Java 从Android发布到PHP文件的数据返回空字符串
我研究了有关这个主题的大量材料。我从他们所有人身上都学到了一些例子，但都没有用 我正在从Android应用程序向php文件发布数据（txtUsername和txtPassword） 此代码中的问题是，HTTPConnection将空字符串发布到php文件。 我使用了Uri字符串生成器和其他构建字符串的方法。。。它们都返回“已解析的空字符串” 主活动代码 * //创建GetText方法Java 从Android发布到PHP文件的数据返回空字符串,java,php,android,string,Java,Php,Android,String,我研究了有关这个主题的大量材料。我从他们所有人身上都学到了一些例子，但都没有用 我正在从Android应用程序向php文件发布数据（txtUsername和txtPassword） 此代码中的问题是，HTTPConnection将空字符串发布到php文件。 我使用了Uri字符串生成器和其他构建字符串的方法。。。它们都返回“已解析的空字符串” 主活动代码 * //创建GetText方法 private class GetText extends AsyncTask<Void,
private class GetText extends AsyncTask<Void, Void, Void> {//} throws UnsupportedEncodingException {
@Override
protected Void doInBackground(Void...params){
BufferedReader reader = null;
// Send data
try {
// Defined URL where to send data
URL url = new URL("http://www.naomiedify.com/school/test/login2.php");
//URLConnection con = url.openConnection();
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Accept-Charset", "UTF-8");
con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
con.setRequestMethod("POST");
con.setReadTimeout(10000);
con.setConnectTimeout(15000);
//this method also returns empty strings
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("txtUserName", username)
.appendQueryParameter("txtPassword", password)
.appendQueryParameter("cmbType", "Aptitude Test");
query = builder.build().getEncodedQuery();
con.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
wr.write( query );
wr.flush();
wr.close();
reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
StringBuilder sb = new StringBuilder();
String line;
while((line = reader.readLine()) != null) {
sb.append(line + "\n");
Log.d("Response: ", "> " + line);
}
reader.close();
responseData = sb.toString();
}
catch (MalformedURLException e) {
e.printStackTrace();
responseData = e.toString();
}
catch (IOException e) {
e.printStackTrace();
responseData = e.toString();
}
return null;
}
@Override
protected void onPostExecute(Void result){
statusBar.setText(responseData);
super.onPostExecute(result);
}
}
public void loginUser(View login) {// Called when the user taps the login button
Intent intent = new Intent(this, DisplayWelcomeScreen.class);//start the ui
new GetText().execute();
try{
//check the login using the post back data
if (responseData.equals("User Found.")) {
message = "Welcome"; //message for successful login
// Show respsonse on activity
statusBar.setText( responseData );
Bundle bundle = new Bundle();//bundle the message and parse it to the next activity
bundle.putString("dispMsg", message);//bundle the message using the variable dispMsg
intent.putExtras(bundle);
startActivity(intent);
} else {
message = "Incorrect Username or Password. Try again!";
statusBar.setTextColor(Color.parseColor("#ff0000"));
statusBar.setBackgroundColor(Color.parseColor("#d3d3d3"));
// Show response on activity
statusBar.setText( responseData + ": Incorrect Username or Password.");
}
}
catch(Exception ex) {
statusBar.setText("URL Exeption! "+ex);
}
}
}
<?php
$dataComingFrom = substr($_SERVER['HTTP_USER_AGENT'], 0, 7);
//echo $dataComingFrom;
$con = mysqli_connect($hostname_school,$username_school,"$password_school");//connect to server
mysqli_select_db($con,$_db);
if (mysqli_connect_errno()){//if error connecting to server, return error message
die("Failed to connect to MySQL: " . mysqli_connect_error());
}else if(!mysqli_select_db($con,$_db)) {//if no error connecting to server, try to select db to see whether it already exists.
if ($perform = mysqli_query($con,"CREATE DATABASE IF NOT EXISTS $_db")){ //if no db exists on the server, create the db.
