, but it encapsulates several tool classes. When ...

Citation dependency <!--seata--> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-seata</artifactId> <exclusions> <exclusion> <artifactId>seata-all</artifactId> <groupId>io.seata</groupId> &lt ...

Recently, we are reconstructing projects ourselves. In order to meet the 82 principle (I hope 80% of businesses can be fixed by exhausting, and only 20% of businesses allow special definitions), after fixing some standard processes, for example, we have enlarged the capability of atomic services. When we enlarge the capability of atomic service ...

In the previous article, we introduced build dubbo distributed platform maven build ant parent project. The framework uses maven to build. According to our plan, we need to build all subprojects. Today, we focus on the construction process of ant config configuration file project. Introduction: The purpose of independent ant config project is ...

JDBC JDBC(Java Database connectivity) is a Java API for executing SQL statements Can provide unified access to a variety of relational databases Java database connection specification (a set of interfaces) There are four core classes of JDBC: DriverManager create connection Connection connection class S ...

1 producers Step 1: reference the relevant jar package. <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> </depende ...

1. Set the relevant database connection statements in the jdbc.properties file jdbc_url=jdbc:mysql://ip address: port / database name? Characterencoding = utf8 & zerodatetimebehavior = round jdbc_username=User name jdbc_password=User password 2. Read the modified properties file in applicationContext.xml <context:pr ...

Spring provides a powerful template class -- JDBC template to simplify JDBC operations. The data source DataSource object and the template JDBC template object can be defined in the configuration file in the form of Bean, giving full play to the power of dependency injection.   Case: use JDBC template to query all books 1. Introduce jar package ...

1. Download the jar package required by MyBatis Download links of Github versions of MyBatis: https://github.com/mybatis/mybatis-3/releases Download the JDBC driven jar package of the corresponding database 　　　　 2. Prepare the database to use create database School; use School; create table Users ( 　　id int primary key, 　　name varcha ...

SpringBootApplication annotation @Target(ElementType.TYPE) @Retention(RetentionPolicy.RUNTIME) @Documented @Inherited @SpringBootConfiguration @EnableAutoConfiguration @ComponentScan(excludeFilters = { @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class), @Filter(type = FilterType.CUSTOM, classes = AutoConfigu ...