mybatisplusinterceptor分页

MyBatis Plus provides an interceptor called "PaginationInterceptor" for pagination support. This interceptor helps in automatically creating SQL statements for pagination and executing them on your behalf.

To enable pagination with MyBatis Plus, you need to follow these steps:

1. Add the MyBatis Plus dependency to your project. You can do this by adding the following Maven dependency to your `pom.xml` file:

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>{version}</version>
</dependency>

Replace `{version}` with the version of MyBatis Plus you want to use.

2. Configure the `PaginationInterceptor` bean in your Spring Boot configuration class. An example configuration might look like this:

@Configuration
public class MyBatisPlusConfig {
    
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }
}

3. Use the `@Interceptor` annotation on your mapper interface or XML mapper file. This will enable the pagination interceptor for that specific mapper. For example:

@Mapper
@Interceptor(PaginationInterceptor.class)
public interface UserMapper extends BaseMapper<User> {
    // ...
}

4. Now you can use pagination in your queries by passing a `Page` object as a parameter to your mapper methods. The `Page` object holds information about the current page number, page size, and other pagination-related details. For example:

public interface UserMapper extends BaseMapper<User> {
    
    List<User> selectUsers(Page<User> page);
}

You can then call this method and pass a `Page` object to retrieve paginated results.

That's it! With these steps, you can utilize the MyBatis Plus `PaginationInterceptor` for pagination support in your application. Remember to adjust the code according to your specific project structure and requirements.