[英]How to parse Json with following structure
[
{
"updated_at":"2012-03-02 21:06:01",
"fetched_at":"2012-03-02 21:28:37.728840",
"description":null,
"language":null,
"title":"JOHN",
"url":"http://rus.JOHN.JOHN/rss.php",
"icon_url":null,
"logo_url":null,
"id":"4f4791da203d0c2d76000035",
"modified":"2012-03-02 23:28:58.840076"
},
{
"updated_at":"2012-03-02 14:07:44",
"fetched_at":"2012-03-02 21:28:37.033108",
"description":null,
"language":null,
"title":"PETER",
"url":"http://PETER.PETER.lv/rss.php",
"icon_url":null,
"logo_url":null,
"id":"4f476f61203d0c2d89000253",
"modified":"2012-03-02 23:28:57.928001"
}
]
First create one class (Json_obj) for your json data.Then you can try this :首先为你的json数据创建一个类(Json_obj)。然后你可以试试这个:
String json_str='[ { "updated_at":"2012-03-02 21:06:01", "fetched_at":"2012-03-02 21:28:37.728840", "description":null, "language":null, "title":"JOHN", "url":"http://rus.JOHN.JOHN/rss.php", "icon_url":null, "logo_url":null, "id":"4f4791da203d0c2d76000035", "modified":"2012-03-02 23:28:58.840076" }, { "updated_at":"2012-03-02 14:07:44", "fetched_at":"2012-03-02 21:28:37.033108", "description":null, "language":null, "title":"PETER", "url":"http://PETER.PETER.lv/rss.php", "icon_url":null, "logo_url":null, "id":"4f476f61203d0c2d89000253", "modified":"2012-03-02 23:28:57.928001" } ]';
Gson gson = new Gson();
Json_obj json_obj = gson.fromJson(json_str, Json_obj.class);
Now your json data is converted in an object.You can fetch any value from that object.现在您的 json 数据转换为一个对象。您可以从该对象中获取任何值。
I suggest you just use jackson library instead.我建议你只使用 jackson 库。
You can just quickly have你可以快速拥有
ObjectMapper mapper = new ObjectMapper () // this reads json to Pojo and writes Pojo to json
YourPojoClass obj = mapper.readValue (....)
Reference: mkyong.com/java/jackson-2-convert-java-object-to-from-json参考:mkyong.com/java/jackson-2-convert-java-object-to-from-json
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