JavaScript 渲染

如果您要抓取的页面需要加载 JavaScript 才能将所有必需数据动态加载到 DOM 中，与其自己设置并使用无头浏览器，不如在请求中包含 "X-Oxylabs-Render: html" 请求中包含此头的所有请求将被完全渲染，所有数据将以 HTML 文件或 PNG 截图的形式存储（取决于传入的参数）。

JavaScript 渲染抓取页面需要更多时间。使用 JavaScript 渲染时，请将客户端超时时间设置为 180 秒。

为确保最低流量消耗，我们的系统在页面渲染期间不会加载不必要的资源。

此参数有两个可用值：

html （渲染页面的 HTML）
png （可以保存为 PNG 的原始字节）

代码示例

curl -k -v -x https://unblock.oxylabs.io:60000 \
-U 'USERNAME:PASSWORD' \
'https://ip.oxylabs.io/location' \
-H 'X-Oxylabs-Render: html'

import requests

# 在此处使用您的 Web Unblocker 登录凭据。
USERNAME, PASSWORD = 'YOUR_USERNAME', 'YOUR_PASSWORD'

# 定义代理字典。
proxies = {
  'http': f'http://{USERNAME}:{PASSWORD}@unblock.oxylabs.io:60000',
  'https': f'https://{USERNAME}:{PASSWORD}@unblock.oxylabs.io:60000',
}

headers = {
    'X-Oxylabs-Render': 'html'
}

response = requests.get(
    'https://ip.oxylabs.io/location',
    verify=False,  # 需要忽略证书
    proxies=proxies,
    headers=headers,
)

# 将结果页面打印到标准输出
print(response.text)

# 将返回的 HTML 保存到 result.html 文件
with open('result.html', 'w') as f:
    f.write(response.text)

import fetch from 'node-fetch';
import { HttpsProxyAgent } from 'https-proxy-agent';

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';

const agent = new HttpsProxyAgent(
  `https://${username}:${password}@unblock.oxylabs.io:60000`
);

// 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0;

const headers = {
   'X-Oxylabs-Render': 'html',
}

const response = await fetch('https://ip.oxylabs.io/location', {
  method: 'get',
  headers: headers,
  agent: agent,
});

console.log(await response.text());

<?php
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://ip.oxylabs.io/location');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_PROXY, 'https://unblock.oxylabs.io:60000');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'YOUR_USERNAME' . ':' . 'YOUR_PASSWORD');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

curl_setopt_array($ch, array(
    CURLOPT_HTTPHEADER  => array(
        'X-Oxylabs-Render: html'
    )
));

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);

package main

import (
	"crypto/tls"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
)

func main() {
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	proxyUrl, _ := url.Parse(
		fmt.Sprintf(
			"https://%s:%[email protected]:60000",
			Username,
			Password,
		),
	)
	customTransport := &http.Transport{Proxy: http.ProxyURL(proxyUrl)}

	// 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
	customTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}

	client := &http.Client{Transport: customTransport}
	request, _ := http.NewRequest("GET",
		"https://ip.oxylabs.io/location",
		nil,
	)
	
	// 添加自定义 Cookie
        request.Header.Add("X-Oxylabs-Render", "html")
        
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}

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

namespace OxyApi
{
    class Program
    {
        static async Task Main(string[] args)
        {
            var webProxy = new WebProxy
            {
                Address = new Uri("https://unblock.oxylabs.io:60000"),
                BypassProxyOnLocal = false,
                UseDefaultCredentials = false,

                Credentials = new NetworkCredential(
                userName: "YOUR_USERNAME",
                password: "YOUR_PASSWORD"
                )
            };

            var httpClientHandler = new HttpClientHandler
            {
                Proxy = webProxy,
            };

            // 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
            httpClientHandler.ClientCertificateOptions = ClientCertificateOption.Manual;
            httpClientHandler.ServerCertificateCustomValidationCallback =
                (httpRequestMessage, cert, cetChain, policyErrors) =>
                {
                    return true;
                };


            var client = new HttpClient(handler: httpClientHandler, disposeHandler: true);
            
            // 添加自定义 Cookie
            client.DefaultRequestHeaders.Add("X-Oxylabs-Render", "html");
            
            Uri baseUri = new Uri("https://ip.oxylabs.io/location");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Get, "");

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}

package org.example;

import org.apache.hc.client5.http.auth.AuthScope;
import org.apache.hc.client5.http.auth.CredentialsProvider;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.config.RequestConfig;
import org.apache.hc.client5.http.impl.auth.CredentialsProviderBuilder;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.client5.http.ssl.NoopHostnameVerifier;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactoryBuilder;
import org.apache.hc.client5.http.ssl.TrustAllStrategy;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.message.StatusLine;
import org.apache.hc.core5.ssl.SSLContextBuilder;

import java.util.Arrays;
import java.util.Properties;


public class Main {

    public static void main(final String[] args)throws Exception {
        final CredentialsProvider credsProvider = CredentialsProviderBuilder.create()
                .add(new AuthScope("unblock.oxylabs.io", 60000), "USERNAME", "PASSWORD".toCharArray())
                .build();
        final HttpHost target = new HttpHost("https", "ip.oxylabs.io", 443);
        final HttpHost proxy = new HttpHost("https", "unblock.oxylabs.io", 60000);
        try (final CloseableHttpClient httpclient = HttpClients.custom()
                .setDefaultCredentialsProvider(credsProvider)
                .setProxy(proxy)
                // 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
                .setConnectionManager(PoolingHttpClientConnectionManagerBuilder.create()
                        .setSSLSocketFactory(SSLConnectionSocketFactoryBuilder.create()
                                .setSslContext(SSLContextBuilder.create()
                                        .loadTrustMaterial(TrustAllStrategy.INSTANCE)
                                        .build())
                                .setHostnameVerifier(NoopHostnameVerifier.INSTANCE)
                                .build())
                        .build())
                .build()) {

            final RequestConfig config = RequestConfig.custom()
                    .build();
            final HttpGet request = new HttpGet("/location");
            request.addHeader("X-Oxylabs-Render","html");
            request.setConfig(config);

            System.out.println("Executing request " + request.getMethod() + " " + request.getUri() +
                    " via " + proxy + " headers: " + Arrays.toString(request.getHeaders()));

            httpclient.execute(target, request, response -> {
                System.out.println("----------------------------------------");
                System.out.println(request + "->" + new StatusLine(response));
                EntityUtils.consume(response.getEntity());
                return null;
            });
        }
    }
}

抓取网站 HTML

在此示例中，我们将渲染 YouTube 主页并抓取页面内容。通常如果在不使用 Javascript 渲染的情况下使用 Web Unblocker，YouTube 主页会看起来像这样：

添加 "X-Oxylabs-Render: html" 如下示例中提供的头将启用 JavaScript 渲染并返回渲染后的页面 HTML：

curl -k -v -x https://unblock.oxylabs.io:60000 \
-U 'USERNAME:PASSWORD' \
'https://youtube.com' \
-H 'X-Oxylabs-Render: html'

import requests

# 在此处使用您的 Web Unblocker 登录凭据。
USERNAME, PASSWORD = 'YOUR_USERNAME', 'YOUR_PASSWORD'

# 定义代理字典。
proxies = {
  'http': f'http://{USERNAME}:{PASSWORD}@unblock.oxylabs.io:60000',
  'https': f'https://{USERNAME}:{PASSWORD}@unblock.oxylabs.io:60000',
}

headers = {
    'X-Oxylabs-Render': 'html'
}

response = requests.get(
    'https://youtube.com',
    verify=False,  # 需要忽略证书
    proxies=proxies,
    headers=headers,
)

# 将结果页面打印到标准输出
print(response.text)

# 将返回的 HTML 保存到 result.html 文件
with open('result.html', 'w') as f:
    f.write(response.text)

import fetch from 'node-fetch';
import { HttpsProxyAgent } from 'https-proxy-agent';

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';

const agent = new HttpsProxyAgent(
  `https://${username}:${password}@unblock.oxylabs.io:60000`
);

// 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0;

const headers = {
   'X-Oxylabs-Render': 'html',
}

const response = await fetch('https://youtube.com', {
  method: 'get',
  headers: headers,
  agent: agent,
});

console.log(await response.text());

