登录到网站无法正常工作
您好,我无法使这个应用程序登录到我的网站。 这里是php代码:
<?php
session_start();
include 'api/connect.php';
$username = mysql_real_escape_string(htmlentities($_POST['username']));
$password = mysql_real_escape_string(htmlentities(sha1($_POST['password'])));
$query = mysql_query("SELECT * FROM `beta` WHERE `username` = '" . $username . "' AND `password` = '" . $password . "'") or die(mysql_query());
// Start the long process
$rows = mysql_num_rows($query);
if($rows == 1){
while($list = mysql_fetch_assoc($query)) {
$output = $list;
echo json_encode($output);
}
mysql_close();
}
?>
这里是android代码:
package com.awsomechat;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
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 org.json.JSONObject;
import android.os.Bundle;
import android.app.Activity;
import android.content.SharedPreferences;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
EditText etUser, etPass;
Button blogin;
// Username, Password
String username, password;
// Make an HTTP Client
HttpClient httpclient;
HttpPost httppost;
// Store the username and password in an array
ArrayList<NameValuePair> nameValuePairs;
// HTTP Response & Entity
HttpResponse response;
HttpEntity entity;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initialise();
}
private void initialise() {
// TODO Auto-generated method stub
etUser = (EditText) findViewById(R.id.etUser);
etPass = (EditText) findViewById(R.id.etPass);
blogin = (Button) findViewById(R.id.etSubmit);
blogin.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// The user tapped the Login button, start logging in
// Default HTTPClient
httpclient = new DefaultHttpClient();
// Post the values to the AwsomeChat Login script
httppost = new HttpPost("http://beta-awsomechat.tk/login.php");
// THe values we are working with
username = etUser.getText().toString();
password = etPass.getText().toString();
// Try to login. Start the login validation/process
try {
nameValuePairs = new ArrayList<NameValuePair>();
// Store the username and password in an array
nameValuePairs.add(new BasicNameValuePair("username", username));
nameValuePairs.add(new BasicNameValuePair("password", password));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response = httpclient.execute(httppost);
if(response.getStatusLine().getStatusCode() == 200){
// Get the info given to us.
entity = response.getEntity();
if(entity != null){
InputStream instream = entity.getContent();
JSONObject jsonResponse = new JSONObject(convertStreamToString(instream));
String retUser = jsonResponse.getString("username");
String retPass = jsonResponse.getString("password");
// Start the validation process
if(username.equals(retUser) && password.equals(retPass)){
//
//
SharedPreferences sp = getSharedPreferences("logindetails", 0);
SharedPreferences.Editor spedit = sp.edit();
spedit.putString("user", username);
spedit.putString("pass", password);
//
spedit.commit();
Toast.makeText(getBaseContext(), "Login Success", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getBaseContext(), "Login Fialed.", Toast.LENGTH_SHORT).show();
}
}
}
} catch(Exception e) {
e.printStackTrace();
Toast.makeText(getBaseContext(), "Login Failed.", Toast.LENGTH_SHORT).show();
}
}
private static String convertStreamToString(InputStream is) {
/*
* To convert the InputStream to String we use the BufferedReader.readLine()
* method. We iterate until the BufferedReader return null which means
* there's no more data to read. Each line will appended to a StringBuilder
* and returned as String.
