抛出'Json :: LogicError'的实例

问题描述

使用jsoncpp创建JSON对象，并按如下所示添加到数组中时出错。

Json::Value zone1;
Json::Value coord;
zone1["zoneID"] = "shop1";
zone1["stamp"] = "xxxxx";
zone1["gridSizeX"] = "50";
zone1["gridSizeY"] = "20";
zone1["gridScale"] = "0.5";
zone1["gridOrigin"] = {"28.5","12.6"};

此行zone1["gridOrigin"] = {"28.5","12.6"};具有以下错误。

has terminate called after throwing an instance of 'Json::LogicError'
  what():  in Json::Value::duplicateAndPrefixStringValue(): length too big for prefixing

如何修改？

解决方法

我已经更新了以下内容，并且可以使用。

Json::Value zone1;
Json::Value coord;
Json::Value gridOrigin;
zone1["zoneID"] = "shop1";
zone1["stamp"] = "xxxxx";
zone1["gridSizeX"] = "50";
zone1["gridSizeY"] = "20";
zone1["gridScale"] = "0.5";
gridOrigin.append("28.5"); gridOrigin.append("12.6");
zone1["gridOrigin"] = gridOrigin;