Example usage for org.apache.ibatis.session SqlSession getMapper

List of usage examples for org.apache.ibatis.session SqlSession getMapper

  1. HOME
  2. Java
  3. org.apache.ibatis
  4. org.apache.ibatis.session.*
  5. SqlSession
  6. getMapper

Introduction

In this page you can find the example usage for org.apache.ibatis.session SqlSession getMapper.

Prototype

<T> T getMapper(Class<T> type);

Source Link

Document

Retrieves a mapper.

Usage

From source file:com.github.pagehelper.test.basic.TestISelect.java

License:Open Source License

@Test
public void testGroupBy2() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    final CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {//from   w ww  .ja  va 2s .  com
        Page<Country> page = PageHelper.startPage(1, 10).setOrderBy("id desc").doSelectPage(new ISelect() {
            @Override
            public void doSelect() {
                countryMapper.selectGroupBy();
            }
        });
        //?lambda
        //Page<Country> page = PageHelper.startPage(1, 10).setOrderBy("id desc").doSelectPage(()-> countryMapper.selectGroupBy());
        //1,'Angola','AO'
        assertEquals(1, page.get(0).getId());
        assertEquals(10, page.size());
        assertEquals(183, page.getTotal());

        PageInfo<Country> pageInfo = page.toPageInfo();
        System.out.println(pageInfo);

        pageInfo = PageHelper.startPage(1, 10).setOrderBy("id desc").doSelectPageInfo(new ISelect() {
            @Override
            public void doSelect() {
                countryMapper.selectGroupBy();
            }
        });
        //lambda
        //pageInfo = PageHelper.startPage(1, 10).setOrderBy("id desc").doSelectPageInfo(() -> countryMapper.selectGroupBy());

        System.out.println(pageInfo);

        final Country country = new Country();
        country.setCountryname("c");

        long total = PageHelper.count(new ISelect() {
            @Override
            public void doSelect() {
                countryMapper.selectLike(country);
            }
        });
        //lambda
        //long total = PageHelper.count(()->countryMapper.selectLike(country));

        System.out.println(total);
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.basic.TestLike.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *//*from   w w  w  .jav  a 2  s  .c  o  m*/
@Test
public void testMapperWithStartPage() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //?110?count
        PageHelper.startPage(1, 10);
        Country country = new Country();
        country.setCountryname("c");
        List<Country> list = countryMapper.selectLike(country);
        assertEquals(30, list.get(0).getId());
        assertEquals(10, list.size());
        assertEquals(39, ((Page<?>) list).getTotal());

        //?110?count
        PageHelper.startPage(4, 10);
        list = countryMapper.selectLike(country);
        assertEquals(130, list.get(0).getId());
        assertEquals(9, list.size());
        assertEquals(39, ((Page<?>) list).getTotal());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.page.PageTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *//*from ww  w  . j  ava 2s.  c o m*/
@Test
public void testMapperWithStartPage() {
    SqlSession sqlSession = MybatisPageHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //?202?
        //??
        PageHelper.startPage(20, 2);
        List<Country> list = countryMapper.selectAll();
        PageInfo page = new PageInfo(list);
        assertEquals(1, list.size());
        assertEquals(7, page.getStartRow());
        assertEquals(4, page.getPageNum());
        assertEquals(7, page.getTotalNum());

        //?-32?
        //?7???
        PageHelper.startPage(-3, 2);
        list = countryMapper.selectAll();
        page = new PageInfo(list);
        assertEquals(2, list.size());
        assertEquals(1, page.getStartRow());
        assertEquals(1, page.getPageNum());
        assertEquals(7, page.getTotalNum());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.pagesize.PageSizeLessThenOrEqualZeroTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *///w ww  .  j  a v  a 2  s.  c o  m
@Test
public void testWithStartPage() {
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //pageSize=0,?count
        PageHelper.startPage(1, 0);
        List<Country> list = countryMapper.selectAll();
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(183, page.getTotal());

        //limit<0?
        PageHelper.startPage(1, -100);
        list = countryMapper.selectAll();
        page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(183, page.getTotal());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.pagesize.PageSizeLessThenOrEqualZeroTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *///from www .  j av  a2  s. co  m
@Test
public void testWithRowbounds() {
    //?MybatisRowBoundsHelpercount
    SqlSession sqlSession = MybatisHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //limit=0,?count,????rounbounds?count?-1
        List<Country> list = countryMapper.selectAll(new RowBounds(1, 0));
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(-1, page.getTotal());

