HttpClient+HttpURLConnection

来源：互联网发布：如何查看淘宝商品排名编辑：程序博客网时间：2024/06/05 15:27

Button btnClient = (Button) findViewById(R.id.btn_client);        Button btnUrl = (Button) findViewById(R.id.btn_url);        ListView listView = (ListView) findViewById(R.id.lv);        btnClient.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //执行异步任务                MyTask myTask = new MyTask();                myTask.execute(new String[]{"https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10", "1"});            }        });        btnUrl.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //执行异步任务                MyTask myTask = new MyTask();                myTask.execute(new String[]{"https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10", "2"});            }        });

streamToString方法：

 public String streamToString(InputStream stream) {        StringBuilder builder = new StringBuilder();        try {            BufferedReader br = new BufferedReader(new InputStreamReader(stream, "utf-8"));            String con;            while ((con = br.readLine()) != null) {                builder.append(con);            }        } catch (Exception ex) {            ex.printStackTrace();        }        return builder.toString();    }

 class MyTask extends AsyncTask<String, Void, String> {        @Override        protected String doInBackground(String... params) {            String resultStr = "";            //得到请求的类型            String type = params[1];            if ("1".equals(type)) {//如果是"1" 执行 HttpGet请求                //因为请求的是https协议的网址，eclipse下使用HttpGet请求会报错，需要添加以下这行代码                SSLSocketFactory.getSocketFactory().setHostnameVerifier(new AllowAllHostnameVerifier());                //1.创建一个HttpClient对象                HttpClient hc = new DefaultHttpClient();                //2.创建httpGet对象                HttpGet hg = new HttpGet(params[0]);                try {                    //3.执行请求                    HttpResponse response = hc.execute(hg);                    //4.判断结果码                    int code = response.getStatusLine().getStatusCode();                    if (code == 200) {                        //5.得到请求的结果                        HttpEntity result = response.getEntity();                        resultStr = "client请求：" + EntityUtils.toString(result);                    }                } catch (IOException e) {                    e.printStackTrace();                }            } else if ("2".equals(type)) {//如果是2执行 HttpUrlConnection请求                try {                    //1.创建Url对象                    URL url = new URL(params[0]);                    //2.打开连接                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();                    //3.设置                    connection.setRequestMethod("GET");                    connection.setConnectTimeout(5000);                    connection.setReadTimeout(5000);                    //4.得到响应码，进行判断                    int code = connection.getResponseCode();                    if (code == 200) {                        //5.得到结果                        InputStream inputStream = connection.getInputStream();                        resultStr = "url请求：" + streamToString(inputStream);                    }                } catch (Exception ex) {                    ex.printStackTrace();                }            } else {            }            return resultStr;        }        @Override        protected void onPostExecute(String s) {            super.onPostExecute(s);            Log.d("zzz", s);        }        @Override        protected void onPreExecute() {            super.onPreExecute();        }    }

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