完成Bean改造

src/main/java/net/alawn/bill/repository/BookRepo.java

@@ -2,7 +2,12 @@ package net.alawn.bill.repository;
 
 import net.alawn.bill.entity.po.Book;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
 
 /**
  * @Author: Alawn
@@ -10,7 +15,13 @@ import org.springframework.stereotype.Repository;
  * @Date: Create in 11:14 2019-05-23
  */
 
+@Transactional
 @Repository
 public interface BookRepo extends JpaRepository<Book, Long> {
 
+    List<Book> findByUserId(long userId);
+
+    @Modifying
+    @Query(value = "update t_bill_books set total_amount = (select sum(amount) from t_bill_items where book_id = ?1) where id = ?1",nativeQuery = true)
+    void sumAmount(long bookId);
 }