jpa repositofy findall() returns empty list - spring-boot

Question

I'm practicing making web pages using spring boot.
I created an h2 DB and connected it, and I want to show the name properties of the members table as a list on my web page.
I created the findall() method, but only an empty list is returned. What's wrong with my code?
my web page
MemberRepository
package com.example.testproject.store.h2.repository;
import com.example.testproject.store.h2.domain.Members;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
#Repository
public interface MemberRepository extends JpaRepository<Members, Integer> {
}
MemberService
package com.example.testproject.store.h2.service;
import com.example.testproject.store.h2.domain.Members;
import java.util.List;
public interface MemberService {
List<Members> getAll();
}
MemberServiceImpl
package com.example.testproject.store.h2.service;
import com.example.testproject.store.h2.domain.Members;
import com.example.testproject.store.h2.repository.MemberRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.lang.reflect.Member;
import java.util.List;
#Service(value = "memberServiceImpl")
public class MemberServiceImpl implements MemberService {
#Autowired
private MemberRepository memberRepository;
public List<Members> getAll(){
return memberRepository.findAll();
}
}
MemberController
package com.example.testproject.controller;
import com.example.testproject.store.h2.domain.Members;
import com.example.testproject.store.h2.service.MemberService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
#RestController
public class MemberController {
#Autowired
private MemberService memberService;
#GetMapping(value = "/members")
public List<Members> getAll() {
List<Members> users = memberService.getAll();
return users;
}
/*#GetMapping(value = "/members")
public List<Members> getAll() throws Exception {
return memberService.getAll();
}*/
}
Members(Entity)
package com.example.testproject.store.h2.domain;
import jakarta.persistence.*;
#Entity
#Table(name = "members")
public class Members {
#Id
private int id;
#Column
private String name;
}
I want to show the name properties of the members table as a list on my web page.

Answer 1

You have missed the getter setter method in entity class either you need to 1:-define getter setter method for each field or
2:-you need to add lombook dependency in pom.xml file and add #Data annootation on top of entity class so that when spring uses your entity can set and get the value from database and if you dontot want to give id explicitly then add #GeneratedValue(strategy=GenerationType.AUTO) so that spring automatically increase you id

Answer 2

I think you missed getters and setters in your Entity
Class just add them by using #Data annotation and try again.

Answer 3

You missed getters and setters for the fields in your Entity
You do not need any library, you can write it by yourself.
Otherwise, even if you use lombok, you should avoid to use #Data annotation on Entity, because it could lead to errors with default implementation of equals and hashCode. Instead you can use annotations #Getter and #Setter on the class.