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vinuu123
Level 3
Aug 30, 2023 9:49 AM UTC
Solved

Servlet for external Url to fetch html

Hi Everyone,

Can anyone help me how to write sevlet for this dialog, I want fetch html from external URL.

Thanks in advance.

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ShaileshBassi
ShaileshBassiAccepted solution
New Participant
Aug 31, 2023 7:23 AM UTC

Hi @vinuu123  I am referring the API to the external URL. You can get it via annoations.

@Inject @Optional @Named("externalUrl") protected String externalUrl;

Thanks

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5 replies

Mahedi_Sabuj
Mahedi_Sabuj
New Participant
Aug 30, 2023 6:26 PM UTC

Hi @vinuu123 

I'm curious about the choice not to use an iframe to embed external URL. Could you provide insight that influenced this decision?

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Mahedi Sabuj
    ShaileshBassi
    ShaileshBassi
    New Participant
    Aug 30, 2023 2:57 PM UTC

    Hi @vinuu123 You can read the value of the URL in the sling dialog and then use the below code to get the extract of the entire html section

    @Model(adaptables = {Resource.class, SlingHttpServletRequest.class}, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL) public class HtmlModel{ private static final Logger logger = LoggerFactory.getLogger(HtmlModel.class); @Getter private String body; @PostConstruct void init() { final String api = <read it from dialog>; final HttpGet httpRequest = new HttpGet(api); try (final CloseableHttpResponse response = HttpClients.createDefault().execute(httpRequest)) { body = IOUtils.toString(response.getEntity().getContent(), StandardCharsets.UTF_8); } catch (final IOException e) { logger.error("IOException while reading HTML API %s: ", e); } } }

     

    Hope this helps!

    Thanks

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      vinuu123Author
      Level 3
      Aug 31, 2023 5:38 AM UTC

      @shaileshbassi , here what is api ?

       this is my html for entering external url from dialog

      can you help me here?

       

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        ShaileshBassi
        ShaileshBassiAccepted solution
        New Participant
        Aug 31, 2023 7:23 AM UTC

        Hi @vinuu123  I am referring the API to the external URL. You can get it via annoations.

        @Inject @Optional @Named("externalUrl") protected String externalUrl;

        Thanks

        Translate
          sherinregi-1
          sherinregi-1
          New Participant
          Aug 30, 2023 10:38 AM UTC

          Hi @vinuu123 

          I am not sure if I am exactly following the requirement here but in case your ask is to invoke the servlet from dialog you can try the implementation in the below link.

          https://aemsimplifiedbynikhil.wordpress.com/2018/07/30/call-any-servlet-in-touchui-dialog-aem-6-3/

           

          You can also bind with a slingmodel in backend and then read the content in backend with URL configured from the dialog also and can avoid servlet if that works.

           

           

           

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