# 城市

Thordata用戶在代理路由中設置`city`參數，即可實現 IP 到目標城市的精確定位。例如：`country-US-city-houston`

{% hint style="success" %}
[**點擊此處**](https://vip-upload.thordata.com/files/file/list_of_states.xlsx) 下載完整城市列表。

我們支持全球任意城市，但無法保證所有城市均設有代理節點。在多數主要城市中，覆蓋良好且提供多個代理選項。
{% endhint %}

以下是一些城市參數的有效示例：

| 國家-城市  | 參數                        |
| ------ | ------------------------- |
| 德國-慕尼黑 | `country-DE-city-munich`  |
| 印度-新德里 | `country-IN-city-delhi`   |
| 泰國-曼谷  | `country-TH-city-bangkok` |
| 韓國-首爾  | `country-KR-city-seoul`   |
| 日本-東京  | `country-JP-city-tokyo`   |

**代碼示例：**

在此示例中，從美國海沃德的一個隨機IP地址執行對 **`ipinfo.thordata.com`** 的查詢：

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

```sh
curl -x "https://td-customer-USERNAME-country-us-city-hayward:PASSWORD@t.na.thordata.net:9999" "https://ipinfo.thordata.com"
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

class csharp_https
{
    static void Main(string[] args)
    {
        Task t = new Task(DownloadPageAsync);
        t.Start();
        Console.ReadLine();
    }

    static async void DownloadPageAsync()
    {
        string page = "https://ipinfo.thordata.com";

        var proxy = new WebProxy("https://t.na.thordata.net:9999")
        {
            UseDefaultCredentials = false,
            Credentials = new NetworkCredential(
                userName: "td-customer-USERNAME-country-us-city-hayward",
                password: "PASSWORD")
        };

        var httpClientHandler = new HttpClientHandler()
        {
            Proxy = proxy,
            ServerCertificateCustomValidationCallback = HttpClientHandler.DangerousAcceptAnyServerCertificateValidator
        };

        var client = new HttpClient(handler: httpClientHandler, disposeHandler: true);
        var response = await client.GetAsync(page);

        using (HttpContent content = response.Content)
        {
            string result = await content.ReadAsStringAsync();
            Console.WriteLine(result);
            Console.WriteLine("Press any key to exit.");
            Console.ReadKey();
        }
    }
}
```

{% endtab %}

{% tab title="Go" %}

```go
package main

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

const (
	resourceUrl = "https://ipinfo.thordata.com"
	proxyHost   = "t.na.thordata.net:9999"
	username    = "td-customer-USERNAME-country-us-city-hayward"
	password    = "PASSWORD"
)

func main() {
	proxyUrl := &url.URL{
		Scheme: "https",
		User:   url.UserPassword(username, password),
		Host:   proxyHost,
	}

	client := http.Client{
		Transport: &http.Transport{
			Proxy: http.ProxyURL(proxyUrl),
		},
	}

	resp, err := client.Get(resourceUrl)
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatal(err)
	}

	bodyString := string(body)
	fmt.Println(bodyString)
}

```

{% endtab %}

{% tab title="Java" %}

```java
iimport org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class JavaHttps {
    public static final String username = "td-customer-USERNAME-country-us-city-hayward";
    public static final String password = "PASSWORD";
    public static final int port = 9999;
    public static final String proxyHost = "t.na.thordata.net";
    public CloseableHttpClient client;

    public JavaHttps() {
        HttpHost proxy = new HttpHost(proxyHost, port, "https");
        CredentialsProvider cred_provider = new BasicCredentialsProvider();
        cred_provider.setCredentials(new AuthScope(proxy),
                new UsernamePasswordCredentials(username, password));
        client = HttpClients.custom()
                .setConnectionManager(new BasicHttpClientConnectionManager())
                .setProxy(proxy)
                .setDefaultCredentialsProvider(cred_provider)
                .build();
    }

    public String request(String url) throws IOException {
        HttpGet request = new HttpGet(url);
        CloseableHttpResponse response = client.execute(request);
        try {
            return EntityUtils.toString(response.getEntity());
        } finally { response.close(); }
    }

    public void close() throws IOException { client.close(); }

    public static void main(String[] args) throws IOException {
        JavaHttps client = new JavaHttps();
        try {
            System.out.println(client.request("https://ipinfo.thordata.com"));
        } finally { client.close(); }
    }
}

```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
  $url = 'http://ipinfo.thordata.com';
  $proxy = 't.na.thordata.net';
  $port = 9999;
  $user = 'td-customer-USERNAME-country-us-city-hayward';
  $psw = 'Password';

  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

  curl_setopt($ch, CURLOPT_PROXY, "$proxy:$port");
  curl_setopt($ch, CURLOPT_PROXYUSERPWD, "$user:$psw");
  $result = curl_exec($ch);
  curl_close($ch);

  if ($result)
  {
      echo $result . PHP_EOL;
  }
?>
```

{% endtab %}

{% tab title="Python" %}

```python
import requests

username = "td-customer-USERNAME-country-us-city-hayward"
password = "PASSWORD"
proxy_server = "t.na.thordata.net:9999"

proxies = {"https": f"https://{username}:{password}@{proxy_server}"}

response = requests.get("https://ipinfo.thordata.com", proxies=proxies)
print(response.text)
```

{% endtab %}

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

```
const rp = require('request-promise');

const username = "td-customer-USERNAME-country-us-city-hayward";
const password = "PASSWORD";
const proxyServer = "t.na.thordata.net:9999";

rp({
    url: 'https://ipinfo.thordata.com',
    proxy: `https://${username}:${password}@${proxyServer}`,
})
.then(function(data) {
    console.log(data);
})
.catch(function(err) {
    console.error(err);
});
```

{% endtab %}

{% tab title="Ruby" %}

```ruby
require "uri"
require 'net/http'
require 'openssl'

proxy_host = 't.na.thordata.net'
proxy_port = 9999
proxy_user = 'td-customer-USERNAME-country-us-city-hayward'
proxy_pass = 'PASSWORD'

uri = URI.parse('https://ipinfo.thordata.com')

proxy = Net::HTTP::Proxy(proxy_host, proxy_port, proxy_user, proxy_pass)

req = Net::HTTP::Get.new(uri)

result = proxy.start(uri.host, uri.port, use_ssl: true, ssl_version: :TLSv1_2) do |http|
  http.request(req)
end

puts result.body
```

{% endtab %}
{% endtabs %}