JSon文件解析

#json.txt  { name:"中国", provinces:[ {name:"黑龙江", citys:["佳木斯","大庆","哈尔滨","齐齐哈尔","牡丹江"] }, {name:"辽宁", citys:["沈阳","大连","盘锦"] }, {name:"吉林", citys:["吉林市","长春市","四平市"] } ] } #JSonParser .java import java.io.*; import java.text.ParseException;   import org.json.*;   /**  * 从json文件读取数据，形成JSon对象，读取对象数据并打印  */ public class JSonParser {   public static void main(String[] args) { //从JSon文件读取数据 StringBuffer stringBuffer = new StringBuffer(); String line = null ; try { BufferedReader br = new BufferedReader(new FileReader(new File("json.txt"))); while( (line = br.readLine())!= null ){ stringBuffer.append(line); }  } catch (FileNotFoundException e) {        e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } try { //将Json文件数据形成JSONObject对象 JSONObject jsonObject = new JSONObject(stringBuffer.toString()); //获取JSONObject对象数据并打印 JSONArray provinces = jsonObject.getJSONArray("provinces") ; String name = null ; StringBuffer jsonFileInfo = new StringBuffer(); JSONArray citys = null ; for (int i = 0; i < provinces.length(); i++) { name = provinces.getJSONObject(i).getString("name"); jsonFileInfo.append("/nname:" + name + "/n" + "citys:"); citys = provinces.getJSONObject(i).getJSONArray("citys"); for (int j = 0; j < citys.length(); j++) { jsonFileInfo.append(citys.getString(j)+"/t"); } }   System.out.println(jsonFileInfo); } catch (ParseException e) { e.printStackTrace(); } } }   运行结果：   name:黑龙江 citys:佳木斯 大庆 哈尔滨 齐齐哈尔 牡丹江 name:辽宁 citys:沈阳 大连 盘锦 name:吉林 citys:吉林市 长春市 四平市