我正在尝试连接到我使用httpPost请求创建的localhost（WAMP）Web服务。它一直失败并给出IllegalStateExecption。任何人都可以提供一些问题的洞察力吗？谢谢！
String songtext,artisttext;
HttpResponse response ;
EditText song;
EditText artist;
EditText party;
HttpPost post;
HttpClient client;
ArrayList<NameValuePair> nameValuePairs;
String URL = "http://10.0.2.2/GoDJ/index.php?r=request/create";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
song = (EditText)findViewById(R.id.songTitle);
artist = (EditText)findViewById(R.id.songArtist);
party = (EditText)findViewById(R.id.partyid);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void uploadToDB(View view)
{
//send user message
Context context = getApplicationContext();
CharSequence text = "Letting the DJ Know!!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
//add values
nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("party", party.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("title", song.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("artist", artist.getText().toString()));
try
{
//instantiate request
client = new DefaultHttpClient();
post = new HttpPost(URL);
text = "Set Up Client and Post";
toast = Toast.makeText(context, text, duration);
toast.show();
post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
text = "Entity Set";
toast = Toast.makeText(context, text, duration);
toast.show();
response = client.execute(post);
text = "Post Executed SUCCESS";
toast = Toast.makeText(context, text, duration);
toast.show();
}
catch(Exception e)
{
text = "FAILURE";
toast = Toast.makeText(context, text, duration);
toast.show();
e.printStackTrace();
}
}
}