classmanager_jsp.java

这是一个我刚学的时候开发的关于JSP方面的小实例,希望能对初学者有帮助.

package org.apache.jsp;

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

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

  private static java.util.Vector _jspx_dependants;

  public java.util.List getDependants() {
    return _jspx_dependants;
  }

  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;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;


    try {
      _jspxFactory = JspFactory.getDefaultFactory();
      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;

      out.write('\r');
      out.write('\n');
if(session.getAttribute("admin")==null){
response.sendRedirect("login.jsp");
} 
      out.write('\r');
      out.write('\n');
      hsjsp.ClassmanagerBean query = null;
      synchronized (_jspx_page_context) {
        query = (hsjsp.ClassmanagerBean) _jspx_page_context.getAttribute("query", PageContext.PAGE_SCOPE);
        if (query == null){
          query = new hsjsp.ClassmanagerBean();
          _jspx_page_context.setAttribute("query", query, PageContext.PAGE_SCOPE);
        }
      }
      out.write("\r\n");
      out.write("\r\n");
      out.write("<script language=\"JavaScript\" type=\"text/JavaScript\">\r\n");
      out.write("function checkBig()\r\n");
      out.write("{\r\n");
      out.write("  if (document.form1.BigClassName.value==\"\")\r\n");
      out.write("  {\r\n");
      out.write("    alert(\"大类名称不能为空！\");\r\n");
      out.write("    document.form1.BigClassName.focus();\r\n");
      out.write("    return false;\r\n");
      out.write("  }\r\n");
      out.write("}\r\n");
      out.write("function checkSmall()\r\n");
      out.write("{\r\n");
      out.write("  if (document.form2.BigClassName.value==\"\")\r\n");
      out.write("  {\r\n");
      out.write("    alert(\"请先添加大类名称！\");\r\n");
      out.write("\tdocument.form1.BigClassName.focus();\r\n");
      out.write("\treturn false;\r\n");
      out.write("  }\r\n");
      out.write("\r\n");
      out.write("  if (document.form2.SmallClassName.value==\"\")\r\n");
      out.write("  {\r\n");
      out.write("    alert(\"小类名称不能为空！\");\r\n");
      out.write("\tdocument.form2.SmallClassName.focus();\r\n");
      out.write("\treturn false;\r\n");
      out.write("  }\r\n");
      out.write("}\r\n");
      out.write("function ConfirmDelBig()\r\n");
      out.write("{\r\n");
      out.write("   if(confirm(\"确定要删除此大类吗？删除此大类同时将删除所包含的小类和该类下的所有新闻，并且不能恢复！\"))\r\n");
      out.write("     return true;\r\n");
      out.write("   else\r\n");
      out.write("     return false;\r\n");
      out.write("\r\n");
      out.write("}\r\n");
      out.write("\r\n");
      out.write("function ConfirmDelSmall()\r\n");
      out.write("{\r\n");
      out.write("   if(confirm(\"确定要删除此小类吗？删除此小类同时将删除该类下的所有新闻，并且不能恢复！\"))\r\n");
      out.write("     return true;\r\n");
      out.write("   else\r\n");
      out.write("     return false;\r\n");
      out.write("\r\n");
      out.write("}\r\n");
      out.write("</script>\r\n");
      out.write("<LINK href=\"images/css.css\" type=text/css rel=stylesheet>\r\n");
      out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\">\r\n");
      out.write("<table width=\"90%\" border=\"0\" align=\"center\" cellpadding=\"0\" cellspacing=\"0\">\r\n");
      out.write("  <tr>\r\n");
      out.write("    <td align=\"center\" valign=\"top\"><br>\r\n");
      out.write("      <a href=\"classaddbig.jsp\"><strong><font color=\"#FF0000\"><u>添加新闻一级分类</u></font></strong></a><br>\r\n");
      out.write("      <br>\r\n");
      out.write("      <table width=\"747\" border=\"0\" cellpadding=\"0\" cellspacing=\"1\" bgcolor=\"#000000\">\r\n");
      out.write("        <tr>\r\n");
      out.write("          <td width=\"50%\" height=\"30\" align=\"center\" bgcolor=\"#999999\"><strong>栏目名称</strong></td>\r\n");
      out.write("          <td height=\"30\" align=\"center\" bgcolor=\"#999999\"><strong>操作选项</strong></td>\r\n");
      out.write("        </tr>\r\n");
      out.write("          ");
 Vector v=new Vector();
          v=query.querybigclass();
          Enumeration e=v.elements();
          while(e.hasMoreElements())
         {
           Vector x=(Vector)e.nextElement();
            
      out.write("\r\n");
      out.write("         <tr bgcolor=\"#E3E3E3\" class=\"tdbg\">\r\n");
      out.write("           <td width=\"233\" height=\"22\" bgcolor=\"#C0C0C0\"><img src=\"images/+.gif\" width=\"15\" height=\"15\">\r\n");
      out.write("              ");
      out.print(x.get(1));
      out.write("\r\n");
      out.write("           </td>\r\n");
      out.write("           <td align=\"right\" bgcolor=\"#C0C0C0\" style=\"padding-right:10\">\r\n");
      out.write("              <a href=\"alterclassbig.jsp?id=");
      out.print(x.get(0));
      out.write("&name=");
      out.print(x.get(1));
      out.write("\">修改</a>\r\n");
      out.write("             | <a href=\"chkdelect.jsp?id=");
      out.print(x.get(0));
      out.write("\" onClick=\"return ConfirmDelBig();\">删除</a></td>\r\n");
      out.write("           </tr>\r\n");
      out.write("\r\n");
      out.write("            ");
 }
      out.write("\r\n");
      out.write("\r\n");
      out.write("\r\n");
      out.write("      </table>\r\n");
      out.write("      <br>\r\n");
      out.write("    </td>\r\n");
      out.write("  </tr>\r\n");
      out.write("</table>\r\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)
          out.clearBuffer();
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}