use of com.github.pagehelper.mapper.CountryMapper in project Mybatis-PageHelper by pagehelper.
the class PageRowBoundsTest method testWithRowboundsAndCountTrue.
/**
* 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 testWithRowboundsAndCountTrue() {
SqlSession sqlSession = RowBoundsHelper.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
//这里由于没有配置,应该都是-1
PageRowBounds pageRowBounds = new PageRowBounds(0, -1);
List<Country> list = countryMapper.selectAll(pageRowBounds);
assertEquals(183, list.size());
//pageSize<0的时候同上
list = countryMapper.selectAll(new PageRowBounds(0, -100));
assertEquals(183, list.size());
} finally {
sqlSession.close();
}
}
use of com.github.pagehelper.mapper.CountryMapper 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 = RowBoundsHelper.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));
//新增PageInfo对象,对返回结果进行封装
assertEquals(10, list.size());
//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(90, 10));
assertEquals(10, list.size());
//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(100, 20));
assertEquals(20, list.size());
//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();
}
}
use of com.github.pagehelper.mapper.CountryMapper in project Mybatis-PageHelper by pagehelper.
the class ArgumentsObjTest method testArgumentsObj.
/**
* 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 testArgumentsObj() {
SqlSession sqlSession = MybatisHelper.getSqlSession();
CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
try {
CountryQueryModel queryModel = new CountryQueryModel();
queryModel.setPageNum(1);
queryModel.setPageSize(10);
queryModel.setOrderBy("id desc");
List<Country> list = countryMapper.selectByQueryModel(queryModel);
assertEquals(10, list.size());
assertEquals(183, ((Page<?>) list).getTotal());
queryModel.setPageNum(2);
queryModel.setOrderBy(null);
list = countryMapper.selectByQueryModel(queryModel);
assertEquals(10, list.size());
assertEquals(183, ((Page<?>) list).getTotal());
queryModel.setPageNum(3);
queryModel.setPageSize(20);
list = countryMapper.selectByQueryModel(queryModel);
assertEquals(20, list.size());
assertEquals(183, ((Page<?>) list).getTotal());
} finally {
sqlSession.close();
}
}
use of com.github.pagehelper.mapper.CountryMapper in project Mybatis-PageHelper by pagehelper.
the class PageSizeLessThenOrEqualZeroTest method testWithStartPage.
/**
* 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 testWithStartPage() {
SqlSession sqlSession = MybatisHelper.getSqlSession();
CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
try {
//pageSize=0,这时候相当于用分页插件求count
PageHelper.startPage(1, 0);
List<Country> list = countryMapper.selectAll();
PageInfo<Country> page = new PageInfo<Country>(list);
assertEquals(183, list.size());
assertEquals(183, page.getTotal());
//limit<0的时候同上
PageHelper.startPage(1, -100);
list = countryMapper.selectAll();
page = new PageInfo<Country>(list);
assertEquals(0, list.size());
assertEquals(183, page.getTotal());
} finally {
sqlSession.close();
}
}
use of com.github.pagehelper.mapper.CountryMapper 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();
}
}
Aggregations