org.springframework.http.InvalidMediaTypeException#getMessage ( )源码实例Demo

/**
 * {@inheritDoc}
 * @throws HttpMediaTypeNotAcceptableException if the 'Accept' header cannot be parsed
 */
@Override
public List<MediaType> resolveMediaTypes(NativeWebRequest request)
		throws HttpMediaTypeNotAcceptableException {

	String[] headerValueArray = request.getHeaderValues(HttpHeaders.ACCEPT);
	if (headerValueArray == null) {
		return MEDIA_TYPE_ALL_LIST;
	}

	List<String> headerValues = Arrays.asList(headerValueArray);
	try {
		List<MediaType> mediaTypes = MediaType.parseMediaTypes(headerValues);
		MediaType.sortBySpecificityAndQuality(mediaTypes);
		return !CollectionUtils.isEmpty(mediaTypes) ? mediaTypes : MEDIA_TYPE_ALL_LIST;
	}
	catch (InvalidMediaTypeException ex) {
		throw new HttpMediaTypeNotAcceptableException(
				"Could not parse 'Accept' header " + headerValues + ": " + ex.getMessage());
	}
}
 

/**
 * {@inheritDoc}
 * @throws HttpMediaTypeNotAcceptableException if the 'Accept' header cannot be parsed
 */
@Override
public List<MediaType> resolveMediaTypes(NativeWebRequest request)
		throws HttpMediaTypeNotAcceptableException {

	String[] headerValueArray = request.getHeaderValues(HttpHeaders.ACCEPT);
	if (headerValueArray == null) {
		return MEDIA_TYPE_ALL_LIST;
	}

	List<String> headerValues = Arrays.asList(headerValueArray);
	try {
		List<MediaType> mediaTypes = MediaType.parseMediaTypes(headerValues);
		MediaType.sortBySpecificityAndQuality(mediaTypes);
		return !CollectionUtils.isEmpty(mediaTypes) ? mediaTypes : MEDIA_TYPE_ALL_LIST;
	}
	catch (InvalidMediaTypeException ex) {
		throw new HttpMediaTypeNotAcceptableException(
				"Could not parse 'Accept' header " + headerValues + ": " + ex.getMessage());
	}
}
 

/**
 * {@inheritDoc}
 * @throws HttpMediaTypeNotAcceptableException if the 'Accept' header cannot be parsed
 */
@Override
public List<MediaType> resolveMediaTypes(NativeWebRequest request)
		throws HttpMediaTypeNotAcceptableException {

	String[] headerValueArray = request.getHeaderValues(HttpHeaders.ACCEPT);
	if (headerValueArray == null) {
		return Collections.<MediaType>emptyList();
	}

	List<String> headerValues = Arrays.asList(headerValueArray);
	try {
		List<MediaType> mediaTypes = MediaType.parseMediaTypes(headerValues);
		MediaType.sortBySpecificityAndQuality(mediaTypes);
		return mediaTypes;
	}
	catch (InvalidMediaTypeException ex) {
		throw new HttpMediaTypeNotAcceptableException(
				"Could not parse 'Accept' header " + headerValues + ": " + ex.getMessage());
	}
}
 

/**
 * {@inheritDoc}
 * @throws HttpMediaTypeNotAcceptableException if the 'Accept' header
 * cannot be parsed.
 */
@Override
public List<MediaType> resolveMediaTypes(NativeWebRequest request)
		throws HttpMediaTypeNotAcceptableException {

	String header = request.getHeader(HttpHeaders.ACCEPT);
	if (!StringUtils.hasText(header)) {
		return Collections.emptyList();
	}
	try {
		List<MediaType> mediaTypes = MediaType.parseMediaTypes(header);
		MediaType.sortBySpecificityAndQuality(mediaTypes);
		return mediaTypes;
	}
	catch (InvalidMediaTypeException ex) {
		throw new HttpMediaTypeNotAcceptableException(
				"Could not parse 'Accept' header [" + header + "]: " + ex.getMessage());
	}
}
 

@Override
public List<MediaType> resolveMediaTypes(ServerWebExchange exchange) throws NotAcceptableStatusException {
	try {
		List<MediaType> mediaTypes = exchange.getRequest().getHeaders().getAccept();
		MediaType.sortBySpecificityAndQuality(mediaTypes);
		return (!CollectionUtils.isEmpty(mediaTypes) ? mediaTypes : MEDIA_TYPE_ALL_LIST);
	}
	catch (InvalidMediaTypeException ex) {
		String value = exchange.getRequest().getHeaders().getFirst("Accept");
		throw new NotAcceptableStatusException(
				"Could not parse 'Accept' header [" + value + "]: " + ex.getMessage());
	}
}
 

@Override
protected boolean matchMediaType(ServerWebExchange exchange) throws UnsupportedMediaTypeStatusException {
	try {
		MediaType contentType = exchange.getRequest().getHeaders().getContentType();
		contentType = (contentType != null ? contentType : MediaType.APPLICATION_OCTET_STREAM);
		return getMediaType().includes(contentType);
	}
	catch (InvalidMediaTypeException ex) {
		throw new UnsupportedMediaTypeStatusException("Can't parse Content-Type [" +
				exchange.getRequest().getHeaders().getFirst("Content-Type") +
				"]: " + ex.getMessage());
	}
}
 

