com.oreilly.servlet.multipart

类 LimitedServletInputStream

java.lang.Object

java.io.InputStream

javax.servlet.ServletInputStream

com.oreilly.servlet.multipart.LimitedServletInputStream

所有已实现的接口:

Closeable, AutoCloseable

public class LimitedServletInputStream
extends javax.servlet.ServletInputStream

A LimitedServletInputStream wraps another ServletInputStream in order to keep track of how many bytes have been read and detect when the Content-Length limit has been reached. This is necessary since some servlet containers are slow to notice the end of stream and cause the client code to hang if it tries to read past it.

版本:

1.0, 2000/10/27, initial revision

作者:

Jason Hunter, Geoff Soutter

构造器概要

构造器

构造器和说明
LimitedServletInputStream(javax.servlet.ServletInputStream in, long totalExpected) Creates a LimitedServletInputStream with the specified length limit that wraps the provided ServletInputStream.

方法概要

限定符和类型	方法和说明
boolean	isFinished()
boolean	isReady()
int	read() Implement length limitation on top of the read method of the wrapped ServletInputStream.
int	read(byte[] b, int off, int len) Implement length limitation on top of the read method of the wrapped ServletInputStream.
int	readLine(byte[] b, int off, int len) Implement length limitation on top of the readLine method of the wrapped ServletInputStream.
void	setReadListener(javax.servlet.ReadListener readListener)

从类继承的方法 java.io.InputStream

available, close, mark, markSupported, read, reset, skip

从类继承的方法 java.lang.Object

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

构造器详细资料

LimitedServletInputStream

public LimitedServletInputStream(javax.servlet.ServletInputStream in,
                                 long totalExpected)

Creates a LimitedServletInputStream with the specified length limit that wraps the provided ServletInputStream.

方法详细资料

readLine

public int readLine(byte[] b,
                    int off,
                    int len)
             throws IOException

Implement length limitation on top of the readLine method of the wrapped ServletInputStream.

覆盖:

readLine 在类中 javax.servlet.ServletInputStream

参数:

b - an array of bytes into which data is read.

off - an integer specifying the character at which this method begins reading.

len - an integer specifying the maximum number of bytes to read.

返回:

an integer specifying the actual number of bytes read, or -1 if the end of the stream is reached.

抛出:

IOException - if an I/O error occurs.

read

public int read()
         throws IOException

Implement length limitation on top of the read method of the wrapped ServletInputStream.

指定者:

read 在类中 InputStream

返回:

the next byte of data, or -1 if the end of the stream is reached.

抛出:

IOException - if an I/O error occurs.

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Implement length limitation on top of the read method of the wrapped ServletInputStream.

覆盖:

read 在类中 InputStream

参数:

b - destination buffer.

off - offset at which to start storing bytes.

len - maximum number of bytes to read.

返回:

the number of bytes read, or -1 if the end of the stream has been reached.

抛出:

IOException - if an I/O error occurs.

isFinished

public boolean isFinished()

指定者:

isFinished 在类中 javax.servlet.ServletInputStream

isReady

public boolean isReady()

指定者:

isReady 在类中 javax.servlet.ServletInputStream

setReadListener

public void setReadListener(javax.servlet.ReadListener readListener)

指定者:

setReadListener 在类中 javax.servlet.ServletInputStream