springboot整合mybatis和分页插件pagehelper

最近使用mybatis比较少，也没有用过springboot整合过mybatis及其分页插件，在这个过程中出现了好多问题，开贴记录一下，希望大家能够避免入坑。

proterrties的配置，我这里没有贴出数据的配置
#mybatis
mybatis.mapper-locations=classpath:com.wyb.mybaties.mybaties.mapper/*.xml
#mybatis.type-aliases-package=com.wyb.mybaties.mybaties.pojo

#分页插件的配置
pagehelper.helper-dialect=mysql
pagehelper.params=count=countSql
pagehelper.reasonable=true
pagehelper.support-methods-arguments=true

分页插件在启动类的配置
package com.wyb.mybaties.mybaties;

import com.github.pagehelper.PageHelper;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

import java.util.Properties;

@SpringBootApplication
@ComponentScan(basePackages = {“com”})
@MapperScan(“com.wyb.mybaties.mybaties.mapper”)
public class MybatiesApplication {

public static void main(String[] args) {
	SpringApplication.run(MybatiesApplication.class, args);
}
/*
 * 注册MyBatis分页插件PageHelper
 */
@Configuration
public class MybatisConf {
	@Bean
	public PageHelper pageHelper() {
		System.out.println("MyBatisConfiguration.pageHelper()");
		PageHelper pageHelper = new PageHelper();
		Properties p = new Properties();
		p.setProperty("offsetAsPageNum", "true");
		p.setProperty("rowBoundsWithCount", "true");
		p.setProperty("reasonable", "true");
		pageHelper.setProperties(p);
		return pageHelper;
	}
}

}

贴出springboot的版本和pagehelper版本 这个版本也要匹配不然会抱错

java.util.ArrayList cannot be cast to com.github.pagehelper.Page