Get text between two tags using substringBetween() method of StringUtils

I have an input like:

<address>
    <addressLine>280 Flinders Mall</addressLine>
    <geoCodeGranularity>PROPERTY</geoCodeGranularity>
</address>
<address type="office">
    <addressLine>IT Park</addressLine>
    <geoCodeGranularity>office Space</geoCodeGranularity>
</address>

I want to capture everything between the address tag.

I tried:

File file = new File("test.html");
String testHtml = FileUtils.readFileToString(file); 
String title = StringUtils.substringBetween(testHtml, "<address>", "</address>");

This does not work for all the cases because the address tag may contain some attribute inside. Please help how to get text for such string.

Solution

You can convert the file into String and can determine the start and end index of the desired sub-string as below:

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

public class Address {

    public static void main(String[] args) throws IOException {

        // Complete File Path
        File dir =
            new File("\\..\\..\\Test.html");

        // Convert File Data As String
        String data =
            new String(
                Files.readAllBytes(Paths
                    .get(dir
                        .getAbsolutePath())));

        // For Loop to get all the <address> tags in the file.
        for (int index = data.indexOf("<address"); index >= 0;) {

            // Start Index
            int startIndex = data.indexOf(">", index + 1);
            ++startIndex;

            // End Index
            int indexOfEnd = data.indexOf("</address>", startIndex + 1);

            String attributesString = data.substring(startIndex, indexOfEnd);
            // Replace below line with desired logic with calling trim() on the String attributesString
            System.out.println(attributesString);

            // Next Address will be after the end of first address
            index = data.indexOf("<address", indexOfEnd + 1);
        }
    }
}