如:
jsonData的数据格式:[{ "name": "xiaowang", "password": "123" },{ "name": "xiaozhang", "password": "456" },{ "name": "xiaoli", "password": "789" }]
import org.json.JSONArray;
import org.json.JSONObject;
private JSONArray arr;
arr = new JSONArray(jsonData);
for(int i=0;i<arr.length();++i){
JSONObject temp = (JSONObject) arr.get(i);
map.clear();
map.put("materialName", temp.getString("materialName"));
map.put("materialFormat", temp.getString("unitName"));
map.put("id", temp.getString("id"));
listItem.add(map);
}