AsyncTask网络请求获取电话号码信息

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于 2018-11-01 21:01:01 发布

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分类专栏：网络网络请求文章标签： AsyncTask

本文链接：https://blog.youkuaiyun.com/weixin_43575489/article/details/83626947

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本文介绍了一个在Android应用中使用异步任务从远程服务器获取手机号段信息的方法。通过实例展示了如何设置EditText、Button和TextView组件，并在用户点击按钮时触发异步请求，获取并显示手机归属地信息。代码示例包括了使用AsyncTask进行网络请求、处理HTTP响应及UI更新的全过程。

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private EditText editText;
private Button button;
private TextView textView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    editText = findViewById(R.id.editText);
    button = findViewById(R.id.button);
    textView = findViewById(R.id.textView);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            getInfo(editText.getText().toString());

        }
    });
}
private String path="https://tcc.taobao.com/cc/json/mobile_tel_segment.htm?tel=";
public  void getInfo(final String photoNum){
    @SuppressLint("StaticFieldLeak") AsyncTask<String,Void,String> asyncTask=new AsyncTask<String,Void,String>() {
        @Override
        protected String doInBackground(String... strings) {
            try {
                URL url=new URL(strings[0]+photoNum);
                HttpURLConnection connection= (HttpURLConnection) url.openConnection();
                connection.setRequestMethod("GET");
                connection.setReadTimeout(5000);
                connection.setConnectTimeout(5000);
                int responseCode = connection.getResponseCode();
                if(responseCode==200){
                    InputStream inputStream = connection.getInputStream();
                    String stream = stream(inputStream,"jbk");
                    return stream;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            textView.setText(s);
        }
    }.execute(path);

}
public  String stream(InputStream is,String bm) throws IOException {
    StringBuilder builder=new StringBuilder();
    InputStreamReader isr=new InputStreamReader(is,bm);
    BufferedReader br=new BufferedReader(isr);
    for (String tem=br.readLine();tem!=null;tem=br.readLine()) {
        builder.append(tem);
    }
    return builder.toString();
}