jackson替换对应key值

private static final ObjectMapper MAPPER = new ObjectMapper();

public static JsonNode stringToJsonNode(String jsonString) {
    if (StringUtils.isBlank(jsonString)) {
        return null;
    }
    try {
        return MAPPER.readTree(jsonString);
    } catch (Exception e) {
        LOGGER.error("json convert exception", e);
    }

    return null;
}

public static void setJsonNodeValue(JsonNode node, String attrs, JsonNode data) {
    int index = attrs.indexOf('.');
    if (index == -1) {
        ObjectNode node1 = (ObjectNode) node;
        node1.set(attrs, data);
    } else {
        String s1 = attrs.substring(0, index);
        String s2 = attrs.substring(index + 1);
        setJsonNodeValue(getJsonNode(node, s1), s2, data);
    }
}

public static String replaceJsonVal(String key, String newVal, String json){
    JsonNode jsonNode = JsonUtil.stringToJsonNode(json);
    JsonNode newNode = new TextNode(newVal);
    JsonNode parent = jsonNode.findParent(key);
    JsonUtil.setJsonNodeValue(parent, key, newNode);
    return jsonNode.toString();
}

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

        String json = "{\"name\": \"张三\", \"phone\": \"13120928116\", \"driver\": \"\", \"gender\": \"1\", \"bankCity\": \"上海\", \"bankCardNo\": \"1\"}";

        String str = replaceJsonVal("bankCardNo", "112233", json);
        System.out.println(str);

    }