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I am struggling with the following problem. Can somebody pls help me?.
I am developing a wesbite for user can edit their files only, so i am going to develop a page for a Tree Structure in jsp.
I got one java code from internet, that working perfectly in java, it doesn't work after i converted in jsp. I don't know what is the problem in that code. If anybody knows the answer let me know....
When i run that code from jsp it throws the following error;
Error is:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 4 in the jsp file: /tree.jsp
Generated servlet error:
Syntax error on token "<"=", != expected
An error occurred at line: 4 in the jsp file: /tree.jsp
Generated servlet error:
Syntax error on token(s), misplaced construct(s)
An error occurred at line: 4 in the jsp file: /tree.jsp
Generated servlet error:
Syntax error on token ")", : expected
org.apache.jasper.compiler.DefaultErrorHandler.jav acError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacEr ror(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateCla ss(JDTCompiler.java:386)
org.apache.jasper.compiler.Compiler.compile(Compil er.java:280)
org.apache.jasper.compiler.Compiler.compile(Compil er.java:259)
org.apache.jasper.compiler.Compiler.compile(Compil er.java:247)
org.apache.jasper.JspCompilationContext.compile(Js pCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet .java:802)
Java class is:
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- package com.test;
- import java.util.;
- import java.io.;
- public class FileListing {
- /**
- * Recursively walk a directory tree and return a List of all
- * Files found; the List is sorted using File.compareTo().
- *
- * @param aStartingDir is a valid directory, which can be read.
- */
- public static List<File> getFileListing(File aStartingDir) throws FileNotFoundException
- {
- validateDirectory(aStartingDir);
- List<File> result = getFileListingNoSort(aStartingDir);
- Collections.sort(result);
- return result;
- }
- // PRIVATE //
- public static List<File> getFileListingNoSort(File aStartingDir) throws FileNotFoundException
- {
- List<File> result = new ArrayList<File>();
- File[] filesAndDirs = aStartingDir.listFiles();
- List<File> filesDirs = Arrays.asList(filesAndDirs);
- for(File file : filesDirs) {
- result.add(file); //always add, even if directory
- if ( ! file.isFile() ) {
- //must be a directory
- //recursive call!
- List<File> deeperList = getFileListingNoSort(file);
- result.addAll(deeperList);
- }
- }
- return result;
- }
- /**
- * Directory is valid if it exists, does not represent a file, and can be read.
- */
- public static void validateDirectory (File aDirectory) throws FileNotFoundException
- {
- if (aDirectory == null) {
- throw new IllegalArgumentException("Directory should not be null.");
- }
- if (!aDirectory.exists()) {
- throw new FileNotFoundException("Directory does not exist: " + aDirectory);
- }
- if (!aDirectory.isDirectory()) {
- throw new IllegalArgumentException("Is not a directory: " + aDirectory);
- }
- if (!aDirectory.canRead()) {
- throw new IllegalArgumentException("Directory cannot be read: " + aDirectory);
- }
- }
- }
Expand|Select|Wrap|Line Numbers
- <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1" import="java.io.File,java.util.*,com.test.*"%>
- <html>
- <body>
- <%
- try
- {
- com.test.FileListing tt = new com.test.FileListing();
- File startingDirectory = new File("D:/eclipse/workspace/cms/WebContent/");
- List<File> files = tt.getFileListing(startingDirectory); //Error in this line
- //print out all file names, in the the order of File.compareTo()
- for(File file : files )
- {
- System.out.println(file);
- }
- }
- catch(Exception e)
- {
- out.println("Error ocurred : "+e);
- }
- %>
- </body>
- </html>
V. Prasath.