@Override
public List<MediaType> resolveMediaTypes(ServerWebExchange exchange) throws NotAcceptableStatusException {
	try {
		List<MediaType> mediaTypes = exchange.getRequest().getHeaders().getAccept();
		MediaType.sortBySpecificityAndQuality(mediaTypes);
		return (!CollectionUtils.isEmpty(mediaTypes) ? mediaTypes : MEDIA_TYPE_ALL_LIST);
	}
	catch (InvalidMediaTypeException ex) {
		String value = exchange.getRequest().getHeaders().getFirst("Accept");
		throw new NotAcceptableStatusException(
				"Could not parse 'Accept' header [" + value + "]: " + ex.getMessage());
	}
}
 

@Override
protected boolean matchMediaType(ServerWebExchange exchange) throws UnsupportedMediaTypeStatusException {
	try {
		MediaType contentType = exchange.getRequest().getHeaders().getContentType();
		contentType = (contentType != null ? contentType : MediaType.APPLICATION_OCTET_STREAM);
		return getMediaType().includes(contentType);
	}
	catch (InvalidMediaTypeException ex) {
		throw new UnsupportedMediaTypeStatusException("Can't parse Content-Type [" +
				exchange.getRequest().getHeaders().getFirst("Content-Type") +
				"]: " + ex.getMessage());
	}
}
 

@Override
protected boolean matchMediaType(HttpServletRequest request) throws HttpMediaTypeNotSupportedException {
	try {
		MediaType contentType = StringUtils.hasLength(request.getContentType()) ?
				MediaType.parseMediaType(request.getContentType()) :
				MediaType.APPLICATION_OCTET_STREAM;
				return getMediaType().includes(contentType);
	}
	catch (InvalidMediaTypeException ex) {
		throw new HttpMediaTypeNotSupportedException(
				"Can't parse Content-Type [" + request.getContentType() + "]: " + ex.getMessage());
	}
}
 

protected MediaType getMediaType(ServletServerHttpRequest inputMessage){
	MediaType contentType;
	try {
		contentType = inputMessage.getHeaders().getContentType();
	}
	catch (InvalidMediaTypeException ex) {
		throw new BaseException(ex.getMessage());
	}
	if (contentType == null) {
		contentType = MediaType.APPLICATION_OCTET_STREAM;
	}
	return contentType;
}
 

protected MediaType getMediaType(ServletServerHttpRequest inputMessage){
	MediaType contentType;
	try {
		contentType = inputMessage.getHeaders().getContentType();
	}
	catch (InvalidMediaTypeException ex) {
		throw new BaseException(ex.getMessage());
	}
	if (contentType == null) {
		contentType = MediaType.APPLICATION_OCTET_STREAM;
	}
	return contentType;
}
 

/**
 * Iterate all RequestMappingInfos once again, look if any match by URL at
 * least and raise exceptions accordingly.
 * @throws HttpRequestMethodNotSupportedException if there are matches by URL
 * but not by HTTP method
 * @throws HttpMediaTypeNotAcceptableException if there are matches by URL
 * but not by consumable/producible media types
 */
@Override
protected HandlerMethod handleNoMatch(Set<RequestMappingInfo> requestMappingInfos,
		String lookupPath, HttpServletRequest request) throws ServletException {

	Set<String> allowedMethods = new LinkedHashSet<String>(4);

	Set<RequestMappingInfo> patternMatches = new HashSet<RequestMappingInfo>();
	Set<RequestMappingInfo> patternAndMethodMatches = new HashSet<RequestMappingInfo>();

	for (RequestMappingInfo info : requestMappingInfos) {
		if (info.getPatternsCondition().getMatchingCondition(request) != null) {
			patternMatches.add(info);
			if (info.getMethodsCondition().getMatchingCondition(request) != null) {
				patternAndMethodMatches.add(info);
			}
			else {
				for (RequestMethod method : info.getMethodsCondition().getMethods()) {
					allowedMethods.add(method.name());
				}
			}
		}
	}

	if (patternMatches.isEmpty()) {
		return null;
	}
	else if (patternAndMethodMatches.isEmpty() && !allowedMethods.isEmpty()) {
		throw new HttpRequestMethodNotSupportedException(request.getMethod(), allowedMethods);
	}

	Set<MediaType> consumableMediaTypes;
	Set<MediaType> producibleMediaTypes;
	List<String[]> paramConditions;

	if (patternAndMethodMatches.isEmpty()) {
		consumableMediaTypes = getConsumableMediaTypes(request, patternMatches);
		producibleMediaTypes = getProducibleMediaTypes(request, patternMatches);
		paramConditions = getRequestParams(request, patternMatches);
	}
	else {
		consumableMediaTypes = getConsumableMediaTypes(request, patternAndMethodMatches);
		producibleMediaTypes = getProducibleMediaTypes(request, patternAndMethodMatches);
		paramConditions = getRequestParams(request, patternAndMethodMatches);
	}

	if (!consumableMediaTypes.isEmpty()) {
		MediaType contentType = null;
		if (StringUtils.hasLength(request.getContentType())) {
			try {
				contentType = MediaType.parseMediaType(request.getContentType());
			}
			catch (InvalidMediaTypeException ex) {
				throw new HttpMediaTypeNotSupportedException(ex.getMessage());
			}
		}
		throw new HttpMediaTypeNotSupportedException(contentType, new ArrayList<MediaType>(consumableMediaTypes));
	}
	else if (!producibleMediaTypes.isEmpty()) {
		throw new HttpMediaTypeNotAcceptableException(new ArrayList<MediaType>(producibleMediaTypes));
	}
	else if (!CollectionUtils.isEmpty(paramConditions)) {
		throw new UnsatisfiedServletRequestParameterException(paramConditions, request.getParameterMap());
	}
	else {
		return null;
	}
}