使用Java进行Json数据的解析(对象数组的相互嵌套)

{
 "translation": [
 "爱"
 ],
 "basic": {
 "us-phonetic": "l&＃652;v",
 "phonetic": "l&＃652;v",
 "uk-phonetic": "l&＃652;v",
 "explains": [
  "n. 恋爱；亲爱的；酷爱；喜爱的事物",
  "vt. 喜欢；热爱；爱慕",
  "vi. 爱",
  "n. (Love)人名；(英)洛夫"
 ]
 },
 "web": [
 {
  "value": [
  "爱情",
  "爱",
  "爱"
  ],
  "key": "Love"
 },
 {
  "value": [
  "无尽的爱",
  "蓝色生死恋",
  "不了情"
  ],
  "key": "Endless Love"
 },
 {
  "value": [
  "早恋",
  "青春期恋爱",
  "初恋"
  ],
  "key": "puppy love"
 }
 ]
}

String st = "{\"translation\":[\"爱\"],\"basic\":{\"us-phonetic\":\"l&＃652;v\",\"phonetic\":\"l&＃652;v\",\"uk-phonetic\":\"l&＃652;v\",\"explains\":[\"n. 恋爱；亲爱的；酷爱；喜爱的事物\",\"vt. 喜欢；热爱；爱慕\",\"vi. 爱\",\"n. (Love)人名；(英)洛夫\"]},\"query\":\"love\",\"errorCode\":0,\"web\":[{\"value\":[\"爱情\",\"爱\",\"爱\"],\"key\":\"Love\"},{\"value\":[\"无尽的爱\",\"蓝色生死恋\",\"不了情\"],\"key\":\"Endless Love\"},{\"value\":[\"早恋\",\"青春期恋爱\",\"初恋\"],\"key\":\"puppy love\"}]}";


  JSONObject str = JSONObject.fromObject(st);  //json数据的最外层肯定是一个对象，参数为字符串
 //对象str又分为3部分：translation，basic，web 
  if(str.has("translation")){
 JSONArray tr = str.getJSONArray("translation");  //translation是一个json数组
 for(int i = 0 ;i