Question

我使用commercehub-oss gradle插件通过Avro协议生成Java类。

这是我的.avdl文件：

@namespace("com.abc.xyz")
protocol XYZ_Protocol_v1 {
  record VendorItemInfo {
      string vendorItemId;
      long price;
      string deliveryChargeType;
  }

  record XyzDto {
    array<VendorItemInfo> vendorItemInfos;
  }
}

基于commercehub-oss wiki，我运行$ gradle build来根据我的.avdl文件生成java文件。

然后当我向我的服务发出请求时，我得到了这个错误堆栈跟踪：

java.lang.ClassCastException: com.abc.xyz.domain.dto.VendorItemInfo cannot be cast to org.apache.avro.generic.IndexedRecord
    org.apache.avro.generic.GenericData.getField(GenericData.java:666)
    org.apache.avro.generic.GenericData.getField(GenericData.java:681)
    org.apache.avro.generic.GenericDatumWriter.writeField(GenericDatumWriter.java:151)
    org.apache.avro.specific.SpecificDatumWriter.writeField(SpecificDatumWriter.java:90)
    org.apache.avro.generic.GenericDatumWriter.writeRecord(GenericDatumWriter.java:143)
    org.apache.avro.generic.GenericDatumWriter.writeWithoutConversion(GenericDatumWriter.java:105)
    org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:73)
    org.apache.avro.generic.GenericDatumWriter.writeArray(GenericDatumWriter.java:179)
    org.apache.avro.generic.GenericDatumWriter.writeWithoutConversion(GenericDatumWriter.java:107)
    org.apache.avro.specific.SpecificDatumWriter.writeField(SpecificDatumWriter.java:87)
    org.apache.avro.generic.GenericDatumWriter.writeRecord(GenericDatumWriter.java:143)
    org.apache.avro.generic.GenericDatumWriter.writeWithoutConversion(GenericDatumWriter.java:105)
    org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:73)
    org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:60)

任何想法如何解决这个问题？

无法将生成的Avro类强制转换为org.apache.avro.generic.IndexedRecord

0 个答案: