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General Mapper notes Build development environment (spring boot) Database tableImport dependency <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper</artifactId> <version>4.0.4</version> </dependency> To configure server: port: ...

Summary of this section This section mainly realizes the final function of the software and some summary of the project.   About the function of software The function of the software is to pop up a dialog box, tell the user some information about the software, and use the JDialog of swing to comp ...

preparation: Import the required jar package, import it into the lib package under the web directory and WEB-INF directory, and add it into the module The following picture:Configuration database file druid.properties driverClassName=com.mysql.cj.jdbc.Driver url=jdbc:mysql:///Day14 you can create your o ...

The database can be operated easily by Java using JDBC API. In java8 and later, JDBC ODBC bridge connections have been dropped. For different databases, download the driver to the corresponding official website. Here are three common database driver names, driver class and corresponding connection strin ...

From the pool technology to the bottom layer implementation, an article takes you through the thread pool technology. 1. Introduction to pool technology In the process of system development, we often use pooling technology to reduce system consumption and improve system performance. In the field of prog ...

Simple enough To be honest, to implement transaction management and add an annotation to a method, the method automatically implements transactions, which is simple enough. I can't think of anything simpler. This annotation is @ Transactional, which is so excellent. Declarative transaction management ...

Article Directory MyBatis Interface Binding Scheme and Multi-parameter Passing map mode for multiparameter transfer Interface Binding Interface for multiparameter delivery MyBatis Interface Binding Scheme and Multi-parameter Passing In addition and deletion checks of MyBatis, it is found that ...

1, concept Spring Batch is a lightweight batch processing framework suitable for enterprise applications. It is worth noting that unlike other scheduling frameworks, Spring Batch does not provide scheduling functions. 2. Batch process Batch processing can be divided into the following steps: Read data Process data according to business The pr ...

Database transactions A series of database operations with ACID characteristics realized by database, a refers to atomicity, C refers to consistency, I refers to isolation, and D refers to persistence; Atomicity refers to that the operation within a transaction is a whole and cannot be subdivided; ...

background The programmatic transaction management based on PlatformTransactionManater implemented in the previous article belongs to a very low-level encapsulation. In fact, the original JDBC transaction operation is encapsulated as an interface and then implemented by a specific implementation class ...