$msg = "Database $_db has been created successfully";
//echo $msg;
}else { echo mysqli_errno($con) .": Error creating database: " . mysqli_error($con);}//if it can't create db, return error message
}else{ //if db was selected, it means the db already exists
//$data = "You have already created this database!";//return message that db already exists
//die("$data <br>");//kill the script
//you can perform the login process here
//$ip = preg_replace( '#[^0-9.]#', '', getenv( 'REMOTE_ADDR' ) );
$username = stripslashes( str_replace( "[^A-Z a-z0-9]", "", $_POST[ 'txtUserName' ] ) );
$plainPass = stripslashes( str_replace( "[^A-Z a-z0-9]", "", $_POST[ 'txtPassword' ] ) );
$password = strrev(md5($plainPass));
//run the query to search for the username and password for a match
//$query = "SELECT * FROM $tbl_name WHERE first_name = '$un' AND password = '$pw'";
if(empty($username) or empty($plainPass)){die("Empty Strings Parsed.");}
$user = mysqli_query($con,"SELECT * FROM ap_student WHERE AS_Email ='".$username."' AND AS_Password ='".$password."' AND
AS_Status ='Confirmed!'") or die("Unable to verify user due to: " . mysqli_error($con));
//$insert = mysqli_query($con,"UPDATE ap_student SET AS_Password = '".$password."' WHERE AS_Id = 1") or die(mysqli_error($con));
$result = mysqli_num_rows($user);
if ($result > 0){$returnedString = "User Found.";}else {$returnedString = "User Not Found";echo $returnedString;}
}
?>
if (Data.equals("User Found.")) {
message = "Welcome";
statusBar.setText( message );
Bundle bundle = new Bundle();
bundle.putString("dispMsg", message);
intent.putExtras(bundle);
startActivity(intent);
} else {
message = "Incorrect Username or Password. Try again!";
statusBar.setText(message);
}
}
}
}
username = un.getText().toString();//convert username and password to string and parse
password = pw.getText().toString();//them to variables
在onCreate（）中为时过早。将这些行移到loginUser（）。我非常感谢您的贡献和不辞辛劳的支持。 我已经找到了解决问题的办法 以下是文档的完整代码
package com.example.examinationportal;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.graphics.Color;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.app.IntentService;
import android.app.PendingIntent;
import org.apache.http.NameValuePair;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.io.InputStream;
public class MainActivity extends AppCompatActivity {
public String message = "";
public String Data = "";
public String responseData = "";
public String username = "";
public String password = "";
public String data = "";
public Intent intent;
public StringBuilder sb;
public String line;
TextView statusBar, titleLogin;
EditText un, pw;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//initialize the status bar textview control
statusBar = (TextView) findViewById(R.id.textViewStatusMsg);
titleLogin = (TextView) findViewById(R.id.textViewLogin);//title text of this UI
}
public void newUser(View register) {
Intent i = new Intent(this, RegisterUserActivity.class);//start the ui for new user
startActivity(i);
}
public void loginUser(View login) {// Called when the user taps the login button
intent = new Intent(this, DisplayWelcomeScreen.class);//start the ui
// Get user defined values
un = (EditText) findViewById(R.id.editTextUsername);//username field
pw = (EditText) findViewById(R.id.editTextPassword);//password field
username = un.getText().toString();//convert username and password to string and parse
password = pw.getText().toString();//them to variables
new GetText().execute();
}
// Create GetText Method
public class GetText extends AsyncTask<Void, Void, Void> {//} throws UnsupportedEncodingException {
@Override
protected Void doInBackground(Void...params){
BufferedReader reader = null;
// Send data
try {
// Defined URL where to send data
URL url = new URL("http://www.naomiedify.com/school/test/login2.php");
//URLConnection con = url.openConnection();
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Accept-Charset", "UTF-8");
con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
con.setRequestMethod("POST");
con.setReadTimeout(10000);
con.setConnectTimeout(15000);
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("txtUserName", username)
.appendQueryParameter("txtPassword", password)
.appendQueryParameter("cmbType", "Aptitude Test");
String query = builder.build().getEncodedQuery();
// Send POST data request
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
//OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
wr.write(query);
wr.flush();
wr.close();
os.close();
// Get the server response
reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
sb = new StringBuilder();
// Read Server Response
while ((line = reader.readLine()) != null) {
// Append server response in string
sb.append(line);
//sb.append(line + "\n"); //this line causes error also...
Log.d("Returned Line", "is " + line);
}
reader.close();
responseData = sb.toString();
Log.d("Returned Data", "sb " + sb);
}catch (IOException e) {
//e.printStackTrace();
//responseData = e.toString();
}
return null;
}
@Override
protected void onPostExecute(Void result){
if (responseData.equals( "User Found." )) {
message = "Welcome";
Bundle bundle = new Bundle();//bundle the message and parse it to the next activity
bundle.putString("dispMsg", message);//bundle the message using the variable dispMsg
intent.putExtras(bundle);
startActivity(intent);
statusBar.setText(message);
} else {
message = "Incorrect Username or Password. Try again!";
statusBar.setText(message);
}
super.onPostExecute(result);
}
}
}
package com.example.examinationationportal；
导入android.content.Intent；
导入android.database.Cursor；
导入android.database.sqlite.SQLiteDatabase；
导入android.database.sqlite.SQLiteOpenHelper；
导入android.graphics.Color；
导入android.net.Uri；
导入android.os.AsyncTask；
导入android.provider.Settings；
导入android.support.v7.app.AppActivity；
导入android.os.Bundle；
导入android.support.v7.widget.Toolbar；
导入android.util.Log；
导入android.view.view；
导入android.widget.EditText；
导入android.widget.TextView；
导入android.app.IntentService；
导入android.app.pendingent；
导入org.apache.http.NameValuePair；
导入java.io.BufferedReader；
导入java.io.BufferedWriter；
导入java.io.IOException；
导入java.io.InputStreamReader；
导入java.io.OutputStream；
导入java.io.OutputStreamWriter；
导入java.io.UnsupportedEncodingException；
导入java.net.HttpURLConnection；
导入java.net.MalformedURLException；
导入java.net.URL；
导入java.net.URLConnection；
导入java.net.urlcoder；
导入java.util.ArrayList；
导入java.io.InputStream；
公共类MainActivity扩展了AppCompatActivity{
公共字符串消息=”；
公共字符串数据=”；
公共字符串responseData=“”；
公共字符串用户名=”；
公共字符串密码=”；
公共字符串数据=”；
公众意向；
公共图书馆；
公共弦线；
文本视图状态栏，标题登录；
编辑文本un，pw；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
//初始化状态栏textview控件
状态栏=（TextView）findViewById（R.id.textViewStatusMsg）；
titleLogin=（TextView）findViewById（R.id.textViewLogin）；//此UI的标题文本
}
公共无效新用户（查看注册表）{
Intent i=newintent（this，registerSerActivity.class）；//为新用户启动ui
星触觉（i）；
}
public void login用户（查看登录）{//在用户点击登录按钮时调用
intent=newintent（this，DisplayWelcomeScreen.class）；//启动ui
//获取用户定义的值
un=（EditText）findViewById（R.id.editTextUsername）；//用户名字段
pw=（EditText）findViewById（R.id.editTextPassword）；//密码字段
username=un.getText（）.toString（）；//将用户名和密码转换为字符串并解析
password=pw.getText（）.toString（）；//将它们转换为变量
新建GetText（）.execute（）；
}
//创建GetText方法
公共类GetText扩展AsyncTask{/}引发不受支持的CodingException{
@凌驾
受保护的Void doInBackground（Void…参数）{
BufferedReader reader=null；
//发送数据
试一试{
//已定义用于发送数据的URL
URL=新URL（“http://www.naomiedify.com/school/test/login2.php");
//URLConnection con=url.openConnection（）；
HttpURLConnection con=（HttpURLConnection）url.openConnection（）；
con.setRequestProperty（“接受字符集”、“UTF-8”）；
con.setRequestProperty（“内容类型”，“应用程序/x-www-form-urlencoded；字符集=UTF-8”）；
con.setRequestMethod（“POST”）；
con.setReadTimeout（10000）；
con.设置连接超时（15000）；
Uri.Builder=新的Uri.Builder（）
.appendQueryParameter（“txtUserName”，用户名）
.appendQueryParameter（“txtPassword”，password）
附录参数（“CMB类型”、“能力倾向测试”）；
字符串查询=builder.build（）.getEncodedQuery（）；
//发送POST数据请求
con.设置输出（真）；
OutputStream os=con.getOutputStream（）；
//OutputStreamWriter wr=新的OutputStreamWriter（con.getOutputStream（））；
BufferedWriter wr=新的BufferedWriter（新的OutputStreamWriter（os，“UTF-8”））；
wr.write（查询）；
wr.flush（）；
wr.close（）；
os.close（）；
//获取服务器响应
reader=newbufferedReader（newInputStreamReader（con.getInputStream（））；
sb=新的StringBuilder（）；
//读取服务器响应
而（（line=reader.readLine（））！=null）{
package com.example.examinationportal;
import statements here...
