I'm recieving unformatted XML strings, which must be formatted for some tasks.

Let's say I have the following input:

<phoneDetails><name>My Phone X</name><displaySize>920x480px</displaySize></phoneDetails>

My expected output would be:

<phoneDetails>
    <name>My Phone X</name>
    <displaySize>920x480px</displaySize>
</phoneDetails>

I have already tried to serialize the unformatted string in an object using JacksonXml and then deserializing it back to a formatted string.

<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-xml</artifactId>
</dependency>

Anyway, this didn't solve my problem, since the XML element names can be different. For example the XML element name could also have the name name-for-other-purpose. This way it would be very painful.

Does anybody know how I could solve that problem? Maybe using REGEX or something else?

I highly appreciate any kind of help, cheers!

First try of importing the XML string as regular object.

I created this class, which holds the inline XML string.

public class InlineString {

    public String content;

    public InlineString (String content) {
        this.content = content;
    }

}

After that I tried to pretty print it.

InlineString obj = new InlineString("<phoneDetails><name>My Phone X</name><displaySize>920x480px</displaySize></phoneDetails>");

ObjectMapper objectMapper = new XmlMapper();
objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
String xml = objectMapper.writeValueAsString(command);

But the output is not the same as expected, probably because of the regular object.

<InlineString>
  <content>&lt;phoneDetails>&lt;name>My Phone X&lt;/name>&lt;displaySize>920x480px&lt;/displaySize>&lt;/phoneDetails></content>
</InlineString>

CodePudding user response：

1. Create a TransformerFactory using TransformerFactory.newInstance().

2. Create an identity transformer using factory.newTransformer().

3. Set the output properties on the transformer using transformer.setOutputProperty(OutputKeys.INDENT, "yes")

4. Create a source: new StreamSource(new StringReader(inputXmlString))

5. Create a result: new StreamResult(new StringWriter())

6. Do the transformation using transformer.transform(source, result)

CodePudding user response：

The JacksonXML pretty option should give you the formatting you're looking for, but you will also need to edit the object before serializing it again.