Generate Xml file in class

Generating XML file in Salesforce…………………………..

Ø  We need start class with global keyword

Ø  XmlStreamWriter Class

The XmlStreamWriter class provides methods for writing XML data.

For more information:

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_xml_XmlStream_writer.htm

class:

@Restresource(urlmapping = '/accounts/*')

Global class GenerateaccountXML {

   

    webservice static string generatexml(){

        xmlstreamwriter x = new xmlstreamwriter();

        list<account> acc = [SELECT AccountNumber,AccountSource,BillingCity,BillingCountry,DOB__c,Email__c,Name,

            (select name from contacts) FROM Account];

        string xmlstr = '';

        x.writeStartElement(null, 'Accounts', null);

        for(account a : acc){

            if(a.contacts.size()>0){

        x.writeStartElement(null, 'Account', null);

        x.writeCharacters(a.name);

        x.writeEndElement();

        x.writeStartElement(null, 'Accountbillingcity', null);

            if(a.BillingCity == null){

        x.writeCharacters('hyderabad');

            }else{

        x.writecharacters(a.BillingCity);

            }

        x.writeEndElement();

            x.writeStartElement(null, 'contacts', null);

            for(contact c : a.contacts){

                 x.writeStartElement(null, 'contactname', null);

                                     x.writeCharacters(c.name);

                                     x.writeEndElement();            

               

            }

            x.writeEndElement();

            }

        }

        x.writeEndElement();

        xmlstr = x.getXmlString();

        return xmlstr;       

    }

}

Execute following code in console :

string s = GenerateaccountXML.generatexml();

system.debug('account xml file is : ' +s);