Examples with UserMapper com.github.pagehelper.mapper.UserMapper used on opensource projects

Example 16 with UserMapper

use of com.github.pagehelper.mapper.UserMapper in project Mybatis-PageHelper by pagehelper.

the class OffsetTest method testOffset.

@Test
public void testOffset() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
    try {
        PageHelper.startPage(1, 6);
        List<User> list = userMapper.selectAll();
        assertEquals(6, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        PageHelper.offsetPage(6, 20);
        list = userMapper.selectAll();
        PageInfo<User> pageInfo = new PageInfo<User>(list);
        System.out.println(pageInfo.toString());
        assertEquals(2, ((Page<?>) list).getPageNum());
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        PageHelper.offsetPage(1, 180);
        list = userMapper.selectAll();
        pageInfo = new PageInfo<User>(list);
        System.out.println(pageInfo.toString());
        assertEquals(2, ((Page<?>) list).getPageNum());
        assertEquals(180, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        PageHelper.offsetPage(0, Integer.MAX_VALUE);
        list = userMapper.selectAll();
        pageInfo = new PageInfo<User>(list);
        System.out.println(pageInfo.toString());
        assertEquals(1, ((Page<?>) list).getPageNum());
        assertEquals(183, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
    } finally {
        sqlSession.close();
    }
}

Example 17 with UserMapper

use of com.github.pagehelper.mapper.UserMapper in project Mybatis-PageHelper by pagehelper.

the class PageInfoTest method testPageSize10.

/**
 * 使用Mapper接口调用时，使用PageHelper.startPage效果更好，不需要添加Mapper接口参数
 */
@Test
public void testPageSize10() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
    try {
        // 获取第1页，10条内容，默认查询总数count
        PageHelper.startPage(1, 10);
        List<User> list = userMapper.selectAll();
        System.out.println(list);
        PageInfo<User> page = new PageInfo<User>(list);
        assertEquals(1, page.getPageNum());
        assertEquals(10, page.getPageSize());
        assertEquals(1, page.getStartRow());
        assertEquals(10, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(19, page.getPages());
        assertEquals(true, page.isIsFirstPage());
        assertEquals(false, page.isIsLastPage());
        assertEquals(false, page.isHasPreviousPage());
        assertEquals(true, page.isHasNextPage());
        PageSerializable<User> serializable = PageSerializable.of(list);
        assertEquals(183, serializable.getTotal());
        // 获取第2页，10条内容，默认查询总数count
        PageHelper.startPage(2, 10);
        list = userMapper.selectAll();
        page = new PageInfo<User>(list);
        assertEquals(2, page.getPageNum());
        assertEquals(10, page.getPageSize());
        assertEquals(11, page.getStartRow());
        assertEquals(20, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(19, page.getPages());
        assertEquals(false, page.isIsFirstPage());
        assertEquals(false, page.isIsLastPage());
        assertEquals(true, page.isHasPreviousPage());
        assertEquals(true, page.isHasNextPage());
        // 获取第19页，10条内容，默认查询总数count
        PageHelper.startPage(19, 10);
        list = userMapper.selectAll();
        page = new PageInfo<User>(list);
        assertEquals(19, page.getPageNum());
        assertEquals(10, page.getPageSize());
        assertEquals(181, page.getStartRow());
        assertEquals(183, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(19, page.getPages());
        assertEquals(false, page.isIsFirstPage());
        assertEquals(true, page.isIsLastPage());
        assertEquals(true, page.isHasPreviousPage());
        assertEquals(false, page.isHasNextPage());
    } finally {
        sqlSession.close();
    }
}

Example 18 with UserMapper

use of com.github.pagehelper.mapper.UserMapper in project Mybatis-PageHelper by pagehelper.

the class PageInfoTest method testPageSize50.

/**
 * 使用Mapper接口调用时，使用PageHelper.startPage效果更好，不需要添加Mapper接口参数
 */
@Test
public void testPageSize50() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
    try {
        // 获取第1页，50条内容，默认查询总数count
        PageHelper.startPage(1, 50);
        List<User> list = userMapper.selectAll();
        PageInfo<User> page = new PageInfo<User>(list);
        assertEquals(1, page.getPageNum());
        assertEquals(50, page.getPageSize());
        assertEquals(1, page.getStartRow());
        assertEquals(50, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(4, page.getPages());
        assertEquals(true, page.isIsFirstPage());
        assertEquals(false, page.isIsLastPage());
        assertEquals(false, page.isHasPreviousPage());
        assertEquals(true, page.isHasNextPage());
        // 获取第2页，50条内容，默认查询总数count
        PageHelper.startPage(2, 50);
        list = userMapper.selectAll();
        page = new PageInfo<User>(list);
        assertEquals(2, page.getPageNum());
        assertEquals(50, page.getPageSize());
        assertEquals(51, page.getStartRow());
        assertEquals(100, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(4, page.getPages());
        assertEquals(false, page.isIsFirstPage());
        assertEquals(false, page.isIsLastPage());
        assertEquals(true, page.isHasPreviousPage());
        assertEquals(true, page.isHasNextPage());
        // 获取第3页，50条内容，默认查询总数count
        PageHelper.startPage(3, 50);
        list = userMapper.selectAll();
        page = new PageInfo<User>(list);
        assertEquals(3, page.getPageNum());
        assertEquals(50, page.getPageSize());
        assertEquals(101, page.getStartRow());
        assertEquals(150, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(4, page.getPages());
        assertEquals(false, page.isIsFirstPage());
        assertEquals(false, page.isIsLastPage());
        assertEquals(true, page.isHasPreviousPage());
        assertEquals(true, page.isHasNextPage());
        // 获取第4页，50条内容，默认查询总数count
        PageHelper.startPage(4, 50);
        list = userMapper.selectAll();
        page = new PageInfo<User>(list);
        assertEquals(4, page.getPageNum());
        assertEquals(50, page.getPageSize());
        assertEquals(151, page.getStartRow());
        assertEquals(183, page.getEndRow());
        assertEquals(183, page.getTotal());
        assertEquals(4, page.getPages());
        assertEquals(false, page.isIsFirstPage());
        assertEquals(true, page.isIsLastPage());
        assertEquals(true, page.isHasPreviousPage());
        assertEquals(false, page.isHasNextPage());
    } finally {
        sqlSession.close();
    }
}

Example 19 with UserMapper

use of com.github.pagehelper.mapper.UserMapper in project Mybatis-PageHelper by pagehelper.

the class TestISelect method testGroupBy2.

@Test
public void testGroupBy2() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    final UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
    try {
        Page<User> page = PageHelper.startPage(1, 10).doSelectPage(new ISelect() {

            @Override
            public void doSelect() {
                userMapper.selectGroupBy();
            }
        });
        // 下面是该方法的lambda用法
        // Page<User> page = PageHelper.startPage(1, 10).setOrderBy("id desc").doSelectPage(()-> userMapper.selectGroupBy());
        // 1,'Angola','AO'
        assertEquals(1, page.get(0).getId());
        assertEquals(10, page.size());
        assertEquals(183, page.getTotal());
        PageInfo<User> pageInfo = page.toPageInfo();
        System.out.println(pageInfo);
        pageInfo = PageHelper.startPage(1, 10).doSelectPageInfo(new ISelect() {

            @Override
            public void doSelect() {
                userMapper.selectGroupBy();
            }
        });
        // lambda
        // pageInfo = PageHelper.startPage(1, 10).setOrderBy("id desc").doSelectPageInfo(() -> userMapper.selectGroupBy());
        System.out.println(pageInfo);
        final User user = new User();
        user.setName("c");
        long total = PageHelper.count(new ISelect() {

            @Override
            public void doSelect() {
                userMapper.selectLike(user);
            }
        });
        // lambda
        // long total = PageHelper.count(()->userMapper.selectLike(user));
        System.out.println(total);
    } finally {
        sqlSession.close();
    }
}

Example 20 with UserMapper

use of com.github.pagehelper.mapper.UserMapper in project Mybatis-PageHelper by pagehelper.

the class TestAnnotations method testMapperWithStartPage_OrderBy.

/**
 * 使用Mapper接口调用时，使用PageHelper.startPage效果更好，不需要添加Mapper接口参数
 */
@Test
public void testMapperWithStartPage_OrderBy() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
    try {
        // 获取第1页，10条内容，默认查询总数count
        PageHelper.startPage(1, 10, "id desc");
        List<User> list = userMapper.selectByOrder2("id");
        assertEquals(183, list.get(0).getId());
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        // 获取第1页，10条内容，默认查询总数count
        PageHelper.startPage(1, 10, "id desc");
        list = userMapper.selectByOrder("name");
        assertEquals(183, list.get(0).getId());
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
    } finally {
        sqlSession.close();
    }
}