如果mybatis中的输入为空，如何使null must出错？

Question

我试图插入空数据，它必须出错，但它仍然在保存。如果为空，我尝试try/cath和if语句仍然不起作用。有人能建议如何做吗？

此图像中的输出RPCbloom

这个项目是带有GRPC和MyBatis的Spring Boot。

package com.cartservice.Repository;

import java.util.List;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Options;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import com.cartservice.Model.Client;
import com.cartservice.Model.ProductEntity;
import com.grpcserver.product.ProductServer.Product;

@Mapper
public interface ProductDAO {
    
    
    @Insert("INSERT INTO tb_product(purchase_item,  productname, productbrand,productprice,productdescription,productquantity,productexpirationdate) " +
              " VALUES (#{purchase_item}, #{productname}, #{productbrand}, #{productprice}, #{productdescription}, #{productquantity}, #{productexpirationdate} )")
@Options(useGeneratedKeys = true, keyColumn = "purchase_item", keyProperty = "purchase_item")
    public int insert(ProductEntity  productEntity);
    
    
    
     
}

    @Override
    public void insert(Product request, StreamObserver<APIResponse> responseObserver) {

    
    ProductEntity productEntity = new ProductEntity();

    
    productEntity.setPurchase_item(request.getPurchaseItem());
    productEntity.setProductname(request.getProductname());
    productEntity.setProductbrand(request.getProductbrand());
    productEntity.setProductprice(request.getProductprice());
    productEntity.setProductdescription(request.getProductdescription());
    productEntity.setProductquantity(request.getProductquantity());
    productEntity.setProductexpirationdate(dateConvert.getDateFromDateProto(request.getProductexpirationdate()));


    productServiceImpl.saveDataFromDTO(productEntity);
    APIResponse.Builder  responce = APIResponse.newBuilder();
    responce.setResponseCode(0).setResponsemessage("Succefull added to database " +productEntity);
    
    responseObserver.onNext(responce.build());
    responseObserver.onCompleted(); 
        
    
    
        
    }

Answer 1

修复我使用GRPC“hasField”

有关在protobuffers中处理空值的更多信息