src/com/action/xiaoshouAction.java

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package com.action;

import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.dao.TGoodsDAO;
import com.dao.TRukuDAO;
import com.dao.TXiaoshouDAO;
import com.model.TRuku;
import com.model.TXiaoshou;
import com.opensymphony.xwork2.ActionSupport;

public class xiaoshouAction extends ActionSupport
{
	

	private TGoodsDAO goodsDAO;
	private TXiaoshouDAO xiaoshouDAO;
	private TRukuDAO rukuDAO;
	
	private String message;
	private String path;
	
	public String xiaoshouAdd()
	{
		HttpServletRequest req=ServletActionContext.getRequest();
		
		int goods_id=Integer.parseInt(req.getParameter("goods_id"));
		int xiaoshoushu=Integer.parseInt(req.getParameter("xiaoshoushu"));
		double danjia=Float.parseFloat(req.getParameter("danjia"));
		double zongjia=danjia * xiaoshoushu;
		
		String xiaoshoushi=req.getParameter("xiaoshoushi");
		String beizhu=req.getParameter("beizhu");
		
		int rukuShu=get_rukuShu(goods_id);
		if(xiaoshoushu>rukuShu)
		{
			req.setAttribute("msg", "库存不足");
			return "msg";
		}
		
		else
		{
			TXiaoshou xiaoshou=new TXiaoshou();

	        xiaoshou.setGoods_id(goods_id);
	        xiaoshou.setXiaoshoushu(xiaoshoushu);
	        xiaoshou.setDanjia(danjia);
	        xiaoshou.setZongjia(zongjia);
	        
	        xiaoshou.setXiaoshoushi(xiaoshoushi);
	        xiaoshou.setBeizhu(beizhu);
			
			xiaoshouDAO.save(xiaoshou);