Android中解析Json方法

[轉載]解析json – penink – 博客園.

關於Json：http://www.json.org/

Json解析庫gson: http://code.google.com/p/google-gson/

1.使用Android中的JSONObject和JSONArray解析json數據

String strJson = "{\"students\":[{\"name\":\"Jack\",\"age\":12}, {\"name\":\"Vista\",\"age\":23}, {\"name\":\"Kaka\",\"age\":22}, {\"name\":\"Hony\",\"age\":31}]}";

try {JSONObject jo = new JSONObject(strJson);

JSONArray jsonArray = (JSONArray) jo.get("students");

for (int i = 0; i < jsonArray.length(); ++i) {

JSONObject o = (JSONObject) jsonArray.get(i);

System.out.println("name:" + o.getString("name") + "," + "age:"+ o.getInt("age"));

}} catch (JSONException e) {

e.printStackTrace();

}

2.使用gson中的JsonReader解析json數據

try {

String string = "{\"class\":1, \"students\":[{\"name\":\"jack\", \"age\":21},{\"name\":\"kaka\", \"age\":21},{\"name\":\"lucy\", \"age\":21}]}";

StringReader sr = new StringReader(string);

JsonReader jr = new JsonReader(sr);

jr.beginObject();

if (jr.nextName().contains("class")) {

System.out.println("班級: " + jr.nextString());

if (jr.nextName().equals("students")) {

jr.beginArray();

while (jr.hasNext()) {

jr.beginObject();

if (jr.nextName().equals("name"))

System.out.print("姓名：" + jr.nextString());

if (jr.nextName().equals("age")) {

System.out.println(" , 年齡：" + jr.nextInt());}jr.endObject();

}

jr.endArray();

}}

jr.endObject();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch 

blocke.printStackTrace();

} catch (IOException e) {// TODO Auto-generated catch

 blocke.printStackTrace();

}