发送httppost请求到Bluemix部署的Node.js应用程序时，“不幸的是应用程序已经停止”错误

我正在创build一个Android应用程序，但使用httppost方法向Bluemix部署的Node.js服务器发送参数时，出现“不幸的应用程序已停止”错误。 有谁能帮我解决这个问题吗？

我有查询，无法从Node.js收到门票链接的响应： 我无法将我的请求参数发送到bluemix部署的node.js

Jave代码如下：

  package com.example.rest; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.List; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import android.support.v7.app.ActionBarActivity; import android.app.Dialog; import android.content.SharedPreferences; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Adapter; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends ActionBarActivity { String url = "http://mobilefeedbackform.mybluemix.net/"; List<NameValuePair> params; SharedPreferences pref; Dialog reset; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button breg1 = (Button) findViewById(R.id.buttonreg); breg1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { final EditText Name =(EditText) findViewById(R.id.editTextreg5); final EditText Email =(EditText) findViewById(R.id.editTextreg); final EditText Passwd =(EditText) findViewById(R.id.editTextreg2); if(Name.getText().toString().length()==0) { Toast.makeText(MainActivity.this, "Please enter Name", Toast.LENGTH_LONG) .show(); return; } else if(Email.getText().toString().length()==0) { Toast.makeText(MainActivity.this, "Please enter EmailId", Toast.LENGTH_LONG) .show(); return; } else if(Passwd.getText().toString().length()==0) { Toast.makeText(MainActivity.this, "Please enter Password", Toast.LENGTH_LONG) .show(); return; } else { String nametxt = Name.getText().toString(); String emailtxt = Email.getText().toString(); String passwdtxt = Passwd.getText().toString(); // Creating HTTP client HttpClient httpClient = new DefaultHttpClient(); // Creating HTTP Post HttpPost httpPost = new HttpPost("http://mobilefeedbackform.mybluemix.net"); // Building post parameters // key and value pair List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(3); nameValuePair.add(new BasicNameValuePair("name", nametxt)); nameValuePair.add(new BasicNameValuePair("email", nametxt)); nameValuePair.add(new BasicNameValuePair("password", passwdtxt)); // Url Encoding the POST parameters try { httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair)); } catch (UnsupportedEncodingException e) { // writing error to Log e.printStackTrace(); } // Making HTTP Request try { HttpResponse response = httpClient.execute(httpPost); // writing response to log Log.d("Http Response:", response.toString()); } catch (ClientProtocolException e) { // writing exception to log e.printStackTrace(); } catch (IOException e) { // writing exception to log e.printStackTrace(); } } } }); } 

}

我的错误日志如下：

  04-24 18:26:13.799: E/AndroidRuntime(528): FATAL EXCEPTION: main 04-24 18:26:13.799: E/AndroidRuntime(528):android.os.NetworkOnMainThreadException 04-24 18:26:13.799: E/AndroidRuntime(528): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099) 04-24 18:26:13.799: E/AndroidRuntime(528): at java.net.InetAddress.lookupHostByName(InetAddress.java:391) 04-24 18:26:13.799: E/AndroidRuntime(528): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242) 04-24 18:26:13.799: E/AndroidRuntime(528): at java.net.InetAddress.getAllByName(InetAddress.java:220) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 04-24 18:26:13.799: E/AndroidRuntime(528): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 04-24 18:26:13.799: E/AndroidRuntime(528): at com.example.rest.MainActivity$1.onClick(MainActivity.java:106) 04-24 18:26:13.799: E/AndroidRuntime(528): at android.view.View.performClick(View.java:3511) 04-24 18:26:13.799: E/AndroidRuntime(528): at android.view.View$PerformClick.run(View.java:14105) 04-24 18:26:13.799: E/AndroidRuntime(528): at android.os.Handler.handleCallback(Handler.java:605) 04-24 18:26:13.799: E/AndroidRuntime(528): at android.os.Handler.dispatchMessage(Handler.java:92) 04-24 18:26:13.799: E/AndroidRuntime(528): at android.os.Looper.loop(Looper.java:137) 04-24 18:26:13.799: E/AndroidRuntime(528): at android.app.ActivityThread.main(ActivityThread.java:4424) 04-24 18:26:13.799: E/AndroidRuntime(528): at java.lang.reflect.Method.invokeNative(Native Method) 04-24 18:26:13.799: E/AndroidRuntime(528): at java.lang.reflect.Method.invoke(Method.java:511) 04-24 18:26:13.799: E/AndroidRuntime(528): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 04-24 18:26:13.799: E/AndroidRuntime(528): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 04-24 18:26:13.799: E/AndroidRuntime(528): at dalvik.system.NativeStart.main(Native Method) 

Answer 1

错误是因为您正在Android主线程上尝试networking调用，并且正在激活strictmode策略来阻止它。 你可以在这个行android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork的stacktrace中看到这个。

你应该看看在一个单独的线程上执行networking调用。 Strictmode有助于为最终用户提供更好的体验。