Use of JSON data Fastjson parsing (i)

It is said that Fastjson is currently the fastest repository for parsing JSON data, and is an open source library developed by people. Top, pay the official website: http://code.alibabatech.com/wiki/pages/viewpage.action?pageId=2424946

To use Fastjson, you first need to download the corresponding jar file, which can be downloaded on the official website.
Attached to the first example of beginners, a lot of advice:

{"    statuses": [        {         "id": 912345678901,         "text": "How does I stream JSON in Java?",         "geo": null,         " User ": {"        name ":" Json_newb ",        " Followers_count ":" $ "          },                  {         " id ": 777777777888,         " Text ":" Dfngsdnglnsldfnsl ",         " geo ": null,         " user ": {        " name ":" DSFGPD ",        " Followers_count ": 24              }          }     ]}

Allbean's Bean class:

Package Com.lee.jsontobean;public class Allbean {    private long ID;    private String text;    Private String Geo;    Private UserBean UserBean;    Public long GetId () {        return ID;    }    public void SetId (long id) {        this.id = ID;    }    Public String GetText () {        return text;    }    public void SetText (String text) {        this.text = text;    }    Public String Getgeo () {        return geo;    }    public void Setgeo (String Geo) {        This.geo = Geo;    }    Public UserBean Getuserbean () {        return UserBean;    }    public void Setuserbean (UserBean UserBean) {        This.userbean = UserBean;    }    }

Userbean's Bean class:

Package Com.lee.jsontobean;public class UserBean {    private String name;    private int followers_count;    Public String GetName () {        return name;    }    public void SetName (String name) {        this.name = name;    }    public int Getfollowers_count () {        return followers_count;    }    public void Setfollowers_count (int followers_count) {        this.followers_count = Followers_count;    }}

Parsing class Jsonbean:

Package Com.lee.jsontobean;import Java.io.file;import Java.io.fileinputstream;import java.io.FileNotFoundException ; Import Java.io.ioexception;import Java.util.list;import Javax.swing.text.badlocationexception;import Javax.swing.text.defaultstyleddocument;import Javax.swing.text.rtf.rtfeditorkit;import Com.alibaba.fastjson.JSON Import Com.alibaba.fastjson.jsonarray;import com.alibaba.fastjson.jsonobject;/** * {"statuses": [{"id ": 912345678901," text ":" How does I stream JSON in Java? "," geo ": null," user ": {" name ":" J         Son_newb "," Followers_count ": ()}, {" id ": 777777777888,              "Text": "Dfngsdnglnsldfnsl", "geo": null, "user": {"name": "DSFGPD", "Followers_count": 24    }}]} * */public class Jsonbean {Rtfeditorkit rtf;    Defaultstyleddocument DSD;    String text; public static void Main (string[] args) {JsonBean bean = new Jsonbean ();        Convert the string to a JSON object because my JSON data is first the JSON object Jsonobject jobj = Json.parseobject (bean.readrtf (New File ("Json.rtf"));        Then there is jsonarray, which can be based on my JSON data to know jsonarray arr = Jobj.getjsonarray ("statuses");        According to the Bean class to each JSON array of items list<allbean> Listbeans = Json.parsearray (arr.tostring (), allbean.class); Traverse for (Allbean Bean_: Listbeans) {//My demo JSON data gets the first layer of data System.out.println (Bean_.gett            EXT ());            System.out.println (Bean_.getid ());        My demo JSON data gets the second layer of data System.out.println (Bean_.getuserbean (). Getfollowers_count ()); }}//Because I put the JSON data into the RTF file, which is the JSON data to read the RTF file, converted to the string public string Readrtf (File in) {rtf=new rtfeditork          It ();          Dsd=new defaultstyleddocument ();              try {rtf.read (new FileInputStream (in), DSD, 0);          Text = new String (dsd.gettext (0, Dsd.getlength ())); } catch (FilenotfoundexCeption e) {//TODO auto-generated catch block E.printstacktrace ();          } catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();          } catch (Badlocationexception e) {//TODO auto-generated catch block E.printstacktrace ();      } return text; }  }

Finally, attach the program code: Fastjsontest.zip

From:http://www.cnblogs.com/lee0oo0/archive/2013/05/08/3066371.html

Use of JSON data Fastjson parsing (i)