如何在java中从带有转义"\“的json数据中提取url？

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUrlParser {
    public static void main(String[] args) {
        String jsonString = "{\"url\": \"http:\\/\\/example.com\\/path\\/file.txt\"}";

        try {
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode jsonNode = objectMapper.readTree(jsonString);

            String url = jsonNode.get("url").asText();
            url = url.replace("\\", ""); // 去除转义字符

            System.out.println("提取到的URL: " + url);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}