updateservlet.java

图书管理

package library;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.*;
import javax.servlet.http.*;

public class UpdateServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";
    BookInfo bookInfo;
    AuthorInfo authorInfo;
    BookModel bookModel;
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        bookModel = new BookModel();
    }

    public void doPost(HttpServletRequest request, 
                       HttpServletResponse response) throws ServletException, IOException {response.setContentType(CONTENT_TYPE);
        request.setCharacterEncoding("gb2312");
        String bookNum = request.getParameter("bookNum");
        String bookName = request.getParameter("bookName");
        String authorNum = request.getParameter("authorNum");
        String press = request.getParameter("press");
        String authorName = request.getParameter("authorName");
        String address = request.getParameter("address");
        String email = request.getParameter("email");
        String tel = request.getParameter("tel");
        bookInfo = new BookInfo(bookNum,bookName,authorNum,press);
        authorInfo = new AuthorInfo(authorNum,authorName,address,email,tel);
        System.out.println(authorName);
        bookModel.IsUpdateBook(bookInfo,authorInfo);
       // request.setAttribute("crs1",bookInfo);
        //request.setAttribute("crs2",authorInfo);
        request.setAttribute("rs",bookModel.Query());
        getServletContext().getRequestDispatcher("/Login_success.jsp").forward(request,response);
    }
    public void doGet(HttpServletRequest request, 
                       HttpServletResponse response) throws ServletException, IOException{
        doPost(request,response);
    }
}