如何在XML文件中构建多维数组？

I have a multi-dimensional array such as:

我有一个多维数组,如:

String[][] greatCities = new String[2][2];
greatCities[0][0] = "Vancouver";
greatCities[0][1] = "Charlottetown";
greatCities[1][0] = "Zürich";
greatCities[1][1] = "Bern";

Now I'm looking for a good way to save the structure (no code) this array to a xml file. Best solution I have so far is:

现在我正在寻找一种将这个数组的结构(无代码)保存到xml文件的好方法。我到目前为止的最佳解决方案是:

<GreatCities>
  <Item index0="0" index1="0">Vancouver</Item>
  <Item index0="0" index1="1">Charlottetown</Item>
  <Item index0="1" index1="0">Zürich</Item>
  <Item index0="1" index1="1">Bern</Item>
</GreatCities>

Does anyone have a better solution?

有没有人有更好的解决方案?

3 个解决方案

#1

As its effectively an array of arrays...

因为它实际上是一个数组数组......

<GreatCity index =0>
   <Name index="0">Vancouver</Name>
   <Name index="1">Charlottetown</Name>
</GreatCity>
etc...

#2

<GreatCities>
  <Items index="0">
    <Item index="0">Vancouver</Item>
    <Item index="1">Charlottetown</Item>
  </Items>
  <Items index="1">
    <Item index="0">Zürich</Item>
    <Item index="1">Bern</Item>
  </Items>
</GreatCities>

#3

Your solution may be compact enough, but I think is complicated for the deserialization (e.g. retrieve the array from the xml). In fact, you should know as soon what is the size of the array: to do that you must scan the whole xml document. I'd rather prefer a structure ordered, without attribute indexes:

您的解决方案可能足够紧凑,但我认为反序列化很复杂(例如从xml中检索数组)。实际上,您应该尽快知道数组的大小:要做到这一点,您必须扫描整个xml文档。我更喜欢没有属性索引的有序结构:

<GreatCities>
  <GreatCity>
    <Name>Vancouver</Name>
    <Name>Charlottetown</Name>
  </GreatCity>
  <GreatCity />
  <GreatCity>
    <Name>Zürich</Name>
    <Name/>
    <Name>Bern</Name>
  </GreatCity>
</GreatCities>

In that sample I have inserted two empty elements to point and empty row/cell. At this point, you may scan the xml document by filling the jagged array.

在该示例中,我插入了两个空元素来指向并清空行/单元格。此时,您可以通过填充锯齿状阵列来扫描xml文档。

#1