mybatisplus Interceptor

MyBatis Plus provides an interceptor feature that allows you to intercept SQL execution and add custom logic before or after the execution. Interceptors are used to modify or enhance the behavior of MyBatis Plus.

To use an interceptor in MyBatis Plus, you need to create a class that implements the `Interceptor` interface provided by MyBatis. This interface has three methods that you can override:

1. `intercept`: This method is called for each SQL execution. You can modify the SQL statement or perform additional operations before or after execution.
2. `plugin`: This method is used to create a proxy object for the target object. You can use it to intercept method calls on the target object.
3. `setProperties`: This method is used to set properties for the interceptor. These properties can be configured in the MyBatis configuration file.

Here is an example of how to create and configure an interceptor in MyBatis Plus:

public class CustomInterceptor implements Interceptor {
    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        // Custom logic before SQL execution

        // Invoke the original method
        Object result = invocation.proceed();

        // Custom logic after SQL execution

        return result;
    }

    @Override
    public Object plugin(Object target) {
        return Plugin.wrap(target, this);
    }

    @Override
    public void setProperties(Properties properties) {
        // Set interceptor properties
    }
}

To register the interceptor in MyBatis Plus, you can add it to the configuration file:

<configuration>
    <plugins>
        <plugin interceptor="com.example.CustomInterceptor">
            <!-- Interceptor properties -->
        </plugin>
    </plugins>
</configuration>

By adding the interceptor to the configuration file, it will be applied to all SQL executions performed by MyBatis Plus.