Spring Data JPA 는 JPQL 을 사용 하여 네 이 티 브 SQL 과 조회 하 는 동작 입 니 다.

package com.pjb.jpauserdemo.dao; 
import com.pjb.jpauserdemo.entity.UserInfo;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;
import java.util.List;
 
/**
 *            
 *   JPQL  
 * @author pan_junbiao
 **/
@Repository
public interface UserJpqlDao extends JpaRepository<UserInfo,Integer>
{
    /**
     *       ，      
     */
    @Query("SELECT u FROM UserInfo u WHERE u.userName = ?1")
    public UserInfo getUserInfoByName(String name);
 
    /**
     *       ，        
     */
    @Query("SELECT u FROM UserInfo u WHERE u.userName like %:name%")
    public List<UserInfo> getUserListByName(String name);
 
    /**
     *       
     */
    @Modifying
    @Query("UPDATE UserInfo u SET u.userName = :name WHERE u.userId = :id")
    public int updateUserName(@Param("id")int userId, @Param("name")String userName);
}

package com.pjb.jpauserdemo.dao;
import com.pjb.jpauserdemo.entity.UserInfo;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
 
/**
 *               
 *     SQL  
 * @author pan_junbiao
 **/
@Repository
public interface UserSqlDao extends JpaRepository<UserInfo,Integer>
{
    /**
     *     ID，      
     */
    @Query(value = "SELECT * FROM tb_user WHERE user_id = :id",nativeQuery = true)
    public UserInfo getUserById(@Param("id")int userId);
 
    /**
     *       ，        
     */
    @Query(value = "SELECT * FROM tb_user WHERE user_name LIKE %:userName%",nativeQuery = true)
    public List<UserInfo> getUserListByName(@Param("userName")String userName);
 
    /**
     *       
     */
    @Modifying
    @Query(value = "UPDATE tb_user SET user_name = :name WHERE user_id = :id",nativeQuery = true)
    public int updateUserName(@Param("id")int userId, @Param("name")String userName);
}

@Query(value = "select bill.id_ as id, bill.created_date as date, bill.no, lawyer_case .case_no as caseNo, " +
            "lawyer_case .case_name as caseName, customer.no as customerNo, customer.cn_name as customerName, " +
            "bill.total_expense_after_tax, bill.collected_money, bill.book_ticket_amount, bill.version " +
            "e1.name as creator, bill.status" +
            "from bill " +
            "left join lawyer_case on lawyer_case .case_no=bill.case_no " +
            "left join customer on customer.no=bill.customer_no " +
            "left join employee e1 on e1.id_=bill.creator " +
            "where IF (?1!='', customer_no=?1, 1=1) " +
            "and   IF (?2!='', case_no=?2, 1=1) " +
            "and   IF (?3!='', status=?3, 1=1) " +
            "and   IF (?4!='', creator'%',?4,'%')), 1=1) " +
            "and   create_by=?5 " +
            "ORDER BY ?#{#pageable} ",
            countQuery = "select count(*) " +
                    "from bill " +
                    "left join lawyer_case on lawyer_case .case_no=bill.case_no " +
                    "left join customer on customer.no=bill.customer_no " +
                    "left join employee e1 on e1.id_=bill.creator " +
                    "where IF (?1!='', customer_no=?1, 1=1) " +
                    "and   IF (?2!='', case_no=?2, 1=1) " +
                    "and   IF (?3!='', status=?3, 1=1) " +
                    "and   IF (?4!='', creator'%',?4,'%')), 1=1) " +
                    "and   create_by=?5 "+
                    "ORDER BY ?#{#pageable} ",
            nativeQuery = true)
    Page<Object[]> findAllBill(String customerNo, String caseNo, Integer status, String creator,
                               String createBy, Pageable pageable);

/**
* pageInfos:        。
* pageable：   pageable.
* totalPage:    SQL      。
*             pageDTO。
*/
private Page<T> convertForPage(List<T> pageInfos, Pageable pageable, Integer totalPage) {
        return new PageImpl<>(pageInfos, pageable, totalPage);
    }