相关疑难解决方法(0)

我的Android登录功能有问题,得到 android.os.NetworkOnMainThreadException

我暂时删除了密码字段,以测试是否只发布了用户名,我知道这对于Android 3.2+来说是一个问题.

这是我的代码:

package com.example.toknapp;

import java.util.ArrayList;

public class login2 extends Activity {
    EditText un;
    TextView error;
    Button ok;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);
        un=(EditText)findViewById(R.id.et_un);
        ok=(Button)findViewById(R.id.btn_login);
        error=(TextView)findViewById(R.id.tv_error);

        ok.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
                postParameters.add(new BasicNameValuePair("username", un.getText().toString()));
                //String valid = "1";
                String response = null;
                try {
                    response = CustomHttpClient.executeHttpPost("http://tokn.me/android_merchant_login.php", postParameters);
                    String res=response.toString();
                   // …