Re: How to Use Custom Bean in Freemarker

Dear Daniel,
Thanks for quick replying.
Below template I Am using with previous mention mail code
------------
: FreeMarker Template example: ${message}

======================= === County List ==== ======================= <#list
countries as country> ${country_index + 1}. ${country} </#list> ${users.name}
======================= === User List ==== ======================= <list
user as users> <#foreach user in users> ${user_index + 1}. ${users.name}
</#foreach>
-----------------

But I am getting below error:

FreeMarker Template example: Hello World!

======================= === County List ==== ======================= 1.
India 2. United States 3. Germany 4. France

======================= === User List ==== ======================= <list
user as users>

Expected collection or sequence. users evaluated instead to
freemarker.ext.beans.StringModel on line 15, column 27 in
resources/helloworld.ftl. The problematic instruction: ----------==>
foreach user in users [on line 15, column 9 in resources/helloworld.ftl]
----------

Java backtrace for programmers:
----------freemarker.template.TemplateException: Expected collection or
sequence. users evaluated instead to freemarker.ext.beans.StringModel on
line 15, column 27 in resources/helloworld.ftl. at
freemarker.core.TemplateObject.
invalidTypeException(TemplateObject.java:136) at
freemarker.core.IteratorBlock$ Context.runLoop(IteratorBlock.java:190) at
freemarker.core.Environment. visit(Environment.java:428) at
freemarker.core.IteratorBlock. accept(IteratorBlock.java:102) at
freemarker.core.Environment. visit(Environment.java:221) at
freemarker.core.MixedContent. accept(MixedContent.java:92) at
freemarker.core.Environment. visit(Environment.java:221) at
freemarker.core.Environment. process(Environment.java:199) at
freemarker.template.Template. process(Template.java:259) at
com.tatainfotech.Common.Main. sample(Main.java:76) at
com.tatainfotech.Common.Main.main(Main.java:46)
On Nov 29, 2012 3:21 AM, "Daniel Dekany" <[email protected]> wrote:

> You just put that Users (sic) object into the data model, and then
> access its properties like:
>
>   ${users.name}
>
> This works with the default wrapper too, since that extends
> BeansWrapper. (Although I would avoid the default wrapper in new
> projects, and just use pure BeansWrapper... but that's another story.)
>
> --
> Best regards,
>  Daniel Dekany
>
>
> Wednesday, November 28, 2012, 5:04:47 PM, Dinesh Gupta wrote:
>
> > Please help me out this problem.
> >  How can I access the POJO(custom bean) I Freemarker.
> > How can I use BeansWrapper or  other DataModal. Please give me an
> example of the one
> >
> >
> > ----------------------------------
> > import java.io.File;
> > import java.io.FileWriter;
> > import java.io.IOException;
> > import java.io.OutputStreamWriter;
> > import java.io.Writer;
> > import java.util.ArrayList;
> > import java.util.Calendar;
> > import java.util.List;
> >
> > import org.apache.log4j.Logger;
> >
> >
> >
> > import freemarker.template.Configuration;
> > import freemarker.template.ObjectWrapper;
> > import freemarker.template.SimpleHash;
> > import freemarker.template.Template;
> > import freemarker.template.TemplateException;
> >
> >
> > public class Main {
> >         private static final Logger LOGGER =
> Logger.getLogger(Main.class);
> >         public static void main(String[] args) {
> >                 LOGGER.info("Entering main in Main");
> >                 Calendar now = Calendar.getInstance();
> >                 System.out.println("Current date : " +
> (now.get(Calendar.MONTH) + 1)
> >                                 + "-" + now.get(Calendar.DATE) + "-" +
> now.get(Calendar.YEAR));
> >
> >                 // add days to current date using Calendar.add method
> >                 now.add(Calendar.DATE, 1);
> >
> >                 System.out.println("date after one day : "
> >                                 + (now.get(Calendar.MONTH) + 1) + "-" +
> now.get(Calendar.DATE)
> >                                 + "-" + now.get(Calendar.YEAR));
> >                 sample();
> >         }
> >         private static void sample(){
> >                 try {
> >                         LOGGER.info("Entering sample in Case Manager");
> >                         Configuration fmCfg = new Configuration();
> >                         /*BeansWrapper beanWrapper = new BeansWrapper();
> >
> > //beanWrapper.setExposureLevel(BeansWrapper.EXPOSE_ALL);
> >                         beanWrapper.setExposeFields(true);
> >                         fmCfg.setObjectWrapper(beanWrapper);*/
> >                         Template template =
> > fmCfg.getTemplate("./resources/helloworld.ftl");
> >                         SimpleHash context = new
> > SimpleHash(ObjectWrapper.BEANS_WRAPPER);
> >
> >                         // Build the data-model
> >                         context.put("message", "Hello World!");
> >
> >                         //List parsing
> >                         List<String> countries = new ArrayList<String>();
> >                         countries.add("India");
> >                         countries.add("United States");
> >                         countries.add("Germany");
> >                         countries.add("France");
> >                         context.put("countries", countries);
> >                         List<Users> lUsers = new ArrayList<Users>(2);
> >                         lUsers.add(new Users("Diinesh","GatewayPark"));
> >                         lUsers.add(new Users("Sandeep","Banglore"));
> >                         context.put("users",new
> Users("Diinesh","GatewayPark"));
> >
> >                         // Console output
> >                         Writer out = new OutputStreamWriter(System.out);
> >                         template.process(context, out);
> >                         out.flush();
> >
> >                         // File output
> >                         Writer file = new FileWriter(new
> > File("./output/FTL_helloworld.html"));
> >                         template.process(context, file);
> >                         file.flush();
> >                         file.close();
> >                 } catch (IOException e) {
> >                         LOGGER.error(e);
> >                 } catch (TemplateException e) {
> >                         LOGGER.error(e);
> >                 }
> >         }
> > }
> > class Users{
> >         String name;
> >         String place;
> >         public Users(String name, String place) {
> >                 this.name = name;
> >                 this.place = place;
> >         }
> >         public String getName() {
> >                 return name;
> >         }
> >         public void setName(String name) {
> >                 this.name = name;
> >         }
> >         public String getPlace() {
> >                 return place;
> >         }
> >         public void setPlace(String place) {
> >                 this.place = place;
> >         }
> >
> > }
> > ----------------------------------
>
>
>
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