Question

我目前正在尝试什么都不做，比从一些列中获取所有行值并将它们加在一起。那部分工作正常，甚至一次成功：D。但是当删除数据并尝试再次运行作业时，我遇到了Casting错误。为了您的信息，我目前对此解决方案的尝试是：

从Excel读取数据（将所有内容转换为整数）=＆gt;选择所有重要字段（选择值）=＆gt;添加常量（追加结果字段）=＆gt; UDJC（从数据集中总结每一行）=＆gt;更新数据库

我不明白为什么，因为我使用的是所有整数。也许这里的某个人可以帮助我，我想这是我想念的蠢事。

我的用户定义的Java类代码如下所示

public boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException {
  if (first) {
    first = false;

    }



  Object[] r = getRow();

  if (r == null) {
    setOutputDone();
    return false;
  }

  // It is always safest to call createOutputRow() to ensure that your output row's Object[] is large
  // enough to handle any new fields you are creating in this step.
  r = createOutputRow(r, data.outputRowMeta.size());

  /* TODO: Your code here. (See Sample)

  // Get the value from an input field
  String foobar = get(Fields.In, "a_fieldname").getString(r);

  foobar += "bar";

  // Set a value in a new output field
  get(Fields.Out, "output_fieldname").setValue(r, foobar);

  */
  int result_value = 0;

  int value10  = get(Fields.In, "int_10").getInteger(r).intValue();
  int value20  = get(Fields.In, "int_20").getInteger(r).intValue();
  int value30  = get(Fields.In, "int_30").getInteger(r).intValue();
  int value40  = get(Fields.In, "int_40").getInteger(r).intValue();
  int value50  = get(Fields.In, "int_50").getInteger(r).intValue();
  int value60  = get(Fields.In, "int_60").getInteger(r).intValue();
  int value70  = get(Fields.In, "int_70").getInteger(r).intValue();
  int value80  = get(Fields.In, "int_80").getInteger(r).intValue();
  int value90  = get(Fields.In, "int_90").getInteger(r).intValue();
  int value100 = get(Fields.In, "int_100").getInteger(r).intValue();
  int value110 = get(Fields.In, "int_110").getInteger(r).intValue();
  int value120 = get(Fields.In, "int_120").getInteger(r).intValue();
  int value130 = get(Fields.In, "int_130").getInteger(r).intValue();
  int value140 = get(Fields.In, "int_140").getInteger(r).intValue();
  int value150 = get(Fields.In, "int_150").getInteger(r).intValue();
  int value160 = get(Fields.In, "int_160").getInteger(r).intValue();
  int value170 = get(Fields.In, "int_170").getInteger(r).intValue();
  int value180 = get(Fields.In, "int_180").getInteger(r).intValue();
  int value190 = get(Fields.In, "int_190").getInteger(r).intValue();
  int value200 = get(Fields.In, "int_200").getInteger(r).intValue();
  int value210 = get(Fields.In, "int_210").getInteger(r).intValue();
  int value220 = get(Fields.In, "int_220").getInteger(r).intValue();

  result_value = (value10 + value20 + value30 + value40 + value50 + value60 +
                 value70 + value80 + value90 + value100 + value110 + value120 +
                 value130 + value140 + value150 + value160 + value170 + value180 +
                 value190 + value200 + value210 + value220);


  get(Fields.Out, "neutral_or_personal").setValue(r, result_value);

  // Send the row on to the next step.
  putRow(data.outputRowMeta, r);

  return true;
}

Pentaho用户定义了Java类 - 数据类型转换错误

0 个答案: