我正在尝试做一个 HTTP Post，当我知道应该在异步任务或处理程序中使用耗时的任务时，我尝试使用处理程序对其进行编码，但我得到一个处理程序未捕获的异常，无法确定在哪里我错了。下面是我的代码和日志跟踪。
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button Bt = (Button)findViewById(R.id.button1);
Button Btx = (Button)findViewById(R.id.button2);
et = (EditText)findViewById(R.id.editText1);
etp = (EditText)findViewById(R.id.editText2);
Bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog = ProgressDialog.show(MainActivity.this,"Loading", "Please Wait...");
h = new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
dialog.dismiss();
}
};
new Thread(){
@Override
public void run() {
super.run();
Connection();
try {
Thread.sleep(3000);
h.sendEmptyMessage(0);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}.start();
}
});
// Btx.setOnClickListener(Sig);
}
private View.OnClickListener Sig =new View.OnClickListener() {
public void onClick(View v){
Intent Sign = new Intent(MainActivity.this,Signup.class);
startActivity(Sign);
}
};
public void Connection(){
String is = null;
String X = et.getText().toString();
String Y = etp.getText().toString();
if(X.length()>0 && Y.length()>0){
A = X;
B = Y;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://animsinc.com/query.php");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("username", X));
nameValuePairs.add(new BasicNameValuePair("password",Y));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httpclient.execute(httppost);
// et.setText(""); // clear text box
// etp.setText(""); // clear text box
HttpResponse responce = httpclient.execute(httppost);
HttpEntity entity = responce.getEntity();
is = EntityUtils.toString(entity);
// in = entity.getContent();
// Log.e("post responce----->", "" + is);
Toast.makeText(this,""+is, Toast.LENGTH_LONG).show();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
}catch (UnsupportedEncodingException e) {
e.printStackTrace();
}catch (IOException e) {
// TODO Auto-generated catch block
}
} else{
// display message if text fields are empty
Toast.makeText(getBaseContext(),"All field are required",Toast.LENGTH_SHORT).show();
}
if(is != null){
Toast.makeText(this,""+is, Toast.LENGTH_LONG).show();
}
}
}
这是我的原木猫：
