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Java Spark流式数据集未正确序列化数据_Java_Apache Spark_Apache Spark Sql_Spark Streaming - Fatal编程技术网

Java Spark流式数据集未正确序列化数据

Java Spark流式数据集未正确序列化数据,java,apache-spark,apache-spark-sql,spark-streaming,Java,Apache Spark,Apache Spark Sql,Spark Streaming,我在spark structured streaming中有以下代码 Dataset<Person> personDf = dataDf.map( (MapFunction<Data, Person>) data -> { Person person = new Person; person.setName(data.getName()); Details details = new Details

我在spark structured streaming中有以下代码

Dataset<Person> personDf = dataDf.map(
       (MapFunction<Data, Person>) data -> {
         Person person = new Person;
         person.setName(data.getName());
         Details details = new Details();
         details.setAge(data.getAge());
         details.setGender(data.getGender());
         person.setDetails(details);
         return  person;
       }, Encoders.bean(Person.class));


          personDf
          .writeStream()
          .format("parquet")
          .start("/home/hadoop/test/");



personDf
时上面代码的问题我只能看到一个名为name的列,拼花地板中缺少details列,我这里缺少什么,有人能帮我吗?

你有什么解决办法吗?我也面临类似的问题。如果你能分享你如何解决这个问题的见解,那会很有帮助。你有什么解决办法吗?我也面临类似的问题。如果您能分享您如何解决此问题的见解,将非常有帮助
Person Object

public class Person implements serializable{

  private String name;

  private Details details;

  //Getters & setters
//Hashcode and equals

}

Details Object

public class Details implements serializable{

  private String age;

  private String gender;

  //Getters & setters
//Hashcode and equals

}