studentwsxk2_0002ejsp_jsp.java

网上选课程序：a.使用JSP/Servlet开发

import java.sql.*;
import  java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import org.apache.jasper.runtime.*;


public class studentwsxk2_0002ejsp_jsp extends HttpJspBase {

    // begin [file="/studentwsxk2.jsp";from=(2,0);to=(2,55)]
    // end

    static {
    }
    public studentwsxk2_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=gb2312");
            pageContext = _jspxFactory.getPageContext(this, request, response,
            			"", true, 8192, true);

            application = pageContext.getServletContext();
            config = pageContext.getServletConfig();
            session = pageContext.getSession();
            out = pageContext.getOut();

            // HTML // begin [file="/studentwsxk2.jsp";from=(0,69);to=(1,0)]
                out.write("\r\n");

            // end
            // HTML // begin [file="/studentwsxk2.jsp";from=(1,44);to=(2,0)]
                out.write("\r\n");

            // end
            // begin [file="/studentwsxk2.jsp";from=(2,0);to=(2,55)]
                wsxk.ConDB sts = null;
                boolean _jspx_specialsts  = false;
                 synchronized (pageContext) {
                    sts= (wsxk.ConDB)
                    pageContext.getAttribute("sts",PageContext.PAGE_SCOPE);
                    if ( sts == null ) {
                        _jspx_specialsts = true;
                        try {
                            sts = (wsxk.ConDB) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "wsxk.ConDB");
                        } catch (ClassNotFoundException exc) {
                             throw new InstantiationException(exc.getMessage());
                        } catch (Exception exc) {
                             throw new ServletException (" Cannot create bean of class "+"wsxk.ConDB", exc);
                        }
                        pageContext.setAttribute("sts", sts, PageContext.PAGE_SCOPE);
                    }
                 } 
                if(_jspx_specialsts == true) {
            // end
            // begin [file="/studentwsxk2.jsp";from=(2,0);to=(2,55)]
                }
            // end
            // HTML // begin [file="/studentwsxk2.jsp";from=(2,55);to=(4,0)]
                out.write("\r\n\r\n");

            // end
            // begin [file="/studentwsxk2.jsp";from=(4,2);to=(26,0)]
                
                	String strSQL1 = "select scid from sc order by scid asc";
                	ResultSet rs2 = sts.executeQuery(strSQL1);
                	String MaxID = new String();
                	int id1 = 0;
                	while(rs2.next())
                	{
                		id1 = rs2.getInt("scid");
                	}
                	/*int k = 0;
                	for (k = 0; k < 999999; k++)
                	{
                 	  if (id.equals(MaxID.valueOf(k)))
                		break;
                	}
                	++k;
                	if (k >= 999999)
                		k = 1;
                	id = MaxID.valueOf(k);*/
                	id1++;
                	System.out.println("id1" + id1);
                rs2.close();
            // end
            // HTML // begin [file="/studentwsxk2.jsp";from=(26,2);to=(28,0)]
                out.write("\r\n\r\n");

            // end
            // begin [file="/studentwsxk2.jsp";from=(28,2);to=(44,0)]
                
                String couid = new String();
                String teaid = new String();
                
                String tcid = new String (request.getParameter("xuan"));
                System.out.println (tcid);
                int id =  Integer.parseInt(tcid);
                System.out.println (id);
                String sql = "select  tcid,teaid,couid from tc where tcid = "+id+"";
                ResultSet rs = sts.executeQuery(sql);
                while(rs.next())
                {
                  	couid = rs.getString("couid");
                	teaid = rs.getString("teaid");
                
                }
            // end
            // HTML // begin [file="/studentwsxk2.jsp";from=(44,2);to=(45,0)]
                out.write("\r\n");

            // end
            // begin [file="/studentwsxk2.jsp";from=(45,2);to=(48,0)]
                
                String sql2 = "insert into sc(scid,teaid,couid,stuid) values("+id1+",'"+teaid+"','"+couid+"','"+session.getValue("wnum")+"')";
                sts.executeUpdate(sql2);
            // end
            // HTML // begin [file="/studentwsxk2.jsp";from=(48,2);to=(74,7)]
                out.write("\r\n<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\">\r\n<meta HTTP-EQUIV=REFRESH CONTENT=\"5; URL=studentwsxk.jsp\">\r\n<link href=\"_notes/aaa.css\" rel=\"stylesheet\" type=\"text/css\">\r\n<style type=\"text/css\">\r\n<!--\r\n@import url(\"_notes/ccc\");\r\nbody,td,th {\r\n\tfont-size: 12px;\r\n\tcolor: #FFFFFF;\r\n\tfont-weight: bold;\r\n}\r\n.style1 {color: #000000}\r\n-->\r\n</style>\r\n</HEAD>\r\n<BODY BGCOLOR=#0D85A6 BACKGROUND=\"images/bg.gif\" >\r\n<div align=\"center\">\r\n  <p align=\"center\">    <br>\r\n  您已经成功选取该课程，本页将于5秒内自动<a href=\"studentwsxk.jsp\" class=\"style1\">返回前页</a>  </p>\r\n  <p><br>\r\n    <img src=\"images/index_globe.jpg\" width=\"760\" height=\"186\"></p>\r\n</div>\r\n</BODY>\r\n</HTML>");

            // 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);
        }
    }
}