Java Json字符串提取数字并替换特定文本

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

public class JsonUtils {
    public static int extractNumberFromJson(String jsonString, String fieldName) {
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode rootNode = objectMapper.readTree(jsonString);
            JsonNode fieldNode = rootNode.get(fieldName);
            if (fieldNode != null && fieldNode.isNumber()) {
                return fieldNode.asInt();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return 0; // 默认返回0，表示未找到或解析失败
    }
}

public class JsonUtils {
    public static String replaceTextInJson(String jsonString, String targetText, String replacement) {
        return jsonString.replace(targetText, replacement);
    }
}