<?php
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://youtube.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_PROXY, 'https://unblock.oxylabs.io:60000');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'YOUR_USERNAME' . ':' . 'YOUR_PASSWORD');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

curl_setopt_array($ch, [
    CURLOPT_HTTPHEADER  => [
        'X-Oxylabs-Render: html'
    ]
]);

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);

package main

import (
	"crypto/tls"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
)

func main() {
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	proxyUrl, _ := url.Parse(
		fmt.Sprintf(
			"https://%s:%[email protected]:60000",
			Username,
			Password,
		),
	)
	customTransport := &http.Transport{Proxy: http.ProxyURL(proxyUrl)}

	// 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
	customTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}

	client := &http.Client{Transport: customTransport}
	request, _ := http.NewRequest("GET",
		"https://youtube.com",
		nil,
	)
	
	// 添加自定义 Cookie
        request.Header.Add("X-Oxylabs-Render", "html")
        
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)

	responseText, _ := ioutil.ReadAll(response.Body)
	fmt.Println(string(responseText))
}

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

namespace OxyApi
{
    class Program
    {
        static async Task Main(string[] args)
        {
            var webProxy = new WebProxy
            {
                Address = new Uri("https://unblock.oxylabs.io:60000"),
                BypassProxyOnLocal = false,
                UseDefaultCredentials = false,

                Credentials = new NetworkCredential(
                userName: "YOUR_USERNAME",
                password: "YOUR_PASSWORD"
                )
            };

            var httpClientHandler = new HttpClientHandler
            {
                Proxy = webProxy,
            };

            // 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
            httpClientHandler.ClientCertificateOptions = ClientCertificateOption.Manual;
            httpClientHandler.ServerCertificateCustomValidationCallback =
                (httpRequestMessage, cert, cetChain, policyErrors) =>
                {
                    return true;
                };


            var client = new HttpClient(handler: httpClientHandler, disposeHandler: true);
            
            // 添加自定义头
            client.DefaultRequestHeaders.Add("X-Oxylabs-Render", "html");
            
            Uri baseUri = new Uri("https://youtube.com");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Get, "");

            var response = await client.SendAsync(requestMessage);
            var contents = await response.Content.ReadAsStringAsync();

            Console.WriteLine(contents);
        }
    }
}

package org.example;

import org.apache.hc.client5.http.auth.AuthScope;
import org.apache.hc.client5.http.auth.CredentialsProvider;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.config.RequestConfig;
import org.apache.hc.client5.http.impl.auth.CredentialsProviderBuilder;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.client5.http.ssl.NoopHostnameVerifier;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactoryBuilder;
import org.apache.hc.client5.http.ssl.TrustAllStrategy;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.message.StatusLine;
import org.apache.hc.core5.ssl.SSLContextBuilder;

import java.util.Arrays;
import java.util.Properties;


public class Main {

    public static void main(final String[] args)throws Exception {
        final CredentialsProvider credsProvider = CredentialsProviderBuilder.create()
                .add(new AuthScope("unblock.oxylabs.io", 60000), "USERNAME", "PASSWORD".toCharArray())
                .build();
        final HttpHost target = new HttpHost("https", "youtube.com", 443);
        final HttpHost proxy = new HttpHost("https", "unblock.oxylabs.io", 60000);
        try (final CloseableHttpClient httpclient = HttpClients.custom()
                .setDefaultCredentialsProvider(credsProvider)
                .setProxy(proxy)
                // 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
                .setConnectionManager(PoolingHttpClientConnectionManagerBuilder.create()
                        .setSSLSocketFactory(SSLConnectionSocketFactoryBuilder.create()
                                .setSslContext(SSLContextBuilder.create()
                                        .loadTrustMaterial(TrustAllStrategy.INSTANCE)
                                        .build())
                                .setHostnameVerifier(NoopHostnameVerifier.INSTANCE)
                                .build())
                        .build())
                .build()) {

            final RequestConfig config = RequestConfig.custom()
                    .build();
            final HttpGet request = new HttpGet("/");
            request.addHeader("X-Oxylabs-Render","html");
            request.setConfig(config);

