Estou com uma dúvida em Upload, é que a plicação não esta importanto uma
classe para o programa a classe Log.
Pelo Amor de Deus se alguém tiver uma classe e jsp funcionando (UPLOAD) me
mande, que já estou a 2 semanas atrás dessas classes e JSP, mas nehuma esta
funcionando corretamente.
Essas são as classes:
package org.apache.commons.fileupload;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Serializable;
import java.io.UnsupportedEncodingException;
/
public interface FileItem extends Serializable
{
// ------------------------------- Methods from
javax.activation.DataSource
/**
* Returns an [EMAIL PROTECTED] java.io.InputStream InputStream} that can be
* used to retrieve the contents of the file.
*
* @return An [EMAIL PROTECTED] java.io.InputStream InputStream} that can be
* used to retrieve the contents of the file.
*
* @exception IOException if an error occurs.
*/
InputStream getInputStream()
throws IOException;
/**
* Returns the content type passed by the browser or <code>null</code>
if
* not defined.
*
* @return The content type passed by the browser or <code>null</code>
if
* not defined.
*/
String getContentType();
/**
* Returns the original filename in the client's filesystem.
*
* @return The original filename in the client's filesystem.
*/
String getName();
// ----------------------------------------------------- Manifest
constants
/**
* The maximal size of request that will have it's elements stored
* in memory.
*/
public static final int DEFAULT_UPLOAD_SIZE_THRESHOLD = 10240;
// ------------------------------------------------------- FileItem
methods
/**
* Provides a hint as to whether or not the file contents will be read
* from memory.
*
* @return <code>true</code> if the file contents will be read
* from memory.
*/
boolean isInMemory();
/**
* Returns the size of the file.
*
* @return The size of the file, in bytes.
*/
long getSize();
/**
* Returns the contents of the file as an array of bytes. If the
* contents of the file were not yet cached in memory, they will be
* loaded from the disk storage and cached.
*
* @return The contents of the file as an array of bytes.
*/
byte[] get();
/**
* Returns the contents of the file as a String, using the specified
* encoding. This method uses [EMAIL PROTECTED] #get()} to retrieve the
* contents of the file.
*
* @param encoding The character encoding to use.
*
* @return The contents of the file, as a string.
*
* @exception UnsupportedEncodingException if the requested character
* encoding is not available.
*/
String getString(String encoding)
throws UnsupportedEncodingException;
/**
* Returns the contents of the file as a String, using the default
* character encoding. This method uses [EMAIL PROTECTED] #get()} to retrieve the
* contents of the file.
*
* @return The contents of the file, as a string.
*/
String getString();
/**
* Returns the [EMAIL PROTECTED] java.io.File} object for the
<code>FileItem</code>'s
* data's temporary location on the disk. Note that for
* <code>FileItem</code>s that have their data stored in memory,
* this method will return <code>null</code>. When handling large
* files, you can use [EMAIL PROTECTED] java.io.File#renameTo(File)} to
* move the file to new location without copying the data, if the
* source and destination locations reside within the same logical
* volume.
*
* @return The data file, or <code>null</code> if the data is stored in
* memory.
*/
File getStoreLocation();
/**
* A convenience method to write an uploaded file to disk. The client
code
* is not concerned whether or not the file is stored in memory, or on
disk
* in a temporary location. They just want to write the uploaded file to
* disk.
*
* @param file The full path to location where the uploaded file should
* be stored.
*
* @exception Exception if an error occurs.
*/
void write(String file) throws Exception;
/**
* Deletes the underlying storage for a file item, including deleting
any
* associated temporary disk file. Although this storage will be deleted
* automatically when the <code>FileItem</code> instance is garbage
* collected, this method can be used to ensure that this is done at an
* earlier time, thus preserving system resources.
*/
void delete();
/**
* Returns the name of the field in the multipart form corresponding to
* this file item.
*
* @return The name of the form field.
*/
String getFieldName();
/**
* Sets the field name used to reference this file item.
*
* @param name The name of the form field.
*/
void setFieldName(String name);
/**
* Determines whether or not a <code>FileItem</code> instance represents
* a simple form field.
*
* @return <code>true</code> if the instance represents a simple form
* field; <code>false</code> if it represents an uploaded file.
*/
boolean isFormField();
/**
* Specifies whether or not a <code>FileItem</code> instance represents
* a simple form field.
*
* @param state <code>true</code> if the instance represents a simple
form
* field; <code>false</code> if it represents an uploaded
file.
*/
void setIsFormField(boolean state);
public OutputStream getOutputStream() throws IOException;
}
/*
* $Header:
/home/cvs/jakarta-commons/fileupload/src/java/org/apache/commons/fileupload/
FileUpload.java,v 1.15 2002/12/25 04:05:07 martinc Exp $
* $Revision: 1.15 $
* $Date: 2002/12/25 04:05:07 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.fileupload;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.List;
import java.util.ArrayList;
import java.util.HashMap;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.beanutils.MethodUtils;
public class FileUpload
{
// ----------------------------------------------------- Class methods
/**
* Utility method that determines whether the request contains multipart
* content.
*
* @param req The servlet request to be evaluated. Must be non-null.
*
* @return <code>true</code> if the request is multipart;
* <code>false</code> otherwise.
