How to use

org.apache.tomcat.util.http.fileupload.servlet.ServletRequestContext

constructor

if (FileUploadBase.isMultipartContent(new ServletRequestContext(request))) {
 upload.setHeaderEncoding(StandardCharsets.UTF_8.name());
 try {
  List<FileItem> fileItems = upload.parseRequest(new ServletRequestContext(request));
  for (FileItem fi : fileItems) {
   if (!fi.isFormField()) {

 HttpServletResponse response) throws Exception {
if (FileUploadBase.isMultipartContent(new ServletRequestContext(request))) {
 upload.setHeaderEncoding(StandardCharsets.UTF_8.name());
 try {
  List<FileItem> fileItems = upload.parseRequest(new ServletRequestContext(request));
  for (FileItem fi : fileItems) {
   if (!fi.isFormField()) {

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return A list of <code>FileItem</code> instances parsed from the
 *         request, in the order that they were transmitted.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 */
public List<FileItem> parseRequest(HttpServletRequest request)
throws FileUploadException {
  return parseRequest(new ServletRequestContext(request));
}

/**
 * Utility method that determines whether the request contains multipart
 * content.
 *
 * @param request The servlet request to be evaluated. Must be non-null.
 *
 * @return <code>true</code> if the request is multipart;
 *         <code>false</code> otherwise.
 */
public static final boolean isMultipartContent(
    HttpServletRequest request) {
  if (!POST_METHOD.equalsIgnoreCase(request.getMethod())) {
    return false;
  }
  return FileUploadBase.isMultipartContent(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return A list of <code>FileItem</code> instances parsed from the
 *         request, in the order that they were transmitted.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 */
public List<FileItem> parseRequest(HttpServletRequest request)
throws FileUploadException {
  return parseRequest(new ServletRequestContext(request));
}

/**
 * Utility method that determines whether the request contains multipart
 * content.
 *
 * @param request The servlet request to be evaluated. Must be non-null.
 *
 * @return <code>true</code> if the request is multipart;
 *         <code>false</code> otherwise.
 */
public static final boolean isMultipartContent(
    HttpServletRequest request) {
  if (!POST_METHOD.equalsIgnoreCase(request.getMethod())) {
    return false;
  }
  return FileUploadBase.isMultipartContent(new ServletRequestContext(request));
}

/**
 * Utility method that determines whether the request contains multipart
 * content.
 *
 * @param request The servlet request to be evaluated. Must be non-null.
 *
 * @return <code>true</code> if the request is multipart;
 *         <code>false</code> otherwise.
 */
public static final boolean isMultipartContent(
    HttpServletRequest request) {
  if (!POST_METHOD.equalsIgnoreCase(request.getMethod())) {
    return false;
  }
  return FileUploadBase.isMultipartContent(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return A list of <code>FileItem</code> instances parsed from the
 *         request, in the order that they were transmitted.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 */
public List<FileItem> parseRequest(HttpServletRequest request)
throws FileUploadException {
  return parseRequest(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return A map of <code>FileItem</code> instances parsed from the request.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 *
 * @since 1.3
 */
public Map<String, List<FileItem>> parseParameterMap(HttpServletRequest request)
    throws FileUploadException {
  return parseParameterMap(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return An iterator to instances of <code>FileItemStream</code>
 *         parsed from the request, in the order that they were
 *         transmitted.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 * @throws IOException An I/O error occurred. This may be a network
 *   error while communicating with the client or a problem while
 *   storing the uploaded content.
 */
public FileItemIterator getItemIterator(HttpServletRequest request)
throws FileUploadException, IOException {
  return super.getItemIterator(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return A map of <code>FileItem</code> instances parsed from the request.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 *
 * @since 1.3
 */
public Map<String, List<FileItem>> parseParameterMap(HttpServletRequest request)
    throws FileUploadException {
  return parseParameterMap(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return A map of <code>FileItem</code> instances parsed from the request.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 *
 * @since 1.3
 */
public Map<String, List<FileItem>> parseParameterMap(HttpServletRequest request)
    throws FileUploadException {
  return parseParameterMap(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return An iterator to instances of <code>FileItemStream</code>
 *         parsed from the request, in the order that they were
 *         transmitted.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 * @throws IOException An I/O error occurred. This may be a network
 *   error while communicating with the client or a problem while
 *   storing the uploaded content.
 */
public FileItemIterator getItemIterator(HttpServletRequest request)
throws FileUploadException, IOException {
  return super.getItemIterator(new ServletRequestContext(request));
}

