# Proxy Rotator - 可选

此服务是可选的，如果您希望使用 Proxy Rotator，请联系您的客户经理以获取一个域名。

我们不直接连接到单个 IP，而是为你提供一个统一的端点，对应你分配的代理列表。每次请求时，该端点都会获取一个不同的 IP。请查看下面的示例，了解如何将该端点用作代理。

{% hint style="info" %}
该 [vm.oxylabs.io](http://vm.oxylabs.io) 域名仅供示例。请联系您的客户经理，以获取转发给您的域名。
{% endhint %}

{% hint style="success" %}
Proxy Rotator 仅应与端口一起使用 `60000`.
{% endhint %}

#### 代码示例

{% tabs %}
{% tab title="cURL" %}

```shell
curl -x vm.oxylabs.io:60000 -U user1:pass1 https://ip.oxylabs.io/location
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
$query = curl_init('https://ip.oxylabs.io/location');
curl_setopt($query, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($query, CURLOPT_PROXY, 'http://vm.oxylabs.io:60000');
curl_setopt($query, CURLOPT_PROXYUSERPWD, "username:password");
$output = curl_exec($query);
curl_close($query);
如果 ($output) {
    echo $output;
}
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

response = requests.get(
    'https://ip.oxylabs.io/location',
    代理={'http': 'http://user1:pass1@vm.oxylabs.io:60000',
            'https': 'http://user1:pass1@vm.oxylabs.io:60000'}
)
print(response.text)
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net;

类 Example
{
    静态 void Main()
    {
        var proxy = new WebProxy
        {
            Address = new Uri($"http://vm.oxylabs.io:60000"),
            BypassProxyOnLocal = false,
            UseDefaultCredentials = false,
            Credentials = new NetworkCredential("username", "password")
        };

        var handler = new HttpClientHandler
        {
            Proxy = proxy,
        };

        HttpClient client = new HttpClient(handler);
        var task = Task.Run(async () =>
        {
            var response = await client.GetAsync("https://ip.oxylabs.io/location");
            var content = response.Content;
            var result = await content.ReadAsStringAsync();
            return result;
        });

        task.Wait();
        Console.WriteLine(task.Result);
    }
}
```

{% endtab %}
{% endtabs %}

### 使用 Proxy Rotator 进行会话控制

使用 Proxy Rotator 可以保持相同的 IP 地址。首先，你需要知道你的 Proxy Rotator 有多少个代理。然后添加 `--proxy-header "Proxy-Server: sXXX"` 标头到你的请求中，其中 `sXXX` 是代理的编号，例如， `s5` 或 `s2541`.

#### 代码示例

{% tabs %}
{% tab title="cURL" %}

```shell
user1@machine:~$ curl -x vm.oxylabs.io:60000 -U user1:pass1 https://ip.oxylabs.io/location --proxy-header "Proxy-Server: s10"
1.2.30.40
user1@machine:~$ curl -x vm.oxylabs.io:60000 -U user1:pass1 https://ip.oxylabs.io/location --proxy-header "Proxy-Server: s10"
1.2.30.40
user1@machine:~$ curl -x vm.oxylabs.io:60000 -U user1:pass1 https://ip.oxylabs.io/location --proxy-header "Proxy-Server: s10"
1.2.30.40
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
$query = curl_init('https://ip.oxylabs.io/location');
curl_setopt($query, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($query, CURLOPT_PROXY, 'http://vm.oxylabs.io:60000');
curl_setopt($query, CURLOPT_PROXYUSERPWD, "username:password");
curl_setopt($query, CURLOPT_PROXYHEADER, [
    "代理服务器：s10",
]);

$output = curl_exec($query);
curl_close($query);
如果 ($output) {
    echo $output;
}
```

{% endtab %}

{% tab title="Python" %}

```python
import requests


class ProxyAdapter(requests.adapters.HTTPAdapter):
    def proxy_headers(self, proxy):
        headers = super(ProxyAdapter, self).proxy_headers(proxy)
        headers['Proxy-Server'] = 's10'
        返回标头


s = requests.Session()
s.代理 = {'http': 'http://username:password@vm.oxylabs.io:60000',
             'https': 'http://username:password@vm.oxylabs.io:60000'}
s.mount('http://', ProxyAdapter())
s.mount('https://', ProxyAdapter())
response = s.get('https://ip.oxylabs.io/location')
print(response.text)
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net;

类 Example
{
    静态 void Main()
    {
        var client = new WebClient();
        client.Proxy = new WebProxy("http://vm.oxylabs.io:60000");
        client.Proxy.Credentials = new NetworkCredential("user1", "pass1");

        client.Headers.Add("Proxy-Server", "s10");

        Console.WriteLine(client.DownloadString("https://ip.oxylabs.io/location"));
    }
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developers.oxylabs.io/products/cn/dai-li/dedicated-datacenter-proxies/enterprise/proxy-rotator-optional.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.