*/
public static final boolean isMultipartContent(HttpServletRequest req)
{
String contentType = req.getHeader(CONTENT_TYPE);
if (contentType == null)
{
return false;
}
if (contentType.startsWith(MULTIPART))
{
return true;
}
return false;
}
// ----------------------------------------------------- Manifest
constants
/**
* HTTP content type header name.
*/
public static final String CONTENT_TYPE = "Content-type";
/**
* HTTP content disposition header name.
*/
public static final String CONTENT_DISPOSITION = "Content-disposition";
/**
* Content-disposition value for form data.
*/
public static final String FORM_DATA = "form-data";
/**
* Content-disposition value for file attachment.
*/
public static final String ATTACHMENT = "attachment";
/**
* Part of HTTP content type header.
*/
private static final String MULTIPART = "multipart/";
/**
* HTTP content type header for multipart forms.
*/
public static final String MULTIPART_FORM_DATA = "multipart/form-data";
/**
* HTTP content type header for multiple uploads.
*/
public static final String MULTIPART_MIXED = "multipart/mixed";
/**
* The maximum length of a single header line that will be parsed
* (1024 bytes).
*/
public static final int MAX_HEADER_SIZE = 1024;
// ----------------------------------------------------------- Data
members
/**
* The maximum size permitted for an uploaded file.
*/
private int sizeMax;
/**
* The threshold above which uploads will be stored on disk.
*/
private int sizeThreshold;
/**
* The path to which uploaded files will be stored, if stored on disk.
*/
private String repositoryPath;
/**
* The name of the class to use for <code>FileItem</code>s.
*/
private String fileItemClassName =
"org.apache.commons.fileupload.DefaultFileItem";
/**
* The cached method for obtaining a new <code>FileItem</code> instance.
*/
private Method newInstanceMethod;
// ----------------------------------------------------- Property
accessors
/**
* Returns the maximum allowed upload size.
*
* @return The maximum allowed size, in bytes.
*
* @see #setSizeMax(int)
*
*/
public int getSizeMax()
{
return sizeMax;
}
/**
* Sets the maximum allowed upload size. If negative, there is no
maximum.
*
* @param sizeMax The maximum allowed size, in bytes, or -1 for no
maximum.
*
* @see #getSizeMax()
*
*/
public void setSizeMax(int sizeMax)
{
this.sizeMax = sizeMax;
}
/**
* Returns the size threshold beyond which files are written directly to
* disk. The default value is 1024 bytes.
*
* @return The size threshold, in bytes.
*
* @see #setSizeThreshold(int)
*
*
*/
public int getSizeThreshold()
{
return sizeThreshold;
}
/**
* Sets the size threshold beyond which files are written directly to
disk.
*
* @param sizeThreshold The size threshold, in bytes.
*
* @see #getSizeThreshold()
*
*/
public void setSizeThreshold(int sizeThreshold)
{
this.sizeThreshold = sizeThreshold;
}
/**
* Returns the location used to temporarily store files that are larger
* than the configured size threshold.
*
* @return The path to the temporary file location.
*
* @see #setRepositoryPath(String)
*
*/
public String getRepositoryPath()
{
return repositoryPath;
}
/**
* Sets the location used to temporarily store files that are larger
* than the configured size threshold.
*
* @param repositoryPath The path to the temporary file location.
*
* @see #getRepositoryPath()
*
*/
public void setRepositoryPath(String repositoryPath)
{
this.repositoryPath = repositoryPath;
}
/**
* Returns the fully qualified name of the class which will be used to
* instantiate <code>FileItem</code> instances when a request is parsed.
*
* @return The fully qualified name of the Java class.
*
* @see #setFileItemClassName(String)
*
*/
public String getFileItemClassName()
{
return fileItemClassName;
}
/**
* Sets the fully qualified name of the class which will be used to
* instantiate <code>FileItem</code> instances when a request is parsed.
*
* @param fileItemClassName The fully qualified name of the Java class.
*
* @see #getFileItemClassName()
*
*/
public void setFileItemClassName(String fileItemClassName)
{
this.fileItemClassName = fileItemClassName;
this.newInstanceMethod = null;
}
// --------------------------------------------------------- Public
methods
/**
* Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt";>RFC
1867</a>
* compliant <code>multipart/form-data</code> stream. If files are
stored
* on disk, the path is given by <code>getRepositoryPath()</code>.
*
* @param req The servlet request to be parsed.
*
* @return A list of <code>FileItem</code> instances parsed from the
* request, in the order that they were transmitted.
*
* @exception FileUploadException if there are problems reading/parsing
* the request or storing files.
*/
public List /* FileItem */ parseRequest(HttpServletRequest req)
throws FileUploadException
{
return parseRequest(req, getSizeThreshold(), getSizeMax(),
getRepositoryPath());
}
/**
* Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt";>RFC
1867</a>
* compliant <code>multipart/form-data</code> stream. If files are
stored
* on disk, the path is given by <code>getRepositoryPath()</code>.
*
* @param req The servlet request to be parsed. Must be
non-null.
* @param sizeThreshold The max size in bytes to be stored in memory.
* @param sizeMax The maximum allowed upload size, in bytes.
* @param path The location where the files should be stored.
*
* @return A list of <code>FileItem</code> instances parsed from the
* request, in the order that they were transmitted.
*
* @exception FileUploadException if there are problems reading/parsing
* the request or storing files.
