Read and write JSON two JSON in Android

Read JSON in Android

1. Read JSON content in JSON file

First, place the JSON file under directory assets:

Test.json

{"Programmers": [{"FirstName": "Brett", "LastName": "McLaughlin", "email": "AAAA"},{"firstName": "Jason", "LastName": " Hunter "," email ":" bbbb "},{" FirstName ":" Elliotte "," LastName ":" Harold "," email ":" CCCC "}]," authors ": [{" FirstName ":" Isaac "," LastName ":" Asimov "," Genre ":" Sciencefiction "},{" FirstName ":" Tad "," LastName ":" Williams "," Genre ":" Fantasy "},{" FirstName ":" Frank "," LastName ":" Peretti "," Genre ":" Christianfiction "}]," musicians ": [{" FirstName ":" Eric "," LastName ":" Clapton "," instrument ":" Guitar "},{" FirstName ":" Sergei "," LastName ":" Rachmaninoff "," Instrument ":" Piano "}]," Cat ":" Test "}

Read in Main.java

 try {inputstreamreader isr=new InputStreamReader (Getassets (). Open ("Test.json"), "UTF-8");//Opening Test.json            BufferedReader br=new BufferedReader (ISR);//Read ISR String line;            StringBuilder builder=new StringBuilder ();            while (line =br.readline ())!=null) {builder.append (line);            } br.close ();            Isr.close ();            Jsonobject root=new Jsonobject (builder.tostring ());            System.out.println (Root.getstring ("cat"));            Jsonarray Arry=root.getjsonarray ("programmers");                for (int i=0;i<arry.length (); i++) {Jsonobject lan=arry.getjsonobject (i);                System.out.println ("----------------");                System.out.println ("FirstName:" +lan.getstring ("FirstName"));                System.out.println ("LastName:" +lan.getstring ("LastName"));            SYSTEM.OUT.PRINTLN ("Email" +lan.getstring ("email"));     }} catch (IOException e) {       E.printstacktrace ();        LOG.E ("IO:", e.tostring ());            } catch (Jsonexception e) {e.printstacktrace ();        LOG.E ("JSON:", e.tostring ()); }

Show Results:

To read the given JSON data:

You can attach the value directly

Jsonobject root=new Jsonobject (builder.tostring ()); replace-"            jsonobject root=new jsonobject (" {' Programmers ': [{') FirstName ': ' Brett ', ' lastName ': ' McLaughlin ', ' email ': ' AAAA '}]};
2. Creating JSON-formatted data
 JSONObject                Root1=new Jsonobject ();            try {root1.put ("cat", "it");            Jsonobject lan1=new jsonobject ();            Lan1.put ("id", 1);            Lan1.put ("IDE", "Android");            Lan1.put ("name", "Java");            Jsonobject lan2=new jsonobject ();            Lan1.put ("id", 2);            Lan1.put ("IDE", "Xcod");            Lan1.put ("name", "ios");            Jsonobject lan3=new jsonobject ();            Lan1.put ("id", 3);            Lan1.put ("IDE", "vs");            Lan1.put ("name", "C #");            Jsonarray array=new Jsonarray ();            Array.put (LAN1);            Array.put (LAN2);            Array.put (LAN3);            Root1.put ("Programmers", array);        System.out.println (Root1.tostring ());        } catch (Jsonexception e) {e.printstacktrace (); }} 
 
 
 Display Result: 

SOURCE Download: http://download.csdn.net/detail/agonie201218/8657765

Read and write JSON two JSON in Android