android代码
package com.example.election;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
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.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class authentification extends Activity {
Button Quitter, Annuler, Valider;
EditText login,password;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.authentification);
Quitter = (Button) findViewById(R.id.Quitter);
Valider = (Button) findViewById(R.id.Valider);
Annuler = (Button) findViewById(R.id.Annuler);
login = (EditText) findViewById(R.id.login);
password = (EditText) findViewById(R.id.password);
Valider.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
verifier_admin(v);
}
});
Quitter.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(getApplicationContext(),
MainActivity.class);
startActivity(intent);
}
});
}
public void reset(View v){
login = (EditText) findViewById(R.id.login);
password = (EditText) findViewById(R.id.password);
login.setText("");
password.setText("");
}
public void verifier_admin(View v){
InputStream is = null;
HttpClient httpclient = null;
HttpPost httppost = null;
HttpResponse response = null;
HttpEntity entity = null;
ArrayList<NameValuePair> nameValuePairs = null;
String pass;
String log = login.getText().toString();
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://172.16.50.239:80/android/test.php");
HttpContext localContext = new BasicHttpContext();
pass =password.getText().toString();
if(log.length()>0 ){
try{
List<NameValuePair> var = new ArrayList<NameValuePair>(2);
var.add(new BasicNameValuePair("log",log));
//var.add(new BasicNameValuePair("pass",pass));
// post.setEntity(new UrlEncodedFormEntity (var,"utf-8"));
post.setEntity(new UrlEncodedFormEntity (var));
ResponseHandler<String> responseHandler=new BasicResponseHandler();
String reponse =client.execute(post,responseHandler);
//BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
//String s = reader.readLine();
Toast.makeText(this, "message envoyé",Toast.LENGTH_SHORT).show();
login.setText("");
}
catch(ClientProtocolException e )
{
e.printStackTrace();
}
catch(IOException e )
{
e.printStackTrace();
}
}
else {
Toast.makeText(this, "veuillez entrez vos données",Toast.LENGTH_SHORT).show();
}
}
}
php code
<?php
if( isset($_POST) ){
print_r($_POST);
//connexion base
$link = mysql_connect("localhost","root","") or die ('ERREUR '.mysql_error()) ;
$bd_selected=mysql_select_db("mydb",$link) or die ('ERREUR1 '.mysql_error());
$req1=" SELECT * FROM user WHERE (login= '$log')";
$sql=mysql_query($req);
$data = mysql_num_rows($sql);// affiche le nombre de ligne satisfaisant condition
echo $req;
mysql_close($link);
}
?>
错误是$ log = $ _ POST ['log'] undefined
答案 0 :(得分:0)
试用此代码 你只需在代码中留下一行就可以了。
<?php
$log=$_POST['log']; // Here define log value in $log variable
if( isset($_POST) )
{
print_r($_POST);
//connexion base
$link = mysql_connect("localhost","root","") or die ('ERREUR '.mysql_error()) ;
$bd_selected=mysql_select_db("mydb",$link) or die ('ERREUR1 '.mysql_error());
$req1=" SELECT * FROM user WHERE (login= '$log')";
$sql=mysql_query($req1);
$data = mysql_num_rows($sql);// affiche le nombre de ligne satisfaisant condition
echo $req1;
mysql_close($link);
}
?>