*/
public List /* FileItem */ parseRequest(HttpServletRequest req,
int sizeThreshold,
int sizeMax, String path)
throws FileUploadException
{
if (null == req)
{
throw new NullPointerException("req parameter");
}
ArrayList items = new ArrayList();
String contentType = req.getHeader(CONTENT_TYPE);
if ((null == contentType) || (!contentType.startsWith(MULTIPART)))
{
throw new FileUploadException("the request doesn't contain a "
+ MULTIPART_FORM_DATA
+ " or "
+ MULTIPART_MIXED
+ " stream, content type header is "
+ contentType);
}
int requestSize = req.getContentLength();
if (requestSize == -1)
{
throw new FileUploadException("the request was rejected because
" +
"it's size is unknown");
}
if (sizeMax >= 0 && requestSize > sizeMax)
{
throw new FileUploadException("the request was rejected because
" +
"it's size exceeds allowed range");
}
try
{
byte[] boundary = contentType.substring(
contentType.indexOf("boundary=") + 9).getBytes();
InputStream input = (InputStream) req.getInputStream();
MultipartStream multi = new MultipartStream(input, boundary);
boolean nextPart = multi.skipPreamble();
while (nextPart)
{
Map headers = parseHeaders(multi.readHeaders());
String fieldName = getFieldName(headers);
if (fieldName != null)
{
String subContentType = getHeader(headers,
CONTENT_TYPE);
if (subContentType != null && subContentType
.startsWith(MULTIPART_MIXED))
{
// Multiple files.
byte[] subBoundary =
subContentType.substring(
subContentType
.indexOf("boundary=") + 9).getBytes();
multi.setBoundary(subBoundary);
boolean nextSubPart = multi.skipPreamble();
while (nextSubPart)
{
headers = parseHeaders(multi.readHeaders());
if (getFileName(headers) != null)
{
FileItem item =
createItem(sizeThreshold, path,
headers, requestSize);
OutputStream os = item.getOutputStream();
try
{
multi.readBodyData(os);
}
finally
{
os.close();
}
item.setFieldName(getFieldName(headers));
items.add(item);
}
else
{
// Ignore anything but files inside
// multipart/mixed.
multi.discardBodyData();
}
nextSubPart = multi.readBoundary();
}
multi.setBoundary(boundary);
}
else
{
if (getFileName(headers) != null)
{
// A single file.
FileItem item = createItem(sizeThreshold,
path, headers,
requestSize);
OutputStream os = item.getOutputStream();
try
{
multi.readBodyData(os);
}
finally
{
os.close();
}
item.setFieldName(getFieldName(headers));
items.add(item);
}
else
{
// A form field.
FileItem item = createItem(sizeThreshold,
path, headers,
requestSize);
OutputStream os = item.getOutputStream();
try
{
multi.readBodyData(os);
}
finally
{
os.close();
}
item.setFieldName(getFieldName(headers));
item.setIsFormField(true);
items.add(item);
}
}
}
else
{
// Skip this part.
multi.discardBodyData();
}
nextPart = multi.readBoundary();
}
}
catch (IOException e)
{
throw new FileUploadException(
"Processing of " + MULTIPART_FORM_DATA +
" request failed. " + e.getMessage());
}
return items;
}
// ------------------------------------------------------ Protected
methods
/**
* Retrieves the file name from the <code>Content-disposition</code>
* header.
*
* @param headers A <code>Map</code> containing the HTTP request
headers.
*
* @return The file name for the current <code>encapsulation</code>.
*/
protected String getFileName(Map /* String, String */ headers)
{
String fileName = null;
String cd = getHeader(headers, CONTENT_DISPOSITION);
if (cd.startsWith(FORM_DATA) || cd.startsWith(ATTACHMENT))
{
int start = cd.indexOf("filename=\"");
int end = cd.indexOf('"', start + 10);
if (start != -1 && end != -1)
{
fileName = cd.substring(start + 10, end).trim();
}
}
return fileName;
}
/**
* Retrieves the field name from the <code>Content-disposition</code>
* header.
*
* @param headers A <code>Map</code> containing the HTTP request
headers.
*
* @return The field name for the current <code>encapsulation</code>.
*/
protected String getFieldName(Map /* String, String */ headers)
{
String fieldName = null;
String cd = getHeader(headers, CONTENT_DISPOSITION);
if (cd != null && cd.startsWith(FORM_DATA))
{
int start = cd.indexOf("name=\"");
int end = cd.indexOf('"', start + 6);
if (start != -1 && end != -1)
{
fieldName = cd.substring(start + 6, end);
}
}
return fieldName;
}
/**
* Creates a new [EMAIL PROTECTED] org.apache.commons.fileupload.FileItem}
instance.
*
* @param sizeThreshold The max size in bytes to be stored in memory.
* @param path The path for the FileItem.
* @param headers A <code>Map</code> containing the HTTP request
* headers.
* @param requestSize The total size of the request, in bytes.
*
* @return A newly created <code>FileItem</code> instance.
*
* @exception FileUploadException if an error occurs.
*/
protected FileItem createItem(int sizeThreshold,
String path,
Map /* String, String */ headers,
int requestSize)
throws FileUploadException
{
Method newInstanceMethod = getNewInstanceMethod();
Object[] args = new Object[] {
path, getFileName(headers), getHeader(headers,
CONTENT_TYPE),
new Integer(requestSize), new Integer(sizeThreshold) };
FileItem fileItem = null;
try
{
fileItem = (FileItem) newInstanceMethod.invoke(null, args);
}
catch (Exception e)
{
throw new FileUploadException(e.toString());
}
return fileItem;
}
/**
* <p> Returns the <code>Method</code> object to be used to obtain a new
* <code>FileItem</code> instance.
