BAEL-3335 example of reading request multiple times. removed spring boot and using spring-webmvc

mapstruct/src/main/java/com/baeldung/mapper/TransactionMapper.java

@@ -0,0 +1,23 @@
+package com.baeldung.mapper;
+
+import java.math.BigDecimal;
+import java.util.Collection;
+import java.util.List;
+
+import org.mapstruct.Mapper;
+
+import com.baeldung.dto.TransactionDTO;
+import com.baeldung.entity.Transaction;
+
+@Mapper
+abstract class TransactionMapper {
+
+    public TransactionDTO toTransactionDTO(Transaction transaction) {
+        TransactionDTO transactionDTO = new TransactionDTO();
+        transactionDTO.setUuid(transaction.getUuid());
+        transactionDTO.setTotalInCents(transaction.getTotal().multiply(new BigDecimal("100")).longValue());
+        return transactionDTO;
+    }
+
+    public abstract List<TransactionDTO> toTransactionDTO(Collection<Transaction> transactions);
+}