1. Download Phantomjshttp://phantomjs.org/2. ImplementationNew Phantomjs.bat, remember to change the folder pathThe contents are:D:\java\phantomjs\phantomjs.exe D:\java\phantomjs\code\server.js 80803, the new Server.js file, put in the Code folder, note that the Code folder is also new, the following is the Server.js contentvar page = require (' webpage '). Create (); var server = require (' webserver '). C
OverviewThis blog is in the previous blog Phantomjs+nodejs+mysql data fetching (1. Fetching data)
http://blog.csdn.net/jokerkon/article/details/50868880
After the second part, please read this blog before reading the previous article, because there are some of the code will be used in the previous part of the crawl results.Okay, now start the formal crawl of the picture.First, let's take a look at the code:var page =require (' webpage ')
React introduction 1. OriginReact is a library of JS components that Facebook has developed to build the front-end interface, and because of the powerful background behind it, this library has no problem with technology development.Advantages of 2.ReactSolve the problem that data change becomes difficult to operate in large-scale project development;Component development, making development faster;One-way data flow to help find problems;Virtual DOM, w
React-jsx, html, css basic knowledge point, react-jsxcss
Watch video address: https://www.imooc.com/video/9819Environment setup:
Method: Usecreacte-react-appQuick Buildingcreate-react-appIt is from Facebook. With this command, you can quickly build a React development envir
Create the specified react-native version
Just began to learn react Native, a lot of do not understand, build the environment when encountered quite a lot of problems, has been tossing.
I built the environment according to the react native document, the installation REACT-NATIVE-CLI uses the following command.
NPM in
Students who have done selenium automation projects should have encountered the problem of having too many test cases and running too slow to make team members complain.So there's a way to run selenium test cases selenium grid and multithreading. The advantages and disadvantages of these methods are not listed here. However, in general, if the browser is running fast enough, the use case execution speed of multi-thread concurrency should be able to meet the actual project requirements.Reference
Horseman is a node. js module that makes it easier to use PHANTOMJS for functional testing, page automata, network monitoring, screen capture, and more. It provides direct, chained API, easy-to-understand control flow, and avoids callback traps.Official website GitHub Related articles that may be of interest to you
The JQuery effect "attached source" is very useful in website development
Share 35 amazing CSS3 animation effects Demo
Stunning
Get a snapshot by using phantomJS
Here is the source code about obtain a snapshot of a website by using phantomJS.
var webPage = require("webpage"), address, filename, height, width; // generate webPage objectvar page = webPage.create(); // generate one pagevar system = require("system"); // generate system object to obtain parametersvar args = system.args; // get the number of input parametersc
This bug has been fixed in the release of Selenium 2.38.4 in these two days and will still be encountered if the selenium of 2.38.1, 2.38.2, etc. are used. The bug, which tortured me for two days before determining the cause, was recorded. Description: In a Python 2.7 environment, using selenium 2.38.2 and Phantomjs 1.9.2 to write a simple script that opens a Web page, you will encounter a bug and you won't be able to open the page at all. The error
Don't say much nonsense, just say the point:At the beginning of the time, agent IP, head information pool, have been done, using SELENIUM+PHANTOMJS to get JS dynamic loading of the source codeAt first very good, can come out of the dynamic load after the source code, but after several runs, the computer a little lag (estimated that the storage is too small), the source will not get, the data returnedIt's all empty data, so it's all wrong.Make sure to
headers = { 'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'Accept-language':'zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3', 'user-agent':'mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) applewebkit/603.2.4 (khtml, like Gecko) version/10.1.1 safari/603.2.4', 'Connection':'keep-alive'}Cap= DesiredCapabilities.PHANTOMJS.copy ()//use copy () to prevent modification of the original code definition Dict forKey, ValueinchHeaders.items (): cap['phantomjs.page.customHeade
Today, I fork a small demo (https://github.com/cowboy/jquery-tiny-pubsub) of a grunt project written by someone on GitHub, mainly to learn about the use of grunt, According to the official document (http://www.gruntjs.org/docs/getting-started.html), step by step to execute, first of all, the project needs to use a few grunt plug-ins, the other installation is not a problem, However, when installing to grunt-contrib-qunit this plugin, the following error occurred,This means that the request
1. Download Phantomjshttp://phantomjs.org/2. OperationNew Phantomjs.bat, remember to change the directory pathThe contents are:D:\java\phantomjs\phantomjs.exe D:\java\phantomjs\code\server.js 80803, the new Server.js file, placed in the code directory, note that the code directory is also new, the following is the Server.js contentif (s=== "Success") { Page.evaluate (function () { nbsp; $ (". Canvas_box").
Functions in fact very simple, through the Phantomjs.exe collection URL loaded resources, through the way of the child process, start Nodejs load all the resources, for CSS resources, matching CSS content, download the URL resources inside
Of course, the function is very simple, in response to design and asynchronous loading, there are still many resources have not been able to download, the need to deal with the actual situation under
First of all, of course, download Nodejs and
(in the middle because of coping with various examinations, dealing with other things, a good time has not been updated, now finally have time, continue!) )This article is for react initial experience, so do not consider how the file organization, as far as possible in the simplest way to let everyone understand the principle of react.Before you create a component (component), you need to know some basics first. Students with ES6, JSX grammar and othe
This article is my published book "React Native and actual combat" serial sharing, the book by the mechanical Industry publishing house, the book detailed React Native framework underlying principles, React Native component layout, components and API Introduction and code combat, and React Nati ve and IOS, Android plat
Abstract components in React and abstract react Components
The abstraction between components to be learned today is actually not clear after I read it several times. This time I decided to find out. In component building, there is usually a type of function that needs to be shared by different components. This involves abstract concepts. In React, we mainly unde
The React team has a official Command line Interface (CLI) for building React projects called "Create React App"; In this lesson, we show how to use this tool to quickly set up new projects using the create-react-app {project-name} command. We then use the NPM scripts that is provided: to npm start develop, to ship npm
Previous we have a general understanding of react, before introducing the technical details, let us first look at the main tools for react development and module management Webpack. Called react development artifact a bit of a title party, but Webpack is really the most powerful front-end module management and packaging tools I have ever seen. Although Webpack is
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