public class MainActivity extends AppCompatActivity {
public String message = "";
SQLiteDatabase myDB = null;
public String TableName = "Users";
public String Data = "";
public String responseData = "";
public String username = "";
public String password = "";
public String data = "";
TextView statusBar, titleLogin;
EditText un, pw;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Get user defined values
un = (EditText) findViewById(R.id.editTextUsername);//username field
pw = (EditText) findViewById(R.id.editTextPassword);//password field
username = un.getText().toString();//convert username and password to string and parse
password = pw.getText().toString();//them to variables
//initialize the status bar textview control
statusBar = (TextView) findViewById(R.id.textViewStatusMsg);
titleLogin = (TextView) findViewById(R.id.textViewLogin);//title text of this UI
}
// Create GetText Method
public class GetText extends AsyncTask<Void, Void, Void> {//} throws UnsupportedEncodingException {
@Override
protected Void doInBackground(Void...params){
BufferedReader reader = null;
// Send data
try {
// Defined URL where to send data
URL url = new URL("http://www.naomiedify.com/school/test/login2.php");
//URLConnection con = url.openConnection();
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Accept-Charset", "UTF-8");
con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
con.setRequestMethod("POST");
con.setReadTimeout(10000);
con.setConnectTimeout(15000);
/* data = URLEncoder.encode("txtUserName", "UTF-8") +"=" +URLEncoder.encode(username,"UTF-8")
+"&" +URLEncoder.encode("txtPassword", "UTF-8") +"=" +URLEncoder.encode(password, "UTF-8")
+"&" +URLEncoder.encode("cmbType", "UTF-8") +"=" +URLEncoder.encode("Aptitude Test", "UTF-8");*/
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("txtUserName", username)
.appendQueryParameter("txtPassword", password)
.appendQueryParameter("cmbType", "Aptitude Test");
String query = builder.build().getEncodedQuery();
// Send POST data request
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
//OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
wr.write( query );
wr.flush();
wr.close();
os.close();
//con.connect();
// Get the server response
reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
StringBuilder sb = new StringBuilder();
String line;
// Read Server Response
while((line = reader.readLine()) != null) {
// Append server response in string
sb.append(line + "\n");
Log.d("Response: ", "> " + line);
}
reader.close();
responseData = sb.toString();
}
/* catch (MalformedURLException e) {
e.printStackTrace();
responseData = e.toString();
// new URL() failed
}*/
catch (IOException e) {
e.printStackTrace();
responseData = e.toString();
// openConnection() failed
}
return null;
}
@Override
protected void onPostExecute(Void result){
statusBar.setText(responseData);
super.onPostExecute(result);
try{
//check the login using the post back data
if (responseData.equals("User Found.")) {
message = "Welcome"; //message for successful login
// Show respsonse on activity
statusBar.setText( message );
} else {
message = "Incorrect Username or Password. Try again!";
statusBar.setTextColor(Color.parseColor("#ff0000"));
statusBar.setBackgroundColor(Color.parseColor("#d3d3d3"));
// Show response on activity
statusBar.setText("Incorrect Username or Password.");
}
}
catch(Exception ex) {
statusBar.setText("URL Exeption! "+ex);
}
}
}
public void loginUser(View login) {// Called when the user taps the login button
new GetText().execute();
/*Intent intent = new Intent(this, DisplayWelcomeScreen.class);//start the ui
Bundle bundle = new Bundle();//bundle the message and parse it to the next activity
bundle.putString("dispMsg", message);//bundle the message using the variable dispMsg
intent.putExtras(bundle);
startActivity(intent);*/
}
}
import statemen;
public class MainActivity extends AppCompatActivity {
public String message = "";
public String Data = "";
public String responseData = "";
public String username = "";
public String password = "";
public String data = "";
Intent intent;
TextView statusBar, titleLogin;
EditText un, pw;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//initialize the status bar textview control
statusBar = (TextView) findViewById(R.id.textViewStatusMsg);
titleLogin = (TextView) findViewById(R.id.textViewLogin);//title text of this UI
}
public void newUser(View register) {
Intent i = new Intent(this, RegisterUserActivity.class);//start the ui for new user
startActivity(i);
}
public void loginUser(View login) {// Called when the user taps the login button
intent = new Intent(this, DisplayWelcomeScreen.class);//start the ui
// Get user defined values
un = (EditText) findViewById(R.id.editTextUsername);//username field
pw = (EditText) findViewById(R.id.editTextPassword);//password field
username = un.getText().toString();//convert username and password to string and parse
password = pw.getText().toString();//them to variables
new GetText().execute();
}
// Create GetText Method
public class GetText extends AsyncTask<Void, Void, Void> {//} throws UnsupportedEncodingException {
@Override
protected Void doInBackground(Void...params){
BufferedReader reader = null;
// Send data
try {
// Defined URL where to send data
URL url = new URL("http://www.naomiedify.com/school/test/login2.php");
