javascript - 如何将 Express js 导入到 React js 中？

Question

是否可以将 Express js 导入到 React js 中？我使用 Express js 与 MySql 进行数据库连接，从表中检索行。我需要在 react 应用程序中显示结果。如何才能实现这一目标？

var express = require('express');
var app = express();


var PORT = 3000;
app.listen(PORT, function(){
  console.log('http://localhost:'+ PORT);
});

var mysql      = require('mysql');
var connection = mysql.createConnection({
   host     : 'localhost',
   user     : 'root',
   password : '',
   database : 'example'
 });

 connection.query('SELECT * from customers', function(err, rows, fields) {
   if (!err)

     console.log('The solution is: ', rows);
   else
     console.log('Error while performing Query.');
 });

 connection.end();

Answer 1

Node 中类似的东西

app.get('/customers', function (req, res) {
 connection.query('SELECT * from customers', function(err, rows, fields) {
  if (!err)
    //process your db result here and then response
   res.json(result);
    connection.end();
 else
   res.status(500).json(err);
   connection.end();
 });


})

在 React 中你可以使用 fetch 模块

 fetch(`http://<host>:<port>/customers`) 
        .then(result=> {
            //here inside result you have the response from your express app
        });