Ajax请求可在浏览器上运行，但不能在Android设备上运行 [英] Ajax request works on browser but not on Android device
问题描述
我正在用Cordova制作一个简单的移动应用程序.当我在浏览器中对其进行测试时，我拥有的代码可以完美运行，但在Android手机上进行测试时，它会忽略成功功能，并直接打印db.js中的错误消息.
I am making a simple mobile app with Cordova. The code I have works perfectly when I test it in a browser but it ignores the success function when test on an Android phone and prints directly the error message from db.js.
这是相关的index.html
Here is the relevant index.html
<body>
<div class="app">
<h1></h1>
<div id="deviceready" class="blink">
<div>
<div id="output"></div>
</div>
</div>
</div>
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/jquery-2.1.4.min.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript" src="js/db.js"></script>
</body>
带有ajax函数的db.js
db.js with the ajax function
$(document).ready(function() {
$(document).bind('ready', function() {
var output = $('#output');
$.ajax({
url: 'http://domainName/server/folder/db.php',
dataType: 'jsonp',
jsonp: 'jsoncallback',
timeout: 5000,
success: function(data, status){
$.each(data, function(i, item){
var cards = '<h1>' + item.title + '</h1>' + item.body
+ '<br>' + '<img src="img/' + item.slug + '.jpg"' + '>' + '<br>' ;
output.append(cards);
});
},
error: function(){
output.text("There was an error loading the data.");
}
});
});
});
db.php
<?php
header('Content-type: application/json');
$host = 'hostname';
$dbname = 'database';
$user = 'username';
$pass = 'passoword';
$jsoncallback = isset($_GET['jsoncallback'])? $_GET['jsoncallback'] : "";
$con = mysql_connect($host, $user, $pass) or die("Could not connect: " . mysql_error());
mysql_select_db($dbname, $con);
$sql = "SELECT * FROM cards";
$result = mysql_query($sql) or die("Query error: " . mysql_error());
$records = array();
while($row = mysql_fetch_assoc($result)) {
$records[] = $row;
}
mysql_close($con);
echo $jsoncallback . '(' . json_encode($records) . ');';
所有域都列入白名单:
<access origin="*" />
Android清单中的权限:
Permissions in Android manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
有什么想法吗?
推荐答案
我通过使用Phonegap(代替Cordova)构建了一个新项目来使其工作.否则，完全相同的代码.仍然不知道为什么它不能与Cordova一起使用.
I made it work by building a new project with Phonegap (instead of Cordova). Exactly the same code otherwise. Still no idea why it wouldn't work with Cordova.
这篇关于Ajax请求可在浏览器上运行，但不能在Android设备上运行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
