Drug administration system/src/com/hqyj/controller/SaledrugController.java

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package com.hqyj.controller;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.hqyj.bean.Saledrug;
import com.hqyj.bean.Warehouse;
import com.hqyj.dao.WarehouseDao;
import com.hqyj.service.SaledrugService;
import com.hqyj.service.WarehouseService;

@Controller
@RequestMapping("/user")
public class SaledrugController {
	@Autowired
	private SaledrugService saledrugService;
	@Autowired
	private WarehouseService warehouseService;

	@RequestMapping("/querysaledrugAll")
	public String querysaledrugAll(HttpServletRequest request) {
		List<Warehouse> list = saledrugService.querysaledrugAll();
		request.setAttribute("saledrugList", list);
		return "saledrugList";
	}

	@RequestMapping("/presaledrugadd")
	public String presaledrugadd() {
		return "saledrugadd";
	}

	@RequestMapping("/saledrugadd")
	public String saledrugadd(Saledrug Saledrug, Warehouse warehouse,
			HttpServletRequest request) {
		warehouse.setDrug_id(Saledrug.getDrug_id());
		if (warehouseService.queryWarehouseBydrug_id(warehouse) == null) {
			request.setAttribute("errorMessage", "库存不足");
			return "saledrugadd";
		} else {
			if (warehouseService.queryWarehouseBydrug_id(warehouse)
					.getStock_number() > Saledrug.getSale_number()) {
				saledrugService.saledrugadd(Saledrug);
				warehouse.setStock_number(warehouseService
						.queryWarehouseBydrug_id(warehouse).getStock_number()
						- Saledrug.getSale_number());
				warehouseService.updateWarehouseBydrug_id(warehouse);
				return "redirect:/user/querysaledrugAll.do";
			} else {
				request.setAttribute("errorMessage", "库存不足");
				return "saledrugadd";
			}
		}

	}