修改后的改后的代码

public static JsonNode convertJsonToUnderline(JsonNode jsonNode){
if (!(jsonNode instanceof ObjectNode)){
return jsonNode;
}
ObjectNode result = objectMapper.createObjectNode();
jsonNode.properties().forEach((entry -> {
String key = entry.getKey();
result.set(StrUtil.toUnderlineCase(key), convertJsonToUnderline(entry.getValue()));
}));
return result;
}


原始数据：{"code":0,"data":{"myStartCount":35,"todoCount":0,"doneCount":0},"msg":""}
转换后的数据：
{
"code" : 0,
"data" : {
"my_start_count" : 35,
"todo_count" : 0,
"done_count" : 0
},
"msg" : ""
}