            System.out.println("Executing request " + request.getMethod() + " " + request.getUri() +
                    " via " + proxy + " headers: " + Arrays.toString(request.getHeaders()));

            httpclient.execute(target, request, response -> {
                System.out.println("----------------------------------------");
                System.out.println(request + "->" + new StatusLine(response));
                EntityUtils.consume(response.getEntity());
                return null;
            });
        }
    }
}

在浏览器中打开的 HTML 文件应如下所示：

获取完全渲染页面的截图

要获取 PNG 格式的截图而不是页面 HTML，需要提供 "X-Oxylabs-Render: png" 头。

curl -k -v -x https://unblock.oxylabs.io:60000 \
-U 'USERNAME:PASSWORD' \
'https://youtube.com' \
-H 'X-Oxylabs-Render: png' > rendered_page.png

import requests

# 在此处使用您的 Web Unblocker 登录凭据。
USERNAME, PASSWORD = 'YOUR_USERNAME', 'YOUR_PASSWORD'

# 定义代理字典。
proxies = {
  'http': f'http://{USERNAME}:{PASSWORD}@unblock.oxylabs.io:60000',
  'https': f'https://{USERNAME}:{PASSWORD}@unblock.oxylabs.io:60000',
}

headers = {
    'X-Oxylabs-Render': 'png'
}

response = requests.get(
    'https://youtube.com',
    verify=False,  # 需要忽略证书
    proxies=proxies,
    headers=headers,
)

# 将截图保存为 PNG 文件
with open('rendered_page.png', 'wb') as f:
  f.write(response.content)

import fs from 'fs';
import fetch from 'node-fetch';
import { HttpsProxyAgent } from 'https-proxy-agent';

const username = 'YOUR_USERNAME';
const password = 'YOUR_PASSWORD';

const agent = new HttpsProxyAgent(
  `https://${username}:${password}@unblock.oxylabs.io:60000`
);

// 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0;

const headers = {
   'X-Oxylabs-Render': 'png',
}

await fetch('https://youtube.com', {
  method: 'get',
  headers: headers,
  agent: agent,
}).then(res => 
  res.body.pipe(fs.createWriteStream('./rendered_page.png'))
  );

console.log('Image was saved');

<?php
$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://youtube.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_PROXY, 'https://unblock.oxylabs.io:60000');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'YOUR_USERNAME' . ':' . 'YOUR_PASSWORD');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

curl_setopt_array($ch, [
    CURLOPT_HTTPHEADER  => [
        'X-Oxylabs-Render: png'
    ]
]);

$result = curl_exec($ch);

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close ($ch);

if(file_exists('rendered_page.png')){
    unlink('rendered_page.png');
}
$fp = fopen('rendered_page.png','wb');
fwrite($fp, $result);
fclose($fp);

package main

import (
	"crypto/tls"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
)

func main() {
	const Username = "YOUR_USERNAME"
	const Password = "YOUR_PASSWORD"

	proxyUrl, _ := url.Parse(
		fmt.Sprintf(
			"https://%s:%[email protected]:60000",
			Username,
			Password,
		),
	)
	customTransport := &http.Transport{Proxy: http.ProxyURL(proxyUrl)}

	// 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
	customTransport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}

	client := &http.Client{Transport: customTransport}
	request, _ := http.NewRequest("GET",
		"https://youtube.com",
		nil,
	)
	
	// 添加自定义 Cookie
        request.Header.Add("X-Oxylabs-Render", "png")
        
	request.SetBasicAuth(Username, Password)
	response, _ := client.Do(request)
	
	responseData, _ := ioutil.ReadAll(response.Body)
	response.Body.Close()
	ioutil.WriteFile("rendered_page.png", responseData, 0666)

	log.Println("Image was saved")
}

using System;
using System.Net;
using System.Net.Http;
using System.Drawing;
using System.IO;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main(string[] args)
        {
            var webProxy = new WebProxy
            {
                Address = new Uri("https://unblock.oxylabs.io:60000"),
                BypassProxyOnLocal = false,
                UseDefaultCredentials = false,

                Credentials = new NetworkCredential(
                userName: "YOUR_USERNAME",
                password: "YOUR_PASSWORD"
                )
            };

            var httpClientHandler = new HttpClientHandler
            {
                Proxy = webProxy,
            };

