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                聲明:所有權利保留。 轉載必須說明出處:http://blog.csdn.net/cartzhang/article/details/41009343 UE4的Json的解析博客地址: http://blog.csdn.net/cartzhang/article/details/43794409 [UE4的Json讀寫方式<二>](http://blog.csdn.net/cartzhang/article/details/43794409) **UE4 的json讀寫方式** JSON 的解析有很多開源庫。UE4的JSON使用在代碼的Public->Serialization中。 頭文件包含:Json.h Json的讀寫創建是static形成的單例模式,有JsonWrite或JsonReader的Factory來創建(Create)出來。 以讀方式為例子: 讀的代碼: ~~~ 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); 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 has what we want JsonWriter->Close(); return JsonStr; ~~~ 寫的對象可以為Objcet或Array數組,value值。 一個讀寫過程中,Start和End要對應,因為Json格式的要求,要不我怎么知道哪里是一個對象或數組的結尾呢。這樣就會造成混亂的。 所有的讀寫都在close之后才真正的完成處理。 看網上例子很少,自己貼個,自己也方便! ---------------------------- 若有問題,請隨時聯系! 非常感謝!
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