使用GuideBridge APIPOST表單資料

Last update: Wed May 15 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

主題：
Adaptive Forms

建立對象：

Experienced
Developer

表單的「儲存並繼續」涉及允許使用者儲存填寫表單的進度並在稍後繼續。
為了完成此使用案例，我們需要使用GuideBridge API存取表單資料，並將其傳送至REST端點以進行儲存和擷取。

表單資料會使用規則編輯器儲存在按鈕的點選事件上

下列JavaScript函式是用來傳送資料至指定的端點

/**
* Submits data and attachments
* @name submitFormDataAndAttachments Submit form data and attachments to REST end point
* @param {string} endpoint in Stringformat
* @return {string}
 */

 function submitFormDataAndAttachments(endpoint) {
    guideBridge.getFormDataObject({
        success: function(resultObj) {
            const afFormData = resultObj.data.data;
            const formData = new FormData();
            formData.append("dataXml", afFormData);
            resultObj.data.attachments.forEach(attachment => {
                console.log(attachment.name);
                formData.append(attachment.name, attachment.data);
            });
            fetch(endpoint, {
                method: 'POST',
                body: formData
            })
            .then(response => {
                if (response.ok) {
                    console.log("successfully saved");
                    const fld = guideBridge.resolveNode("$form.confirmation");
                    return "Form data was saved successfully";
                } else {
                    throw new Error('Failed to save form data');
                }
            })
            .catch(error => {
                console.error('Error:', error);
            });
        }
    });
}

伺服器端代碼

已寫入下列伺服器端Java程式碼以處理表單資料。以下是在AEM中執行的Java servlet，這會透過上述JavaScript中的XHR呼叫來呼叫。

package com.azuredemo.core.servlets;
import com.adobe.aemfd.docmanager.Document;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.request.RequestParameter;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.servlets.annotations.SlingServletResourceTypes;
import org.osgi.service.component.annotations.Component;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.Servlet;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.util.List;
@Component(
   service = {
      Servlet.class
   }
)
@SlingServletResourceTypes(
   resourceTypes = "azure/handleFormSubmission",
   methods = "POST",
   extensions = "json"
)
public class StoreFormSubmission extends SlingAllMethodsServlet implements Serializable {
   private static final long serialVersionUID = 1 L;
   private final transient Logger log = LoggerFactory.getLogger(this.getClass());
   protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws IOException {
      List < RequestParameter > listOfRequestParameters = request.getRequestParameterList();
      log.debug("The size of list is " + listOfRequestParameters.size());
      for (int i = 0; i < listOfRequestParameters.size(); i++) {
         RequestParameter requestParameter = listOfRequestParameters.get(i);
         log.debug("is this request parameter a form field?" + requestParameter.isFormField());
         if (!requestParameter.isFormField()) {
            Document attachmentDOC = new Document(requestParameter.getInputStream());
            attachmentDOC.copyToFile(new File(requestParameter.getName()));
         } else {
            log.debug("Not a form field " + requestParameter.getName());
            log.debug(requestParameter.getString());
         }
      }
      response.setStatus(HttpServletResponse.SC_OK);
   }
}

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