RFID扫描APP--source4

来源：互联网发布：java int除法向上取整编辑：程序博客网时间：2024/06/02 04:13
第四部分
4. HttpSend.java
public class Httpsend {    private static final String TAG = "Httpsend";    public static final String RESULT = "flag";    public static final String FAIL = "fail";    public static final String SUCCESS = "success";    public boolean send(String urlstr, String param) {        String result = "";        HttpURLConnection connection = null;        BufferedReader in = null;        PrintWriter out = null;        try {            URL url = new URL(urlstr);            connection = (HttpURLConnection)url.openConnection();            connection.setRequestMethod("POST");            connection.setDoInput(true);            connection.setDoOutput(true);            connection.setUseCaches(false);            connection.setInstanceFollowRedirects(true);            connection.setRequestProperty("Content-Type",                    "application/x-www-form-urlencoded");            connection.connect();            out = new PrintWriter(connection.getOutputStream());            out.print(param);            out.flush();            in = new BufferedReader(new InputStreamReader(connection.getInputStream()));            String s = "";            while((s = in.readLine()) != null) {                result += s;            }        } catch (IOException e) {            Log.i(TAG, "connect error");        } finally {            try {                if(out != null) {                    out.close();                }                if (in != null) {                    in.close();                }            } catch (IOException e) {                Log.i(TAG, "close error");            }        }        Log.i(TAG, result);        try {            JSONObject json = new JSONObject(result);            String res = (String)json.get(RESULT);            if(res.equals(SUCCESS)) {                return true;            }        }catch(JSONException e) {            Log.i(TAG, "to json error");        }        return false;    }}
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