# 发送请求

默认情况下，Oxylabs 代理和 Proxy Rotator 使用基本的 [**HTTP 身份验证**](https://en.wikipedia.org/wiki/Basic_access_authentication) 该方法要求您提供用户名和密码。您可以通过联系您的专属客户经理或我们的支持团队获取凭据，邮箱： [**support@oxylabs.io**](mailto:support@oxylabs.io).

我们也支持基于白名单 IP 地址的身份验证；参见 [**IP 白名单**](https://developers.oxylabs.io/documentation/cn/dai-li/dedicated-isp-proxies/enterprise/restful)。根据您的身份验证方法，您可能需要更改代理端口。

| 代理端口    | 用法                                                                                                                                                                                     |
| ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `60000` | 当使用登录凭据（用户名和密码）时，代理需要使用此端口。它也用于 [**Proxy Rotator** ](https://developers.oxylabs.io/documentation/cn/dai-li/dedicated-isp-proxies/enterprise/proxy-rotator-optional)在同时使用登录凭据和白名单 IP 时。 |
| `65432` | 当通过白名单 IP 进行授权时，代理需要此端口。                                                                                                                                                               |

#### 代码示例

如果您想通过用户名和密码身份验证方法使用独享 ISP 代理：

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

```shell
curl -x 1.2.3.4:60000 -U user1:pass1 http://ip.oxylabs.io/location
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
    $username = 'user1';
    $password = 'pass1';
    $proxy = '1.2.3.4:60000';
    $query = curl_init('https://ip.oxylabs.io/location');
    curl_setopt($query, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($query, CURLOPT_PROXY, "http://$proxy");
    curl_setopt($query, CURLOPT_PROXYUSERPWD, "$username:$password");
    $output = curl_exec($query);
    curl_close($query);
    if ($output)
        echo $output;
?>
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

response = requests.get(
    'https://ip.oxylabs.io/location',
    proxies={'http': 'http://username:password@1.2.3.4:60000',
            'https': 'http://username:password@1.2.3.4:60000'}
)
print(response.text)
```

{% endtab %}

{% tab title="C#" %}

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

class Example
{
    static void Main()
    {
        var proxy = new WebProxy
        {
            Address = new Uri($"http://1.2.3.4:60000"),
            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 %}

如果您想通过白名单 IP 身份验证方法使用独享 ISP 代理：

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

```shell
curl -x 1.2.3.4:65432 https://ip.oxylabs.io/location 
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
    $proxy = '1.2.3.4:65432';
    $query = curl_init('https://ip.oxylabs.io/location');
    curl_setopt($query, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($query, CURLOPT_PROXY, "http://$proxy");
    $output = curl_exec($query);
    curl_close($query);
    if ($output)
        echo $output;
?>
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

response = requests.get(
    'https://ip.oxylabs.io/location',
    proxies={'http': 'http://1.2.3.4:65432',
            'https': 'http://1.2.3.4:65432'}
)
print(response.text)
```

{% endtab %}

{% tab title="C#" %}

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

class Example
{
    static void Main()
    {
        var proxy = new WebProxy
        {
            Address = new Uri($"http://1.2.3.4:65432"),
            BypassProxyOnLocal = false,
            UseDefaultCredentials = false,
        };

        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 %}