如何获取JsonCPP值作为字符串? [英] How to get JsonCPP values as strings?

问题描述

我正在使用 JsonCpp 解析json数据.我真的不需要了解数据，只需要打印出一些属性及其值即可.这很难做到.首先，我需要知道值是什么类型，然后获取值，然后再次将其转换为字符串！有样式的作家，但我不想使用它，因为它在结尾处附加了一些CRLF.

I am parsing json data using JsonCpp. I don't really need to understand the data, i just need to print out some properties and their values out. It somehow is hard to do. First I need to know what type the value is and then get the value and then convert it to string again! There is a styled writer but I don't want to use it as it appends some CRLF at the end.

我做这样的事情

CJsonHelper::getUInt(Json::Value &root, std::string key){
    return root.get(key, 0-1).isInt() ? root.get(key, 0-1).asUInt() : 0-1;
}

我可以只编写一个函数来获取该函数的所有属性，而实际上并不关心类型等吗?

Could I just write a single function to get all the properties with just that function which doesn't really care about the types etc?

推荐答案

您可以轻松创建自己的作家，该作家可以做任何您想做的事情.看一下StyledWriter的代码.您不喜欢的CRLF来自StyledWriter::Write.您可以创建自己的不具有CRLF的writer类.

You can trivially create your own writer that does whatever you want. Have look at the code for StyledWriter. The CRLF's you don't like come from StyledWriter::Write. You can create your own writer class that doesn't have those CRLF's.

如果您不介意修改库，请更改编写器，以使writeValue之类的功能受到保护，而不是私有的.然后，您可以使用不同的Write函数从StyledWriter派生您自己的类，并且仍然使用各种write*函数进行转换的详细信息.

If you don't mind modifying the library, change the writer so that functions like writeValue are protected rather than private. Then you can derive your own class from StyledWriter with a different Write function and still use the various write* functions to do the details of the conversion.

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