android-json-< 13 >

1.Json

2.Json Example

Parse the JSON (a string) directly

  Public classJsonutils { Public voidJsonreader (String str) {//str-shaped as: String jsonstr= "[{\" name\ ": \" hq\ ", \" age\ ": 20},{\" name\ ": \" cyx\ ", \" age\ ": 30}]"; //here parsing reads the JSON array. //Create a JSON parsing objectJsonreader jr=NewJsonreader (NewStringReader (str)); Try {        //the read process is 1. Start reading the array. 2. Start reading objects.        3. Start reading key-value pairs. //(repeat 3) 4. Ends the Read object. 5. End reading of an arrayJr.beginarray ();  while(Jr.hasnext ()) {jr.beginobject ();  while(Jr.hasnext ()) {String name=Jr.nextname (); if(Name.equals ("name")) System.out.println ("Name---" +jr.nextstring ()); Else if(Name.equals ("Age")) System.out.println ("Age---" +jr.nextint ());        } jr.endobject ();    } jr.endarray (); } Catch(IOException e) {//TODO auto-generated Catch blockE.printstacktrace (); }        }         Public voidParsejsonfromuser () {//1. Create a Gson objectGson Gson =NewGson (); //User user = Gson.fromjson (jsondata, user.class); System.out.println ("Name--->" +user.getname ()); System.out.println ("Age---->" +user.getage ()); }}

View Code

Resolves a single JSON object (string: Only one object) to a similarly structured class object

 Public classJsonutils {//parse a single JSON object into a similarly structured user class     Public voidParseuserfromjson (String jsondata) {//1. Create a Gson objectGson Gson =NewGson (); //2. Call the object's Fromjson method, parse to the user object toUser user = Gson.fromjson (jsondata, user.class); System.out.println ("Name--->" +user.getname ()); System.out.println ("Age---->" +user.getage ()); }}

Resolves multiple JSON objects (strings: multiple JSON objects) into a similarly structured class object

 Public classJsonutils {//Parse JSON Array (multiple JSON objects) into a user list     Public voidParseuserfromjson (String jsondata) {//1. Create a type object to hold multiple user objectsType ListType =NewTypetoken<linkedlist<user>>() {}.gettype (); //2. Create a Gson objectGson Gson =NewGson (); //3. Call the Fromjson method and return to the user (list) after parsinglinkedlist<user> users =Gson.fromjson (Jsondata, ListType);  for(Iterator Iterator =users.iterator (); Iterator.hasnext ();) {User User=(User) iterator.next (); System.out.println ("Name--->" +user.getname ()); System.out.println ("Age---->" +user.getage ()); }            }}

android-json-< 13 >