Jsp/Servlet

开发平台：
VBScript

kecheng2_0002ejsp_jsp.java：源码内容
							import java.sql.*;
import java.util.*;
import proj112.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import org.apache.jasper.runtime.*;
public class kecheng2_0002ejsp_jsp extends HttpJspBase {
    // begin [file="/kecheng2.jsp";from=(5,0);to=(5,57)]
    // end
    static {
    }
    public kecheng2_0002ejsp_jsp( ) {
    }
    private static boolean _jspx_inited = false;
    public final void _jspx_init() throws org.apache.jasper.runtime.JspException {
    }
    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;
        String  _value = null;
        try {
            if (_jspx_inited == false) {
                synchronized (this) {
                    if (_jspx_inited == false) {
                        _jspx_init();
                        _jspx_inited = true;
                    }
                }
            }
            _jspxFactory = JspFactory.getDefaultFactory();
            response.setContentType("text/html; charset=GBK");
            pageContext = _jspxFactory.getPageContext(this, request, response,
            			"", true, 8192, true);
            application = pageContext.getServletContext();
            config = pageContext.getServletConfig();
            session = pageContext.getSession();
            out = pageContext.getOut();
            // HTML // begin [file="/kecheng2.jsp";from=(0,48);to=(1,0)]
                out.write("rn");
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(1,31);to=(2,0)]
                out.write("rn");
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(2,27);to=(3,0)]
                out.write("rn");
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(3,32);to=(4,0)]
                out.write("rn");
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(4,30);to=(5,0)]
                out.write("rn");
            // end
            // begin [file="/kecheng2.jsp";from=(5,0);to=(5,57)]
                proj112.dbconn a = null;
                boolean _jspx_speciala  = false;
                 synchronized (pageContext) {
                    a= (proj112.dbconn)
                    pageContext.getAttribute("a",PageContext.PAGE_SCOPE);
                    if ( a == null ) {
                        _jspx_speciala = true;
                        try {
                            a = (proj112.dbconn) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "proj112.dbconn");
                        } catch (ClassNotFoundException exc) {
                             throw new InstantiationException(exc.getMessage());
                        } catch (Exception exc) {
                             throw new ServletException (" Cannot create bean of class "+"proj112.dbconn", exc);
                        }
                        pageContext.setAttribute("a", a, PageContext.PAGE_SCOPE);
                    }
                 } 
                if(_jspx_speciala == true) {
            // end
            // begin [file="/kecheng2.jsp";from=(5,0);to=(5,57)]
                }
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(5,57);to=(14,0)]
                out.write("rn<html>rn<head>rn<title>rnkecheng3rn</title>rn</head>rn<body bgcolor="#ffffff">rnrn");
            // end
            // begin [file="/kecheng2.jsp";from=(14,2);to=(30,4)]
                
                 request.setCharacterEncoding("GBK");
                 String kechenghao=request.getParameter("id2");
                 String xuehao=(String)session.getAttribute("id");
                 String sql="";
                 String sql2="";
                 String sql3="";
                 int totalrecord = 0;
                   sql3= "SELECT count(*) as recordcount FROM 选课关联 where stu_id='"+xuehao+"'";
                   ResultSet rs = a.executeQuery(sql3);
                   if (rs.next()) totalrecord = rs.getInt("recordcount");
                  if(totalrecord<3)
                 {
                   sql="SELECT * FROM 选课关联 where stu_id='"+xuehao+"' and kch='"+kechenghao+"'";
                   ResultSet rs1=a.executeQuery(sql);
                   if(rs1.next())
                   {
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(30,6);to=(34,3)]
                out.write("rn   <script language="javascript">rn   alert("你已经选了这门课，请重新选择");rn   </script>rn   ");
            // end
            // begin [file="/kecheng2.jsp";from=(34,5);to=(39,5)]
                }
                   else
                   {
                     sql2=" INSERT INTO 选课关联(stu_id,kch) values('"+xuehao+"','"+kechenghao+"')";
                     a.executeUpdate(sql2);
                     
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(39,7);to=(43,5)]
                out.write("rn     <script language="javascript">rn     alert("选课成功，请继续选课");rn     </script>rn     ");
            // end
            // begin [file="/kecheng2.jsp";from=(43,7);to=(46,2)]
                 }
                 }
                 else
                 {
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(46,4);to=(50,1)]
                out.write("rn    <script language="javascript">rn     alert("你只能选3门课程，请确认后在选");rn     </script>rn ");
            // end
            // begin [file="/kecheng2.jsp";from=(50,3);to=(51,0)]
                }
            // end
            // HTML // begin [file="/kecheng2.jsp";from=(51,2);to=(60,0)]
                out.write("rn  <script language="javascript">rn  history.go(-1) ;rn  </script>rnrnrnrn</body>rn</html>rn");
            // end
        } catch (Throwable t) {
            if (out != null && out.getBufferSize() != 0)
                out.clearBuffer();
            if (pageContext != null) pageContext.handlePageException(t);
        } finally {
            if (_jspxFactory != null) _jspxFactory.releasePageContext(pageContext);
        }
    }
}

						