private class MyAsync extends AsyncTask<String, Integer, String> { @Override protected String doInBackground(String... strings) { try { //路径 String path = "http://www.xieast.com/api/news/news.php?page=1"; //获取地址 URL url = null; url = new URL(path); HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); //设置延迟时间 httpURLConnection.setConnectTimeout(5000); httpURLConnection.setReadTimeout(5000); httpURLConnection.setRequestMethod("GET"); //判断是否为空 if (httpURLConnection.getResponseCode()==200){ //创建输入流 InputStream inputStream = httpURLConnection.getInputStream(); //创建输出流 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); //创建数组 byte[] bytes = new byte[1024]; //创建长度 int len = 0; //遍历输出 while ((len = inputStream.read(bytes))!=-1){ outputStream.write(bytes,0,len); } //关流 outputStream.close(); inputStream.close(); //将字符串转换成Gson文件 String json = outputStream.toString(); //返回数据 return json; } } catch (Exception e) { e.printStackTrace(); } return null; } //更新UI @Override protected void onPostExecute(String s) { super.onPostExecute(s); //创建gson Gson gson = new Gson(); //解析gson User user = gson.fromJson(s, User.class); List<User.DataBean> data = user.getData(); //创建适配器 MyAdapter myAdapter = new MyAdapter(data,MainActivity.this); //设置适配器 list_view.setAdapter(myAdapter); } }
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转载自blog.csdn.net/h_builder/article/details/80964679
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