使用PageHelper实现SpringBoot项目中对查询结果的分页，

使用PageHelper实现SpringBoot项目中对查询结果的分页，

1. 引入依赖

compile('com.github.pagehelper:pagehelper-spring-boot-starter:1.2.10')

2. 将分页逻辑单独拎出来实现

public class PageUtility {

	public static PageSerializable<?> search(MyPage myPage, Object repository, Method method, Object... args)
			throws IllegalAccessException, IllegalArgumentException, InvocationTargetException {
		Page<?> page = PageHelper.startPage(myPage.getNumber(), myPage.getSize(), myPage.getOrderBy());
		List<?> list = (List<?>) method.invoke(repository, args);
		PageSerializable<?> result = new PageSerializable<>(list);
		result.setTotal(page.getTotal());
		return result;
	}

}

3. 实现Service

public MyResponse searchByType(String type, MyPage myPage) throws NoSuchMethodException, SecurityException,
			IllegalAccessException, IllegalArgumentException, InvocationTargetException {
		MyResponse response = new MyResponse();
		Method method = materialRepository.getClass().getMethod("searchByType", String.class);
		response.setData(PageUtility.search(myPage, materialRepository, method, type));
		response.setData(materialRepository.searchByType(type));
		return response;
	}

materialRepository.searchByType(String type) 返回类型是List<Material>

4. 实现Controller

@ApiOperation(value = "Material search by type", notes = "No information")
	@PostMapping(path = "/search-by-type")
	public MyResponse searchByType(
			@ApiParam(value = "Material type", required = true) @RequestParam("type") String type,
			@ApiParam(value = "MyPage info in json format", required = true) @RequestBody MyPage myPage)
			throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException,
			InvocationTargetException {
		return materialService.searchByType(type, myPage);
	}

That's all. Simple.