Gson解析纯Json数组

Posted 2020-07-23 to be crazy

[
  {
    "type": "123",
    "value": 123
  },
  {
    "type": "234",
    "value": 234
  }
]

import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import com.google.gson.Gson;
import com.google.gson.JsonObject;
import com.google.gson.reflect.TypeToken;

public class DataFactory
{
    public static Object getInstanceByJson(Class<?> clazz, String json)
    {
        Object obj = null;
        Gson gson = new Gson();
        obj = gson.fromJson(json, clazz);
        return obj;
    }

    /**
     * @author I321533
     * @param json
     * @param clazz
     * @return
     */
    public static <T> List<T> jsonToList(String json, Class<T[]> clazz)
    {
        Gson gson = new Gson();
        T[] array = gson.fromJson(json, clazz);
        return Arrays.asList(array);
    }

    /**
     * @param json
     * @param clazz
     * @return
     */
    public static <T> ArrayList<T> jsonToArrayList(String json, Class<T> clazz)
    {
        Type type = new TypeToken<ArrayList<JsonObject>>()
        {}.getType();
        ArrayList<JsonObject> jsonObjects = new Gson().fromJson(json, type);

        ArrayList<T> arrayList = new ArrayList<>();
        for (JsonObject jsonObject : jsonObjects)
        {
            arrayList.add(new Gson().fromJson(jsonObject, clazz));
        }
        return arrayList;
    }
}