刚开始学习Spring。试图通过创建一个人员类来学习JPA，人员库、人员库和主。我已经在StackOverflow上寻找答案，但我认为我做得一切都很好…这是例外：

线程"main"org. springframe.bean.Factory.NoSuchBeanDefitionException中的异常：org.springframework.beans.factory.support中没有"bean.PhotoDAO"类型的限定bean。DefaultListableBeanFactory.getBean（DefaultListableBeanFactory.java:353）位于org.springframework.beans.factory.support。DefaultListableBeanFactory.getBean（DefaultListableBeanFactory.java:340）位于org.springframework.context.support。AbstractApplicationContext.getBean（AbstractApplicationContext.java:1090）位于com.example.SrpingDataJPA.main（main.java:15）

这是我的课程：

人.类：

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 + "]";
	}
	
}

类：

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);
	
}

人道课：

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"));
	}
}

有人帮忙吗伙计们？