MyBatis-Plus - 分页查询 selectPage 返回 total 为 0 解决方案

1、添加如下配置文件

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration; 
import com.baomidou.mybatisplus.plugins.PaginationInterceptor;
 
@Configuration
public class MybatisPlusConfig {
	/**
     *   mybatis-plus分页插件
     */
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor page = new PaginationInterceptor();
        page.setDialectType("mysql");
        return page;
    }
}

2、去掉 pom.xml 中的 pagehelper 插件

<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>1.2.3</version>
</dependency>