新手学习Java web。

package org.apache.jsp.com;

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

public final class top_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 org.glassfish.jsp.api.ResourceInjector _jspx_resourceInjector;

  public java.util.List 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=UTF-8“）;
      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.glassfish.jsp.api.ResourceInjector） application.getAttribute（“com.sun.appserv.jsp.resource.injector“）;

      out.write（“\n“）;
      out.write（“\n“）;
      out.write（“\n“）;

    String path = request.getContextPath（）;
    String basePath = request.getScheme（） + “://“
            + request.getServerName（） + “:“ + request.getServerPort（）
            + path + “/“;

      out.write（‘\n‘）;

    String username=（String）session.getAttribute（“user“）;

      out.write（“\n“）;
      out.write（“\n“）;
      out.write（“\n“）;
      out.write（“    \n“）;
      out.write（“        se href=\““）;
      out.print（basePath）;
      out.write（“\“>\n“）;
      out.write（“        ta http-equiv=\“Content-Type\“ content=\“text/html; charset=UTF-8\“>\n“）;
      out.write（“        tle>头部tle>\n“）;
      out.write（“    \n“）;
      out.write（“    \n“）;
      out.write（“        \n“）;
      out.write（“            
USER
\n“）;
      out.write（“           \n“）;
      out.write（“            yle=‘border-collapse:collapse;table-layout: fixed‘>\n“）;
      out.write（“                \n“）;
      out.write（“                    “）;
 if（username==null）{
      out.write（“\n“）;
      out.write（“                        登录  注册\n“）;
      out.write（“                    “）;

                        }else{

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-11-26 20:33  案例4 登录注册\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\empty\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\classes\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\classes\org\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\classes\org\apache\
     目录           0  2018-11-29 16:53  案例4 登录注册\build\generated\classes\org\apache\jsp\
     目录           0  2018-11-29 16:53  案例4 登录注册\build\generated\classes\org\apache\jsp\com\
     文件        5431  2018-11-29 16:53  案例4 登录注册\build\generated\classes\org\apache\jsp\com\top_jsp.class
     目录           0  2018-11-26 20:46  案例4 登录注册\build\generated\classes\org\apache\jsp\common\
     文件        5549  2018-11-26 20:46  案例4 登录注册\build\generated\classes\org\apache\jsp\common\top_jsp.class
     目录           0  2018-11-29 17:24  案例4 登录注册\build\generated\classes\org\apache\jsp\user\
     文件        5862  2018-11-29 17:07  案例4 登录注册\build\generated\classes\org\apache\jsp\user\login_jsp.class
     文件        6840  2018-11-29 17:10  案例4 登录注册\build\generated\classes\org\apache\jsp\user\register_jsp.class
     文件        5704  2018-11-29 17:25  案例4 登录注册\build\generated\classes\org\apache\jsp\user\show_jsp.class
     文件        4313  2018-11-29 17:26  案例4 登录注册\build\generated\classes\org\apache\jsp\user\welcome_jsp.class
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\src\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\src\org\
     目录           0  2018-11-26 20:39  案例4 登录注册\build\generated\src\org\apache\
     目录           0  2018-11-29 16:53  案例4 登录注册\build\generated\src\org\apache\jsp\
     目录           0  2018-11-29 16:53  案例4 登录注册\build\generated\src\org\apache\jsp\com\
     文件         167  2018-11-29 16:53  案例4 登录注册\build\generated\src\org\apache\jsp\com\top_jsp.class.smap
     文件        4183  2018-11-29 16:53  案例4 登录注册\build\generated\src\org\apache\jsp\com\top_jsp.java
     目录           0  2018-11-26 20:46  案例4 登录注册\build\generated\src\org\apache\jsp\common\
     文件         170  2018-11-26 20:46  案例4 登录注册\build\generated\src\org\apache\jsp\common\top_jsp.class.smap
     文件        4306  2018-11-26 20:46  案例4 登录注册\build\generated\src\org\apache\jsp\common\top_jsp.java
     目录           0  2018-11-29 17:24  案例4 登录注册\build\generated\src\org\apache\jsp\user\
     文件         164  2018-11-29 17:07  案例4 登录注册\build\generated\src\org\apache\jsp\user\login_jsp.class.smap
     文件        4497  2018-11-29 17:07  案例4 登录注册\build\generated\src\org\apache\jsp\user\login_jsp.java
     文件         176  2018-11-29 17:10  案例4 登录注册\build\generated\src\org\apache\jsp\user\register_jsp.class.smap
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