> For the complete documentation index, see [llms.txt](https://developers.oxylabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.oxylabs.io/products/cn/dai-li/dedicated-datacenter-proxies/self-service/making-requests.md).

# 发起请求

向 `https://ip.oxylabs.io/location` 使用列表中的第一个 Dedicated Datacenter 代理。将 `USERNAME` 和 `PASSWORD` 替换为你的代理用户凭证。 

{% hint style="info" %}
使用 [**ip.oxylabs.io/location**](https://ip.oxylabs.io/location) 来检查你的 IP 参数——该域名提供来自四个地理定位数据库的信息：MaxMind、IP2Location、DB-IP 和 IPinfo.io。参数包括 IP 地址、提供商、国家、城市、ZIP 代码、ASN、组织名称、时区以及元数据（当数据库披露时）。
{% endhint %}

```sh
curl -x ddc.oxylabs.io:8001 -U "user-USERNAME:PASSWORD" https://ip.oxylabs.io/location 
```

请注意，你必须按照上面的用户名字符串构建示例来成功发起请求。将 `user-` 字符串追加到你的用户名后，并注意凭证区分大小写。

**代码示例**

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

```sh
curl -x ddc.oxylabs.io:8001 -U "user-USERNAME:PASSWORD" https://ip.oxylabs.io/location 
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

用户名 = 'USERNAME'
password = 'PASSWORD'
proxy = 'ddc.oxylabs.io:8001'

代理 = {
   "https": ('https://user-%s:%s@%s' % (username, password, proxy))
}

response=requests.get("https://ip.oxylabs.io/location", proxies=proxies)

print(response.content)
```

{% endtab %}

{% tab title="Node.js" %}

```javascript
const axios = require("axios");
const https = require("https");

const client = axios.create({
    httpsAgent: new https.Agent({
        rejectUnauthorized: false,
    }),
});
const username = 'USERNAME';
const password = 'PASSWORD'

client
    .get("https://ip.oxylabs.io/location", {
        proxy: {
            protocol: "https",
            host: "ddc.oxylabs.io",
            port: 8001,
            auth: {
                username: `user-${username}`,
                password: password,
            },
        },
    })
    .then((res) => {
        console.log(res.data);
    })
    .catch((err) => console.error(err));

```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$username = 'USERNAME';
$password = 'PASSWORD';
$proxy = 'https://ddc.oxylabs.io:8001';
$target = 'https://ip.oxylabs.io/location';

$request = curl_init($target);
curl_setopt($request, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($request, CURLOPT_PROXY, $proxy);
curl_setopt($request, CURLOPT_PROXYUSERPWD, "user-$username:$password");
$responseBody = curl_exec($request);
$error = curl_error($request);
curl_close($request);

if ($responseBody !== false) {
    echo 'Response: ' . $responseBody;
} else {
    echo 'Failed to connect to proxy: ' . $error;
}
```

{% endtab %}

{% tab title="Go" %}

```go
package main

import (
	"fmt"
	"io"
	"net/http"
	"net/url"
)

func main() {
	username, password, entry := "USERNAME", "PASSWORD", "ddc.oxylabs.io:8001"
	proxy, err := url.Parse(fmt.Sprintf("https://user-%s:%s@%s", username, password, entry))
	if err != nil {
		panic(err)
	}

	transport := &http.Transport{
		Proxy: http.ProxyURL(proxy),
	}
	client := &http.Client{Transport: transport}
	target := "https://ip.oxylabs.io/location"
	response, err := client.Get(target)
	if err != nil {
		panic(err)
	}
	defer response.Body.Close()

	body, err := io.ReadAll(response.Body)
	if err != nil {
		panic(err)
	}

	fmt.Println("响应:")
	fmt.Println(string(body))
}
```

{% endtab %}

{% tab title="Java" %}

```java
package com.example;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Base64;

import org.apache.hc.client5.http.fluent.Request;
import org.apache.hc.core5.http.HttpHost;

public class App {
    public static void main(String[] args) throws IOException, URISyntaxException {
        String target = "http://ip.oxylabs.io/location";
        String username = "USERNAME";
        String password = "PASSWORD";
        String proxy = "ddc.oxylabs.io:8001";

        URI proxyURI = new URI(String.format("https://user-%s:%s@%s", username, password, proxy));

        String basicAuth = new String(
                Base64.getEncoder()
                        .encode(
                                proxyURI.getUserInfo().getBytes()));
        String response = Request.get(target)
                .addHeader("Proxy-Authorization", "Basic " + basicAuth)
                .viaProxy(HttpHost.create(proxyURI))
                .execute().returnContent().asString();

        System.out.println(response);
    }
}

```

{% endtab %}

{% tab title="C#" %}

```csharp
using System.Net;

// .NET 目前不支持 HTTPS 代理
var proxy = new WebProxy {
    Address = new Uri("http://ddc.oxylabs.io:8001"),
    Credentials = new NetworkCredential(
        userName: "user-USERNAME",
        password: "PASSWORD"
    )
};

var httpClientHandler = new HttpClientHandler {Proxy = proxy};

using var client = new HttpClient(handler: httpClientHandler, disposeHandler: true);

var result = await client.GetStringAsync("https://ip.oxylabs.io/location");
Console.WriteLine(result);
```

{% endtab %}
{% endtabs %}

代理列表中的第一个 IP 将始终使用`8001` 端口。要使用不同的代理发出请求，你需要找到你的 [**代理列表**](/products/cn/dai-li/dedicated-datacenter-proxies/self-service/proxy-list.md) 并从那里取端口值。&#x20;


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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/self-service/making-requests.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.