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Compared with spring, one of the most important characteristics of spring boot is automatic configuration, which makes the Convention larger than the configuration idea successfully implemented. XXX spring boot starter a series of bootstrappers can be used out of the box, or only need a few configurations (for beginners) because the default aut ...

In the last article, we explained how the Advisor of a transaction registers with the Spring container, and how Spring configures transactions on classes that configure transactions. In fact, we used the AOP set. We also explained the Advisor, pointcut validation process. So far, the initialization of transactions has been completed. In the sub ...

Several chapters have analyzed spring's @AspectJ-based source code, so let's look at another important function of Aop, Things Management. Introduction to the transaction 1. Characteristics of Database Things AtomicityMultiple database operations are inseparable, and only when all operations are successful, can things be submitted; as long ...

Record a little of your last summer vacation study JDBC How to connect? JDBC JDBC, accessing database through java. A java API that executes sql statements. With JDBC, you can easily connect to the database. How to connect? JDBC connecting database can be divided into three steps: creating conn ...

order This paper mainly studies Sharing-jdbc's SQLExecution Hook. SQLExecutionHook incubator-shardingsphere-4.0.0-RC1/sharding-core/sharding-core-execute/src/main/java/org/apache/shardingsphere/core/execute/hook/SQLExecutionHook.java public interface SQLExecutionHook { /** * Handle when SQL execution started. * * @param ...

title: Delete foreign key constraint fails date: 2018-08-02 21:59:06 tags: database --- When I was learning hibernate at that time, I just learned one to many, many to many related operations. It happens that there is an item just in time, and the structure of the tables should be sorted out. As the saying goes, we need to use it when we learn ...

I. Problems Emerging 1. As far as I understand it, it probably means that there is no meaning that the table name can not be found. 2. Everything is OK when connecting to a local database or a local area network database (the same database) 3. Error reporting, intercepting the main part Closing non tr ...

1. This paper mainly introduces how to use logback + slf4j to log in spring boot project. logback consists of three main components: Loggers, Appenders and Layouts. slf4j: Like jdbc, it defines a set of interfaces, which is a log facade, and enables fast switching between multiple log systems (by modifying configuration files) logback: and l ...

1.mybatis multi-table query one-to-one One-to-one (one containing another instance) <!-- One-to-one Association query-resultMap --> <resultMap type="order" id="order_user_map"> <!-- id Tags are used to bind primary keys --> <id property="id" column="id"/> <!-- Use re ...

This blog is originally created by the author. It is forbidden to reprint without permission. Please respect the originality! If you have any questions, please contact QQ509961766. (1) Modification of POM files Open the pom file First add spring boot dependencies to the top text <parent> & ...