android使用HttpURLConnection请求一个php web服务并提交php表单

Question

I want to parse a php web service using my android application, I create a connection to the url like this

InputStream stream = null ;
URL url = new URL(url);
HttpURLConnection conn;
conn=(HttpURLConnection)url.openConnection();
conn.setRequestMethod("POST");
conn.setReadTimeout(30000);
stream =conn.getInputStream();

after getInputStream , I am using pull parser to parse xml data, but my problem is the web service requires to submit the form to get xml data. How can I click this button from my java code? Is this possible or do I need to change the web service ?

Answer 1

Follow these steps if you want to read data from webservide: In your button's onclick listener

new urlConTask().execute() //use asynctask

in asynctask's doInBackground method:

   @Override
        protected String doInBackground(String... params) {

            String url = ur url here;
            String response = "";
            try {
                 response = HttpConnect.sendGet(url);//sendGet is method defined in HttpConnect.java. Its a custom class

            } catch (Exception e) {
                e.printStackTrace();
            }

sendGetMethod:

   public static String  sendGet(String url) throws Exception {



        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // optional default is GET
        con.setRequestMethod("GET");

        //add request header

        int responseCode = con.getResponseCode();
        System.out.println("\nSending 'GET' request to URL : " + url);
        System.out.println("Response Code : " + responseCode);

        BufferedReader in = new BufferedReader(
                new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        //print result
        return response.toString(); //this is your response

    }

Answer 2

Your app will not be abled to "click" submit button. You said that the submit button submit all the form. Your app should do the request triggered by the submit button.

Answer 3

我必须更改Web服务并使其获得GET和POST，然后我必须放入我的代码

conn.setRequestMethod("GET");