tomodbooksuccess.java

这个网上商城系统项目是我之前发过类似的一个大的整合

package adminservlet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;

import javabean.Book;

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

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;


import dao.RegisterDAO;

public class ToModBookSuccess extends HttpServlet {

	public ToModBookSuccess() {
		super();
	}

	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}
//修改商品基本信息
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html;charset=gbk");
		request.setCharacterEncoding("gbk");
		PrintWriter out = response.getWriter();
		String path = request.getRealPath("/");
		System.out.println(path);
		//临时文件
		File file = new File(path + "temp");
    	DiskFileItemFactory factory = new DiskFileItemFactory(1024*1024,file);
    	ServletFileUpload servletFileUpload = new ServletFileUpload(factory);
    	try {
			List<FileItem> list = servletFileUpload.parseRequest(request);
			Hashtable<String,String> hashTable = new Hashtable<String, String>();
			for (FileItem fileItem : list) {
				if(fileItem.isFormField()) {	//一般的文本 type="text" 
					String name = fileItem.getFieldName();
					String value = fileItem.getString("GBK");
					hashTable.put(name, value);
					request.setAttribute(name, value);
				} else {	//文件 type="file"
					String name = fileItem.getFieldName();
					String value = fileItem.getName();		//文件的名字
					int startIndex = value.lastIndexOf("\\");
					String fileName = value.substring(startIndex + 1);
					request.setAttribute(name, fileName);
					hashTable.put(name, fileName);
					fileItem.write(new File(path + "up",fileName));	//可以代替下面的代码
					
				}
			}
			
			RegisterDAO dao = new RegisterDAO();
			
			int id = Integer.parseInt(hashTable.get("id"));
			String name = hashTable.get("name");
			float price = Float.parseFloat(hashTable.get("price"));
			float saleprice = Float.parseFloat(hashTable.get("saleprice"));
			String descript = hashTable.get("descript"); 
			String contents = hashTable.get("contents"); 
			String fileName = hashTable.get("fileName");
			String leavetime = hashTable.get("leavetime"); 
			int storage = Integer.parseInt(hashTable.get("storage"));
			String provider = hashTable.get("provider"); 
			String marque = hashTable.get("marque"); 
			String unit = hashTable.get("unit");
			
			String sql = "update book set name='"+name+"',price='"+price+"',saleprice='"+saleprice+"',descript='"+descript+"',contents='"+contents+"',fileName='"+"up/"+fileName+"',leavetime='"+leavetime+"',storage='"+storage+"',provider='"+provider+"',marque='"+marque+"',unit='"+unit+"' where id=" + id;
			
		  	int n = dao.del(sql);
			if(n > 0){
				out.print("<script type='text/javascript'>alert('修改商品信息成功！')</script>");
			}
			String sql1 = "select * from book";
			ArrayList<Book> arrayList = dao.ListAllBookInformation(sql1);
			//HttpSession session = request.getSession();
			request.setAttribute("arrayList", arrayList);
			request.getRequestDispatcher("/Admin/adminMerSpe.jsp").include(request, response);
			
		} catch (FileUploadException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    	
    	
    	
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		this.doGet(request, response);
	}

	public void init() throws ServletException {
		// Put your code here
	}

}