第一步：在android  studio中添加json文件；

 

第二步：读取文件的函数

private String[] getJosnData(){String result[] = null;List<String> list = new ArrayList<>();try {//获取本地的Json文件AssetManager assetManager = mContext.getAssets();InputStream open = assetManager.open("vendor.json");InputStreamReader isr = new InputStreamReader(open, "UTF-8");//包装字符流,将字符流放入缓存里BufferedReader br = new BufferedReader(isr);String line;//StringBuilder和StringBuffer功能类似,存储字符串StringBuilder builder = new StringBuilder();while ((line = br.readLine()) != null) {//append 被选元素的结尾(仍然在内部)插入指定内容,缓存的内容依次存放到builder中builder.append(line);}br.close();isr.close();//builder.toString() 返回表示此序列中数据的字符串//使用Json解析JSONObject jsonObject = new JSONObject(builder.toString());org.json.JSONObject json = new org.json.JSONObject(builder.toString());String data = json.getString("vendor");org.json.JSONArray array = new org.json.JSONArray(data);for (int i=0, j=0; i < array.length(); i++) {org.json.JSONObject iter= array.getJSONObject(i);Iterator keys = iter.keys();while(keys.hasNext()) {String key = (String) keys.next();String value = iter.getString(key);System.out.println("abcdef :" + key + " : " + value);list.add(key);}}} catch (JSONException | IOException e) {e.printStackTrace();}result = new String[list.size()];for( int i=0; i<list.size(); ++i){result[i] = list.get(i);System.out.println("abcdefg : " + result[i]);}return result;}