How to use

addParameter

method

in

com.helger.commons.mime.MimeType

/**
 * Get the mime type of this SOAP version with the passed charset.
 *
 * @param aCharset
 *        The charset to be used. May not be <code>null</code>.
 * @return Never <code>null</code>.
 */
@Nonnull
@ReturnsMutableCopy
public MimeType getMimeType (@Nonnull final Charset aCharset)
{
 return new MimeType (m_aMimeType).addParameter (CMimeType.PARAMETER_NAME_CHARSET, aCharset.name ());
}

/**
 * Get the HTML MIME type to use
 *
 * @param aRequestScope
 *        The request scope. May be <code>null</code>-
 * @return Never <code>null</code>.
 */
@Nonnull
public static IMimeType getMimeType (@Nullable final IRequestWebScopeWithoutResponse aRequestScope)
{
 // Add the charset to the MIME type
 return new MimeType (CMimeType.TEXT_HTML).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                             HCSettings.getHTMLCharset ().name ());
}

public void xml (@Nullable final String sXML, @Nonnull final Charset aCharset)
{
 setContentAndCharset (StringHelper.getNotNull (sXML), aCharset);
 setMimeType (new MimeType (CMimeType.APPLICATION_XML).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                                   aCharset.name ()));
}

public void json (@Nullable final IJson aValue)
{
 // Ensure it is valid JSON
 final String sResponse = aValue != null ? aValue.getAsJsonString () : "{}";
 final Charset aCharset = StandardCharsets.UTF_8;
 setContentAndCharset (sResponse, aCharset);
 setMimeType (new MimeType (CMimeType.APPLICATION_JSON).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                                    aCharset.name ()));
}

m_aMimeType = ((MimeType) aMimeType.getClone ()).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                                aCharset.name ());

 public void handleRequest (@Nonnull final IRequestWebScopeWithoutResponse aRequestScope,
               @Nonnull final UnifiedResponse aUnifiedResponse) throws Exception
 {
  if (LOGGER.isDebugEnabled ())
   LOGGER.debug ("Status information requested");

  // Build data to provide
  IJsonObject aStatusData;
  if (SMPServerConfiguration.isStatusEnabled ())
   aStatusData = getDefaultStatusData ();
  else
  {
   // Status is disabled in the configuration
   aStatusData = new JsonObject ();
   aStatusData.add ("status.enabled", false);
  }

  // Put JSON on response
  aUnifiedResponse.disableCaching ();
  aUnifiedResponse.setMimeType (new MimeType (CMimeType.APPLICATION_JSON).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                                             CHARSET.name ()));
  aUnifiedResponse.setContentAndCharset (aStatusData.getAsJsonString (), CHARSET);
 }
}

 public void handleRequest (@Nonnull final IRequestWebScopeWithoutResponse aRequestScope,
               @Nonnull final UnifiedResponse aUnifiedResponse) throws Exception
 {
  if (LOGGER.isDebugEnabled ())
   LOGGER.debug ("Status information requested");

  // Build data to provide
  IJsonObject aStatusData;
  if (SMPServerConfiguration.isStatusEnabled ())
   aStatusData = getDefaultStatusData ();
  else
  {
   // Status is disabled in the configuration
   aStatusData = new JsonObject ();
   aStatusData.add ("status.enabled", false);
  }

  // Put JSON on response
  aUnifiedResponse.disableCaching ();
  aUnifiedResponse.setMimeType (new MimeType (CMimeType.APPLICATION_JSON).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                                             CHARSET.name ()));
  aUnifiedResponse.setContentAndCharset (aStatusData.getAsJsonString (), CHARSET);
 }
}

 public void execute (@Nonnull final IRequestWebScopeWithoutResponse aRequestScope,
            @Nonnull final UnifiedResponse aUnifiedResponse) throws Exception
 {
  // Resolve language
  final String sLanguage = aRequestScope.getAttributeAsString (LANGUAGE_ID);
  Locale aLanguage = LocaleCache.getLocale (sLanguage);
  if (aLanguage == null)
  {
   // None or invalid locale specified - use default from constructor
   aLanguage = m_aDefaultLocale;
  }

  // Main action
  final IJsonObject aData = DataTables.createLanguageJson (aLanguage);

  // Fill HTTP response
  final Charset aCharset = CHTMLCharset.CHARSET_HTML_OBJ;
  aUnifiedResponse.setContentAndCharset (aData.getAsString (), aCharset)
          .setMimeType (new MimeType (CMimeType.APPLICATION_JSON).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                                             aCharset.name ()))
          .enableCaching (ResponseHelperSettings.getExpirationSeconds ());
 }
}

new MimeType (CMimeType.TEXT_HTML).addParameter (CMimeType.PARAMETER_NAME_CHARSET,
                         aCharset.name ())
                 .getAsString ());