/**
 * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
 * compliant <code>multipart/form-data</code> stream.
 *
 * @param request The servlet request to be parsed.
 *
 * @return An iterator to instances of <code>FileItemStream</code>
 *         parsed from the request, in the order that they were
 *         transmitted.
 *
 * @throws FileUploadException if there are problems reading/parsing
 *                             the request or storing files.
 * @throws IOException An I/O error occurred. This may be a network
 *   error while communicating with the client or a problem while
 *   storing the uploaded content.
 */
public FileItemIterator getItemIterator(HttpServletRequest request)
throws FileUploadException, IOException {
  return super.getItemIterator(new ServletRequestContext(request));
}

  /**
   * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
   * compliant <code>multipart/form-data</code> stream.
   *
   * @param request The servlet request to be parsed.
   *
   * @return An iterator to instances of <code>FileItemStream</code>
   *         parsed from the request, in the order that they were
   *         transmitted.
   *
   * @throws FileUploadException if there are problems reading/parsing
   *                             the request or storing files.
   * @throws IOException An I/O error occurred. This may be a network
   *   error while communicating with the client or a problem while
   *   storing the uploaded content.
   */
  public FileItemIterator getItemIterator(HttpServletRequest request)
  throws FileUploadException, IOException {
    return super.getItemIterator(new ServletRequestContext(request));
  }
}

  /**
   * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
   * compliant <code>multipart/form-data</code> stream.
   *
   * @param request The servlet request to be parsed.
   *
   * @return An iterator to instances of <code>FileItemStream</code>
   *         parsed from the request, in the order that they were
   *         transmitted.
   *
   * @throws FileUploadException if there are problems reading/parsing
   *                             the request or storing files.
   * @throws IOException An I/O error occurred. This may be a network
   *   error while communicating with the client or a problem while
   *   storing the uploaded content.
   */
  public FileItemIterator getItemIterator(HttpServletRequest request)
  throws FileUploadException, IOException {
    return super.getItemIterator(new ServletRequestContext(request));
  }
}

  /**
   * Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
   * compliant <code>multipart/form-data</code> stream.
   *
   * @param request The servlet request to be parsed.
   *
   * @return An iterator to instances of <code>FileItemStream</code>
   *         parsed from the request, in the order that they were
   *         transmitted.
   *
   * @throws FileUploadException if there are problems reading/parsing
   *                             the request or storing files.
   * @throws IOException An I/O error occurred. This may be a network
   *   error while communicating with the client or a problem while
   *   storing the uploaded content.
   */
  public FileItemIterator getItemIterator(HttpServletRequest request)
  throws FileUploadException, IOException {
    return super.getItemIterator(new ServletRequestContext(request));
  }
}

try {
  List<FileItem> items =
      upload.parseRequest(new ServletRequestContext(this));
  int maxPostSize = getConnector().getMaxPostSize();
  int postSize = 0;

try {
  List<FileItem> items =
      upload.parseRequest(new ServletRequestContext(this));
  int maxPostSize = getConnector().getMaxPostSize();
  int postSize = 0;

try {
  List<FileItem> items =
      upload.parseRequest(new ServletRequestContext(this));
  int maxPostSize = getConnector().getMaxPostSize();
  int postSize = 0;