        //limit<0?
        list = countryMapper.selectAll(new RowBounds(1, -100));
        page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(-1, page.getTotal());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.pagesize.PageSizeZeroTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *///from ww w. j a  va  2  s .  c o  m
@Test
public void testWithStartPage() {
    SqlSession sqlSession = MybatisPageSizeZeroHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //pageSize=0
        PageHelper.startPage(1, 0);
        List<Country> list = countryMapper.selectAll();
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(183, list.size());
        assertEquals(183, page.getTotal());

        //pageSize=0
        PageHelper.startPage(10, 0);
        list = countryMapper.selectAll();
        page = new PageInfo<Country>(list);
        assertEquals(183, list.size());
        assertEquals(183, page.getTotal());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.pagesize.PageSizeZeroTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *///from   w  w  w  .  jav a  2s .  co  m
@Test
public void testWithRowbounds() {
    SqlSession sqlSession = MybatisPageSizeZeroHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //pageSize=0
        List<Country> list = countryMapper.selectAll(new RowBounds(1, 0));
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(183, list.size());
        assertEquals(183, page.getTotal());

        //pageSize=0
        PageHelper.startPage(10, 0);
        list = countryMapper.selectAll(new RowBounds(1000, 0));
        page = new PageInfo<Country>(list);
        assertEquals(183, list.size());
        assertEquals(183, page.getTotal());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.reasonable.PageTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *//*from w ww.  jav  a2s.co  m*/
@Test
public void testMapperWithStartPage() {
    SqlSession sqlSession = MybatisReasonableHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //?202?
        //??
        PageHelper.startPage(20, 50);
        List<Country> list = countryMapper.selectAll();
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(33, list.size());
        assertEquals(151, page.getStartRow());
        assertEquals(4, page.getPageNum());
        assertEquals(183, page.getTotal());

        //?-32?
        //?7???
        PageHelper.startPage(-3, 50);
        list = countryMapper.selectAll();
        page = new PageInfo<Country>(list);
        assertEquals(50, list.size());
        assertEquals(1, page.getStartRow());
        assertEquals(1, page.getPageNum());
        assertEquals(183, page.getTotal());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.rowbounds.RowBoundsTest.java

License:Open Source License

/**
 * Mapper??RowBounds???xml??/*from  w  ww .  ja  v  a2  s.c o m*/
 * <p/>
 * RowBounds??count?Page?
 * <p/>
 * ??startPagestartPage
 */
@Test
public void testMapperWithRowBounds() {
    SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //?110?count
        List<Country> list = countryMapper.selectAll(new RowBounds(1, 10));
        //PageInfo?
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(10, list.size());
        assertEquals(183, page.getTotal());
        //??
        assertEquals(1, list.get(0).getId());
        assertEquals(10, list.get(list.size() - 1).getId());

        //?1010??count
        list = countryMapper.selectAll(new RowBounds(10, 10));
        assertEquals(10, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //??
        assertEquals(91, list.get(0).getId());
        assertEquals(100, list.get(list.size() - 1).getId());

        //?320?count
        list = countryMapper.selectAll(new RowBounds(6, 20));
        assertEquals(20, list.size());
        assertEquals(183, ((Page<?>) list).getTotal());
        //??
        assertEquals(101, list.get(0).getId());
        assertEquals(120, list.get(list.size() - 1).getId());
    } finally {
        sqlSession.close();
    }
}

From source file:com.github.pagehelper.test.rowbounds.RowBoundsTest.java

License:Open Source License

/**
 * Mapper?PageHelper.startPage??Mapper??
 *//*from ww  w.  j a  v a 2s.  c  om*/
@Test
public void testWithRowboundsAndCountTrue() {
    SqlSession sqlSession = MybatisRowBoundsHelper.getSqlSession();
    CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
    try {
        //limit=0,?count,????rounbounds?count?-1
        //?-1
        List<Country> list = countryMapper.selectAll(new RowBounds(1, 0));
        PageInfo<Country> page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(183, page.getTotal());

        //pageSize<0?
        list = countryMapper.selectAll(new RowBounds(1, -100));
        page = new PageInfo<Country>(list);
        assertEquals(0, list.size());
        assertEquals(183, page.getTotal());
    } finally {
        sqlSession.close();
    }
}