Examples of org.springframework.web.multipart.MultipartResolver

Package org.springframework.web.multipart

Examples of org.springframework.web.multipart.MultipartResolver

org.springframework.web.multipart.MultipartResolver
etf.org/rfc/rfc1867.txt">RFC 1867. Implementations are typically usable both within an application context and standalone.
There are two concrete implementations included in Spring, as of Spring 3.1:
- {@link org.springframework.web.multipart.commons.CommonsMultipartResolver} for Jakarta Commons FileUpload
- {@link org.springframework.web.multipart.support.StandardServletMultipartResolver} for Servlet 3.0 Part API
There is no default resolver implementation used for Spring {@link org.springframework.web.servlet.DispatcherServlet DispatcherServlets}, as an application might choose to parse its multipart requests itself. To define an implementation, create a bean with the id "multipartResolver" in a {@link org.springframework.web.servlet.DispatcherServlet DispatcherServlet's}application context. Such a resolver gets applied to all requests handled by that {@link org.springframework.web.servlet.DispatcherServlet}.
If a {@link org.springframework.web.servlet.DispatcherServlet} detectsa multipart request, it will resolve it via the configured {@link org.springframework.web.multipart.MultipartResolver} and pass on awrapped {@link javax.servlet.http.HttpServletRequest}. Controllers can then cast their given request to the {@link org.springframework.web.multipart.MultipartHttpServletRequest}interface, which permits access to any {@link org.springframework.web.multipart.MultipartFile MultipartFiles}. Note that this cast is only supported in case of an actual multipart request.
```
 public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) { MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; MultipartFile multipartFile = multipartRequest.getFile("image"); ... }
```
Instead of direct access, command or form controllers can register a {@link org.springframework.web.multipart.support.ByteArrayMultipartFileEditor}or {@link org.springframework.web.multipart.support.StringMultipartFileEditor}with their data binder, to automatically apply multipart content to command bean properties.
As an alternative to using a {@link org.springframework.web.multipart.MultipartResolver} with a{@link org.springframework.web.servlet.DispatcherServlet}, a {@link org.springframework.web.multipart.support.MultipartFilter} can beregistered in web.xml. It will delegate to a corresponding {@link org.springframework.web.multipart.MultipartResolver} bean in the rootapplication context. This is mainly intended for applications that do not use Spring's own web MVC framework.
Note: There is hardly ever a need to access the {@link org.springframework.web.multipart.MultipartResolver} itselffrom application code. It will simply do its work behind the scenes, making {@link org.springframework.web.multipart.MultipartHttpServletRequest MultipartHttpServletRequests}available to controllers. @author Juergen Hoeller @author Trevor D. Cook @since 29.09.2003 @see MultipartHttpServletRequest @see MultipartFile @see org.springframework.web.multipart.commons.CommonsMultipartResolver @see org.springframework.web.multipart.support.ByteArrayMultipartFileEditor @see org.springframework.web.multipart.support.StringMultipartFileEditor @see org.springframework.web.servlet.DispatcherServlet

   *             if an unrecoverable error occurs.
   */
  public HttpServletRequest handleMultipartRequest(RequestWrapper request, ServletContext servletContext)
      throws HdivMultipartException {


    MultipartResolver multipartResolver = this.lookupMultipartResolver(servletContext);


    if (multipartResolver == null) {
      return request;
    }
    if (!(multipartResolver instanceof HdivCommonsMultipartResolver || multipartResolver instanceof HdivStandardServletMultipartResolver)) {
      throw new IllegalStateException(
          "In order to enable HDIV multipart processing, MultipartResolver must be of "
              + HdivCommonsMultipartResolver.class.getName() + " or "
              + HdivStandardServletMultipartResolver.class.getName() + " type.");
    }


    MultipartHttpServletRequest processedRequest = null;
    try {
      // Resolve multipart with the original request
      processedRequest = multipartResolver.resolveMultipart((HttpServletRequest) request.getRequest());


    } catch (MultipartException e) {


      throw new HdivMultipartException(e);
    }

View Full Code Here

   * @param request
   *            the request to cleanup resources for
   * @since HDIV 2.1.0
   */
  public void cleanupMultipart(HttpServletRequest request) {
    MultipartResolver multipartResolver = lookupMultipartResolver(request.getSession().getServletContext());


    if (multipartResolver != null) {
      MultipartHttpServletRequest req = WebUtils.getNativeRequest(request, MultipartHttpServletRequest.class);
      if (req != null) {
        multipartResolver.cleanupMultipart(req);
      }
    }


  }

View Full Code Here

   * @return MultipartResolver instance
   */
  @SuppressWarnings("rawtypes")
  protected MultipartResolver lookupMultipartResolver(ServletContext servletContext) {


    MultipartResolver resolver = null;


    if (this.webApplicationContext == null) {
      this.webApplicationContext = WebApplicationContextUtils.getWebApplicationContext(servletContext);
    }

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      }


      LOG.debug( "Registering the MultipartFilter with resolver bean {} for default DispatcherServlet",
                 resolverBeanName );


      MultipartResolver resolver = beanFactory.getBean( resolverBeanName, MultipartResolver.class );
      MultipartFilter multipartFilter = new AcrossMultipartFilter( resolver );
      beanFactory.registerSingleton( FILTER_NAME, multipartFilter );


      FilterRegistration.Dynamic registration = servletContext.addFilter( FILTER_NAME,
                                                                          multipartFilter );

View Full Code Here


  @Test
  public void containerWithCustomMulipartResolver() throws Exception {
    this.context = new AnnotationConfigEmbeddedWebApplicationContext(
        ContainerWithCustomMultipartResolver.class, BaseConfiguration.class);
    MultipartResolver multipartResolver = this.context
        .getBean(MultipartResolver.class);
    assertThat(multipartResolver,
        not(instanceOf(StandardServletMultipartResolver.class)));
  }

View Full Code Here

  private String determineExistingResolverBeanName() {
    Map<String, MultipartResolver> existingResolvers = BeanFactoryUtils.beansOfTypeIncludingAncestors( beanFactory,
                                                                                                       MultipartResolver.class );


    if ( !existingResolvers.isEmpty() ) {
      MultipartResolver resolver = existingResolvers.get( DispatcherServlet.MULTIPART_RESOLVER_BEAN_NAME );


      String resolverBeanName = null;


      if ( resolver != null ) {
        resolverBeanName = MultipartFilter.DEFAULT_MULTIPART_RESOLVER_BEAN_NAME;

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        }


    }


    private static MultipartResolver initMultipartResolver(ApplicationContext context) {
        MultipartResolver multipartResolver = (MultipartResolver) SpringUtils.getBean(context,
                MultipartResolver.class);
        if (multipartResolver != null) {
            if (logger.isDebugEnabled()) {
                logger.debug("Using MultipartResolver [" + multipartResolver + "]");
            }

View Full Code Here

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