*
* <p> For performance reasons, we cache the method once it has been
* looked up, since method lookup is one of the more expensive aspects
* of reflection.
*
* @return The <code>newInstance()</code> method to be invoked.
*
* @exception FileUploadException if an error occurs.
*/
protected Method getNewInstanceMethod()
throws FileUploadException
{
// If the method is already cached, just return it.
if (this.newInstanceMethod != null)
{
return this.newInstanceMethod;
}
// Load the FileUpload implementation class.
ClassLoader classLoader =
Thread.currentThread().getContextClassLoader();
Class fileItemClass = null;
if (classLoader == null)
{
classLoader = getClass().getClassLoader();
}
try
{
fileItemClass = classLoader.loadClass(fileItemClassName);
}
catch (Exception e)
{
throw new FileUploadException(e.toString());
}
if (fileItemClass == null)
{
throw new FileUploadException(
"Failed to load FileItem class: " + fileItemClassName);
}
// Find the newInstance() method.
Class[] parameterTypes = new Class[] {
String.class, String.class, String.class,
Integer.TYPE, Integer.TYPE };
Method newInstanceMethod = MethodUtils.getAccessibleMethod(
fileItemClass, "newInstance", parameterTypes);
if (newInstanceMethod == null)
{
throw new FileUploadException(
"Failed find newInstance() method in FileItem class: "
+ fileItemClassName);
}
// Cache the method so that all this only happens once.
this.newInstanceMethod = newInstanceMethod;
return newInstanceMethod;
}
/**
* <p> Parses the <code>header-part</code> and returns as key/value
* pairs.
*
* <p> If there are multiple headers of the same names, the name
* will map to a comma-separated list containing the values.
*
* @param headerPart The <code>header-part</code> of the current
* <code>encapsulation</code>.
*
* @return A <code>Map</code> containing the parsed HTTP request
headers.
*/
protected Map /* String, String */ parseHeaders(String headerPart)
{
Map headers = new HashMap();
char buffer[] = new char[MAX_HEADER_SIZE];
boolean done = false;
int j = 0;
int i;
String header, headerName, headerValue;
try
{
while (!done)
{
i = 0;
// Copy a single line of characters into the buffer,
// omitting trailing CRLF.
while (i < 2 || buffer[i - 2] != '\r' || buffer[i - 1] !=
'\n')
{
buffer[i++] = headerPart.charAt(j++);
}
header = new String(buffer, 0, i - 2);
if (header.equals(""))
{
done = true;
}
else
{
if (header.indexOf(':') == -1)
{
// This header line is malformed, skip it.
continue;
}
headerName = header.substring(0, header.indexOf(':'))
.trim().toLowerCase();
headerValue =
header.substring(header.indexOf(':') + 1).trim();
if (getHeader(headers, headerName) != null)
{
// More that one heder of that name exists,
// append to the list.
headers.put(headerName,
getHeader(headers, headerName) + ',' +
headerValue);
}
else
{
headers.put(headerName, headerValue);
}
}
}
}
catch (IndexOutOfBoundsException e)
{
// Headers were malformed. continue with all that was
// parsed.
}
return headers;
}
/**
* Returns the header with the specified name from the supplied map. The
* header lookup is case-insensitive.
*
* @param headers A <code>Map</code> containing the HTTP request
headers.
* @param name The name of the header to return.
*
* @return The value of specified header, or a comma-separated list if
* there were multiple headers of that name.
*/
protected final String getHeader(Map /* String, String */ headers,
String name)
{
return (String) headers.get(name.toLowerCase());
}
}
upload exception:
/*
* $Header:
/home/cvs/jakarta-commons/fileupload/src/java/org/apache/commons/fileupload/
FileUploadException.java,v 1.6 2002/10/26 22:08:17 sullis Exp $
* $Revision: 1.6 $
* $Date: 2002/10/26 22:08:17 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.fileupload;
/**
* Exception for errors encountered while processing the request.
*
* @author <a href="mailto:[EMAIL PROTECTED]">John McNally</a>
* @version $Id: FileUploadException.java,v 1.6 2002/10/26 22:08:17 sullis
Exp $
*/
public class FileUploadException
extends Exception
{
/**
* Constructs a new <code>FileUploadException</code> without message.
*/
public FileUploadException()
{
}
/**
* Constructs a new <code>FileUploadException</code> with specified
detail
* message.
*
* @param msg the error message.
*/
public FileUploadException(String msg)
{
super(msg);
}
}
outra classe:
/*
* $Header:
/home/cvs/jakarta-commons/fileupload/src/java/org/apache/commons/fileupload/
MultipartStream.java,v 1.9 2002/11/26 04:13:50 jericho Exp $
* $Revision: 1.9 $
* $Date: 2002/11/26 04:13:50 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.fileupload;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.ByteArrayOutputStream;
/**
* <p> Low level API for processing file uploads.
*
* <p> This class can be used to process data streams conforming to MIME
* 'multipart' format as defined in
* <a href="http://www.ietf.org/rfc/rfc1867.txt";>RFC 1867</a>. Arbitrarily
* large amounts of data in the stream can be processed under constant
* memory usage.
