我是android开发的新手。我想在cpanel中连接到远程数据库并根据用户名和密码显示数据。这些是我到目前为止的代码
登录表单android xml代码
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<EditText
android:id="@+id/txt_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/Password"
android:layout_below="@+id/Password"
android:layout_marginTop="18dp"
android:ems="10"
android:inputType="textPassword" />
<TextView
android:id="@+id/Username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="28dp"
android:text="Enter your username"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="@+id/Password"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/txt_username"
android:layout_below="@+id/txt_username"
android:layout_marginTop="30dp"
android:text="Enter your password"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/txt_username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/Username"
android:layout_below="@+id/Username"
android:layout_marginTop="16dp"
android:ems="10"
android:inputType="textPersonName" />
<Button
android:id="@+id/btn_log"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/txt_password"
android:layout_below="@+id/txt_password"
android:layout_marginTop="20dp"
android:text="Login"
android:textColor="@android:color/background_light" />
<Button
android:id="@+id/btn_cancel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/btn_log"
android:layout_below="@+id/btn_log"
android:layout_marginTop="20dp"
android:text="Cancel"
android:textColor="@android:color/background_light" />
</RelativeLayout>
这是我上面xml布局的java代码
package com.example.remotedb1;
import java.io.BufferedReader;
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.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
public static final String strURL = "http://cyberi-tech.com/khacheb/sig1.php";
StringBuilder sb=null;
TextView inlog;
TextView inpass;
Button log;
Button cancel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inlog = (TextView)findViewById(R.id.txt_username);
inpass = (TextView)findViewById(R.id.txt_password);
log = (Button)findViewById(R.id.btn_log);
cancel = (Button)findViewById(R.id.btn_cancel);
log.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
InputStream is = null;
String result = "";
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("username", inlog.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("password", inpass.getText().toString()));
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(strURL);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}
catch(Exception e){
Log.e("log_tag", "Error in http connection " + e.toString());
}
// Convertion de la requête en string
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}
catch(Exception e){
Log.e("log_tag", "Error converting result " + e.toString());
}
try{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++){
JSONObject json_data = jArray.getJSONObject(i);
Log.i("log_tag","cin: "+json_data.getInt("cin")+
", accountNb: "+json_data.getString("accountNb")+
", username: "+json_data.getString("username")+
", password: "+json_data.getString("password")
);
}
}
catch(JSONException e){
Log.e("log_tag", "Error parsing data " + e.toString());
}
}
});
cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
}
这是我的 php 文件
<?php
/**
* Database config variables
*/
$username = isset($_POST['username']) ? $_POST['username'] : '';
$password = isset($_POST['password']) ? $_POST['password'] : '';
if(strlen($username) && strlen($password)) {
mysql_connect("localhost","allround_root","ravi12345");//this is my cpanel database,username,password.
mysql_select_db("allround_db");
$username = mysql_real_escape($username);
$password = mysql_real_escape($password);
$query = mysql_query("SELECT cin,accountNb,username , password FROM users WHERE username = ‘$username’ AND password = ‘$password’");
$result = mysql_query($query) or die("Unable to verify user because : " . mysql_error());
while($row=mysql_fetch_assoc($query))
{
$output[]=$row;
}
print(json_encode($output));
mysql_close();
}
//end of if
?>
先生/女士，我的问题是
有字符串 url “ http://cyberi-tech.com/khacheb/sig1.php ”。我不明白我在我的 cpanel 中存储这个 php 文件的位置？
此外，“cyberi-tech.com”是指 -hostname “sig1.php”是指 -my php 文件，但我无法理解“khacheb”指的是 ?? 所以请帮助我。
谢谢你。