NodeJS链接mysql数据库

1,下载

cnpm install mysql

2，引入并配置修改数据库用户名密码及数据库名

var mysql      = require('mysql');
var connection = mysql.createConnection({
  host     : 'localhost',
  user     : 'root',
  password : '123456',
  database : 'test'
});
 
connection.connect();
 
connection.query('SELECT 1 + 1 AS solution', function (error, results, fields) {
  if (error) throw error;
  console.log('The solution is: ', results[0].solution);
});

3，若是本地数据库链接失败，报错10061，说明本地MySQL服务未启动，在个人电脑右键服务下启动mysql

4.抛出源码，蹬蹬蹬~~~~

var Mysqlconnect = require('mysql');
var sql = Mysqlconnect.createConnection({
    host:'localhost',
    user:'root',
    password:'xxxx',
    database:'trip'
  });
  sql.connect();
/* GET users listing. */
router.get('/', function(req, res, next) {
        sql.query("select * from tour",[],function(err,data){
            console.log(data);
            res.send(data);
        });
    
});
// 登陆
router.post('/login', function(req, res, next) {
      console.log(req.body.username);
        sql.query("select * from user_app where username = ? and password = ?",[req.body.username,req.body.password],function(err,data){
            console.log(data);
            if(err){
                console.log(err);
                return;
            }
            res.send(data);
        });
    
});
// 注册
router.post('/register', function(req, res, next) {
      console.log(req.body.username);
        sql.query("insert into user_app (username,password,phone) value (?,?,?)",[req.body.username,req.body.password,req.body.phone],function(err,data){
            console.log(data);
            if(err){
                console.log(err);
                return;
            }
            res.json({res_code:0});
        });
    
});