*
* <p> The format of the stream is defined in the following way:<br>
*
* <code>
* multipart-body := preamble 1*encapsulation close-delimiter epilogue<br>
* encapsulation := delimiter body CRLF<br>
* delimiter := "--" boundary CRLF<br>
* close-delimiter := "--" boudary "--"<br>
* preamble := <ignore><br>
* epilogue := <ignore><br>
* body := header-part CRLF body-part<br>
* header-part := 1*header CRLF<br>
* header := header-name ":" header-value<br>
* header-name := <printable ascii characters except ":"><br>
* header-value := <any ascii characters except CR & LF><br>
* body-data := <arbitrary data><br>
* </code>
*
* <p>Note that body-data can contain another mulipart entity. There
* is limited support for single pass processing of such nested
* streams. The nested stream is <strong>required</strong> to have a
* boundary token of the same length as the parent stream (see [EMAIL PROTECTED]
* #setBoundary(byte[])}).
*
* <p>Here is an exaple of usage of this class.<br>
*
* <pre>
* try {
* MultipartStream multipartStream = new MultipartStream(input,
* boundary);
* boolean nextPart = malitPartStream.skipPreamble();
* OutputStream output;
* while(nextPart) {
* header = chunks.readHeader();
* // process headers
* // create some output stream
* multipartStream.readBodyPart(output);
* nextPart = multipartStream.readBoundary();
* }
* } catch(MultipartStream.MalformedStreamException e) {
* // the stream failed to follow required syntax
* } catch(IOException) {
* // a read or write error occurred
* }
*
* </pre>
*
* @author <a href="mailto:[EMAIL PROTECTED]">Rafal Krzewski</a>
* @author <a href="mailto:[EMAIL PROTECTED]">Martin Cooper</a>
*
* @version $Id: MultipartStream.java,v 1.9 2002/11/26 04:13:50 jericho Exp
$
*/
public class MultipartStream
{
// ----------------------------------------------------- Manifest
constants
/**
* The maximum length of <code>header-part</code> that will be
* processed (10 kilobytes = 10240 bytes.).
*/
public static final int HEADER_PART_SIZE_MAX = 10240;
/**
* The default length of the buffer used for processing a request.
*/
protected static final int DEFAULT_BUFSIZE = 4096;
/**
* A byte sequence that marks the end of <code>header-part</code>
* (<code>CRLFCRLF</code>).
*/
protected static final byte[] HEADER_SEPARATOR = {0x0D, 0x0A, 0x0D,
0x0A};
/**
* A byte sequence that that follows a delimiter that will be
* followed by an encapsulation (<code>CRLF</code>).
*/
protected static final byte[] FIELD_SEPARATOR = { 0x0D, 0x0A };
/**
* A byte sequence that that follows a delimiter of the last
* encapsulation in the stream (<code>--</code>).
*/
protected static final byte[] STREAM_TERMINATOR = { 0x2D, 0x2D };
// ----------------------------------------------------------- Data
members
/**
* The input stream from which data is read.
*/
private InputStream input;
/**
* The length of the boundary token plus the leading
<code>CRLF--</code>.
*/
private int boundaryLength;
/**
* The amount of data, in bytes, that must be kept in the buffer in
order
* to detect delimiters reliably.
*/
private int keepRegion;
/**
* The byte sequence that partitions the stream.
*/
private byte[] boundary;
/**
* The length of the buffer used for processing the request.
*/
private int bufSize;
/**
* The buffer used for processing the request.
*/
private byte[] buffer;
/**
* The index of first valid character in the buffer.
* <br>
* 0 <= head < bufSize
*/
private int head;
/**
* The index of last valid characer in the buffer + 1.
* <br>
* 0 <= tail <= bufSize
*/
private int tail;
// -----------------------------------------------------------
Constructors
/**
* Default constructor.
*/
public MultipartStream()
{
}
/**
* <p> Constructs a <code>MultipartStream</code> with a custom size
buffer.
*
* <p> Note that the buffer must be at least big enough to contain the
* boundary string, plus 4 characters for CR/LF and double dash, plus at
* least one byte of data. Too small a buffer size setting will degrade
* performance.
*
* @param input The <code>InputStream</code> to serve as a data
source.
* @param boundary The token used for dividing the stream into
* <code>encapsulations</code>.
* @param bufSize The size of the buffer to be used, in bytes.
*/
public MultipartStream(InputStream input,
byte[] boundary,
int bufSize)
{
this.input = input;
this.bufSize = bufSize;
this.buffer = new byte[bufSize];
// We prepend CR/LF to the boundary to chop trailng CR/LF from
// body-data tokens.
this.boundary = new byte[boundary.length + 4];
this.boundaryLength = boundary.length + 4;
this.keepRegion = boundary.length + 3;
this.boundary[0] = 0x0D;
this.boundary[1] = 0x0A;
this.boundary[2] = 0x2D;
this.boundary[3] = 0x2D;
System.arraycopy(boundary, 0, this.boundary, 4, boundary.length);
head = 0;
tail = 0;
}
/**
* <p> Constructs a <code>MultipartStream</code> with a default size
buffer.
*
* @param input The <code>InputStream</code> to serve as a data
source.
* @param boundary The token used for dividing the stream into
* <code>encapsulations</code>.
*
* @exception IOException when an error occurs.
