Java: Writing a DOM to an XML file (formatting issues)

Question

I'm using `org.w3c` `XML API` to open an existing `XML` file. I'm removing some nodes , and I'm adding others instead. The problem is that the new nodes that are added are written one after the other, with no newline and no indentation what so ever. While it's true that the `XML` file is valid , it is very hard for a human to examine it. Is there anyway to add indentation , or at least a newline after each node?

Accepted Answer

I'm assuming that you're using a `Transformer` to do the actual writing (to a `StreamResult`). In which case, do this before you call `transform`:

```
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
```

Java: Writing a DOM to an XML file (formatting issues)

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