admin_servlet.java

FAQ管理全源代码

package faq_project;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class Admin_Servlet
    extends HttpServlet {
  private static final String CONTENT_TYPE = "text/html; charset=GBK";
  Iterator rs;

  //Initialize global variables
  public void init() throws ServletException {
  }

  //Process the HTTP Get request
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    response.setContentType(CONTENT_TYPE);
    request.setCharacterEncoding("GBK");
    System.out.println("Admin_Servlet is start");
    HttpSession session = request.getSession(true);
    FAQ_Bean bean = (FAQ_Bean) session.getAttribute("bean");
    /*if (request.getParameter("control").equals("deleteDate")) {
      try {
        bean.DeleteOfDate(request.getParameter("date1"),
                          request.getParameter("date2"));
      }
      catch (Exception e) {}
      response.sendRedirect(response.encodeRedirectURL("delete_page.jsp"));
    }
    if (request.getParameter("control").equals("QType")) {
      try {
        bean.fulshTitle(request.getParameter("text"));
      }
      catch (Exception e) {}
      response.sendRedirect(response.encodeRedirectURL("delete_page.jsp"));
    }*/
    if (request.getParameter("control").equals("删除")) {
      try {
        int i = 0;
        Enumeration strr = request.getParameterNames();
        while (strr.hasMoreElements()) {
          String name = strr.nextElement().toString();
          if (!name.equals("control")) {
            String index = request.getParameter(name);
            bean.DeleteOfID(Integer.parseInt(index));
          }
          i++;
        }
      }
      catch (Exception e) {}
      response.sendRedirect(response.encodeRedirectURL("delete_page.jsp"));
    }

    String type = request.getParameter("control");
    if (type.equals("edit")) {
      try {
        int i = Integer.parseInt(request.getParameter("id"));
        bean.fulshId(i);
        bean.next();
        rs = bean.getLists().iterator();
        session.setAttribute("editoradd", "edit");
        session.setAttribute("id", rs.next().toString());
        session.setAttribute("question", rs.next().toString());
        session.setAttribute("answer", rs.next().toString());
        session.setAttribute("modify", rs.next().toString());
        session.setAttribute("type", rs.next().toString());
        response.sendRedirect("edit_page.jsp");
      }
      catch (Exception e) {}
    }
    System.out.println(type);
    if (type.equals("Save")) {
      System.out.println("Save is start");
      try {
        String id = request.getParameter("id");
        bean.setAnswer(request.getParameter("answer"), id);
        System.out.println("update ansower");
        bean.setQuestion(request.getParameter("question"), id);
        System.out.println("update question");
        bean.setModified(id);
        System.out.println("update setModified");
        bean.setType(request.getParameter("Stype"), id);
        System.out.println("update type");
        response.sendRedirect("delete_page.jsp");
      }
      catch (Exception e) {}
    }
    if(type.equals("AddType")){
      session.setAttribute("editoradd","add");
      response.sendRedirect("edit_page.jsp");
    }
    if (type.equals("Add")) {
      System.out.println("Add is start");
      try {
        System.out.println(request.getParameter("question"));
        bean.setQuestion(request.getParameter("question"));
        System.out.println("1");
        bean.setAnswer(request.getParameter("answer"));
        System.out.println("2");
        bean.setType(request.getParameter("Stype"));
        System.out.println("3");
        bean.commit();
        System.out.println("Add OK");
        response.sendRedirect("delete_page.jsp");
      }
      catch (Exception e) {}
    }

  }

  //Process the HTTP Post request
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    doGet(request, response);
  }

  //Clean up resources
  public void destroy() {
  }
}