*/
public MultipartStream(InputStream input,
byte[] boundary)
throws IOException
{
this(input, boundary, DEFAULT_BUFSIZE);
}
// --------------------------------------------------------- Public
methods
/**
* Reads a byte from the <code>buffer</code>, and refills it as
* necessary.
*
* @return The next byte from the input stream.
*
* @exception IOException if there is no more data available.
*/
public byte readByte()
throws IOException
{
// Buffer depleted ?
if (head == tail)
{
head = 0;
// Refill.
tail = input.read(buffer, head, bufSize);
if (tail == -1)
{
// No more data available.
throw new IOException("No more data is available");
}
}
return buffer[head++];
}
/**
* Skips a <code>boundary</code> token, and checks whether more
* <code>encapsulations</code> are contained in the stream.
*
* @return <code>true</code> if there are more encapsulations in
* this stream; <code>false</code> otherwise.
*
* @exception MalformedStreamException if the stream ends unexpecetedly
or
* fails to follow required syntax.
*/
public boolean readBoundary()
throws MalformedStreamException
{
byte[] marker = new byte[2];
boolean nextChunk = false;
head += boundaryLength;
try
{
marker[0] = readByte();
marker[1] = readByte();
if (arrayequals(marker, STREAM_TERMINATOR, 2))
{
nextChunk = false;
}
else if (arrayequals(marker, FIELD_SEPARATOR, 2))
{
nextChunk = true;
}
else
{
throw new MalformedStreamException(
"Unexpected characters follow a boundary");
}
}
catch (IOException e)
{
throw new MalformedStreamException("Stream ended unexpectedly");
}
return nextChunk;
}
/**
* <p>Changes the boundary token used for partitioning the stream.
*
* <p>This method allows single pass processing of nested multipart
* streams.
*
* <p>The boundary token of the nested stream is <code>required</code>
* to be of the same length as the boundary token in parent stream.
*
* <p>Restoring the parent stream boundary token after processing of a
* nested stream is left to the application.
*
* @param boundary The boundary to be used for parsing of the nested
* stream.
*
* @exception IllegalBoundaryException if the <code>boundary</code>
* has a different length than the
one
* being currently parsed.
*/
public void setBoundary(byte[] boundary)
throws IllegalBoundaryException
{
if (boundary.length != boundaryLength - 4)
{
throw new IllegalBoundaryException(
"The length of a boundary token can not be changed");
}
System.arraycopy(boundary, 0, this.boundary, 4, boundary.length);
}
/**
* <p>Reads the <code>header-part</code> of the current
* <code>encapsulation</code>.
*
* <p>Headers are returned verbatim to the input stream, including the
* trailing <code>CRLF</code> marker. Parsing is left to the
* application.
*
* <p><strong>TODO</strong> allow limiting maximum header size to
* protect against abuse.
*
* @return The <code>header-part</code> of the current encapsulation.
*
* @exception MalformedStreamException if the stream ends unexpecetedly.
*/
public String readHeaders()
throws MalformedStreamException
{
int i = 0;
byte b[] = new byte[1];
// to support multi-byte characters
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int sizeMax = HEADER_PART_SIZE_MAX;
int size = 0;
while (i < 4)
{
try
{
b[0] = readByte();
}
catch (IOException e)
{
throw new MalformedStreamException("Stream ended
unexpectedly");
}
size++;
if (b[0] == HEADER_SEPARATOR[i])
{
i++;
}
else
{
i = 0;
}
if (size <= sizeMax)
{
baos.write(b[0]);
}
}
return baos.toString();
}
/**
* <p>Reads <code>body-data</code> from the current
* <code>encapsulation</code> and writes its contents into the
* output <code>Stream</code>.
*
* <p>Arbitrary large amounts of data can be processed by this
* method using a constant size buffer. (see [EMAIL PROTECTED]
* #MultipartStream(InputStream,byte[],int) constructor}).
*
* @param output The <code>Stream</code> to write data into.
*
* @return the amount of data written.
*
* @exception MalformedStreamException if the stream ends unexpectedly.
* @exception IOException if an i/o error occurs.
*/
public int readBodyData(OutputStream output)
throws MalformedStreamException,
IOException
{
boolean done = false;
int pad;
int pos;
int bytesRead;
int total = 0;
while (!done)
{
// Is boundary token present somewere in the buffer?
pos = findSeparator();
if (pos != -1)
{
// Write the rest of the data before the boundary.
output.write(buffer, head, pos - head);
total += pos - head;
head = pos;
done = true;
}
else
{
// Determine how much data should be kept in the
// buffer.
if (tail - head > keepRegion)
{
pad = keepRegion;
}
else
{
pad = tail - head;
}
// Write out the data belonging to the body-data.
output.write(buffer, head, tail - head - pad);
// Move the data to the beging of the buffer.
total += tail - head - pad;
System.arraycopy(buffer, tail - pad, buffer, 0, pad);
// Refill buffer with new data.
head = 0;
bytesRead = input.read(buffer, pad, bufSize - pad);
// [pprrrrrrr]
if (bytesRead != -1)
{
tail = pad + bytesRead;
}
else
{
// The last pad amount is left in the buffer.
// Boundary can't be in there so write out the
// data you have and signal an error condition.
output.write(buffer, 0, pad);
output.flush();
total += pad;
throw new MalformedStreamException(
"Stream ended unexpectedly");
}
}
}
output.flush();
return total;
}
/**
* <p> Reads <code>body-data</code> from the current
* <code>encapsulation</code> and discards it.
