service development to achieve

1. Analysis of page

 

2. Because taotao-common shared independent of other sub-projects, so here the new data show POJO class EasyUIDataGridResult follows:

 

3.POJO-like sequences of

 

4. Create an interface ItemService 

 

ItemService.java 

com.taotao.service Package; 

Import com.taotao.common.pojo.EasyUIDataGridResult; 

/ ** 
 * processing related merchandise-Service 
 * @title ItemService.java 
 * <P> Description </ P> 
 * @author 
 * 1.0 @version 
 * / 
public interface ItemService { 
	
	/ ** 
	 * pagination query according to the current page number and the number of lines per page 
	 * @param Page 
	 * @param rows 
	 * @return 
	 * / 
	public EasyUIDataGridResult GetItemList (Page Integer, Integer rows); 
}

　　

The new implementation class ItemServiceImpl

 

ItemServiceImpl.java

package com.taotao.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.taotao.common.pojo.EasyUIDataGridResult;
import com.taotao.mapper.TbItemMapper;
import com.taotao.pojo.TbItem;
import com.taotao.pojo.TbItemExample;
import com.taotao.service.ItemService;

@Service
public class ItemServiceImpl implements ItemService {

	@Autowired
	private TbItemMapper mapper;

	@Override
	public EasyUIDataGridResult getItemList(Integer page, Integer rows) {
		// set page 1. Information used pagehelper 
		if (page == null)
			Page =. 1; 
		IF (rows == null) 
			rows = 30; 
		PageHelper.startPage (Page, rows); 
		// 2. Mapper injection 
		// example 3. Create objects need not be provided query 
		TbItemExample Example TbItemExample new new = (); 
		// call to query all 4. the data mapper method 
		List <TbItem> List = mapper.selectByExample (Example); 
		// 5. the paging information acquired 
		PageInfo <TbItem> info = new PageInfo <> (List); 
		// 6. the encapsulated EasyUIDataGridResult 
		EasyUIDataGridResult new new EasyUIDataGridResult Result = (); 
		result.setTotal ((int) info.getTotal ()); 
		result.setRows (info.getList ()); 
		//. 7 Returning to 
		return Result; 
	} 

}

　　

6. Modify applicationContext-service.xml