几种不同的json格式解析

转连接：

http://blog.csdn.net/whx405831799/article/details/42171191

内容很好

给服务端发送请求后，服务端会返回一连串的数据，这些数据在大部分情况下都是XML格式或者JSON格式。然后JSON相对XML来说解析相对方便一些，所以先说说JSON的解析。

JSON的基本数据格式有这几种：

1.一个JSON对象——JSONObject

{"name":"胡小威" , "age":20 , "male":true}

2.一个JSON数组——JSONArray

[{"name":"胡小威" , "age":20 , "male":true},{"name":"赵小亮" , "age":22 , "male":false}]

3.复杂一点的JSONObject

{"name":"胡小威", "age"=20, "male":true, "address":{"street":"岳麓山南", "city":"长沙","country":"中国"}}

4.复杂一点的JSONArray

[

{"name":"胡小威", "age"=20, "male":true, "address":{"street":"岳麓山南", "city":"长沙","country":"中国"}},

{"name":"赵小亮", "age"=22, "male":false, "address":{"street":"九州港", "city":"珠海","country":"中国"}}

]

5.来个更复杂的，这是我从爱帮公交上扒取的数据

{"buses":{"bus":[{"last_foot_dist":"0","time":"37","segments":{"segment":[{"line_name":"立珊专线(中南大学学生公寓-长沙火车站)","foot_dist":"362","stat_xys":"","stats":"岳麓山南;湖南师大;二里半;岳麓山北;市四医院;华图教育(太平街口);牛耳教育(南阳街口);韭菜园;曙光路口;长岛路口;长沙火车站","end_stat":"长沙火车站","line_xys":"","line_dist":"7535","start_stat":"岳麓山南"}]},"foot_dist":"362","dist":"7897"},{"last_foot_dist":"0","time":"41","segments":{"segment":[{"line_name":"旅1路(科教新村-长沙火车站)","foot_dist":"337","stat_xys":"","stats":"岳麓山南;湖南师大;二里半;岳麓山北;市四医院;华图教育(太平街口);蔡锷中路口;韭菜园;乔庄;曙光路口;长岛路口;五一东村;车站路口;长沙火车站","end_stat":"长沙火车站","line_xys":"","line_dist":"7822","start_stat":"岳麓山南"}]},"foot_dist":"337","dist":"8159"}]}}

接下来是解析部分

一、直接解析

1.{"name":"胡小威" , "age":20 , "male":true}

1. public void parseJsonObject(String json) {
2. try {
3. JSONObject jsonObject = new JSONObject(json);
4. String name = jsonObject.getString("name");
5. int age = jsonObject.getInt("age");
6. boolean male = jsonObject.getBoolean("male");
7. //接下来该干嘛干嘛
8. } catch (JSONException e) {
9. // TODO Auto-generated catch block
10. e.printStackTrace();
11. }
12. }

2.[{"name":"胡小威" , "age":20 , "male":true},{"name":"赵小亮" , "age":22 , "male":false}]

1. public void parseJSONArray(String json) {
2. try {
3. JSONArray jsonArray = new JSONArray(json);
4. for (int i = 0; i < jsonArray.length(); i++) {
5. jsonObject = jsonArray.getJSONObject(i);
6. String name = jsonObject.getString("name");
7. int age = jsonObject.getInt("age");
8. boolean male = jsonObject.getBoolean("male");
9. //接下来该干嘛干嘛
10. }
11. } catch (JSONException e) {
12. // TODO Auto-generated catch block
13. e.printStackTrace();
14. }
15. }

3.{"name":"胡小威", "age"=20, "male":true, "address":{"street":"岳麓山南", "city":"长沙","country":"中国"}}

1. public void parseJsonPerson(String json) {
2. try {
3. JSONObject jsonObject = new JSONObject(json);
4. String name = jsonObject.getString("name");
5. int age = jsonObject.getInt("age");
6. boolean male = jsonObject.getBoolean("male");
7. JSONObject addressJSON = jsonObject.getJSONObject("address");
8. String street = addressJSON.getString("street");
9. String city = addressJSON.getString("city");
10. String country = addressJSON.getString("country");
11. Address address = new Address(street, city, country);
12. Person person = new Person(name, age, male, address);
13. } catch (JSONException e) {
14. // TODO Auto-generated catch block
15. e.printStackTrace();
16. }
17. }

4.

