I am creating a spring web app for comparing two directories and I had stored all the absolute path of the directories containing file in a ArrayList now I want to display them on the jsp page as a tree structure but I am not getting how to implement this so please can anybody help me solving this.......how can I display the paths contained in the arraylist as a tree structure on JSP.....
I am trying to print like this.....
Root
|
|----Dependencies
| |----A
| |----B
| |----C
|
|----Dependents
|----D
|----E
This is my code for controller.... from which I am sending the list of path to jsp using session variable....my absolute paths are contained in the list filepath_firstdir and I want this filepath_firstdir to be printed on jsp as a tree.........
@Controller
public class DirectorySearchController {
public File folder;
public File folder2;
public Map<String,String> filepath_firstdir = new HashMap<String,String>();
public Map<String,String> filepath_seconddir = new HashMap<String,String>();
public List<String> filepath=new ArrayList<String>();
public Map<String,List<String>> NoChange=new HashMap<String,List<String>>();
public Map<String,List<String>> change=new HashMap<String,List<String>>();
public Map<String, String> newfile=new HashMap<String, String>();
public StringBuffer hex;
public StringBuffer hex1;
public HttpSession session;
public String msg;
@RequestMapping("/directory")
public ModelAndView scanDirectory(HttpServletRequest request,HttpServletResponse response) throws NoSuchAlgorithmException, IOException
{
String first_path=request.getParameter("uploaddir1");
String second_path=request.getParameter("uploaddir2");
folder = new File(first_path);
folder2=new File(second_path);
filepath_firstdir=listFilesForFolder(folder);
filepath_seconddir=listFilesForFolder(folder2);
/*String s=filepath_firstdir.toString();
String[] tokens=s.split("####");
for(String token:tokens)
filepath_seconddir.add(token);*/
session=request.getSession();
session.setAttribute("filepath_firstdir", filepath_firstdir);
session.setAttribute("filepath_seconddir", filepath_seconddir);
System.out.println(filepath_firstdir);
System.out.println(filepath_seconddir);
Iterator itr=filepath_firstdir.entrySet().iterator();
while(itr.hasNext())
{
Entry entry=(Entry) itr.next();
Object key=entry.getKey();
Object value=entry.getValue();
if(filepath_seconddir.containsValue(value))
{
hex=MD5Encryption.convertToHashCode(key.toString());
Iterator itr2=filepath_seconddir.entrySet().iterator();
while(itr2.hasNext())
{
Entry entryset=(Entry) itr2.next();
Object key2=entryset.getKey();
Object value2=entryset.getValue();
if(value2.equals(value))
{
hex1=MD5Encryption.convertToHashCode(key2.toString());
//System.out.println(hex);
//System.out.println(hex1);
if(hex.toString().equals(hex1.toString()))
{
List<String> NoChangevalues=new ArrayList<String>();
NoChangevalues.add(key.toString());
NoChangevalues.add(key2.toString());
NoChange.put(value.toString(),NoChangevalues);
}
else
{
List<String> Changevalues=new ArrayList<String>();
Changevalues.add(key.toString());
Changevalues.add(key2.toString());
change.put(value.toString(),Changevalues);
}
}
}
}
else
newfile.put(key.toString(), value.toString());
}
Iterator itr2=filepath_seconddir.entrySet().iterator();
while(itr2.hasNext())
{
Entry entryset=(Entry) itr2.next();
Object key=entryset.getKey();
Object value=entryset.getValue();
if(!filepath_firstdir.containsValue(value))
newfile.put(key.toString(), value.toString());
}
session.setAttribute("NoChange", NoChange);
session.setAttribute("Change", change);
session.setAttribute("newfile", newfile);
return new ModelAndView("success","message",msg);
}
public Map<String, String> listFilesForFolder(File folder) {
String temp="";
Map<String,String> filepath=new HashMap<String,String>();
//List<String> filepath2=new ArrayList<String>();
for (File fileEntry : folder.listFiles()) {
if (fileEntry.isDirectory()) {
filepath.putAll(listFilesForFolder(fileEntry));
} else {
if (fileEntry.isFile()) {
temp = fileEntry.getName();
//if ((temp.substring(temp.lastIndexOf('.') + 1, temp.length()).toLowerCase()).equals("txt"))
{
System.out.println("File= " + folder.getAbsolutePath()+ "\\" + fileEntry.getName());
filepath.put(folder.getAbsolutePath()+"\\"+fileEntry.getName(),fileEntry.getName());
}
}
}
}
return filepath;
}}
