FileURLConnection (JBoss/Common API) - JBoss 3.2.7 common API Documentation 英文版文档

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org.jboss.net.protocol.file
Class FileURLConnection

java.lang.Object
  java.net.URLConnection
      org.jboss.net.protocol.file.FileURLConnection

public class FileURLConnection
extends URLConnection

Provides local file access via URL semantics, correctly returning the last modified time of the underlying file.

Version:: $Revision: 1.7.2.3 $
Author:: Jason Dillon, Scott.Stark@jboss.org

Field Summary

protected File file


Fields inherited from class java.net.URLConnection

allowUserInteraction, connected, doInput, doOutput, ifModifiedSince, url, useCaches

Constructor Summary

FileURLConnection(URL url)


Method Summary

void connect()
          Checks if the underlying file for this connection exists.

File getFile()
          Returns the underlying file for this connection.

String getHeaderField(String name)
          Provides support for returning the value for the last-modified header.

InputStream getInputStream()


long getLastModified()
          Returns the last modified time of the underlying file.

OutputStream getOutputStream()


Permission getPermission()
          Return a permission for reading of the file

Methods inherited from class java.net.URLConnection

addRequestProperty, getAllowUserInteraction, getContent, getContent, getContentEncoding, getContentLength, getContentType, getDate, getDefaultAllowUserInteraction, getDefaultRequestProperty, getDefaultUseCaches, getDoInput, getDoOutput, getExpiration, getFileNameMap, getHeaderField, getHeaderFieldDate, getHeaderFieldInt, getHeaderFieldKey, getHeaderFields, getIfModifiedSince, getRequestProperties, getRequestProperty, getURL, getUseCaches, guessContentTypeFromName, guessContentTypeFromStream, setAllowUserInteraction, setContentHandlerFactory, setDefaultAllowUserInteraction, setDefaultRequestProperty, setDefaultUseCaches, setDoInput, setDoOutput, setFileNameMap, setIfModifiedSince, setRequestProperty, setUseCaches, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

file

protected File file

Constructor Detail

FileURLConnection

public FileURLConnection(URL url)
                  throws MalformedURLException,
                         IOException

Method Detail

getFile

public File getFile()

Returns the underlying file for this connection.

connect

public void connect()
             throws IOException

Checks if the underlying file for this connection exists.

Throws:: FileNotFoundException; IOException

getInputStream

public InputStream getInputStream()
                           throws IOException

Throws:: IOException

getOutputStream

public OutputStream getOutputStream()
                             throws IOException

Throws:: IOException

getHeaderField

public String getHeaderField(String name)

Provides support for returning the value for the last-modified header.

getPermission

public Permission getPermission()
                         throws IOException

Return a permission for reading of the file

Throws:: IOException

getLastModified

public long getLastModified()

Returns the last modified time of the underlying file.