Question

以下是使用的代码。

import android.app.Activity;
import android.os.AsyncTask;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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 java.util.ArrayList;

public class ContactUs extends Activity implements View.OnClickListener {
    Button ok;
    EditText name;
    EditText email;
    EditText message;
    String resultname, resultemail, resultmessage;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_contact_us);

        //For the submit button
        ok = (Button) findViewById(R.id.btn_submit);
        ok.setOnClickListener(this);

        //For the value of forms in database
        name = (EditText) findViewById(R.id.et_name);
        email = (EditText) findViewById(R.id.et_mail);
        message = (EditText) findViewById(R.id.et_message);

    }

    @Override
    public void onClick(View v) {
        if (v.getId()==R.id.btn_submit){
            class asynctask extends AsyncTask<Void,Void,String>{
                private void postdata (){
                    HttpClient httpClient = new DefaultHttpClient();
                    ////zong ip address 192.168.8.103
                    HttpPost httpPost = new HttpPost("http://192.168.10.33:80/insert 1.php");
                    try {
                        ArrayList <NameValuePair> pairs = new ArrayList<NameValuePair>();

                        resultname = name.getText().toString();
                        resultemail = email.getText().toString();
                        resultmessage = message.getText().toString();

                        pairs.add(new BasicNameValuePair("Name",resultname));
                        pairs.add(new BasicNameValuePair("Email",resultemail));
                        pairs.add(new BasicNameValuePair("Message",resultmessage));

                        httpPost.setEntity(new UrlEncodedFormEntity(pairs));
                        HttpResponse response = httpClient.execute(httpPost);



                    }catch (Exception e){
                        e.printStackTrace();
                        Log.e("Error",e.toString());
                    }

                }

                @Override
                protected String doInBackground(Void... params) {
                    postdata();
                    return null;
                }
            }
            new asynctask().execute((Void) null);

            Toast.makeText(getApplicationContext(), "Thanks for your Registeration", Toast.LENGTH_LONG).show();





        }
    }
}

以下是我得到的错误

06-15 17:21:14.880 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at org.apache.http.HttpHost.<init>(HttpHost.java:83)
06-15 17:21:14.880 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at org.apache.http.impl.client.AbstractHttpClient.determineTarget(AbstractHttpClient.java:521)
06-15 17:21:14.880 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:511)
06-15 17:21:14.880 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:489)
06-15 17:21:14.880 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at com.example.harismahmood.fhfountainhouse.ContactUs$1asynctask.postdata(ContactUs.java:67)
06-15 17:21:14.880 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at com.example.harismahmood.fhfountainhouse.ContactUs$1asynctask.doInBackground(ContactUs.java:77)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at com.example.harismahmood.fhfountainhouse.ContactUs$1asynctask.doInBackground(ContactUs.java:49)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at android.os.AsyncTask$2.call(AsyncTask.java:287)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at java.util.concurrent.FutureTask.run(FutureTask.java:234)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
06-15 17:21:14.881 14599-14901/com.example.harismahmood.fhfountainhouse W/System.err:     at java.lang.Thread.run(Thread.java:838)
06-15 17:21:14.896 14599-14901/com.example.harismahmood.fhfountainhouse E/Error: java.lang.IllegalArgumentException: Host name may not be null

Answer 1

尝试URLEncoder.encode，因为在＆＃34;插入1.php＆＃34;之间有空格。它不允许使用空格，因此您必须对其进行编码

HttpPost httpPost = new HttpPost(URLEncoder.encode("http://192.168.10.33:80/insert 1.php"));

Async Task实现了httpconnection的Post方法

1 个答案: