GSON错误

错误为： com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2

    at com.google.gson.Gson.fromJson(Gson.java:815)

List<Test> uj = gson.fromJson(user, new TypeToken<List<Test>>(){}.getType());

Test uj = gson.fromJson(user, Test.class);