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我在我的应用程序中创建了登录页面，但是当用户输入正确的用户并将其传递到屏幕上显示用户找到但应用程序未重定向到下一个布局时，我遇到了问题。

PHP代码是：

<?php

$host="XXXXXXXXXXXXXX"; 
$username="aXXXXX62";
$password="XXXXXX";
$db_name="XXXXXn";
$tbl_name="mXXXXs";


mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");


$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);


$count=mysql_num_rows($result);


if($count==1){
echo "User Found";
session_register("myusername");
session_register("mypassword"); 
}
else {
echo "Wrong Username or Password";
}
?>

这是我的java代码：

import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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 android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
    Button b,signup;
    EditText myusername,mypassword;
    TextView tv;
    HttpPost httppost;
    StringBuffer buffer;
    HttpResponse response;
    HttpClient httpclient;
    List<NameValuePair> nameValuePairs;
    ProgressDialog dialog = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);

        b = (Button)findViewById(R.id.login);
        signup = (Button) findViewById(R.id.signup);
        myusername = (EditText)findViewById(R.id.username);
        mypassword= (EditText)findViewById(R.id.password);
        tv = (TextView)findViewById(R.id.tv);

        signup.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startActivity(new Intent( getBaseContext(), signup.class));
            }
        });    





        b.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog = ProgressDialog.show(MainActivity.this, "", 
                        "Validating user...", true);
                 new Thread(new Runnable() {
                        public void run() {
                            login();                          
                        }
                      }).start();               
            }
        });
    }

    void login(){
        try{            
            httpclient=new DefaultHttpClient();
            httppost= new HttpPost("http://getjobcompleted.info/checklogin.php"); 
            //add your data
            nameValuePairs = new ArrayList<NameValuePair>(2);
            // Always use the same variable name for posting i.e the android side variable name and php side variable name should be similar, 
            nameValuePairs.add(new BasicNameValuePair("myusername",myusername.getText().toString().trim()));  ;
            nameValuePairs.add(new BasicNameValuePair("mypassword",mypassword.getText().toString().trim())); 
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            //Execute HTTP Post Request
            response=httpclient.execute(httppost);
            // edited by James from coderzheaven.. from here....
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            final String response = httpclient.execute(httppost, responseHandler);
            System.out.println("Response : " + response); 
            runOnUiThread(new Runnable() {
                public void run() {
                    tv.setText("Response from PHP : " + response);
                    dialog.dismiss();
                }
            });

            if(response.equalsIgnoreCase("User Found")){
                 startActivity(new Intent(getBaseContext(), view_create_url.class));        
            }


        }catch(Exception e){
            dialog.dismiss();
            System.out.println("Exception : " + e.getMessage());
        }
    }
}

APP显示用户已通过身份验证，但何时重定向到下一页。请让我知道需要改变什么？

4

1 回答 1

0

您应该从响应中获取实体并从中创建输入流

HttpEntity entity = response.getEntity();
InputStream is = entity.getContent();

然后从输入流中读取并检查所需的响应。

于 2013-04-15T14:27:00.313 回答