Question

我正在开展一个项目，我遇到了一个棘手的问题。有两组输入字段，一组用于教师登录，另一组用于学生。输入字段中的值传递给同一文件中的脚本，然后使用ajax我将数据发送到localhost上的php文件。问题是当我在浏览器上运行它时没有问题，但在使用phonegap构建apk后，教师的登录有问题。

<!-- Student Login HTML CODE -->
<ul data-role="listview" data-style="inset">
    <li>
      <label for="username">
        Username:</label>
      <input type="text" id="loginStudentUsername" /></li>
    <li>
      <label for="password">
        Password:</label>
      <input type="password" id="loginStudentPassword" /></li>
</ul>
<a onclick="student_verification('http://192.168.237.1/project/index/Student_Verification.php','harshit')" id="modalview-reg-button" type="button" data-role="button">Login</a>

<!-- Teacher Login HTML -->
<ul data-role="listview" data-style="inset">
    <li>
      <label for="username">
        Username:</label>
      <input type="text" id="loginTeacherUsername" /></li>
    <li>
      <label for="password">
        Password:</label>
      <input type="password" id="loginTeacherPassword" /></li>
   </ul>
  <a onclick="teacher_verification('http://192.168.237.1/project/index/Teacher_Verification.php','harshit')" id="modalview-reg-button" type="button" data-role="button">Login</a>
</div>

使用的JavaScript函数：

  function student_verification(php_file, tagID) {
  var request =  get_XmlHttp();
  var  the_data = 'Name='+document.getElementById('loginStudentUsername').value+'&Password='+document.getElementById('loginStudentPassword').value;
  request.open("POST", php_file, true);         
 request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  request.send(the_data);       
  request.onreadystatechange = function() {
    if (request.readyState == 4) {
   if(request.responseText==0)
  {

        $("#modalview-login4").kendoMobileModalView("close");
        openError();
  }
  else{
    window.location.href = "https://www.google.com";
      } 
   }
  }
}
function teacher_verification(php_file, tagID) {
  var requestTeacher =  get_XmlHttp();  
  var the_data='Name='+document.getElementById('loginTeacherUsername').value+'&Password='+document.getElementById('loginTeacherPassword').value;
  requestTeacher.open("POST", php_file, true);          
  requestTeacher.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  requestTeacher.send(the_data);        


  requestTeacher.onreadystatechange = function() {
    if (requestTeacher.readyState == 4) {

  alert(requestTeacher.responseText);// here is the issue in android app which is described below..
   if(requestTeacher.responseText==0)
      {
        $("#modalview-login3").kendoMobileModalView("close");
        openError();
      }
  else{
    window.location.href = "https://www.google.com";
      } 
   }
  }

}

PHP文件：

Teacher_Verification.php -

    <?php
header('Access-Control-Allow-Origin: *');
    session_start();
    $name = $_POST['Name'];     // get data
    $pass = $_POST['Password'];

$con=mysqli_connect("192.168.237.1","root","","sams");
if(mysqli_connect_errno()){
    //echo mysqli_connect_error();
}

$val = mysqli_query($con,"SELECT * FROM teacher WHERE Name='$name' AND Password='$pass'");

if (mysqli_num_rows($val)==1) {
   echo("1");

   }
else 
{
echo("0");
}

Student_Verification.php：

<?php
header('Access-Control-Allow-Origin: *');
    session_start();
    $name = $_POST['Name'];     // get data
    $pass = $_POST['Password'];

$con=mysqli_connect("192.168.237.1","root","","sams");
if(mysqli_connect_errno()){
    //echo mysqli_connect_error();
}

$val = mysqli_query($con,"SELECT * FROM student WHERE Name='$name' AND Password='$pass'");

if (mysqli_num_rows($val)=='1') {
   echo("1");

   }
else 

    echo("0");  
?>

?>

现在，上面的代码应该做的是，如果在数据库中找到用户名和密码，那么它应该回显1其他echo 0并且取决于该人将被重定向，例如，如果登录是成功后，用户将被定向到www.google.com，否则将显示错误。这在浏览器上工作正常但是当我构建应用程序时，在做老师的登录时：

alert(requestTeacher.responseText)

默认情况下显示0，然后相应地重定向。该应用程序甚至不允许我在浏览器上正常工作时输入值。这个问题仅适用于教师部分，而不适用于学生部分。注意：这两个部分都在同一页面上。

我希望您已经理解了这个问题，我请求大家提出一个可能的解决方案。

输入字段在浏览器中工作正常但在使用Phonegap构建的android应用程序中没有

0 个答案: