Android--------parsing JSON files using Gson

<span id="Label3"></p><p># #使用gson解析json文件<br><br>There are two forms of **json: * *<br><br>**1. {} type, and data is included with {}; * *<br><br>**2. [] type, that is, data is included with []; * *<br><br><br><br><br>Here is an example of how Gson parses json, using only the ~<br><br>Send two JSON content first<br><br>1. The outermost layer is {}<br><br>{<br>"resp": "ok",<br>"result": {<br>"date": "2013-4-19 16:55:58",<br>"focus": [<br>{<br>"summary": "introduction",<br>"title": "caption",<br>"url": "http://www.ceshi.com"<br>},<br>{<br>"summary": "introduction 22",<br>"title": "heading 22",<br>"url": "http://www.ceshi22.com"<br>}<br>],<br>"items": [<br>{<br>"id": "11",<br>"name": "names",<br>"price": "88.88"<br>},<br>{<br>"id": "22",<br>"name": "22",<br>"price": "100"<br>}<br>]<br>}<br>}<br><br><br>2. The outer layer is []<br><br>[<br>{<br>"addr": "beijing",<br>"age": "22",<br>"name": "zeng"<br>},<br>{<br>"addr": "shanghai",<br>"age": "20",<br>"name": "zhang"<br>},<br>{<br>"addr": "shenzhen",<br>"age": "25",<br>"name": "wang"<br>}<br>]<br><br>###** one, using gson, analysis, The key is to define a good JavaBean class object * *<br><br>1. * * * * definition {} type JavaBean class * * *<br><br>Bean.java<br><br>public class Bean {<br>@SerializedName ("resp")<br>Private String respone;//if The variable is named different from the parsing data, add @serializedname ("")<br>Private String resp;<br>Private result result;<br>//.... Omit set below, get<br><br>Resultbean class<br><br>Result.java<br><br><br>public class Result {<br>Private String date;<br>Private List<focusitem> focus;<br>Private List<item> items;<br>}<br>Focusitem.java<br><br>public class Focusitem {<br>Private String title;<br>Private String summary;<br>Private String url;<br>}<br>Item.java<br><br>public class Item {<br>Private String name;<br>private int id;<br>Private float price;<br>}<br><br>2. * * * * definition {} type JavaBean class * * *<br><br>Info.java<br><br>public class Info {<br>Private String name;<br>private int age;<br>Private String addr;<br>}<br><br><br>###** two, parsing code, One of the outermost is {} one is []**<br><br><br>private void Parse () {<br>Gson Gson = new Gson ();<br>Switch (type) {<br>The outermost layer is {}, encapsulated as an object<br>Case OBJ:<br>Bean Fromjson = Gson.fromjson (readcontext, bean.class);<br>System.out.println (fromjson.tostring ());<br>Break<br>The outermost layer is [], encapsulated as an array object<br>Case ARR:<br>Type type = new typetoken<list<info>> () {}.gettype ();<br>Object fromJson2 = Gson.fromjson (readcontext, type);<br>list<info> list = (list<info>) fromJson2;<br>Break<br>}<br>}</p><p><p>Android--------parsing JSON files using Gson</p></p></span>