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package com.example.demo.repository;
import com.example.demo.model.Menu;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Query;
import java.util.List;
public interface MenuRepository extends JpaRepository<Menu,String>, JpaSpecificationExecutor<Menu> {
List<Menu> findByFenleiAndPinmu(String fenlei, String pinmu);
@Query("select distinct fenlei from com.example.demo.model.Menu")
List<String> getFenlei();
@Query("select distinct pinmu from com.example.demo.model.Menu m where m.fenlei=?1")
List<String> getPinmuByFenlei(String fenlei);
}