JSON解析Android的 - 对象对象 [英] JSON parse Android - object in object

问题描述

如何解析这个JSON？我想获得冠军，field_place和兄弟字段中的数据。

How to parse this json? I want get data from title, field_place and brothers fields.

{
"events": [
{
  "event": {
    "title": "BITUMIX Martyna Jastrz\u0119bska",
    "field_place": "Nowe Miejsce Al Jerozolimskie 51 lok.2",
    "field_zdjecie": "http:\/\/wybierzkulture.waw.pl\/sites\/default\/files\/styles\/post\/public\/martyna_jastrzebska_bitumix_2.jpg?itok=nd2O5U5z"
  }
},
{
  "event": {
    "title": "Wiecz\u00f3r Komedii Improwizowanej - D\u017cem Impro!",
    "field_place": "",
    "field_zdjecie": "http:\/\/wybierzkulture.waw.pl\/sites\/default\/files\/styles\/post\/public\/dzem_17_maja.jpg?itok=bfgDYxKq"
  }
}, 
...

我试过：

JSONObject itemm = jArray.getJSONObject(i);
JSONObject oneObject = itemm.getJSONObject("event");
String title = oneObject.getString("title");
String field_place = oneObject.getString("field_place");

...但它不工作。

... but it doesn't work.

推荐答案

在一个JSON字符串，有指导你通过分析两个符号：

In a JSON string , there are two symbols that guide you through parsing :

{ - 表示一个JSONObject

{ - indicates a JSONObject

[ - 表示JSONArray

[ - indicates a JSONArray

在解析JSON字符串，你应该通过这个项目反复。要了解你多少一个JSONObjects和JsonArrays在你的字符串，从中你应该开始分析，使用像的JSON可视化工具本网站。 ：

When parsing a json string, you should go through this items iteratively. To understand how many JsonObjects and JsonArrays you have in your string , and from which you should start parsing, use a json-visualizer tool like this website. :

示例：正如你所见，根对象是一个JSONObject它由一个JSONArray的三jsonOnjects。要解析这样的结构，你可以使用：

Example : As you see, the root object is a JSONObject which consists of an JSONArray with three jsonOnjects. To parse such a structure you can use :

JSONObject jsonobj = new JSONObject(jsonstring);

String result = jsonObject.getString("success");
String error_number = jsonObject.getString("error_number");    
String error_message = jsonObject.getString("error_message"); 

JSON Array jsonarray = jsonobj.getJSONArray();

String[] names = new String[jsonArray.length()];    
String[] formattedNames = new String[jsonArray.length()];  

for(int i=0;i<jsonArray.length();i++)
{
    JSONObject jsonObject = jsonArray.getJSONObject(i);

    names [i] = jsonObject.getString("name");
    formattedNames [i] = jsonObject.getString("formattedName");
  }

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