Access String Array in Sightly

StringArraySightly.java

ackage com.project.sightly;
 
import com.adobe.cq.sightly.WCMUse;
import org.apache.sling.commons.json.JSONObject;
 
import java.util.*;
 
public class JsonHelper extends WCMUse {
 
    private String[] json;
 
    @Override
    public void activate() throws Exception {
        json = this.get("json", String[].class);
    }
 
    public List<Map<String, String>> getValues() {
        List<Map<String, String>> results = new ArrayList<Map<String, String>>();
 
        if (json != null) {
            for (String value : json) {
                Map<String, String> column = parseItem(value);
                if (column != null) {
                    results.add(column);
                }
            }
        }
 
        return results;
    }
 
    private Map<String, String> parseItem(String value) {
        Map<String, String> columnMap = new HashMap<String, String>();
 
        try {
            JSONObject parsed = new JSONObject(value);
            for (Iterator<String> iter = parsed.keys(); iter.hasNext();) {
                String key = iter.next();
                String innerValue = parsed.getString(key);
                columnMap.put(key, innerValue);
            }
 
            return columnMap;
        } catch (Exception e) {
 
        }
 
        return null;
    }
}
You can use it like this:

<div data-sly-use.multi="${'com.project.sightly.MultiField' @ json=properties.items}">
    <div data-sly-repeat="${multi.values}">
        <h2>${item['linkLabel']} - ${item['anchor']}</h2>
    </div>
</div>