后台servlet ClassUpdateSer

package cn.service.servlet;

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

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

import cn.entity.ProductsBrand;
import cn.entity.ProductsClassify;
import cn.service.dao.ProductsBrandDao;
import cn.service.dao.ProductsClassifyDao;
import cn.service.dao.impl.ProductsBrandDaoImpl;
import cn.service.dao.impl.ProductsClassifyDaoImpl;

public class ClassUpdateSer extends HttpServlet {
	public ClassUpdateSer() {
		super();
	}
	public void destroy() {
		super.destroy(); 
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//接收时设置的编码  
		request.setCharacterEncoding("utf-8");  
		//转发时设置的编码  
		response.setCharacterEncoding("utf-8");  
		//以 超文本格式 方式转发  
		response.setContentType("text/html");  
		//获取了一个输出流  
		PrintWriter out = response.getWriter();

		//修改类型和品牌
		ProductsBrandDao productsBrandDao = new ProductsBrandDaoImpl();
		ProductsClassifyDao productsClassifyDao = new ProductsClassifyDaoImpl();
		List<ProductsClassify> pcList = productsClassifyDao.productsClassifyList();
		List<ProductsBrand> pbList = productsBrandDao.productsBrandList();
		
		request.setAttribute("pcList",pcList);
		request.setAttribute("pbList",pbList);

		request.getRequestDispatcher("admin/classUpdate.jsp").forward(request, response);

		out.flush();
		out.close();
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {	
		doGet(request, response);
	}
	public void init() throws ServletException {
	}
}