Add form data

[Dilli_babu_22]

How to get values form param and save form data as node in crx using servlet. I newbie to aem

[SantoshSai · Accepted solution]

Hi @Dilli_babu_22 ,

In AEM data is stored in JCR in the forms of nodes and properties, So to save data in JCR, you need to create nodes or/and properties. In your servlet get the data and create node/property using JCR Node.

Please check below snippet, it is just for demonstration.

1. Create Component and add below code in HTL
   HTL
   

   <form id="submitForm" method="post" action="/apps/my/servlets/path/create"> 
       <input type="text" name="name" value="" /> 
       <input type="text" name="email" value="" /> 
       <input type="text" name="title" value="" /> 
       <input type="text" name="phone" value="" /> 
       <input type="submit" value="Submit"/> 
   </form>

2. Create Servlet which is responsible to handle form request and save data in JCR node.
   Servlet
   

   package com.test.servlet; 
   import com.day.cq.commons.jcr.JcrUtil; 
   import org.apache.felix.scr.annotations.Component; 
   import org.apache.felix.scr.annotations.Properties; 
   import org.apache.felix.scr.annotations.Property; 
   import org.apache.felix.scr.annotations.Reference; 
   import org.apache.felix.scr.annotations.sling.SlingServlet; 
   import org.apache.sling.api.SlingHttpServletRequest; 
   import org.apache.sling.api.SlingHttpServletResponse; 
   import org.apache.sling.api.servlets.SlingAllMethodsServlet; 
   import org.apache.sling.jcr.api.SlingRepository; 
   import org.osgi.service.component.ComponentContext; 
   import org.slf4j.Logger; 
   import org.slf4j.LoggerFactory; 
   import javax.jcr.Node; 
   import javax.jcr.RepositoryException; 
   import javax.jcr.Session; 
   import javax.servlet.ServletException;
   import java.io.IOException; 
   import java.io.PrintWriter; 
   
   @Component(immediate = true, metatype = true, name = "com.test.CreateServlet", label = "Create Servlet", description = "Test creation servlet") 
   @SlingServlet(methods = { "POST" }, paths = "/apps/my/servlets/path/create", generateComponent = false) 
   @Properties({ @Property(name = "service.description", value = "CreateServlet"), @Property(name = "service.vendor", value = "My Vendor") }) 
   @SuppressWarnings({ "serial", "unused" }) 
   public class CreateServlet extends SlingAllMethodsServlet { 
   private static final String CREATE_PATH = "/content"; /// Set the base path here 
   private static final Logger log = LoggerFactory.getLogger(CreateServlet.class); 
   
   @Reference private SlingRepository repository; 
   
   @Override protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException { 
       //We are not using this atm.. but you could 
   } 
   
   @Override protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServletException, IOException { 
       ResourceResolver resourceResolver = request.getResourceResolver();
       Session session = resourceResolver.adaptTo(Session.class);
       String name = request.getParameter("name"); 
       String email = request.getParameter("email"); 
       String title = request.getParameter("title"); 
       String phone = request.getParameter("phone");
   
       PrintWriter out = response.getWriter(); 
       try { 
            Node firstProduct = JcrUtil.createPath(CREATE_PATH + "/" + name , "cq:Page", session); 
            Node firstSubProduct = JcrUtil.createPath(firstProduct.getPath() + "/subproduct1", "nt:unstructured", session); 
            Node secondSubProduct = JcrUtil.createPath(firstProduct.getPath() + "/subproduct2", "nt:unstructured", session); 
            firstSubProduct.setProperty("email", email); 
            firstSubProduct.setProperty("title", title); 
            secondSubProduct.setProperty("email", email); 
            secondSubProduct.setProperty("title", title); 
            session.save(); 
            out.println("That went well..."); 
            out.flush(); 
            out.close(); 
      } 
   catch (RepositoryException e) { 
       out.println("That went not so well..."); 
       out.flush(); 
       out.close(); 
       e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates. 
       } 
   } 

Hope that helps!

Regards,

Santosh

[Dilli_babu_22]

Thanks bro @SantoshSai 

[df94]

Where does the servlet code go?

[VeenaVikraman]

@Dilli_babu_22 I assume you are learning AEM and this might be some task given to you. Please refer @SantoshSai response. You should be good to go . But please do try to debug , add logs and understand each line in the Java code and understand what each API methods does. It will help you in the long run. 

Thanks

Veena ✌

[Dilli_babu_22]

Yes mam, I am new to aem. Now only learning new topics mam. Thanks mam for your suggestion 

[SantoshSai]

@Dilli_babu_22 Please check these blog if it helps you -https://www.techinnovia.com/blog/