首先看错误信息
@Test
public void test8() throws Exception {
InputStream resourceAsStream = Resources.getResourceAsStream("sqlMapConfig.xml");
SqlSessionFactory build = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = build.openSession();
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
PageHelper.startPage(1,3);
List<User> all = mapper.findAll();
for (User user : all) {
System.out.println(user);
}
PageInfo<User> pageInfo = new PageInfo<User>(all);
System.out.println("当前页:"+pageInfo.getPageNum());
System.out.println("每页显示条数:"+pageInfo.getPageSize());
System.out.println("总记录数:"+pageInfo.getTotal());
System.out.println("总页数:"+pageInfo.getPages());
System.out.println("上一页:"+pageInfo.getPrePage());
System.out.println("下一页:"+pageInfo.getNextPage());
System.out.println("是否是第一页:"+pageInfo.isIsFirstPage());
System.out.println("是否是最后一页:"+pageInfo.isIsLastPage());
}
使用mybatis做分页查询的时候报的错:
解决方案:将jsqlparser依赖换成高版本的就行了,使用0.9版本以下的都会报错
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.2.0</version>
</dependency>
<dependency>
<groupId>com.github.jsqlparser</groupId>
<artifactId>jsqlparser</artifactId>
<version>4.0</version>
</dependency>
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