Spring - No qualifying bean of type -

just started learning spring. trying learn jpa creating person class, personrepository, persondao , main. i've looked on stackoverflow answers think did right... exception:

exception in thread "main" org.springframework.beans.factory.nosuchbeandefinitionexception: no qualifying bean of type 'beans.persondao' available @ org.springframework.beans.factory.support.defaultlistablebeanfactory.getbean(defaultlistablebeanfactory.java:353) @ org.springframework.beans.factory.support.defaultlistablebeanfactory.getbean(defaultlistablebeanfactory.java:340) @ org.springframework.context.support.abstractapplicationcontext.getbean(abstractapplicationcontext.java:1090) @ com.example.srpingdatajpa.main.main(main.java:15)

this classes:

person.class:

package beans;    import javax.persistence.column;  import javax.persistence.entity;  import javax.persistence.id;  import javax.persistence.table;    @entity  @table(name="workers")  public class person {    	@id  	@column(name="name")  	private string name;  	  	public person(string name) {  		this.name = name;  	}    	public string getname() {  		return name;  	}    	public void setname(string name) {  		this.name = name;  	}    	@override  	public string tostring() {  		return "person [name=" + name + "]";  	}  	  }

personrepo.class:

package beans;    import java.util.list;    import org.springframework.data.repository.crudrepository;  import org.springframework.stereotype.repository;    @repository  public interface personrepo extends crudrepository<person, string>{  	  	 list<person> findbyname(string name);  	  }

persondao.class:

package beans;    import java.util.list;    import org.springframework.beans.factory.annotation.autowired;  import org.springframework.stereotype.repository;    @repository  public class persondao {  	  	@autowired  	private personrepo personrepo;  	  	public persondao() {  	}  	  	public void createperson(person person){  		personrepo.save(person);  	}  	  	public list<person> find(string name){  		return personrepo.findbyname(name);  	}  }

main.class:

package com.example.srpingdatajpa;    import javax.transaction.transactional;    import org.jboss.jandex.main;  import org.springframework.boot.springapplication;  import org.springframework.context.applicationcontext;    import beans.persondao;    @transactional  public class main {  	public static void main(string[] args) {  		applicationcontext context = springapplication.run(main.class, args);  		persondao persondao = context.getbean(persondao.class);  		  		system.out.println(persondao .find("daniel"));  	}  }

any guys?

put @springbootapplication annotation in main class, work.

wiki