index_jsp.java

JSP网上书店系统 采用ACCESS数据库

package org.apache.jsp.pages;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import function.*;
import function.*;

public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent {



static final String sFileName = "Login.jsp";
Common func = new Common();
              



  String LoginAction(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.http.HttpSession session, javax.servlet.jsp.JspWriter out, String sAction, String sForm, java.sql.Connection conn, java.sql.Statement stat) throws java.io.IOException {
    String sLoginErr = "";
		try {
			final int iloginAction = 1;
			final int ilogoutAction = 2;
			String transitParams = "";
			String sQueryString = "";
			String sPage = "";
			String sSQL = "";
			int iAction = 0;

			if (sAction.equals("login"))
				iAction = iloginAction;
			if (sAction.equals("logout"))
				iAction = ilogoutAction;

			switch (iAction) {
			case iloginAction: {
				// Login action

				String sLogin = func.getParam(request, "Login");
				String sPassword = func.getParam(request, "Password");
				System.out.println("login:" + sLogin + ",passwd:" + sPassword);
				java.sql.ResultSet rs = null;
				rs = func.openrs(stat,
						"select member_id, member_level from members where member_login ="
								+ func.toSQL(sLogin, Common.adText)
								+ " and member_password="
								+ func.toSQL(sPassword, Common.adText));

				if (rs.next()) {
					// Login and password passed
					session.setAttribute("UserID", rs.getString(1));

					session.setAttribute("UserRights", rs.getString(2));
					sQueryString = func.getParam(request, "querystring");
					sPage = func.getParam(request, "ret_page");
					if (!sPage.equals(request.getRequestURI())
							&& !"".equals(sPage)) {
						try {
							if (stat != null)
								stat.close();
							if (conn != null)
								conn.close();
						} catch (java.sql.SQLException ignore) {
						}
						response.sendRedirect(sPage + "?" + sQueryString);
						return "sendRedirect";
					}

					else {
						try {
							if (stat != null)
								stat.close();
							if (conn != null)
								conn.close();
						} catch (java.sql.SQLException ignore) {
						}
						response.sendRedirect("ShoppingCart.jsp");
						return "sendRedirect";
					}
				} else
					sLoginErr = "Login or Password is incorrect.";
				rs.close();

				break;
			}
			case ilogoutAction: {
				// Logout action

				session.setAttribute("UserID", "");
				session.setAttribute("UserRights", "");

				break;
			}
			}
		} catch (Exception e) {
			out.println(e.toString());
		}
		return (sLoginErr);
  }

  void Login_Show(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.http.HttpSession session, javax.servlet.jsp.JspWriter out, String sLoginErr, String sForm, String sAction, java.sql.Connection conn, java.sql.Statement stat) throws java.io.IOException {
    try {

			String sSQL = "";
			String transitParams = "";
			String sQueryString = func.getParam(request, "querystring");
			String sPage = func.getParam(request, "ret_page");

			out.println("    <table style=\"\" border=1>");
			out
					.println("     <tr>\n      <td style=\"background-color: #336699; text-align: Center; border-style: outset; border-width: 1\" colspan=\"2\"><font style=\"font-size: 12pt; color: #FFFFFF; font-weight: bold\">输入用户名和密码</font></td>\n     </tr>");

			if (sLoginErr.compareTo("") != 0) {
				out
						.println("     <tr>\n      <td colspan=\"2\" style=\"background-color: #FFFFFF; border-width: 1\"><font style=\"font-size: 10pt; color: #000000\">"
								+ sLoginErr + "</font></td>\n     </tr>");
			}
			sLoginErr = "";
			out.println("     <form action=\"" + sFileName
					+ "\" method=\"POST\">");
			out
					.println("     <input type=\"hidden\" name=\"FormName\" value=\"Login\">");

			System.out.println(session.getAttribute("UserID"));

			if (session.getAttribute("UserID") == null
					|| ((String) session.getAttribute("UserID")).compareTo("") == 0) {
				// User did not login

