与PHP服务器的httpURLConnection给出不同的响应（URL在Web浏览器上有效）

Question

The code requests HTTP connection to server that runs with php (phpMyAdmin). 该代码请求与使用php（phpMyAdmin）运行的服务器的HTTP连接。 It gives response with JSONObject. 它使用JSONObject给出响应。

It worked when I was testing in Asia, however it gives different response in the United States. 当我在亚洲进行测试时，它起作用了，但是在美国却给出了不同的响应。

With given url: 使用给定的URL：

target = "http://example.com/request.php?value=DDPS"

This works on web browser but in Android device it gives: 这适用于网络浏览器，但在Android设备中提供：

<html><body><script type="text/javascript" src="/cupid.js"></script><script>
.....path=/";location.href="http://example.com/request.php?value=DDPS
&ckattempt=1";</script></body></html>

This fails to create JSONObject which is obvious. 这无法创建显而易见的JSONObject。

What would be possible problem on this behavior? 此行为可能会出现什么问题？

I have set permission to server that allows access from all continents. 我已对允许从所有大洲访问的服务器设置了权限。

Here is my httpURLconnection code: 这是我的httpURLconnection代码：

    try{
            URL url = new URL(target);
            HttpURLConnection httpURLConnection = (HttpURLConnection)url.openConnection();
            httpURLConnection.setInstanceFollowRedirects(true);
            InputStream inputstream = httpURLConnection.getInputStream();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputstream));
            String temp;
            StringBuilder stringBuilder = new StringBuilder();
            while((temp = bufferedReader.readLine()) != null)
            {
                stringBuilder.append(temp).append("\n");
            }

            bufferedReader.close();
            inputstream.close();
            httpURLConnection.disconnect();

            return stringBuilder.toString().trim();

        }catch (Exception e)            {
            e.printStackTrace();
        }

EDIT: 编辑：

HttpURLConnection.setFollowRedirects(true);

gives same behavior. 给出相同的行为。

Here is my php code for getting data from database and send response in JSON format. 这是我的php代码，用于从数据库获取数据并以JSON格式发送响应。 On which point should I implement file_get_contents? 我应该在哪一点实施file_get_contents？

<?php
header("Content-Type: text/html; charset=UTF-8");
$con = mysqli_connect("localhost", "exampleID", "examplePW", "exampleID");

$value = $_GET["title"];

$result = mysqli_query($con, "SELECT * FROM DB WHERE title = '$value'");

$response = array();

while($row = mysqli_fetch_array($result)){
    array_push($response, array("item1"=>$row[1], "item2"=>$row[2], "item3"=>$row[3], "item4"=>$row[4]));
}

echo json_encode(array("response"=>$response), JSON_UNESCAPED_UNICODE);
mysqli_close($con);
?>

Answer 1

probably issue with server redirects. 服务器重定向可能有问题。 Android gets the first response. Android得到了第一反应。 you could verify it with using a php scropt and file_get_contents method 您可以使用php scropt和file_get_contents方法进行验证

You can also try 您也可以尝试

HttpURLConnection.setFollowRedirects(true);

Answer 2

Solved. 解决了。

There was no issue in android codes. android代码中没有问题。
The issue was from the server I was connecting to. 问题出在我连接的服务器上。

It blocked some unknown IP addresses, so I needed to give permission to server to accept certain IP access. 它阻止了一些未知的IP地址，因此我需要授予服务器许可以接受某些IP访问。

与PHP服务器的httpURLConnection给出不同的响应（URL在Web浏览器上有效）

问题描述

2 个解决方案

解决方案1
0 2017-08-26 05:17:05

解决方案2
0 2017-08-30 04:02:04

与PHP服务器的httpURLConnection给出不同的响应（URL在Web浏览器上有效）

问题描述

2 个解决方案

解决方案1 0 2017-08-26 05:17:05

解决方案2 0 2017-08-30 04:02:04

解决方案1
0 2017-08-26 05:17:05

解决方案2
0 2017-08-30 04:02:04