*
* <p>Use this method to skip encapsulations you don't need or don't
* understand.
*
* @return The amount of data discarded.
*
* @exception MalformedStreamException if the stream ends unexpectedly.
* @exception IOException if an i/o error occurs.
*/
public int discardBodyData()
throws MalformedStreamException,
IOException
{
boolean done = false;
int pad;
int pos;
int bytesRead;
int total = 0;
while (!done)
{
// Is boundary token present somewere in the buffer?
pos = findSeparator();
if (pos != -1)
{
// Write the rest of the data before the boundary.
total += pos - head;
head = pos;
done = true;
}
else
{
// Determine how much data should be kept in the
// buffer.
if (tail - head > keepRegion)
{
pad = keepRegion;
}
else
{
pad = tail - head;
}
total += tail - head - pad;
// Move the data to the beging of the buffer.
System.arraycopy(buffer, tail - pad, buffer, 0, pad);
// Refill buffer with new data.
head = 0;
bytesRead = input.read(buffer, pad, bufSize - pad);
// [pprrrrrrr]
if (bytesRead != -1)
{
tail = pad + bytesRead;
}
else
{
// The last pad amount is left in the buffer.
// Boundary can't be in there so signal an error
// condition.
total += pad;
throw new MalformedStreamException(
"Stream ended unexpectedly");
}
}
}
return total;
}
/**
* Finds the beginning of the first <code>encapsulation</code>.
*
* @return <code>true</code> if an <code>encapsulation</code> was found
in
* the stream.
*
* @exception IOException if an i/o error occurs.
*/
public boolean skipPreamble()
throws IOException
{
// First delimiter may be not preceeded with a CRLF.
System.arraycopy(boundary, 2, boundary, 0, boundary.length - 2);
boundaryLength = boundary.length - 2;
try
{
// Discard all data up to the delimiter.
discardBodyData();
// Read boundary - if succeded, the stream contains an
// encapsulation.
return readBoundary();
}
catch (MalformedStreamException e)
{
return false;
}
finally
{
// Restore delimiter.
System.arraycopy(boundary, 0, boundary, 2, boundary.length - 2);
boundaryLength = boundary.length;
boundary[0] = 0x0D;
boundary[1] = 0x0A;
}
}
/**
* Compares <code>count</code> first bytes in the arrays
* <code>a</code> and <code>b</code>.
*
* @param a The first array to compare.
* @param b The second array to compare.
* @param count How many bytes should be compared.
*
* @return <code>true</code> if <code>count</code> first bytes in arrays
* <code>a</code> and <code>b</code> are equal.
*/
public static boolean arrayequals(byte[] a,
byte[] b,
int count)
{
for (int i = 0; i < count; i++)
{
if (a[i] != b[i])
{
return false;
}
}
return true;
}
/**
* Searches for a byte of specified value in the <code>buffer</code>,
* starting at the specified <code>position</code>.
*
* @param value The value to find.
* @param pos The starting position for searching.
*
* @return The position of byte found, counting from beginning of the
* <code>buffer</code>, or <code>-1</code> if not found.
*/
protected int findByte(byte value,
int pos)
{
for (int i = pos; i < tail; i++)
{
if (buffer[i] == value)
{
return i;
}
}
return -1;
}
/**
* Searches for the <code>boundary</code> in the <code>buffer</code>
* region delimited by <code>head</code> and <code>tail</code>.
*
* @return The position of the boundary found, counting from the
* beginning of the <code>buffer</code>, or <code>-1</code> if
* not found.
*/
protected int findSeparator()
{
int first;
int match = 0;
int maxpos = tail - boundaryLength;
for (first = head;
(first <= maxpos) && (match != boundaryLength);
first++)
{
first = findByte(boundary[0], first);
if (first == -1 || (first > maxpos))
{
return -1;
}
for (match = 1; match < boundaryLength; match++)
{
if (buffer[first + match] != boundary[match])
{
break;
}
}
}
if (match == boundaryLength)
{
return first - 1;
}
return -1;
}
/**
* Thrown to indicate that the input stream fails to follow the
* required syntax.
*/
public class MalformedStreamException
extends IOException
{
/**
* Constructs a <code>MalformedStreamException</code> with no
* detail message.
*/
public MalformedStreamException()
{
super();
}
/**
* Constructs an <code>MalformedStreamException</code> with
* the specified detail message.
*
* @param message The detail message.
*/
public MalformedStreamException(String message)
{
super(message);
}
}
/**
* Thrown upon attempt of setting an invalid boundary token.
*/
public class IllegalBoundaryException
extends IOException
{
/**
* Constructs an <code>IllegalBoundaryException</code> with no
* detail message.
*/
public IllegalBoundaryException()
{
super();
}
/**
* Constructs an <code>IllegalBoundaryException</code> with
* the specified detail message.
*
* @param message The detail message.
*/
public IllegalBoundaryException(String message)
{
super(message);
}
}
// ------------------------------------------------------ Debugging
methods
// These are the methods that were used to debug this stuff.
/*
// Dump data.
protected void dump()
{
System.out.println("01234567890");
byte[] temp = new byte[buffer.length];
for(int i=0; i<buffer.length; i++)
{
if (buffer[i] == 0x0D || buffer[i] == 0x0A)
{
temp[i] = 0x21;
}
else
{
temp[i] = buffer[i];
}
}
System.out.println(new String(temp));
int i;
for (i=0; i<head; i++)
System.out.print(" ");
System.out.println("h");
for (i=0; i<tail; i++)
System.out.print(" ");
System.out.println("t");
System.out.flush();
}
// Main routine, for testing purposes only.