				out
						.println("     <tr>\n      <td style=\"background-color: #FFEAC5; border-style: inset; border-width: 0\"><font style=\"font-size: 10pt; color: #000000\">用户名</font></td><td style=\"background-color: #FFFFFF; border-width: 1\"><input type=\"text\" name=\"Login\" maxlength=\"50\" value=\""
								+ func.toHTML(func.getParam(request, "Login"))
								+ "\"></td>\n     </tr>");
				out
						.println("     <tr>\n      <td style=\"background-color: #FFEAC5; border-style: inset; border-width: 0\"><font style=\"font-size: 10pt; color: #000000\">密码</font></td><td style=\"background-color: #FFFFFF; border-width: 1\"><input type=\"password\" name=\"Password\" maxlength=\"50\"></td>\n     </tr>");
				out
						.print("     <tr>\n      <td colspan=\"2\"><input type=\"hidden\" name=\"FormAction\" value=\"login\"><input type=\"submit\" value=\"登入\">");
				out
						.println("<input type=\"hidden\" name=\"ret_page\" value=\""
								+ sPage
								+ "\"><input type=\"hidden\" name=\"querystring\" value=\""
								+ sQueryString
								+ "\"></td>\n     </form>\n     </tr>");
			} else {
				// User logged in
				String sUserID = func.dLookUp(stat, "members", "member_login",
						"member_id =" + session.getAttribute("UserID"));
				out
						.print("     <tr><td style=\"background-color: #FFFFFF; border-width: 1\"><font style=\"font-size: 10pt; color: #000000\">"
								+ sUserID
								+ "&nbsp;&nbsp;"
								+ "</font><input type=\"hidden\" name=\"FormAction\" value=\"logout\"/><input type=\"submit\" value=\"注销\"/>");
				out
						.print("<input type=\"hidden\" name=\"ret_page\" value=\""
								+ sPage
								+ "\"><input type=\"hidden\" name=\"querystring\" value=\""
								+ sQueryString + "\">");
				out.println("</td>\n     </form>\n     </tr>");
			}
			out.println("    </table>");

		} catch (Exception e) {
			out.println(e.toString());
			e.printStackTrace();
		}
  }

  private static java.util.Vector _jspx_dependants;

  public java.util.List getDependants() {
    return _jspx_dependants;
  }

  public void _jspService(HttpServletRequest request, HttpServletResponse response)
        throws java.io.IOException, ServletException {

    JspFactory _jspxFactory = null;
    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;


    try {
      _jspxFactory = JspFactory.getDefaultFactory();
      response.setContentType("text/html;charset=gb2312");
      pageContext = _jspxFactory.getPageContext(this, request, response,
      			null, true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;

      out.write('\r');
      out.write('\n');
      out.write('\r');
      out.write('\n');


String sAction = func.getParam( request, "FormAction");
String sForm = func.getParam( request, "FormName");
String sLoginErr = "";

java.sql.Connection conn = null;
java.sql.Statement stat = null;
String sErr = Common.loadDriver();
conn = func.cn();
stat = conn.createStatement();
if ( ! sErr.equals("") ) {
 try {
   out.println(sErr);
 }
 catch (Exception e) {}
}
if ( sForm.equals("Login") ) {
  sLoginErr = LoginAction(request, response, session, out, sAction, sForm, conn, stat);
  if ( "sendRedirect".equals(sLoginErr)) return;
}


      out.write("            \r\n");
      out.write("<html>\r\n");
      out.write("<head>\r\n");
      out.write("<title>Book Store</title>\r\n");
      out.write("<meta name=\"GENERATOR\" content=\"YesSoftware CodeCharge v.1.2.0 / JSP.ccp build 05/21/2001\"/>\r\n");
      out.write("<meta http-equiv=\"pragma\" content=\"no-cache\"/>\r\n");
      out.write("<meta http-equiv=\"expires\" content=\"0\"/>\r\n");
      out.write("<meta http-equiv=\"cache-control\" content=\"no-cache\"/>\r\n");
      out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\">\r\n");
      out.write("</head>\r\n");
      out.write("<body style=\"background-color: #FFFFFF; color: #000000; font-family: Arial, Tahoma, Verdana, Helveticabackground-color: #FFFFFF; color: #000000; font-family: Arial, Tahoma, Verdana, Helvetica\">\r\n");
      org.apache.jasper.runtime.JspRuntimeLibrary.include(request, response, "Header.jsp", out, true);
      out.write("<center>\r\n");
      out.write(" <table>\r\n");
      out.write("  <tr>\r\n");
      out.write("   \r\n");
      out.write("   <td valign=\"top\">\r\n");
 Login_Show(request, response, session, out, sLoginErr, sForm, sAction, conn, stat); 
      out.write("\r\n");
      out.write("   </td>\r\n");
      out.write("  </tr>\r\n");
      out.write(" </table>\r\n");
      out.write("\r\n");
      org.apache.jasper.runtime.JspRuntimeLibrary.include(request, response, "Footer.jsp", out, true);
      out.write("\r\n");
      out.write("</body>\r\n");
      out.write("</html>\r\n");

      out.write('\r');
      out.write('\n');

if ( stat != null ) stat.close();
if ( conn != null ) conn.close();

      out.write('\r');
      out.write('\n');
    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)){
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          out.clearBuffer();
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}