2.24

Repository接口TransactionRepository.java

import org.springframework.data.jpa.repository.JpaRepository;

public interface TransactionRepository extends JpaRepository<Transaction, Long> {
} import org.springframework.data.jpa.repository.JpaRepository;

public interface TransactionRepository extends JpaRepository<Transaction, Long> {
}

服务类TransactionService.java

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class TransactionService {

    @Autowired
    private TransactionRepository transactionRepository;

    public List<Transaction> getAllTransactions() {
        return transactionRepository.findAll();
    }

    public Transaction addTransaction(Transaction transaction) {
        return transactionRepository.save(transaction);
    }
} import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class TransactionService {

    @Autowired
    private TransactionRepository transactionRepository;

    public List<Transaction> getAllTransactions() {
        return transactionRepository.findAll();
    }

    public Transaction addTransaction(Transaction transaction) {
        return transactionRepository.save(transaction);
    }
}