UE4 JSON read-write method

UE4 JSON read-write method


There are many open source libraries for JSON parsing. UE4 JSON is used in the public->serialization of the code.

Header file contains: Json.h

the Read and write creation of JSON is a single mode of static formation, with the Jsonwrite or Jsonreader factory to create.

Take the reading as an example:

Read the code:

float _score = Myplayerstate->getscore (); Fstring _player_name = Myplayerstate->getname (); int _kills = Myplayerstate->getkills (); int _deaths = Myplayerstate->getdeaths (); Fstring Jsonstr; tsharedref< Tjsonwriter<tchar, tcondensedjsonprintpolicy<tchar> > > jsonwriter = TJsonWriterFactory <tchar, tcondensedjsonprintpolicy<tchar> >::create (&JSONSTR); <span style= "White-space:pre" > </span>jsonwriter->writeobjectstart (); Jsonwriter->writevalue (TEXT ("name"), _player_name); Jsonwriter->writevalue (TEXT ("Score"), _score); Jsonwriter->writevalue (TEXT ("deaths"), _deaths); Jsonwriter->writevalue (TEXT ("Kills"), _kills) <span style= "White-space:pre" ></span>jsonwriter- >writeobjectend ();//Close The writer and finalize the output such that jsonstr have what we wantjsonwriter->close (); return jsonstr;

The Write object can be an array of objcet or arrays, value values.

A read and write process, start and end to correspond, because of the JSON format requirements, or how I know where an object or the end of an array. This can cause confusion.

All reads and writes are completed after close.

See the online example very few, oneself affixed a, oneself also convenient!

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UE4 JSON read-write method