在Android中发送POST数据 [英] Sending POST data in Android

问题描述

我经历过 PHP ， JavaScript 和许多其他脚本语言，但我不有许多经验 Java 或 Android 。

I'm experienced with PHP, JavaScript and a lot of other scripting languages, but I don't have a lot of experience with Java or Android.

我正在寻找一种方法来向 PHP 脚本发送 POST 数据并显示结果。

I'm looking for a way to send POST data to a PHP script and display the result.

推荐答案

Updated Answer which works on Android 6.0

    public class CallAPI extends AsyncTask<String, String, String> {

        public CallAPI(){
            //set context variables if required
        }

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }


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

            String urlString = params[0]; // URL to call

            String resultToDisplay = "";

            InputStream in = null;
            try {

                URL url = new URL(urlString);

                HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

                in = new BufferedInputStream(urlConnection.getInputStream());


            } catch (Exception e) {

                System.out.println(e.getMessage());

                return e.getMessage();

            }

            try {
                resultToDisplay = IOUtils.toString(in, "UTF-8");
                //to [convert][1] byte stream to a string 
            } 
            catch (IOException e) {
                e.printStackTrace();
            }
            return resultToDisplay;
        }


         @Override
        protected void onPostExecute(String result) {
            //Update the UI
        }

旧回答

Older Answer

注意：此解决方案已过时。它只适用于最高5.1的Android设备。 Android 6.0及更高版本不包括在此答案中使用的Apache http客户端。

Note: This solution is outdated. It only works on Android devices up to 5.1. Android 6.0 and above do not include the Apache http client used in this answer.

Apache Commons的Http客户端是要走的路。它已经包括在android。下面是一个简单的例子，说明如何使用HTTP Post。

Http Client from Apache Commons is the way to go. It is already included in android. Here's a simple example of how to do HTTP Post using it.

public void postData() {
    // Create a new HttpClient and Post Header
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");

    try {
        // Add your data
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
        nameValuePairs.add(new BasicNameValuePair("id", "12345"));
        nameValuePairs.add(new BasicNameValuePair("stringdata", "Hi"));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

        // Execute HTTP Post Request
        HttpResponse response = httpclient.execute(httppost);

    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
    } catch (IOException e) {
        // TODO Auto-generated catch block
    }
} 

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