src/com/drugsp/servlet/admin/drugmanage/DrugsSearchServlet.java

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package com.drugsp.servlet.admin.drugmanage;

import java.io.IOException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.drugsp.bean.Classify;
import com.drugsp.bean.Drugs;
import com.drugsp.bean.Shops;
import com.drugsp.service.ClassifyService;
import com.drugsp.service.DrugsService;
import com.drugsp.service.ShopsService;
import com.drugsp.service.impl.ClassifyServiceImpl;
import com.drugsp.service.impl.DrugsServiceImpl;
import com.drugsp.service.impl.ShopsServiceImpl;
/*
 * 管理员模糊查询药品
 * */
@WebServlet("/drugsearch.do")
public class DrugsSearchServlet extends HttpServlet{

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String searchu = req.getParameter("searchu");
	    DrugsService ds=new DrugsServiceImpl();
	    ShopsService ss=new ShopsServiceImpl();
		ClassifyService cs=new ClassifyServiceImpl();
	    int page=1;				//当前页数
	    String reqPage=req.getParameter("page");
	    if (reqPage!=null) {
			page=Integer.parseInt(reqPage);
		}
	    int l=5;					//每页记录数
	    int count=ds.getCountBySearch(searchu);	//获取符合条件的记录数
	    int allPage=0;
	    if (count%l==0) {		//计算总页数
			allPage=count/l;
		} else {
			allPage=count/l+1;
		}
	    if (page>allPage) {
			page=allPage;
		} else if(page<1) {
			page=0;
		}
//	    将page、allpage、商家、分类和药品写入requent作用域
	    req.setAttribute("page", page);
	    req.setAttribute("allPage", allPage);
		 List<Shops> shops=ss.findAllShops();
		 List<Classify> classify=cs.findAllClassify();