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vinuu123
Level 3
August 30, 2023
Solved

Servlet for external Url to fetch html

  • August 30, 2023
  • 3 replies
  • 1288 views

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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Best answer by ShaileshBassi

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

3 replies

sherinregi-1
Community Advisor
sherinregi-1Community Advisor
Community Advisor
August 30, 2023

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.

 

 

 

    ShaileshBassi
    Community Advisor
    ShaileshBassiCommunity Advisor
    Community Advisor
    August 30, 2023

    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

      V
      vinuu123Author
      Level 3
      August 31, 2023

      @shaileshbassi , here what is api ?

       this is my html for entering external url from dialog

      can you help me here?

       

        ShaileshBassi
        Community Advisor
        ShaileshBassiCommunity AdvisorAccepted solution
        Community Advisor
        August 31, 2023

        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

          Mahedi_Sabuj
          Community Advisor
          Mahedi_SabujCommunity Advisor
          Community Advisor
          August 30, 2023

          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?

          Mahedi Sabuj
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