String、JsonObject、JavaBean 互相转换
User user = new Gson().fromJson(jsonObject, User.class);
User user = new Gson().fromJson(string, User.class);
String string = new Gson().toJson(user);
JsonObject jsonObject = new Gson().toJsonTree(user).getAsJsonObject();
JsonObject jsonObject = new JsonParser().parse(string).getAsJsonObject();
String、JsonArray、List互相转换
Type type =new TypeToken<List<User>>() {
}.getType();
List<User> userList = gson.fromJson(string, type);
List<User> userList = gson.fromJson(jsonArray, type);
String string = new Gson().toJson(userList);
JsonArray jsonArray = new Gson().toJsonTree(userList, type).getAsJsonArray();
JsonArray jsonArray = new JsonParser().parse(string).getAsJsonArray();