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java.lang.Object | +----java.io.InputStream | +----javax.servlet.ServletInputStream
protected ServletInputStream()
public int readLine(byte buffer[], int offset, int length) throws IOException
offset
into the buffer and attempts to read until a
end of line ('\n') is encountered or length
bytes are
read.
This method can return before reading the number of bytes requested.
The actual number of bytes read is returned as an int.
A -1 is returned to indicate the end of the stream.
This method will block until some data can be read.
This method operates by calling the single byte read()
method in a loop until the desired number of bytes are read.
The read loop stops short if the end of the stream is encountered
or if an IOException is encountered on any read operation except
the first. If the first attempt to read a bytes fails, the
IOException is allowed to propagate upward. And subsequent
IOException is caught and treated identically to an end of stream
condition. Subclasses can (and should if possible)
override this method to provide a more efficient implementation.
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