*/
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
由于某种原因,它每次都会说“登录失败”。 我修复了php代码中的所有bug,它必须是android代码,因为php代码中没有错误。 LogCat什么也没说,控制台也没有发现问题。
**编辑:我在LogCat中出现错误:
06-15 16:55:16.400:E / ActivityThread(870):服务com.android.exchange.ExchangeService已泄漏ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40cfaac0最初在此绑定06-15 16: 55:16.400:E / ActivityThread(870):android.app.ServiceConnectionLeaked:服务com.android.exchange.ExchangeService已泄漏ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40cfaac0最初在此绑定06-15 16 :55:16.400:E / ActivityThread(870):在android.app.LoadedApk $ ServiceDispatcher。(LoadedApk.java:969)06-15 16:55:16.400:E / ActivityThread(870):在android.app.LoadedApk .getServiceDispatcher(LoadedApk.java:863)06-15 16:55:16.400:E / ActivityThread(870):at android.app.ContextImpl.bindService(ContextImpl.java:1418)06-15 16:55:16.400:E / ActivityThread(870):在android.app.ContextImpl.bindService(ContextImpl.java:1407)06-15 16:55:16.400:E / ActivityThread(870):在android.content.ContextWrapper.bindService(ContextWrapp er.java:473)06-15 16:55:16.400:E / ActivityThread(870):at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)06-15 16:55:16.400: E / ActivityThread(870):at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)06-15 16:55:16.400:E / ActivityThread(870):at com.android.emailcommon.service .ServiceProxy.test(ServiceProxy.java:191)06-15 16:55:16.400:E / ActivityThread(870):at com.android.exchange.ExchangeService $ 7.run(ExchangeService.java:1850)06-15 16: 55:16.400:E / ActivityThread(870):at com.android.emailcommon.utility.Utility $ 2.doInBackground(Utility.java:551)06-15 16:55:16.400:E / ActivityThread(870):at com。 android.emailcommon.utility.Utility $ 2.doInBackground(Utility.java:549)06-15 16:55:16.400:E / ActivityThread(870):在android.os.AsyncTask $ 2.call(AsyncTask.java:287)06 -15 16:55:16.400:E / ActivityThread(870):在java.util.concurrent.FutureTask.run(FutureTask.java:234)06-15 16:55:16.400:E / ActivityThread(870):在java .util.concurrent.Th readPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)06-15 16:55:16.400:E / ActivityThread(870):在java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:573)06-15 16: 55:16.400:E / ActivityThread(870):在java.lang.Thread.run(Thread.java:856)06-15 16:55:16.514:E / StrictMode(870):null 06-15 16:55: 16.514:E / StrictMode(870):android.app.ServiceConnectionLeaked:Service com.android.exchange.ExchangeService泄漏了ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40cfaac0,原来在此绑定06-15 16:55 :16.514:E / StrictMode(870):在android.app.LoadedApk $ ServiceDispatcher。(LoadedApk.java:969)06-15 16:55:16.514:E / StrictMode(870):在android.app.LoadedApk.getServiceDispatcher (LoadedApk.java:863)06-15 16:55:16.514:E / StrictMode(870):在android.app.ContextImpl.bindService(ContextImpl.java:1418)06-15 16:55:16.514:E / StrictMode (870):at android.app.ContextImpl.bindService(ContextImpl.java:1407)06-15 16:55:16.514:E / Strict 模式(870):在android.content.ContextWrapper.bindService(ContextWrapper.java:473)06-15 16:55:16.514:E / StrictMode(870):at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy .java:157)06-15 16:55:16.514:E / StrictMode(870):at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)06-15 16:55:16.514:E / StrictMode(870):at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)06-15 16:55:16.514:E / StrictMode(870):at com.android.exchange.ExchangeService $ 7 .run(ExchangeService.java:1850)06-15 16:55:16.514:E / StrictMode(870):at com.android.emailcommon.utility.Utility $ 2.doInBackground(Utility.java:551)06-15 16: 55:16.514:E / StrictMode(870):在com.android.emailcommon.utility.Utility $ 2.doInBackground(Utility.java:549)06-15 16:55:16.514:E / StrictMode(870):在android。 os.AsyncTask $ 2.call(AsyncTask.java:287)06-15 16:55:16.514:E / StrictMode(870):在java.util.concurrent.FutureTask.run(FutureTask.java:234)06-15 16 :55:16.514:E / StrictMode (870):在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)06-15 16:55:16.514:E / StrictMode(870):在java.util.concurrent.ThreadPoolExecutor $ Worker.run ThreadPoolExecutor.java:573)06-15 16:55:16.514:E / StrictMode(870):at java.lang.Thread.run(Thread.java:856)06-15 16:55:28.370:E / SurfaceFlinger 37):ro.sf.lcd_density必须定义为构建属性
按下按钮发送登录详细信息时,总会在Log Cat中弹出此错误:
06-15 16:59:44.379:E / SurfaceFlinger(37):ro.sf.lcd_density必须定义为构建属性**
我认为问题是你的retUser和retPassword。 您是否尝试过调试以查看其价值? 我怀疑它们是空的,因此在将它们与用户名和密码进行比较时返回false。 当参数为null时,String的equals方法返回false。 这使得检查失败并进入else块。 在这里,您将显示“登录失败”。 而无需将堆栈跟踪打印到LogCat或控制台。
我首先调试PHP代码,看它是否实际返回JSON编码的消息。 如果是这样,请确保将字节流正确转换为JSONObject。
编辑
正如我在其中一条评论中看到的那样,在将它存储在数据库中之前,您已经使用PHP对密码进行了散列处理。 因此,您需要在java中使用相同的散列算法对输入的密码进行散列,然后比较散列。 如果它们相同,则提供的密码与从数据库中检索到的密码相同。
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