//URLConnection con = url.openConnection();
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Accept-Charset", "UTF-8");
con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
con.setRequestMethod("POST");
con.setReadTimeout(10000);
con.setConnectTimeout(15000);
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("txtUserName", username)
.appendQueryParameter("txtPassword", password)
.appendQueryParameter("cmbType", "Aptitude Test");
String query = builder.build().getEncodedQuery();
// Send POST data request
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
//OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
wr.write( query );
wr.flush();
wr.close();
os.close();
// Get the server response
reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
StringBuilder sb = new StringBuilder();
String line;
// Read Server Response
while((line = reader.readLine()) != null) {
// Append server response in string
sb.append(line + "\n");
//Log.d("", "" + line);
}
reader.close();
responseData = sb.toString();
Log.d("Server Data", ":"+responseData);
Data = responseData;
}
catch (IOException e) {
e.printStackTrace();
responseData = e.toString();
}
return null;
}
@Override
protected void onPostExecute(Void result){
super.onPostExecute(result);
statusBar.setText(Data);
if (Data.equals("User Found.")) {
message = "Welcome";
statusBar.setText( message );
Bundle bundle = new Bundle();
bundle.putString("dispMsg", message);
intent.putExtras(bundle);
startActivity(intent);
} else {
message = "Incorrect Username or Password. Try again!";
statusBar.setText(message);
}
}
}
}
new GetText().execute();
username = un.getText().toString();//convert username and password to string and parse
password = pw.getText().toString();//them to variables
package com.example.examinationportal;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.graphics.Color;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.app.IntentService;
import android.app.PendingIntent;
import org.apache.http.NameValuePair;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.io.InputStream;
public class MainActivity extends AppCompatActivity {
public String message = "";
public String Data = "";
public String responseData = "";
public String username = "";
public String password = "";
public String data = "";
public Intent intent;
public StringBuilder sb;
public String line;
TextView statusBar, titleLogin;
EditText un, pw;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//initialize the status bar textview control
statusBar = (TextView) findViewById(R.id.textViewStatusMsg);
titleLogin = (TextView) findViewById(R.id.textViewLogin);//title text of this UI
}
public void newUser(View register) {
Intent i = new Intent(this, RegisterUserActivity.class);//start the ui for new user
startActivity(i);
}
public void loginUser(View login) {// Called when the user taps the login button
intent = new Intent(this, DisplayWelcomeScreen.class);//start the ui
// Get user defined values
un = (EditText) findViewById(R.id.editTextUsername);//username field
pw = (EditText) findViewById(R.id.editTextPassword);//password field
username = un.getText().toString();//convert username and password to string and parse
password = pw.getText().toString();//them to variables
new GetText().execute();
}
// Create GetText Method
public class GetText extends AsyncTask<Void, Void, Void> {//} throws UnsupportedEncodingException {
@Override
protected Void doInBackground(Void...params){
BufferedReader reader = null;
// Send data
try {
// Defined URL where to send data
URL url = new URL("http://www.naomiedify.com/school/test/login2.php");
//URLConnection con = url.openConnection();
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Accept-Charset", "UTF-8");
con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
con.setRequestMethod("POST");
con.setReadTimeout(10000);
con.setConnectTimeout(15000);
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("txtUserName", username)
.appendQueryParameter("txtPassword", password)
.appendQueryParameter("cmbType", "Aptitude Test");
String query = builder.build().getEncodedQuery();
// Send POST data request
con.setDoOutput(true);
OutputStream os = con.getOutputStream();
//OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
wr.write(query);
wr.flush();
wr.close();
os.close();
// Get the server response
reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
sb = new StringBuilder();
// Read Server Response
while ((line = reader.readLine()) != null) {
// Append server response in string
sb.append(line);
//sb.append(line + "\n"); //this line causes error also...
Log.d("Returned Line", "is " + line);
}
reader.close();
responseData = sb.toString();
Log.d("Returned Data", "sb " + sb);
}catch (IOException e) {
//e.printStackTrace();
//responseData = e.toString();
}
return null;
}
@Override
protected void onPostExecute(Void result){
if (responseData.equals( "User Found." )) {
message = "Welcome";
Bundle bundle = new Bundle();//bundle the message and parse it to the next activity
bundle.putString("dispMsg", message);//bundle the message using the variable dispMsg
intent.putExtras(bundle);
startActivity(intent);
statusBar.setText(message);
} else {
message = "Incorrect Username or Password. Try again!";
statusBar.setText(message);
}
super.onPostExecute(result);
}
}
}