Gson解析工具类

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

import org.json.JSONArray;
import org.json.JSONException;
import java.util.ArrayList;
import java.util.List;

public class GsonUtils {

    //解析简单Json数据
    public static <T> T parseJson(String jsonData,Class<T> entityType){
        Gson gson=new Gson();
        T t=gson.fromJson(jsonData,entityType);
        return t;
    }

    //解析JsonArray数据
    public static <T> List<T> parseJsonArray(String jsonArrayData){
        Gson gson = new Gson();
        List<T> list=gson.fromJson(jsonArrayData,new TypeToken<List<T>>(){}.getType());
        return list;
    }

    //下面两种方法是解析JsonArray的自己写的方法，可用new TypeToken<List<T>>(){}.getType()代替

    public static <T> List<T> readJsonArray(JSONArray array, Class<T> entityType) {
        Gson gson = new Gson();
        List<T> list = new ArrayList<>();
        for (int i = 0; i < array.length(); i++) {
            try {
                T t = gson.fromJson(array.getJSONObject(i).toString(), entityType);
                list.add(t);
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
        return list;
    }

    public static <T> List<T> readJsonArray(String array, Class<T> entityType) throws JSONException {
        Gson gson = new Gson();
        JSONArray jsonArray=new JSONArray(array);
        List<T> list = new ArrayList<>();
        for (int i = 0; i < array.length(); i++) {
            try {
                T t = gson.fromJson(jsonArray.getJSONObject(i).toString(), entityType);
                list.add(t);
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
        return list;
    }   
}