Android Studio访问Http资源之HttpURLConnection的案例（GET方式）

默认已经有服务器（自己本地搭建的或远程的），没有的可以拿个免费接口先来用用，随便一搜就有的。

这里使用的url是http://tcc.taobao.com/cc/json/mobile_tel_segment.htm?tel=手机号

xml文件就不放了，只有Button。

public class MainActivity extends AppCompatActivity {         private Button btn1;        private String urlAddressFront = "http://tcc.taobao.com";    private String urlAddressMethod = "/cc/json/mobile_tel_segment.htm";    @Override    protected void onCreate(Bundle savedInstanceState) {             super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        btn1 = (Button) findViewById(R.id.btn_get);        btn1.setOnClickListener(new View.OnClickListener() {             @Override        public void onClick(View v) {                     doGet("168********");   //手机号        }});    }    //doGet请求    private void doGet(String s) {             final String urlAddress = urlAddressFront + urlAddressMethod + "?tel=" + s ;     //拼接出完整的url        new Thread(new Runnable() {                  //开启一个异步线程，AS在3.0后不允许在主线程中访问网络            @Override            public void run() {                     try {                         URL url = new URL(urlAddress);              //URL对象                    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();     //生成HttpURLConnection对象                    httpURLConnection.connect();            //连接服务器                    //服务器响应                    if (httpURLConnection.getResponseCode() == 200){             //服务器响应码                        InputStream inputStream = httpURLConnection.getInputStream();       //输入流                        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));     //BufferedReader构造方法                        StringBuffer stringBuffer = new StringBuffer();     //用来存储读的结果                        String readLine = "";       //存储每行的结果                        while ((readLine = bufferedReader.readLine()) != null){          //按行读取，每行读到的字符串放到readLine中                            stringBuffer.append(readLine);                            inputStream.close();                            bufferedReader.close();                            httpURLConnection.disconnect();                            Log.d("TAG",stringBuffer.toString());                        }                    }else {                             Log.d("TAG","failed");                    }                } catch (MalformedURLException e) {                         e.printStackTrace();                } catch (IOException e) {                         e.printStackTrace();                }            }        }).start();    }}

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