单击按钮时的 Android HTTP 发布请求 [英] Android HTTP post request on clicking button
本文介绍了单击按钮时的 Android HTTP 发布请求的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想通过单击按钮向我的网站发送 HTTP 发布请求.我搜索了allot只找到了这段代码
i want to send an HTTP post request by Clicking on Button to my website. i searched allot only found this piece of code
// 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", "AndDev is Cool!"));
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
}
但我不知道点击按钮是如何工作的.
But i don't know how it work with an clicking on button.
推荐答案
使用 AsyncTask 用于对按钮单击执行网络操作:
use AsyncTask for Performing Network Opertion on Button Click as:
public class onbuttonclickHttpPost extends AsyncTask<String, Void, Void> {
@Override
protected String doInBackground(String... params) {
byte[] result = null;
String str = "";
// 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", "AndDev is Cool!"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpURLConnection.HTTP_OK){
result = EntityUtils.toByteArray(response.getEntity());
str = new String(result, "UTF-8");
}
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
return str;
}
/**
* on getting result
*/
@Override
protected void onPostExecute(String result) {
// something with data retrieved from server in doInBackground
}
}
并在按钮上单击 Start AsyncTask onbuttonclickHttpPost 为:
and on Button Click Start AsyncTask onbuttonclickHttpPost as:
buttonclick.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v) {
new onbuttonclickHttpPost.execute(null);
}
});
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