AsyncTask+HttpURLConnection

最新推荐文章于 2018-12-30 10:25:59 发布

原创最新推荐文章于 2018-12-30 10:25:59 发布 · 237 阅读

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#AsyncTask HttpUrlConnection

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本文介绍了一个用于处理URL的工具类，该类通过异步任务从指定路径获取数据，使用GET请求并设置超时时间，处理HTTP响应，读取输入流并转换为字符串返回。同时展示了如何通过回调方法处理异步任务的结果。

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public class URLTools {
    public URLTools() {
    }

    ;

    public URLTools get(final String path) {

        MyTask myTask = new MyTask();
        myTask.execute(path);


        return this;
    }

    class MyTask extends AsyncTask<String, Void, String> {
        private HttpURLConnection httpURLConnection;

        @Override
        protected String doInBackground(String... strings) {
            String uu = strings[0];
            try {
                URL url = new URL(uu);
                httpURLConnection = (HttpURLConnection) url.openConnection();
                httpURLConnection.setRequestMethod("GET");
                httpURLConnection.setConnectTimeout(3000);
                int responseCode = httpURLConnection.getResponseCode();
                if (responseCode == 200) {
                    InputStreamReader inputStreamReader = new InputStreamReader(httpURLConnection.getInputStream(), "UTF-8");
                    String s = CharStreams.toString(inputStreamReader);
                    return s;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }

            return null;
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            String obj = s;
            data.getName(obj);
        }
    }

    private HttpData data;

    public void getData(HttpData data) {
        this.data = data;
    }

    public interface HttpData {
        void getName(String name);
    }
}