[

{"name":"胡小威", "age"=20, "male":true, "address":{"street":"岳麓山南", "city":"长沙","country":"中国"}},

{"name":"赵小亮", "age"=22, "male":false, "address":{"street":"九州港", "city":"珠海","country":"中国"}}

]

1. public void parseJsonArrayPerson(String json) {
2. List<Person> persons = new ArrayList<Person>();
3. try {
4. jsonArray = new JSONArray(json);
5. for (int i = 0; i < jsonArray.length(); i++) {
6. jsonObject = jsonArray.getJSONObject(i);
7. String name = jsonObject.getString("name");
8. int age = jsonObject.getInt("age");
9. boolean male = jsonObject.getBoolean("male");
10. JSONObject addressJSON = jsonObject.getJSONObject("address");
11. String street = addressJSON.getString("street");
12. String city = addressJSON.getString("city");
13. String country = addressJSON.getString("country");
14. Address address = new Address(street, city, country);
15. Person person = new Person(name, age, male, address);
16. persons.add(person);
17. Log.v("juno", person.toString());
18. }
19. } catch (JSONException e) {
20. // TODO Auto-generated catch block
21. e.printStackTrace();
22. }
23. Log.v("juno", persons.toString());
24. }

5. {"buses":{"bus":[{"last_foot_dist":"0","time":"37","segments":{"segment":[{"line_name":"立珊专线(中南大学学生公寓-长沙火车站)","foot_dist":"362","stat_xys":"","stats":"岳麓山南;湖南师大;二里半;岳麓山北;市四医院;华图教育(太平街口);牛耳教育(南阳街口);韭菜园;曙光路口;长岛路口;长沙火车站","end_stat":"长沙火车站","line_xys":"","line_dist":"7535","start_stat":"岳麓山南"}]},"foot_dist":"362","dist":"7897"},{"last_foot_dist":"0","time":"41","segments":{"segment":[{"line_name":"旅1路(科教新村-长沙火车站)","foot_dist":"337","stat_xys":"","stats":"岳麓山南;湖南师大;二里半;岳麓山北;市四医院;华图教育(太平街口);蔡锷中路口;韭菜园;乔庄;曙光路口;长岛路口;五一东村;车站路口;长沙火车站","end_stat":"长沙火车站","line_xys":"","line_dist":"7822","start_stat":"岳麓山南"}]},"foot_dist":"337","dist":"8159"}]}}

1. public List<Salution> parseJSON(String str){
2. Log.d("返回的JSON数据：", str);
3. List<Salution> busList = new ArrayList<Salution>();
4. try {
5. JSONObject jsonObject = new JSONObject(str);
6. JSONObject busesJSON = jsonObject.getJSONObject("buses");
7. JSONArray busJSArray=busesJSON.getJSONArray("bus");
8. for(int i=0;i<busJSArray.length();i++){
9. JSONObject busJSObject = busJSArray.getJSONObject(i);
10. JSONObject segsJSObject=busJSObject.getJSONObject("segments");
11. JSONArray segJSArray=segsJSObject.getJSONArray("segment");
12. Salution st=new Salution();
13. for(int j=0;j<segJSArray.length();j++){
14. if(j==0){
15. JSONObject segJSObject = segJSArray.getJSONObject(j);
16. st.setLine_name1(segJSObject.getString("line_name"));
17. Log.d("line_name", segJSObject.getString("line_name"));
18. st.setStats1(segJSObject.getString("stats"));
19. st.setEnd_stat1(segJSObject.getString("end_stat"));
20. st.setStart_stat1(segJSObject.getString("start_stat"));
21. }
22. if(j==1){
23. JSONObject segJSObject = segJSArray.getJSONObject(j);
24. st.setLine_name2(segJSObject.getString("line_name"));
25. Log.d("line_name", segJSObject.getString("line_name"));
26. st.setStats2(segJSObject.getString("stats"));
27. st.setEnd_stat2(segJSObject.getString("end_stat"));
28. st.setStart_stat2(segJSObject.getString("start_stat"));
29. }
30. }
31. busList.add(st);
32. }
33. return busList;
34. } catch (JSONException e) {
35. // TODO Auto-generated catch block
36. e.printStackTrace();
37. }
38. return null;
39. }