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作为 GRPC api 的一部分，我正在尝试将 proto 自动生成的类映射到 pojo。这是 .proto 文件

message AccountModelProto
{
 repeated VerificationModelProto verification = 1;
}
message VerificationModelProto
{
    string status = 1;
    string comment = 2;
    string verificationType = 3;
    repeated VerificationAttributeModelProto verificationAttributes = 4;
}
message VerificationAttributeModelProto
{
    string type = 1;
    string label = 2;
    bool attributeStatus = 3;
}

上述代码的映射器是。我根据它参考了 mapstruct 提供的示例我不需要提供 VerificationModelProto 到 List 的显式映射但是我得到编译器错误

错误：无法将属性“集合验证”映射到“VerificationModelProto 验证列表”。考虑声明/实现一个映射方法：“VerificationModelProto map(Collection value)”。

@Mapping(source = "verification", target = "verificationList", qualifiedByName = "verificationModelToVerificationProtoMapping")
    AccountModelProto map(AccountModel accountModel);

@Named("verificationModelToVerificationProtoMapping")
default VerificationModelProto map (VerificationModel verificationModel)
{
    VerificationModelProto.Builder builder = VerificationModelProto.newBuilder()
                .setComment(verificationModel.getComment())
                .setStatus(verificationModel.getStatus().toString())
                .setVerificationType(verificationModel.getVerificationType());

    for(VerificationAttributeModel verificationAttributeModel: verificationModel.getVerificationAttributes())
    {
            builder.addVerificationAttributes(getVerificationAttributeBuilder(verificationAttributeModel));
    }
    return builder.build();
}

default VerificationAttributeModelProto getVerificationAttributeBuilder(VerificationAttributeModel verificationAttributeModel)
{
     VerificationAttributeModelProto.Builder builder = VerificationAttributeModelProto.newBuilder()
                .setAttributeStatus(verificationAttributeModel.getAttributeStatus())
                .setType(verificationAttributeModel.getType())
                .setLabel(verificationAttributeModel.getLabel());

   return builder.build();
}

如何度过这个难关。我将 CollectionMappingStrategy 添加为 CollectionMappingStrategy.ADDER_PREFERRED。

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