cn.hutool.core.net.multipart

Class MultipartRequestInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.BufferedInputStream

cn.hutool.core.net.multipart.MultipartRequestInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class MultipartRequestInputStream
extends BufferedInputStream

Http请求解析流，提供了专门针对带文件的form表单的解析
来自Jodd

Author:

jodd.org

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	boundary part部分边界
protected UploadFileHeader	lastHeader

Fields inherited from class java.io.BufferedInputStream

buf, count, marklimit, markpos, pos

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
MultipartRequestInputStream(InputStream in)

Method Summary

Modifier and Type	Method and Description
long	copy(OutputStream out) 字节流复制到out，直到下一个boundary
long	copy(OutputStream out, long limit) 复制字节流到out， 大于maxBytes或者文件末尾停止
UploadFileHeader	getLastHeader()
boolean	isBoundary(byte b)
byte[]	readBoundary() 输入流中读取边界
byte	readByte() 读取byte字节流，在末尾抛出异常
UploadFileHeader	readDataHeader(Charset encoding) 从流中读取文件头部信息， 如果达到末尾则返回null
protected String	readDataHeaderString(Charset charset) 读取数据头信息字符串
String	readString(Charset charset) 读取字节流，直到下一个boundary
void	skipBytes(long i) 跳过指定位数的 bytes.
long	skipToBoundary() 跳过边界表示

Methods inherited from class java.io.BufferedInputStream

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

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

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

Field Detail

boundary

protected byte[] boundary

part部分边界

lastHeader

protected UploadFileHeader lastHeader

Constructor Detail

MultipartRequestInputStream

public MultipartRequestInputStream(InputStream in)

Method Detail

readByte

public byte readByte()
              throws IOException

读取byte字节流，在末尾抛出异常

Returns:

byte

Throws:

IOException - 读取异常

skipBytes

public void skipBytes(long i)
               throws IOException

跳过指定位数的 bytes.

Parameters:

i - 跳过的byte数

Throws:

IOException - IO异常

readBoundary

public byte[] readBoundary()
                    throws IOException

输入流中读取边界

Returns:

边界

Throws:

IOException - 读取异常

getLastHeader

public UploadFileHeader getLastHeader()

readDataHeader

public UploadFileHeader readDataHeader(Charset encoding)
                                throws IOException

从流中读取文件头部信息， 如果达到末尾则返回null

Parameters:

encoding - 字符集

Returns:

头部信息， 如果达到末尾则返回null

Throws:

IOException - 读取异常

readDataHeaderString

protected String readDataHeaderString(Charset charset)
                               throws IOException

读取数据头信息字符串

Parameters:

charset - 编码

Returns:

数据头信息字符串

Throws:

IOException - IO异常

readString

public String readString(Charset charset)
                  throws IOException

读取字节流，直到下一个boundary

Parameters:

charset - 编码，null表示系统默认编码

Returns:

读取的字符串

Throws:

IOException - 读取异常

copy

public long copy(OutputStream out)
          throws IOException

字节流复制到out，直到下一个boundary

Parameters:

out - 输出流

Returns:

复制的字节数

Throws:

IOException - 读取异常

copy

public long copy(OutputStream out,
                 long limit)
          throws IOException

复制字节流到out， 大于maxBytes或者文件末尾停止

Parameters:

out - 输出流

limit - 最大字节数

Returns:

复制的字节数

Throws:

IOException - 读取异常

skipToBoundary

public long skipToBoundary()
                    throws IOException

跳过边界表示

Returns:

跳过的字节数

Throws:

IOException - 读取异常

isBoundary

public boolean isBoundary(byte b)
                   throws IOException

Parameters:

b - byte

Returns:

是否为边界的标志

Throws:

IOException - 读取异常