checklogin_jsp.java

简单的B/S用户管理系统。该功能是进行网站设计的通用模块。该管理系统登陆角色有两种：用户和管理员。用户成功登录可进行信息修改和注销操作。管理员成功登陆后可进行查询用户信息、删除用户和注销操作。

package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import com.sotrain.bus.*;

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

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

  private static java.util.List _jspx_dependants;

  private javax.el.ExpressionFactory _el_expressionfactory;
  private org.apache.AnnotationProcessor _jsp_annotationprocessor;

  public Object getDependants() {
    return _jspx_dependants;
  }

  public void _jspInit() {
    _el_expressionfactory = _jspxFactory.getJspApplicationContext(getServletConfig().getServletContext()).getExpressionFactory();
    _jsp_annotationprocessor = (org.apache.AnnotationProcessor) getServletConfig().getServletContext().getAttribute(org.apache.AnnotationProcessor.class.getName());
  }

  public void _jspDestroy() {
  }

  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");
      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');

	String loginrole = request.getParameter("loginrole");
	String username = request.getParameter("username");
	String password = request.getParameter("password");
	UserLogin userlogin=new UserLogin();
	if(userlogin.login(username,password,loginrole)=="0")
	{
		session.setAttribute("username",username);

      out.write("\r\n");
      out.write("\t\t");
      if (true) {
        _jspx_page_context.forward("user_frame.jsp");
        return;
      }
      out.write('\r');
      out.write('\n');

	}
	if(userlogin.login(username,password,loginrole)=="1")
	{
		session.setAttribute("username",username);

      out.write(" \r\n");
      out.write("\t\t");
      if (true) {
        _jspx_page_context.forward("admin_frame.jsp");
        return;
      }
      out.write('\r');
      out.write('\n');

	}
	if(userlogin.login(username,password,loginrole)=="2")
	{

      out.write("\r\n");
      out.write("\t\t");
      if (true) {
        _jspx_page_context.forward("index.jsp");
        return;
      }
      out.write('\r');
      out.write('\n');

	}

      out.write("\r\n");
      out.write("\r\n");
    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)){
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          try { out.clearBuffer(); } catch (java.io.IOException e) {}
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}