Android uses get, Post to get network data

The first is get:

Layout is very simple, just a button, the main look at Mainactivity bar:

Package Com.francis.httpget;import Android.app.activity;import Android.os.asynctask;import android.os.Bundle; Import Android.view.menu;import android.view.menuitem;import android.view.view;import java.io.BufferedReader; Import Java.io.ioexception;import Java.io.inputstream;import Java.io.inputstreamreader;import Java.net.malformedurlexception;import Java.net.url;import Java.net.urlconnection;public class MyActivity extends    Activity {BufferedReader BufferedReader;    InputStreamReader InputStreamReader;    InputStream InputStream;        @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (r.layout.activity_my); Findviewbyid (R.id.button). Setonclicklistener (New View.onclicklistener () {@Override public void Oncl Ick (View v) {new asynctask<string,void,void> () {@Override Pro        tected Void doinbackground (String ... params) {                try {URL url = new URL (params[0]);                            URLConnection connection = Url.openconnection ();                            InputStream = Connection.getinputstream ();                            InputStreamReader = new InputStreamReader (InputStream, "UTF-8");                            BufferedReader = new BufferedReader (InputStreamReader);                            String Line;                                    while (true) {if (line = Bufferedreader.readline ()) = null) {                                System.out.println (line); }}} catch (Exception e) {E.printstacktrace                        ();                                } finally {try {bufferedreader.close ();                                Inputstreamreader.close (); InputstrEam.close ();                            } catch (IOException e) {e.printstacktrace ();                    }} return null; }}.execute ("http://fanyi.youdao.com/openapi.do?keyfrom=httpgetfrancis&key=893755706&type=data&            doctype=xml&version=1.1&q= here is Youdao translation API ");    }        }); } @Override Public boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu, this adds items to the Actio        n Bar if it is present.        Getmenuinflater (). Inflate (r.menu.my, menu);    return true; } @Override public boolean onoptionsitemselected (MenuItem Item) {//Handle Action Bar item clicks here.  The action bar would//automatically handle clicks on the Home/up button, so long/As you specify a parent        Activity in Androidmanifest.xml.        int id = item.getitemid ();        if (id = = r.id.action_settings) {    return true;    } return super.onoptionsitemselected (item); }}

URL for Youdao translation of the API provided, very convenient. Console output

Next is the post:

Quite simply, here are only the click events for the button that submitted the POST request:

There are 2 points to note when compared to get:

1.url is separate from the parameters;

2.connection.setdoinput (TRUE);
Connection.setdooutput (TRUE);
Connection.setrequestmethod ("POST");

Post Findviewbyid (R.id.button2). Setonclicklistener (New View.onclicklistener () {@Override                    public void OnClick (View v) {new asynctask<string,void,void> () {@Override  Protected Void doinbackground (String ... params) {try {URL                            url = new URL (params[0]);                            HttpURLConnection connection = (httpurlconnection) url.openconnection ();                            Connection.setdoinput (TRUE);                            Connection.setdooutput (TRUE);                            Connection.setrequestmethod ("POST");                            OutputStream = Connection.getoutputstream ();                            OutputStreamWriter = new OutputStreamWriter (OutputStream, "UTF-8");                            BufferedWriter = new BufferedWriter (outputstreamwriter); Bufferedwriter.write ("Keyfrom=httpgetfrancis&key=893755706&type=data&doctype=xml&version=1.1&q= here is Youdao translation API ");                            Bufferedwriter.flush ();                            InputStream = Connection.getinputstream ();                            InputStreamReader = new InputStreamReader (InputStream, "UTF-8");                            BufferedReader = new BufferedReader (InputStreamReader);                            String Line;                                    while (true) {if (line = Bufferedreader.readline ()) = null) {                                System.out.println (line); }}} catch (Exception e) {E.printstacktrace                        ();                                } finally {try {bufferedreader.close ();                                Inputstreamreader.close ();                 Inputstream.close ();           } catch (IOException e) {e.printstacktrace ();                    }} return null;            }}.execute ("Http://fanyi.youdao.com/openapi.do"); }        });

Android uses get, Post to get network data