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fastjson确实很厉害（毕竟是阿里大牛写的），在逻辑解析的快捷上可以坐到很方便的搞定，这样直接就直接缩小的很多的工作量，并且代码结构很清晰。
基于以上摘要内容，我就闲着无聊比较了一下。代码如下
public void testFastJson(){
String jsonString = "[\n" +
"{\n" +
"orderId: 2964,\n" +
"code: \"2800001296442\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 22400,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-28 18:28:42\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"小黄瓜，无籽瓜\"\n" +
"},\n" +
"{\n" +
"orderId: 2940,\n" +
"code: \"2700001294044\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 650,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-27 20:05:44\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"两个装柠檬\"\n" +
"},\n" +
"{\n" +
"orderId: 2913,\n" +
"code: \"2600001291319\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 72500,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-26 20:56:19\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"韩国梨，纸箱白心柚，小黄瓜，野生苹果\"\n" +
"},\n" +
"{\n" +
"orderId: 2891,\n" +
"code: \"2500001289120\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 9000,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-25 21:06:20\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"哈密瓜（4个装）\"\n" +
"},\n" +
"{\n" +
"orderId: 2865,\n" +
"code: \"2400001286555\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 81100,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-24 19:57:55\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"西梅，哈密瓜（4个装），云南蜜桔，小黄瓜，木瓜，无籽瓜\"\n" +
"},\n" +
"{\n" +
"orderId: 2839,\n" +
"code: \"2300001283923\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 69000,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-23 20:50:23\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"哈密瓜（4个装），有机红心柚，凯特芒果\"\n" +
"},\n" +
"{\n" +
"orderId: 2820,\n" +
"code: \"2200001282039\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 37500,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-22 20:43:39\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"马奶提，哈密瓜（4个装），小黄瓜\"\n" +
"},\n" +
"{\n" +
"orderId: 2792,\n" +
"code: \"2100001279242\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 65500,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-21 22:11:42\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"菲律宾凤梨，辽宁葡萄，小黄瓜，野生苹果\"\n" +
"},\n" +
"{\n" +
"orderId: 2773,\n" +
"code: \"2000001277334\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 68800,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-20 22:14:34\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"菲律宾香蕉，无籽瓜，野生苹果\"\n" +
"},\n" +
"{\n" +
"orderId: 2737,\n" +
"code: \"1900001273702\",\n" +
"radiateCenterId: 1,\n" +
"userId: 7,\n" +
"totalMoney: 101000,\n" +
"status: 7,\n" +
"payStatus: 2,\n" +
"sendStatus: 2,\n" +
"payway: 1,\n" +
"gmtCreate: \"2015-10-19 21:35:02\",\n" +
"shopName: \"水果无忧\",\n" +
"itemsName: \"韩国梨，猕猴桃金果\"\n" +
"}\n" +
"]";
//这是待解析的json字符串。
long t1,t2;
t1 =System.currentTimeMillis();
List<MyOrderBean> list = JSONArray.parseArray(jsonString, MyOrderBean.class);
t2 =System.currentTimeMillis();
logError("fastjson = " + (t2 - t1));
}
以及自己的解析代码：
public class OrderHelper {
public static long t1,t2;
public static List<MyOrderBean> getOrderList(JSONObject object){
t1 =System.currentTimeMillis();
JSONArray array = JsonUtil.getJsonArray(object, "data");
List<MyOrderBean> list = CollectionUtil.newArrayList();
for (int i = 0; i < array.length(); i++) {
try {
JSONObject obj = JsonUtil.getJsonObject(array.get(i));
list.add(getOrder(obj));
} catch (JSONException e) {
e.printStackTrace();
}
}
t2 =System.currentTimeMillis();
LogUtil.logTagE("my useTime = " + (t2 - t1));
return list;
}
public static MyOrderBean getOrder(JSONObject obj){
MyOrderBean orders = new MyOrderBean();
orders.setId(JsonUtil.getInt(obj, "orderId", 0));
orders.setCode(JsonUtil.getString(obj, "code", ""));
orders.setGmtCreate(JsonUtil.getString(obj, "gmtCreate", ""));
orders.setItemName(JsonUtil.getString(obj, "itemsName", ""));
orders.setItemNum(JsonUtil.getInt(obj, "itemNum", 0));
orders.setPayWay(JsonUtil.getInt(obj, "payway", 0));
orders.setShopName(JsonUtil.getString(obj, "shopName", ""));
orders.setStatus(JsonUtil.getInt(obj, "status", 0));
orders.setShopId(JsonUtil.getInt(obj, "shopId", 0));
orders.setTotalMoney(PriceUtil.showPriceYang( JsonUtil.getDouble(obj, "totalMoney", 0.0d)));
orders.setPayStatus(JsonUtil.getInt(obj, "payStatus", 1));
orders.setSendStatus(JsonUtil.getInt(obj, "sendStatus", 1));
return orders;
}
}
运行结果如下：
结论如上、差距比较大。。。看到这个结果我就心安了，不说了我要去嘲讽我同学了。
其实总结了一下我不用fastjson的原因如下：
第一：每个项目，服务端的数据是多变的，根据不同的界面，服务端传回的数据是不一样的，这样就导致你整个实体里面可能有很多属性不是当前页面用得到的，fastjson的解析原理是通过反射找到所有get方法，于是再逐个比较解析。，使用fastjson解析无疑会多此一举。这可能是一个耗时长的原因，毕竟有很多无用的属性。
第二 :习惯自己写解析类，更加方便精确的针对每一个实体做解析，主要也是我自己写习惯了，闭着眼睛也知道怎么写，不过我这样有点小不方便，就是换一家公司之后，新的网络规范必须要重新适应，fastjson使用频率广泛我想也是有这点原因在里面。毕竟不用动脑直接一波流。
====================================分割线================================
好久没写博客了，毕业两年来，做合伙人这么长时间，经历了很多艰难的时期，挺过了好几个，什么都干过，运营，产品，市场地推，物流跟车，仓库分拣，累的不要不要的，技术成长却很少，看书时间减少，个人安排时间不足，上周末跟网易的同学聊天扯淡，真心羡慕一心写代码的生活。大企业不管有多么多的诟病沉珂，但是不可否认那里聚集了很多各自领域都很优秀的人才，圈子决定眼界，至少技术上可以帮助更加快速成长，这是我在预感项目失败公司清算的时候自己应该怎么选择的感悟。最近几个月是公司从未有过的艰难时期，这一次，可能坚持不下去了。毕竟太年轻，积累太少，也因为年轻，可以多尝试几条路。
很多年轻人（我自己也是）不喜欢大公司的环境，不习惯大公司的相处方式，整天吐槽臃肿不堪甚至浪费资源的公司结构和制度，网上一直在讨论的，去大公司还是去小公司，大神们有无数的结果和比较，我小小平凡人一枚就不在此浪费字数了。你选择什么样的工作，什么样的环境，什么样规模的平台，优劣都有， 其实在我看来都无所谓，别忘了自己还年轻，走错路可以回头，就算不想回头也可以继续往下走。所以只要肯走，没什么可怕的。
共勉。
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原文地址：http://my.oschina.net/halfront/blog/523585
