SpringBoot整合PageHelper分页无效的常见原因分析

<!-- spring-boot mybatis pagehelper -->
<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>1.2.10</version>
</dependency>

<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>
    <version>5.1.10</version>
</dependency>

	public PageInfo<R> page(Map<String, ? extends Object> map) {
		//获取第1页，10条内容，默认查询总数count
	    PageHelper.startPage(Integer.parseInt(map.get("pageNum").toString()), Integer.parseInt(map.get("pageSize").toString()));
	    String sql = String.format("%s%s",sqlMapping , map.get("mapping")==null?"getPageObjList" : map.get("mapping")) ;
		List<R> l = sqlSessionTemplate.selectList(sql , map);
		return new PageInfo<R>(l);
	}

	@Bean
	public Interceptor[] plugins() {
		return new Interceptor[]{new PageInterceptor()};
	}

<configuration> 
	<plugins>
		<plugin interceptor="com.github.pagehelper.PageInterceptor"/>
	</plugins>
</configuration>