src/com/service/SalesService.java

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package com.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Date;
import java.util.Objects;
import com.dao.SalesDao;
import com.entity.Junk;
import com.entity.Sales;
@Service
public class   SalesService {
 	@Autowired
	private SalesDao salesDao;

	public boolean add(Sales sales)
	{
		return salesDao.insert(sales) > 0;
	}
	public boolean edit(Sales sales)
	{
		return salesDao.updateByPrimaryKeySelective(sales) > 0;
	}
	public List<Sales> getList(String where,int page, int size) 
	{
		return salesDao.getList(where,size*(page-1), size);
	}
	
	public boolean delete(int id) 
	{
		return salesDao.deleteByPrimaryKey(id) > 0;
	}
	
	public int getTotal(String where)
	{
 		return salesDao.getTotal(where);
	}
}