近期在做基于WebGL的网页三维展示截图，PhantomJS支持浏览器截图，但由于PhantomJS是一个阉割版的webkit，不支持flash、webGL、video/audio等功能，只好采用Selenium的方案，实现如下：

1.配置ChromeDriver

下载chromeDriver(要与chrome版本匹配)：

http://chromedriver.storage.googleapis.com/index.html

配置chromeDriver

将chromeDriver.exe 放在chrome浏览器根目录下

2.功能实现

添加依赖

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-java -->
    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-java</artifactId>
        <version>3.141.59</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.6</version>
    </dependency>
    
</dependencies>

实现截图工具类

package org.example.phantomTest;

import org.apache.commons.io.FileUtils;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;

import java.io.File;
import java.io.IOException;
import java.util.Date;

public class SeleniumTools {
    /**
     * 浏览器截图
     *
     * @param url          页面地址
     * @param storage_path 本地存储路径
     * @param file_name    存储文件名
     * @param millis       截屏延时 毫秒
     * @throws IOException 执行异常
     */
    public static void screenShot(String url, String storage_path, String file_name, long millis) throws IOException {
        System.setProperty("webdriver.chrome.driver", "C:\\Program Files (x86)\\Google\\Chrome\\Application\\chromedriver.exe");

        //初始化 ChromeDriver
        ChromeOptions chromeOptions = new ChromeOptions();
        chromeOptions.addArguments( "start-fullscreen", "allow-running-insecure-content");
        //chromeOptions.addArguments( "--headless", "allow-running-insecure-content");
        WebDriver driver = new ChromeDriver(chromeOptions);

        //访问 URL
        driver.get(url);

        //延时，等待WebGL渲染完成
        try {
            Thread.sleep(millis);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        //截图并进行存储
        File src = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
        File destFile = new File(storage_path + File.separator + file_name);
        FileUtils.copyFile(src, destFile);

        //关闭 ChromeDriver
        driver.close();
        driver.quit();
    }

    public static void main(String[] args) {
        String url = "http://cesium.marsgis.cn/cesium-example/editor.html?data=qx-simiao#35_3dtiles";
        String storage_path = "D:\\selenium";
        long timeStamp = new Date().getTime();
        try {
            screenShot(url, storage_path, timeStamp + ".png", 20000);
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("执行完成");
    }
    
}

注意：多任务处理时，需要考虑多线程问题

Demo源码：

链接：https://pan.baidu.com/s/1p-CqVlOkxY3zIt1ByuwwWw
提取码：oyji

附录：

ChromeDriver配置项

参考：https://sites.google.com/a/chromium.org/chromedriver/capabilities