Examples with RowBounds org.apache.ibatis.session.RowBounds used on opensource projects

Example 31 with RowBounds

use of org.apache.ibatis.session.RowBounds in project Mybatis-PageHelper by pagehelper.

the class PageSizeLessThenOrEqualZeroTest method testWithRowbounds.

/**
     * 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 testWithRowbounds() {
    //注意这里是MybatisRowBoundsHelper，会求count
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //limit=0,这时候相当于用分页插件求count,但是前提必须是配置rounbounds方式求count，否则都是-1
        List<Country> list = countryMapper.selectAll(new RowBounds(1, -1));
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(183, page.getTotal());
        //limit<0的时候同上
        list = countryMapper.selectAll(new RowBounds(1, -100));
        page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(183, page.getTotal());
    } finally {
        sqlSession.close();
    }
}

Example 32 with RowBounds

use of org.apache.ibatis.session.RowBounds in project Mybatis-PageHelper by pagehelper.

the class RowBoundsTest method testMapperWithRowBounds.

/**
     * 使用Mapper接口调用时，对接口增加RowBounds参数，不需要修改对应的xml配置（或注解配置）
     * <p/>
     * RowBounds方式不进行count查询，可以通过修改Page代码实现
     * <p/>
     * 这种情况下如果同时使用startPage方法，以startPage为准
     */
@Test
public void testMapperWithRowBounds() {
    SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //获取第1页，10条内容，默认查询总数count
        List<Country> list = countryMapper.selectAll(new RowBounds(1, 10));
        //新增PageInfo对象，对返回结果进行封装
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(10, list.size());
        assertEquals(183, page.getTotal());
        //判断查询结果的位置是否正确
        assertEquals(1, list.get(0).getId());
        assertEquals(10, list.get(list.size() - 1).getId());
        //获取第10页，10条内容，显式查询总数count
        list = countryMapper.selectAll(new RowBounds(10, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(91, list.get(0).getId());
        assertEquals(100, list.get(list.size() - 1).getId());
        //获取第3页，20条内容，默认查询总数count
        list = countryMapper.selectAll(new RowBounds(6, 20));
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(101, list.get(0).getId());
        assertEquals(120, list.get(list.size() - 1).getId());
    } finally {
        sqlSession.close();
    }
}

Example 33 with RowBounds

use of org.apache.ibatis.session.RowBounds in project Mybatis-PageHelper by pagehelper.

the class RowBoundsTest method testNamespaceWithRowBounds2.

@Test
public void testNamespaceWithRowBounds2() {
    SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession();
    try {
        //获取从0开始，10条内容
        List<Country> list = sqlSession.selectList("selectIf", null, new RowBounds(1, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(1, list.get(0).getId());
        assertEquals(10, list.get(list.size() - 1).getId());
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("id", 10);
        //获取从10开始，10条内容
        list = sqlSession.selectList("selectIf", map, new RowBounds(10, 10));
        assertEquals(10, list.size());
        assertEquals(173, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(101, list.get(0).getId());
        assertEquals(110, list.get(list.size() - 1).getId());
    } finally {
        sqlSession.close();
    }
}

Example 34 with RowBounds

use of org.apache.ibatis.session.RowBounds in project Mybatis-PageHelper by pagehelper.

the class PageHelperTest method testMapperWithRowBounds.

/**
     * 使用Mapper接口调用时，对接口增加RowBounds参数，不需要修改对应的xml配置（或注解配置）
     * <p/>
     * RowBounds方式不进行count查询，可以通过修改Page代码实现
     * <p/>
     * 这种情况下如果同时使用startPage方法，以startPage为准
     */
@Test
public void testMapperWithRowBounds() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //获取第1页，10条内容，默认查询总数count
        List<Country> list = countryMapper.selectAll(new RowBounds(0, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(1, list.get(0).getId());
        assertEquals(10, list.get(list.size() - 1).getId());
        //获取第2页，10条内容，显式查询总数count
        list = countryMapper.selectAll(new RowBounds(10, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(11, list.get(0).getId());
        assertEquals(20, list.get(list.size() - 1).getId());
        //获取第3页，20条内容，默认查询总数count
        list = countryMapper.selectAll(new RowBounds(60, 20));
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(61, list.get(0).getId());
        assertEquals(80, list.get(list.size() - 1).getId());
        //同时使用startPage和RowBounds时，以startPage为准
        PageHelper.startPage(1, 20);
        list = countryMapper.selectAll(new RowBounds(60, 20));
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(1, list.get(0).getId());
        assertEquals(20, list.get(list.size() - 1).getId());
    } finally {
        sqlSession.close();
    }
}

Example 35 with RowBounds

use of org.apache.ibatis.session.RowBounds in project Mybatis-PageHelper by pagehelper.

the class PageHelperTest method testNamespaceWithRowBounds.

/**
     * 使用命名空间方式的RowBounds进行分页，使用RowBounds时不进行count查询
     * 通过修改代码可以进行count查询，没法通过其他方法改变参数
     * 因为如果通过调用一个别的方法来标记count查询，还不如直接startPage
     * <p/>
     * 同时使用startPage时，以startPage为准，会根据startPage参数来查询
     */
@Test
public void testNamespaceWithRowBounds() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    try {
        //获取从0开始，10条内容
        List<Country> list = sqlSession.selectList("selectAll", null, new RowBounds(0, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(1, list.get(0).getId());
        assertEquals(10, list.get(list.size() - 1).getId());
        //获取从10开始，10条内容
        list = sqlSession.selectList("selectAll", null, new RowBounds(10, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(11, list.get(0).getId());
        assertEquals(20, list.get(list.size() - 1).getId());
        //获取从20开始，20条内容
        list = sqlSession.selectList("selectAll", null, new RowBounds(20, 20));
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(21, list.get(0).getId());
        assertEquals(40, list.get(list.size() - 1).getId());
        //同时使用startPage和RowBounds时，以startPage为准
        PageHelper.startPage(1, 20);
        list = sqlSession.selectList("selectAll", null, new RowBounds(0, 10));
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //判断查询结果的位置是否正确
        assertEquals(1, list.get(0).getId());
        assertEquals(20, list.get(list.size() - 1).getId());
    } finally {
        sqlSession.close();
    }
}