Json generation and resolution, Json generation and resolution

Json generation and resolution, Json generation and resolution

 

JSON is commonly used for data interaction with the server. "{}" in JSON indicates JSONObject, and "[]" indicates JSONArray.

Json data is as follows:

1 {"singers": [2 {"id": "02", "name": "tom", "gender": "male", "tel ": ["123456", "789012"]}, 3 {"id": "03", "name": "jerry", "gender": "male ", "tel": ["899999", "666666"]}, 4 {"id": "04", "name": "jim", "gender ": "male", "tel": ["7777", "5555"] },{ "id": "05", "name": "lily", "gender ": "female", "tel": ["222222", "111111"]} 5]}

 

Json data generation code:

1 public String buildJson () throws JSONException {2 3 JSONObject persons = new JSONObject (); 4 5 JSONArray personArr = new JSONArray (); 6 7 JSONObject person = new JSONObject (); 8 person. put ("id", "02"); 9 person. put ("name", "tom"); 10 person. put ("gender", "male"); 11 12 JSONArray tel = new JSONArray (); 13 tel. put ("123456"); 14 tel. put ("789012"); 15 16 person. put ("tel", tel); 17 18 personArr. put (person); 19 20 JSONObject person2 = new JSONObject (); 21 person2.put ("id", "03"); 22 person2.put ("name", "jerry "); 23 person2.put ("gender", "male"); 24 25 JSONArray tel2 = new JSONArray (); 26 tel2.put ("899999"); 27 tel2.put ("666666 "); 28 29 person2.put ("tel", tel2); 30 31 personArr. put (person2); 32 33 34 JSONObject person3 = new JSONObject (); 35 person3.put ("id", "04"); 36 person3.put ("name", "jim "); 37 person3.put ("gender", "male"); 38 39 JSONArray tel3 = new JSONArray (); 40 tel3.put ("7777"); 41 tel3.put ("5555 "); 42 43 person3.put ("tel", tel3); 44 45 personArr. put (person3); 46 47 48 JSONObject person4 = new JSONObject (); 49 person4.put ("id", "05"); 50 person4.put ("name", "lily "); 51 person4.put ("gender", "female"); 52 53 JSONArray tel4 = new JSONArray (); 54 tel4.put ("222222"); 55 tel4.put ("111111 "); 56 57 person4.put ("tel", tel4); 58 59 personArr. put (person4); 60 61 62 persons. put ("singers", personArr); 63 64 65 return persons. toString (); 66}

 

Json data parsing code:

1 private void parseJsonMulti (String strResult) {2 try {3 JSONArray jsonObjs = new JSONObject (strResult ). getJSONArray ("singers"); 4 String s = ""; 5 6 for (int I = 0; I <jsonObjs. length (); I ++) {7 JSONObject jsonObj = (JSONObject) jsonObjs. opt (I); 8 int id = jsonObj. getInt ("id"); 9 String name = jsonObj. getString ("name"); 10 String gender = jsonObj. getString ("gender"); 11 s + = "id" + id + ", name:" + name + ", gender:" + gender + ", tel :"; 12 JSONArray tel = jsonObj. getJSONArray ("tel"); 13 for (int j = 0; j <tel. length (); j ++) {14 15 s + = tel. getString (j) + "/"; 16} 17 18 s + = "\ n"; 19 20} 21 TV. setText (s); 22} catch (JSONException e) {23 e. printStackTrace (); 24} 25}