            // 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
            httpClientHandler.ClientCertificateOptions = ClientCertificateOption.Manual;
            httpClientHandler.ServerCertificateCustomValidationCallback =
                (httpRequestMessage, cert, cetChain, policyErrors) =>
                {
                    return true;
                };


            var client = new HttpClient(handler: httpClientHandler, disposeHandler: true);
            
            // 添加自定义头
            client.DefaultRequestHeaders.Add("X-Oxylabs-Render", "png");
            
            Uri baseUri = new Uri("https://youtube.com");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Get, "");

            var response = await client.SendAsync(requestMessage);
            byte[] bytes = await response.Content.ReadAsByteArrayAsync();

            using (Image image = Image.FromStream(new MemoryStream(bytes)))
            {
                image.Save("rendered_page.png");
            }
        }
    }
}

package org.example;

import okhttp3.Authenticator;
import okhttp3.Credentials;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import javax.net.ssl.*;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.util.concurrent.TimeUnit;
import java.io.File;
import org.apache.commons.io.FileUtils;

public class App implements Runnable
{
    private static final String AUTHORIZATION_HEADER = "Proxy-Authorization";
    public static final String USERNAME = "YOUR_USERNAME";
    public static final String PASSWORD = "YOUR_PASSWORD";

    public void run() {
        Authenticator authenticator = (route, response) -> {
            String credential = Credentials.basic(USERNAME, PASSWORD);

            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        OkHttpClient.Builder builder = new OkHttpClient.Builder()
                .readTimeout(180, TimeUnit.SECONDS)
                .writeTimeout(180, TimeUnit.SECONDS);

        // 我们建议接受我们的证书，而不是允许不安全的 (http) 流量
        this.disableSSLCertificateChecking(builder);

        Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("unblock.oxylabs.io", 60000));
        OkHttpClient client = builder
                .proxy(proxy)
                .proxyAuthenticator(authenticator)
                .build();

        var request = new Request.Builder()
                .url("https://youtube.com")
                .addHeader("X-Oxylabs-Render", "png")
                .get()
                .build();

        try (var response = client.newCall(request).execute()) {
            assert response.body() != null;
            okhttp3.ResponseBody body = response.body();
            if (body != null) {
                byte[] bytes = body.bytes();
                FileUtils.writeByteArrayToFile(new File("rendered_page.png"), bytes);
            }
        } catch (Exception exception) {
            exception.printStackTrace();
            System.exit(1);
        }

        System.exit(0);
    }

    private void disableSSLCertificateChecking(OkHttpClient.Builder builder) {
        TrustManager[] trustManagers = new TrustManager[]{
                new X509TrustManager() {
                    @Override
                    public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                        return new java.security.cert.X509Certificate[]{};
                    }

                    @Override
                    public void checkServerTrusted(java.security.cert.X509Certificate[] x509Certificates, String authType) {
                    }

                    @Override
                    public void checkClientTrusted(java.security.cert.X509Certificate[] x509Certificates, String authType) {
                    }
                }
        };

        try {
            HttpsURLConnection.setDefaultHostnameVerifier((s, sslSession) -> true);
            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, trustManagers, new java.security.SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());

            builder.sslSocketFactory(sslContext.getSocketFactory(), (X509TrustManager) trustManagers[0]);
        } catch (Exception exception) {
            exception.printStackTrace();
            System.exit(1);
        }

        builder.hostnameVerifier((hostname, session) -> true);
    }

    public static void main(String[] args) {
        new Thread(new App()).start();
    }
}

响应将包含可保存为 PNG 格式并按下面示例打开的图像原始字节：

在特定页面上强制渲染

为成功抓取，某些特定域的页面类型由于其动态内容需要渲染。我们的系统会自动对这些页面强制进行渲染，即使用户未明确设置。

请注意，渲染任务相比未渲染任务会消耗更多流量。

在抓取以下页面时，我们希望用户充分意识到这一点：

6KB

Force render domains.csv

打开

这种方法能提供尽可能好的抓取体验，确保从这些具有挑战性的页面中获取准确且可靠的数据。

如果您希望禁用渲染，请发送不带值的渲染头

X-oxylabs-render:

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最后更新于1年前

这有帮助吗？

早上好

代码示例

在特定页面上强制渲染