Ejemplo de código JsonParser.gson.fromJson

Ejemplo 1: gson parse json

Gson gson = new Gson();

// 1. Java object to JSON file
gson.toJson(obj, new FileWriter("C:\fileName.json"));

// 2. Java object to JSON string
String json = gson.toJson(obj);

Ejemplo 2: gson parse json

Gson gson = new Gson();

// 1. JSON file to Java object
Object object = gson.fromJson(new FileReader("C:\fileName.json"), Object.class);

// 2. JSON string to Java object
String json = "{'name' : 'mkyong'}";
Object object = gson.fromJson(json, Staff.class);

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