//
// @param args A String[] with the command line arguments.
// @exception Exception, a generic exception.
public static void main( String[] args )
throws Exception
{
File boundaryFile = new File("boundary.dat");
int boundarySize = (int)boundaryFile.length();
byte[] boundary = new byte[boundarySize];
FileInputStream input = new FileInputStream(boundaryFile);
input.read(boundary,0,boundarySize);
input = new FileInputStream("multipart.dat");
MultipartStream chunks = new MultipartStream(input, boundary);
int i = 0;
String header;
OutputStream output;
boolean nextChunk = chunks.skipPreamble();
while (nextChunk)
{
header = chunks.readHeaders();
System.out.println("!"+header+"!");
System.out.println("wrote part"+i+".dat");
output = new FileOutputStream("part"+(i++)+".dat");
chunks.readBodyData(output);
nextChunk = chunks.readBoundary();
}
}
*/
}
Atenciosamente aguardando
Salvação
Conrad Peres.
----- Original Message -----
From: "SILVIO AMERICO GARCIA CICOTI" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 27, 2003 8:14 AM
Subject: RES: [java-list] to be EJB or not to be
Cara...veja se você não esta "matando uma mosca com um canhão" !
Silvio.
-----Mensagem original-----
De: Daniel Bondance [mailto:[EMAIL PROTECTED]
Enviada em: Wednesday, June 25, 2003 5:32 PM
Para: '[EMAIL PROTECTED]'
Assunto: RES: [java-list] to be EJB or not to be
Para diser a verdade, uma boa dica é: utilize EJB´s sim.
Claro que aos pôcapráticas com ele vai ser mais trabalhoso, mas depois que
engrenar é muito útil e tranquilo. Uso há um tempo e não tem havido problema
nenhum.
danielbondance
[EMAIL PROTECTED]
highdesigners.com
consultoria e desenvolvimento
de softwares
-----Mensagem original-----
De: leonardo bruno [mailto:[EMAIL PROTECTED]
Enviada em: terça-feira, 24 de junho de 2003 14:23
Para: [EMAIL PROTECTED]
Assunto: Re: [java-list] to be EJB or not to be
Pelo amor de Deus,
eu desenvolvo, utilizando toda a plataforma J2EE, agora esse papo de que os
EJB's nao sao bons!!!!
é brincadeira, vcs deveriam ver que a partir da Especificacao 2.1 , melhorou
muita coisa , eu por exemplo desenvolvo um Sistema de porte grande e para
mim na minha opiniao os EJB's me dao total suporte para a minha
impementacao!!!!
Caro Joao , essa sua pergunta vai gerar muita polemica, pois os que conhecem
bem a tecnologia irao te dizer que ela é muito boa e os que nao conhecem te
diram que é melhor usar os servlets e os JSP's, eu particularmente utilizo
toda a plataforma J2EE
Sem mais
leo
>From: Agnaldo de Oliveira <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: [java-list] to be EJB or not to be
>Date: Mon, 23 Jun 2003 08:38:37 -0300
>
>Caro Joao Pedro, nossa experiencia diz que vc so deve usar EJB, quando
>todas as suas opcoes em servlets, beans, se esgotarem, pois o tempo de
>desenvolvimento e muito grande para desenvolver com EJB, ou seja vc caso
>precise controlar tranzacoes em bancos de dados distribuidos, ou
>diferentes, ou interagir com aplicacoes diferentes. ok.
>
>obs: meu linux ta com pau na acentuacao me desculpe.
>
>t mais...
>
>Agnaldo de Oliveira
>
>linux wrote:
>
>>Caros Amigos,
>>
>>Em um projeto que estou envolvido estamos em um ponto de decisao sobre
>>adotar ou nao EJBs.
>>
>>Como nosso projeto tem um publico pequeno menos de 100 pessoas, visa
>>performance, utilizacao otimizada dos recuros de hardware (que sao
>>poucos) devo apontar as vantagens e desvantagens de se utilizar EJBs.
>>
>>Entao gostaria de fazer uma pergunta, levando-se em conta que:
>>
>>1) A performance eh fundamental, pois a massa de dados manipulada eh
>>imensa.
>>2) Nao havera processamento distribuido pois temos apenas
>>uma maquina HP-UX 32 proc.
>>3) O tempo de desenvolvimento do projeto eh muito curto.
>>4) O numero de usuarios eh bem pequeno.
>>
>>Quais vantagens e desvantagens voces vem em se utilizar EJBs?
>>
>>Gostaria imensamente de saber as opinioes e experiencias de voces.
>>
>>Muito obrigado
>>
>>Joao Pedro
>>
>>
>>
>>------------------------------ LISTA SOUJAVA
>>----------------------------
>>http://www.soujava.org.br - Sociedade de Usuários Java da Sucesu-SP
>>dúvidas mais comuns: http://www.soujava.org.br/faq.htm
>>regras da lista: http://www.soujava.org.br/regras.htm
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>http://www.soujava.org.br - Sociedade de Usuários Java da Sucesu-SP
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------------------------------ LISTA SOUJAVA ----------------------------
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