modelservlet.java

图书管理

package library;

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

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

public class ModelServlet 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"); 
        if("wangshuai".equals(request.getParameter("userName"))&&"05999330".equals(request.getParameter("password")))
               {
                 //   response.sendRedirect("modelservlet");
                  request.setAttribute("rs",bookModel.Query());
                  getServletContext().getRequestDispatcher("/Login_success.jsp").forward(request,response);
             //     <%--  <jsp:forward page="modelservlet"/> --%>
            }else{
                // <jsp:forward page="Login_failure.jsp"/>
                 getServletContext().getRequestDispatcher("/Login_failure.jsp").forward(request,response);
              }
    }
    public void doGet(HttpServletRequest request, 
                       HttpServletResponse response) throws ServletException, IOException {
        doPost(request,response);            
    }
}