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This article shares with you the content of a sample analysis of the mybatis project configuration file. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Mybatis project configuration

First, this is a simple mybatis project configuration file:

Environment

Mybatis supports multiple environments and can be configured arbitrarily

For example:

There will be two environments. Which one is chosen by the defalut tag in environments, which is the default?

TransactionManager

Mybatis supports two types of transaction managers, jdbc and managed (managed)

Jdbc: the application manages the lifecycle of database connections

Managed: the application server is responsible for managing the lifecycle of database connections (this feature is available only on commercial servers, such as JBOSS WebLogic)

DataSource

Type: used to configure data sources. Types are: UNPOOLED, POOLED, JNDI

UNPOOLED: no connection pool. Every database operation, mybatis will create a new connection. After using it, close it: suitable for small concurrent projects.

POOLED: connection pooling

JNDI: use the application server to configure JNDI data sources to obtain database connections

Properties

Configuration Properti

For example:

TypeAliases

Alias the fully qualified name of the class for ease of use

For example:

Mappers

Introduce a mapping file

Settings

An example of the settings element fully configured is as follows:

Plugins

Plug-ins such as:

Paging plug-in

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