| java.lang.Object
 java.io.InputStream
javax.servlet.ServletInputStream
| ServletInputStream | | abstract public class ServletInputStream extends InputStream (Code) | | Provides an input stream for reading binary data from a client
request, including an efficient readLine method
for reading data one line at a time. With some protocols, such
as HTTP POST and PUT, a ServletInputStream
object can be used to read data sent from the client.
A ServletInputStream object is normally retrieved via
the
ServletRequest.getInputStream method.
This is an abstract class that a servlet container implements.
Subclasses of this class
must implement the java.io.InputStream.read() method.
author:
Various
version:
$Version$
See Also: ServletRequest
See Also: |
| Constructor Summary | |
| protected | ServletInputStream()
Does nothing, because this is an abstract class. |
| Method Summary | |
| public int | readLine(byte[] b, int off, int len)
Reads the input stream, one line at a time. |
| ServletInputStream | | protected ServletInputStream()(Code) | | Does nothing, because this is an abstract class.
|
| readLine | | public int readLine(byte[] b, int off, int len) throws IOException(Code) | | Reads the input stream, one line at a time. Starting at an
offset, reads bytes into an array, until it reads a certain number
of bytes or reaches a newline character, which it reads into the
array as well.
This method returns -1 if it reaches the end of the input
stream before reading the maximum number of bytes.
Parameters:
b - an array of bytes into which data is read
Parameters:
off - an integer specifying the character at whichthis method begins reading
Parameters:
len - an integer specifying the maximum number of bytes to read an integer specifying the actual number of bytes read, or -1 if the end of the stream is reached
exception:
IOException - if an input or output exception has occurred |
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