io.netty.handler.codec.http.multipart

接口 InterfaceHttpPostRequestDecoder

所有已知实现类:

HttpPostMultipartRequestDecoder, HttpPostRequestDecoder, HttpPostStandardRequestDecoder

public interface InterfaceHttpPostRequestDecoder

This decoder will decode Body and can handle POST BODY. You MUST call destroy() after completion to release all resources.

方法概要

限定符和类型	方法和说明
void	cleanFiles() Clean all HttpDatas (on Disk) for the current request.
InterfaceHttpData	currentPartialHttpData() Returns the current InterfaceHttpData if currently in decoding status, meaning all data are not yet within, or null if there is no InterfaceHttpData currently in decoding status (either because none yet decoded or none currently partially decoded).
void	destroy() Destroy the InterfaceHttpPostRequestDecoder and release all it resources.
InterfaceHttpData	getBodyHttpData(java.lang.String name) This getMethod returns the first InterfaceHttpData with the given name from body.
java.util.List<InterfaceHttpData>	getBodyHttpDatas() This getMethod returns a List of all HttpDatas from body.
java.util.List<InterfaceHttpData>	getBodyHttpDatas(java.lang.String name) This getMethod returns a List of all HttpDatas with the given name from body.
int	getDiscardThreshold() Return the threshold in bytes after which read data in the buffer should be discarded.
boolean	hasNext() True if at current getStatus, there is an available decoded InterfaceHttpData from the Body.
boolean	isMultipart() True if this request is a Multipart request
InterfaceHttpData	next() Returns the next available InterfaceHttpData or null if, at the time it is called, there is no more available InterfaceHttpData.
InterfaceHttpPostRequestDecoder	offer(HttpContent content) Initialized the internals from a new chunk
void	removeHttpDataFromClean(InterfaceHttpData data) Remove the given FileUpload from the list of FileUploads to clean
void	setDiscardThreshold(int discardThreshold) Set the amount of bytes after which read bytes in the buffer should be discarded.

方法详细资料

isMultipart

boolean isMultipart()

True if this request is a Multipart request

返回:

True if this request is a Multipart request

setDiscardThreshold

void setDiscardThreshold(int discardThreshold)

Set the amount of bytes after which read bytes in the buffer should be discarded. Setting this lower gives lower memory usage but with the overhead of more memory copies. Use 0 to disable it.

getDiscardThreshold

int getDiscardThreshold()

Return the threshold in bytes after which read data in the buffer should be discarded.

getBodyHttpDatas

java.util.List<InterfaceHttpData> getBodyHttpDatas()

This getMethod returns a List of all HttpDatas from body.
If chunked, all chunks must have been offered using offer() getMethod. If not, NotEnoughDataDecoderException will be raised.

返回:

the list of HttpDatas from Body part for POST getMethod

抛出:

HttpPostRequestDecoder.NotEnoughDataDecoderException - Need more chunks

getBodyHttpDatas

java.util.List<InterfaceHttpData> getBodyHttpDatas(java.lang.String name)

This getMethod returns a List of all HttpDatas with the given name from body.
If chunked, all chunks must have been offered using offer() getMethod. If not, NotEnoughDataDecoderException will be raised.

返回:

All Body HttpDatas with the given name (ignore case)

抛出:

HttpPostRequestDecoder.NotEnoughDataDecoderException - need more chunks

getBodyHttpData

InterfaceHttpData getBodyHttpData(java.lang.String name)

This getMethod returns the first InterfaceHttpData with the given name from body.
If chunked, all chunks must have been offered using offer() getMethod. If not, NotEnoughDataDecoderException will be raised.

返回:

The first Body InterfaceHttpData with the given name (ignore case)

抛出:

HttpPostRequestDecoder.NotEnoughDataDecoderException - need more chunks

offer

InterfaceHttpPostRequestDecoder offer(HttpContent content)

Initialized the internals from a new chunk

参数:

content - the new received chunk

抛出:

HttpPostRequestDecoder.ErrorDataDecoderException - if there is a problem with the charset decoding or other errors

hasNext

boolean hasNext()

True if at current getStatus, there is an available decoded InterfaceHttpData from the Body. This getMethod works for chunked and not chunked request.

返回:

True if at current getStatus, there is a decoded InterfaceHttpData

抛出:

HttpPostRequestDecoder.EndOfDataDecoderException - No more data will be available

next

InterfaceHttpData next()

Returns the next available InterfaceHttpData or null if, at the time it is called, there is no more available InterfaceHttpData. A subsequent call to offer(httpChunk) could enable more data. Be sure to call ReferenceCounted.release() after you are done with processing to make sure to not leak any resources

返回:

the next available InterfaceHttpData or null if none

抛出:

HttpPostRequestDecoder.EndOfDataDecoderException - No more data will be available

currentPartialHttpData

InterfaceHttpData currentPartialHttpData()

Returns the current InterfaceHttpData if currently in decoding status, meaning all data are not yet within, or null if there is no InterfaceHttpData currently in decoding status (either because none yet decoded or none currently partially decoded). Full decoded ones are accessible through hasNext() and next() methods.

返回:

the current InterfaceHttpData if currently in decoding status or null if none.

destroy

void destroy()

Destroy the InterfaceHttpPostRequestDecoder and release all it resources. After this method was called it is not possible to operate on it anymore.

cleanFiles

void cleanFiles()

Clean all HttpDatas (on Disk) for the current request.

removeHttpDataFromClean

void removeHttpDataFromClean(InterfaceHttpData data)

Remove the given FileUpload from the list of FileUploads to clean