org.springframework.web.multipart.support

Class StandardServletMultipartResolver

java.lang.Object

org.springframework.web.multipart.support.StandardServletMultipartResolver

All Implemented Interfaces:

MultipartResolver

public class StandardServletMultipartResolver
extends java.lang.Object
implements MultipartResolver

Standard implementation of the MultipartResolver interface, based on the Servlet 3.0 Part API. To be added as "multipartResolver" bean to a Spring DispatcherServlet context, without any extra configuration at the bean level (see below).

Note: In order to use Servlet 3.0 based multipart parsing, you need to mark the affected servlet with a "multipart-config" section in web.xml, or with a MultipartConfigElement in programmatic servlet registration, or (in case of a custom servlet class) possibly with a MultipartConfig annotation on your servlet class. Configuration settings such as maximum sizes or storage locations need to be applied at that servlet registration level; Servlet 3.0 does not allow for them to be set at the MultipartResolver level.

Since:

3.1

Author:

Juergen Hoeller

Constructor Summary

Constructors

Constructor and Description
StandardServletMultipartResolver()

Method Summary

Modifier and Type	Method and Description
void	cleanupMultipart(MultipartHttpServletRequest request) Cleanup any resources used for the multipart handling, like a storage for the uploaded files.
boolean	isMultipart(HttpServletRequest request) Determine if the given request contains multipart content.
MultipartHttpServletRequest	resolveMultipart(HttpServletRequest request) Parse the given HTTP request into multipart files and parameters, and wrap the request inside a MultipartHttpServletRequest object that provides access to file descriptors and makes contained parameters accessible via the standard ServletRequest methods.
void	setResolveLazily(boolean resolveLazily) Set whether to resolve the multipart request lazily at the time of file or parameter access.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardServletMultipartResolver

public StandardServletMultipartResolver()

Method Detail

setResolveLazily

public void setResolveLazily(boolean resolveLazily)

Set whether to resolve the multipart request lazily at the time of file or parameter access.

Default is "false", resolving the multipart elements immediately, throwing corresponding exceptions at the time of the resolveMultipart(javax.servlet.http.HttpServletRequest) call. Switch this to "true" for lazy multipart parsing, throwing parse exceptions once the application attempts to obtain multipart files or parameters.

isMultipart

public boolean isMultipart(HttpServletRequest request)

Description copied from interface: MultipartResolver

Determine if the given request contains multipart content.

Will typically check for content type "multipart/form-data", but the actually accepted requests might depend on the capabilities of the resolver implementation.

Specified by:

isMultipart in interface MultipartResolver

Parameters:

request - the servlet request to be evaluated

Returns:

whether the request contains multipart content

resolveMultipart

public MultipartHttpServletRequest resolveMultipart(HttpServletRequest request)
                                             throws MultipartException

Description copied from interface: MultipartResolver

Parse the given HTTP request into multipart files and parameters, and wrap the request inside a MultipartHttpServletRequest object that provides access to file descriptors and makes contained parameters accessible via the standard ServletRequest methods.

Specified by:

resolveMultipart in interface MultipartResolver

Parameters:

request - the servlet request to wrap (must be of a multipart content type)

Returns:

the wrapped servlet request

Throws:

MultipartException - if the servlet request is not multipart, or if implementation-specific problems are encountered (such as exceeding file size limits)

See Also:

MultipartRequest.getFile(java.lang.String), MultipartRequest.getFileNames(), MultipartRequest.getFileMap(), ServletRequest.getParameter(java.lang.String), ServletRequest.getParameterNames(), ServletRequest.getParameterMap()

cleanupMultipart

public void cleanupMultipart(MultipartHttpServletRequest request)

Description copied from interface: MultipartResolver

Cleanup any resources used for the multipart handling, like a storage for the uploaded files.

Specified by:

cleanupMultipart in interface MultipartResolver

Parameters:

request - the request to cleanup resources for