java chrome puppeteer 截图

安装node环境
node安装puppeteer插件

npm i --save puppeteer --ignore-scripts

3.截图需要js

//导入包
const puppeteer = require('puppeteer');
(async () => {const chromePath = "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"const address = "https://news.qq.com/"const path = "/Users/admin/Desktop/test.png"var time = 15000//创建新的浏览器const browser = await puppeteer.launch({ignoreHTTPSErrors: true,headless: false,executablePath: chromePath,args: ['--no-sandbox', '--disable-setuid-sandbox']});//打开新页面const page = await browser.newPage();// 访问await page.goto(address, {waitUntil: 'domcontentloaded'}).catch()await page.waitFor(time)//加载页面的js,cs5var style, textpage.evaluate(function () {var style = document.createElement('style'),text = document.createTextNode('body { background: #fff }')style.setAttribute('type', 'text/css')style.appendChild(text)document.head.insertBefore(style, document.head.firstChild)})let content = await page.content()console.log(content)await page.screenshot({path:path})await browser.close()
})()

4.滚动截屏js

//导入包
const puppeteer = require('puppeteer');
(async () => {//  chrome地址//const chromePath=process.argv[2]const chromePath = '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome'//传进的将要解析的url网址//const address=process.argv[3];const address = 'https://news.qq.com/'const path = '/Users/admin/Desktop/test.png'var time = 15000const system_warn = 1002 // 系统提示/告警//创建新的浏览器const browser = await puppeteer.launch({ignoreHTTPSErrors: true,headless: false,executablePath: chromePath,args: ['--no-sandbox', '--disable-setuid-sandbox']})//打开新页面const page = await browser.newPage()// 访问await page.goto(address, {waitUntil: 'domcontentloaded'}).catch()await page.setViewport({width: 1920,height: 1080,})await page.waitFor(time)let height_limit = falselet scroll_times = 0let mValues = {'scrollEnable': true, 'height_limit': height_limit, 'times': 2}let result_map = new Map()try {await page.waitFor(5000)while (mValues.scrollEnable) {mValues = await page.evaluate((max_height_px,page_screentshot_height_limit,height_limit,result_map,system_warn,address,scroll_times) => {let times = 1let scrollEnable = trueif (undefined !== document.body && null != document.body) {window.scrollBy(0, window.innerHeight)times = parseInt(document.body.clientHeight / 1080)// 超出图片的限制高度, 生成PDFif (document.body.clientHeight > page_screentshot_height_limit) {height_limit = true}// 超出网页的限制高度, 不再滚动if (document.body.clientHeight > max_height_px && scroll_times > 40) {result_map['resultCode'] = system_warnresult_map['warning'] = '网页加载高度过长, 易造成数据获取失败。'scrollEnable = false}} else {scrollEnable = false}times = times + 1return {'scrollEnable': scrollEnable,'height_limit': height_limit,'times': times,'title': document.title}}, 60000, 60000, height_limit, result_map, system_warn, address, scroll_times)// 等待随机时间let randomMillSecond = randomNum(600, 2000)await sleep(randomMillSecond)scroll_times++console.log(address + ' 需要滚动 : ' + mValues.times + '次 , 滚动第[' + scroll_times + ']次')if (scroll_times > mValues.times) {console.log(address + ' 结束')mValues.scrollEnable = false}}//console.log('Dimensions:', dimensions);//加载页面的js,cs5var style, textpage.evaluate(function () {var style = document.createElement('style'),text = document.createTextNode('body { background: #fff }')style.setAttribute('type', 'text/css')style.appendChild(text)document.head.insertBefore(style, document.head.firstChild)})let content = await page.content()//console.log(content)await page.screenshot({path: path, fullPage: true})} catch (e) {console.log(e)console.log('执行异常')} finally {await browser.close()}
})()// 随机数
function randomNum (minNum, maxNum) {switch (arguments.length) {case 1:return parseInt(Math.random() * minNum + 1, 10)case 2:return parseInt(Math.random() * (maxNum - minNum + 1) + minNum, 10)default:return 0}
}// 延时函数
function sleep (delay) {return new Promise((resolve, reject) => {setTimeout(() => {try {resolve(1)} catch (e) {reject(0)}}, delay)})
}

5.java执行cmd命令截图

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;import java.io.InputStream;public static void main(String[] args) {String url = "https://news.qq.com/";Document document = null;//chrome浏览器地址String chromePath = "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome";//nodejs地址  + 截图的js的地址（两个需要在同一个目录之下）String nodeJSPath = "/usr/local/opt/node@10/bin/node    /Users/admin/Desktop/printscrnnt.js";String BLANK = "    ";String exec =  nodeJSPath + BLANK + chromePath + BLANK + url;try {//执行脚本命令Process process = Runtime.getRuntime().exec(exec);System.err.println("ecec =======> " + exec);InputStream is = process.getInputStream();document = Jsoup.parse(is, "UTF-8", url);try {process.waitFor();} catch (InterruptedException e) {e.printStackTrace();}process.destroy();process = null;} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}document.body();}

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