1. Configuration of mac node.js environment
Step 1: Open the terminal and enter the following command to install Homebrew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Homebrew official website http://brew.sh/index_zh-cn.html
Step 2: Install node, enter the following command in the terminal
brew install node
Step 3: Check whether the node installation is successful
2. New test program
Step 1: Create a new file test.js
var http = require('http');
var data = {key : 'value', hello: 'world'};
var srv = http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'application/json'});
res.end(JSON.stringify(data));
});
srv.listen(8080, function() {
console.log('listening on localhost:8080');
});
Step 2: Use the terminal to find the file directory where it is located and run
node Desktop/test.js listen on localhost:8080
Step 3: Visit through the browser and return the data in json format
Step 4: The front end can analyze data through this interface.
Thank you very much: Li Yugang's blog (installation and testing of node.js environment on mac)