JSON性能测试

JSON性能测试

在项目开发中，经常会用到JSON来传输数据。JSON工具有多种，如Gson,fastjson, org.json等。那么它们各自的性能如何呢？

这里针对fastjson,Gson,org.json进行了测试，以测试结果为准。

测试方法

*测试设备Samsung SM-A9000 android 6.0.1 

*主要分析各个JSON工具解析数据的速度
*测试用的Json格式是:{"data":[{"address":"address_0","id":0,"image":"image_0","name":"name_0"}, {"address":"address_1","id":1,"image":"image_1","name":"name_1"}],"result":1}
*以增减JsonArray(data)的数量来测试

*每组测试3次

1,10组时耗时对比。
JSON: {"data":[
{"address":"address_0","id":0,"image":"image_0","name":"name_0"},
{"address":"address_1","id":1,"image":"image_1","name":"name_1"},
{"address":"address_2","id":2,"image":"image_2","name":"name_2"},
{"address":"address_3","id":3,"image":"image_3","name":"name_3"},
{"address":"address_4","id":4,"image":"image_4","name":"name_4"},
{"address":"address_5","id":5,"image":"image_5","name":"name_5"},
{"address":"address_6","id":6,"image":"image_6","name":"name_6"},
{"address":"address_7","id":7,"image":"image_7","name":"name_7"},
{"address":"address_8","id":8,"image":"image_8","name":"name_8"},
{"address":"address_9","id":9,"image":"image_9","name":"name_9"}
],"result":1}

2,100组时耗时对比。

3,500组时耗时对比。

4,5000组时耗时对比。

5,10000组时耗时对比。

6,20000组时耗时对比。

7,50000组时耗时对比。

8,100000组时耗时对比。

9,200000组时耗时对比。

附上测试代码

ThreadPool.add(new Runnable() {
    @Override
    public void run() {

        ArrayList list = new ArrayList<>();
        int num = 10;//可修改数量
        for (int i = 0 ; i < num ; i ++){
            TestJsonBean jsonBean = new TestJsonBean();
            jsonBean.setId(i);
            jsonBean.setName("name_" + i);
            jsonBean.setImage("image_" + i);
            jsonBean.setAddress("address_" + i);

            list.add(jsonBean);
        }
        JsonBean jsonBean0 = new JsonBean();
        jsonBean0.setResult(1);
        jsonBean0.setData(list);

        ILog.e("-------------第 " + (++count) + " 次测试---------------------------------------------");

        long startTime = System.currentTimeMillis()/1000;

        String json = null ;//JSON.toJSONString(list)
        Gson gson = new Gson();
        json = gson.toJson(jsonBean0);

        long endTime = System.currentTimeMillis()/1000;

        ILog.e("生成JSON耗时: " + (endTime - startTime) + " 秒");

        ILog.e("JSON: " + json);

        //fastjson
        try{
            long fStartTime = System.currentTimeMillis();

            JsonBean jsonBean = JSON.parseObject(json , JsonBean.class);

            long fEndTime = System.currentTimeMillis();

            ILog.e("fastjson耗时: " + (fEndTime - fStartTime) + " 毫秒"  + "      "  + ((fEndTime - fStartTime)/1000) + " 秒" + "         " + jsonBean.toString());

        }catch (Exception e){
            e.printStackTrace();
        }

        //org.json
        try{
            long jStartTime = System.currentTimeMillis();

            JSONObject jsonObject0 = new JSONObject(json);
            int result = jsonObject0.getInt("result");
            JSONArray jsonArray = jsonObject0.getJSONArray("data");

            JsonBean bean = new JsonBean();
            bean.setResult(result);

            ArrayList jlist = new ArrayList<>();

            int size = jsonArray.length();
            for (int i = 0 ; i < size ; i++){
                JSONObject jsonObject = jsonArray.getJSONObject(i);
                int id = jsonObject.getInt("id");
                String name = jsonObject.getString("name");
                String image = jsonObject.getString("image");
                String address = jsonObject.getString("address");

                TestJsonBean jsonBean = new TestJsonBean();
                jsonBean.setId(id);
                jsonBean.setName(name);
                jsonBean.setImage(image);
                jsonBean.setAddress(address);

                jlist.add(jsonBean);
            }
            bean.setData(jlist);

            long jEndTime = System.currentTimeMillis();

            ILog.e("org.json耗时: " + (jEndTime - jStartTime) + " 毫秒"  + "      "  + ((jEndTime - jStartTime)/1000) + " 秒"  + "         "  + bean.toString());

        }catch (Exception e){
            e.printStackTrace();
        }

        //GSON
        try{
            long gStartTime = System.currentTimeMillis();
            Gson gson1 = new Gson();
            JsonBean bean = gson1.fromJson(json , JsonBean.class);

            long gEndTime = System.currentTimeMillis();

            ILog.e("GSON耗时: " + (gEndTime - gStartTime) + " 毫秒" + "      " + ((gEndTime - gStartTime)/1000) + " 秒" + "         "  + bean.toString());

        }catch (Exception e){
            e.printStackTrace();
        }
    }
});

结论：

    1.性能方面，org.json全面领先，Gson次之，fastjson最后。

    2.在少量数据情况下（500组以内），差别不大，对一般项目无影响

    3，大数据情况下，最好选择第一种org.json.