//获取assets文件夹下aaa.text的json字符串
private void getData() {
try {
InputStreamReader reader = new InputStreamReader(getAssets().open("aaa.txt"));
BufferedReader bufferedReader = new BufferedReader(reader);
StringBuffer buffer = new StringBuffer("");
String str;
try {
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
} catch (IOException e) {
e.printStackTrace();
}
Gson gson = new Gson();
beanInfo = gson.fromJson(json, BeanInfo.class);
} catch (IOException e) {
e.printStackTrace();
}
}