如何使用Gson解析多种类型的负载

<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.7</version>
</dependency>

{
  "type": "person",
  "name": "John",
  "age": 30
}

String json = "{\"type\":\"person\",\"name\":\"John\",\"age\":30}";
Gson gson = new Gson();
Person person = gson.fromJson(json, Person.class);

{
  "type": "person",
  "name": "John",
  "age": 30
}

{
  "type": "animal",
  "species": "cat",
  "color": "black"
}

String json = "{\"type\":\"person\",\"name\":\"John\",\"age\":30}";
Gson gson = new Gson();
JsonObject jsonObject = gson.fromJson(json, JsonObject.class);
String type = jsonObject.get("type").getAsString();

if (type.equals("person")) {
    Person person = gson.fromJson(json, Person.class);
    // 处理Person类型的负载
} else if (type.equals("animal")) {
    Animal animal = gson.fromJson(json, Animal.class);
    // 处理Animal类型的负载
}