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Implementing a resource-like Explorer-type file and directory collapse with JSP (code example)

Source: Internet
Author: User
Tags resource
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js| Example <%@ page import = "SqlData"%>


<%@ page import= "java.sql.*"%>


<%@ page contenttype= "text/html;charset=gb2312"%>


<jsp:usebean id= "Sqlbean" class= "SqlData" scope= "session"/>


<html>


<body background= ". /images/back.jpg ">





<p align= "center" ><font size= "6" face= "italics _gb2312" > Introduction to Mao Zedong Thought </font></p>


<%


String aa,bb,cc,dd,ee,ff;


ResultSet rs=sqlbean.executequery ("SELECT * from Maogai");


int i=1,j=0;


while (Rs.next ())


{


aa=rs.getstring ("Sectiontype");


bb=rs.getstring ("sectionname");


cc=rs.getstring ("Indexfile");


ee=rs.getstring ("ZipFile");


Ff=rs.getstring ("Onlinefile");


dd=rs.getstring ("SESSIONID");


if (aa.indexof (' chap ') >-1)


{


if (j==1)


{


i=i+1;


out.println ("</table></div>");


}


j=0;


out.println ("");


out.println ("<div align= ' center ' >");


out.println ("<center>");


out.println ("<table border= ' 0 ' width= ' 90% ' height= ' 0 ' cellspacing= ' 0 ' cellpadding= ' 0 ' >");


out.println ("<tr>");


out.println ("<td height= ' 0 ' ><img name= ' img" +string.valueof (i) + "' border= ' 0 ' src= '". /images/fclosed.gif ' onclick= ' showandhide (div "+string.valueof" (i) + "," + "img" +string.valueof (i) + ") ' >");


out.print (bb+ "</td></tr></table></center></div>");


}


Else


{


if (j==0)


{


j=1;


out.println ("<div style= ' Display:none ' Id=div" +string.valueof (i) + "align= ' center ' >");


out.println ("<center>");


out.println ("<table border= ' 0 ' width= ' 90% ' height= ' 0 ' cellspacing= ' 0 ' cellpadding= ' 0 ' >");


out.println ("<tr><td height= ' > <img border= ' 0 ' src= ')." /images/file.gif ' > ');


out.print ("<a href=" windowsopen.jsp?indexfile=maogai/"+cc+" &sessionid= "+dd+" &zipfile= "+ee+" & onlinefile= "+ff+" ">" +bb+ "</a></td></tr>");


}


Else


{


out.println ("<tr><td height= ' > <img border= ' 0 ' src= ')." /images/file.gif ' > ');


Out.print ("<a href= ' windowsopen.jsp?indexfile=maogai/" +cc+ "&sessionid=" +dd+ "&zipfile=" +ee+ "& onlinefile= "+ff+" ">" +bb+ "</a></td></tr>");


}


}





}


%>


</body>


</html>


<script language=javascript>


function Showandhide (divname,imgname)


{


if (Divname.style.display = = "Block")


{


Divname.style.display = "None";


imgname.src= ". /images/fclosed.gif ";


Self.focus ();


} 


Else


{


divname.style.display = "block";


imgname.src= ". /images/fopen.gif ";


Self.focus ();


}


}


</script>








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