org.apache.struts2.dispatcher.multipart
接口 MultiPartRequest

所有已知实现类：

JakartaMultiPartRequest

public interface MultiPartRequest

Abstract wrapper class HTTP requests to handle multi-part data.

方法摘要

void	cleanUp() Cleans up all uploaded file, should be called at the end of request
String[]	getContentType(String fieldName) Returns the content type(s) of the file(s) associated with the specified field name (as supplied by the client browser), or null if no files are associated with the given field name.
List<String>	getErrors() Returns a list of error messages that may have occurred while processing the request.
File[]	getFile(String fieldName) Returns a File object for the filename specified or null if no files are associated with the given field name.
String[]	getFileNames(String fieldName) Returns a String[] of file names for files associated with the specified input field name
Enumeration<String>	getFileParameterNames() Returns an enumeration of the parameter names for uploaded files
String[]	getFilesystemName(String fieldName) Returns the file system name(s) of files associated with the given field name or null if no files are associated with the given field name.
String	getParameter(String name) Returns the specified request parameter.
Enumeration<String>	getParameterNames() Returns an enumeration of String parameter names.
String[]	getParameterValues(String name) Returns a list of all parameter values associated with a parameter name.
void	parse(javax.servlet.http.HttpServletRequest request, String saveDir)

方法详细信息

parse

void parse(javax.servlet.http.HttpServletRequest request,
           String saveDir)
           throws IOException

抛出：

IOException

getFileParameterNames

Enumeration<String> getFileParameterNames()

Returns an enumeration of the parameter names for uploaded files

返回：

an enumeration of the parameter names for uploaded files

getContentType

String[] getContentType(String fieldName)

Returns the content type(s) of the file(s) associated with the specified field name (as supplied by the client browser), or null if no files are associated with the given field name.

参数：

fieldName - input field name

返回：

an array of content encoding for the specified input field name or null if no content type was specified.

getFile

File[] getFile(String fieldName)

Returns a File object for the filename specified or null if no files are associated with the given field name.

参数：

fieldName - input field name

返回：

a File[] object for files associated with the specified input field name

getFileNames

String[] getFileNames(String fieldName)

Returns a String[] of file names for files associated with the specified input field name

参数：

fieldName - input field name

返回：

a String[] of file names for files associated with the specified input field name

getFilesystemName

String[] getFilesystemName(String fieldName)

Returns the file system name(s) of files associated with the given field name or null if no files are associated with the given field name.

参数：

fieldName - input field name

返回：

the file system name(s) of files associated with the given field name

getParameter

String getParameter(String name)

Returns the specified request parameter.

参数：

name - the name of the parameter to get

返回：

the parameter or null if it was not found.

getParameterNames

Enumeration<String> getParameterNames()

Returns an enumeration of String parameter names.

返回：

an enumeration of String parameter names.

getParameterValues

String[] getParameterValues(String name)

Returns a list of all parameter values associated with a parameter name. If there is only one parameter value per name the resulting array will be of length 1.

参数：

name - the name of the parameter.

返回：

an array of all values associated with the parameter name.

getErrors

List<String> getErrors()

Returns a list of error messages that may have occurred while processing the request. If there are no errors, an empty list is returned. If the underlying implementation (ie: pell, cos, jakarta, etc) cannot support providing these errors, an empty list is also returned. This list of errors is repoted back to the MultiPartRequestWrapper's errors field.

返回：

a list of Strings that represent various errors during parsing

cleanUp

void cleanUp()

Cleans up all uploaded file, should be called at the end of request