login_jsp.java

JSP初学者

package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.util.*;
import xinwen.*;
import java.sql.*;

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

  private static final JspFactory _jspxFactory = JspFactory.getDefaultFactory();

  private static java.util.Vector _jspx_dependants;

  private org.apache.jasper.runtime.ResourceInjector _jspx_resourceInjector;

  public Object getDependants() {
    return _jspx_dependants;
  }

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

    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 {
      response.setContentType("text/html; charset=GBK");
      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;
      _jspx_resourceInjector = (org.apache.jasper.runtime.ResourceInjector) application.getAttribute("com.sun.appserv.jsp.resource.injector");

      out.write("\r\n");
      out.write("\r\n");
      out.write("\r\n");
      out.write("\r\n");
//运行错误
request.setCharacterEncoding("GBK");
String pass=request.getParameter("passWord");
String name=request.getParameter("name");
Connection con=null;
PreparedStatement pStatement=null;
try{
    con=ConnectionManager.getConnection();
    String sql="select * from  User where loginname=? and password=?";
    pStatement=con.prepareStatement(sql);
    pStatement.setString(1, name);
    pStatement.setString(2, pass);
    ResultSet rs=pStatement.executeQuery();
    if(rs.next()){
        User loginedUser= new User(name,pass);
        session.setAttribute("LOGINED_USER",loginedUser );
        response.sendRedirect("createLevelOneTitle.jsp");

        }else{
        response.sendRedirect("login.html");
        }

    }catch(Exception r){
        out.println("发生错误！错误原因："+r.getMessage());
        }finally{
            ConnectionManager.closeStatement(pStatement);
            ConnectionManager.closeConnection(con);
            }


    } 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 {
      _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}