我无法使用HTML和JavaScript将数据存储到mysql数据库

Question

I'm writing a program in Node.js to get the data and store it in database. I'm passing the data from HTML page to JavaScript for validation and to store the data in MySQL database, if the validations are true, but after validation, it's not storing the data in MySQL.

Can you help me identifying the problem?

Code:

var mysql = require('mysql');

function validateform(){

    var fname = document.myform.fname.value;
    var lname = document.myform.lname.value;
    var email_id = document.myform.email.value;

    if (fname==null || fname==""){
        alert("First Name can't be blank");
            return false;
    }
    else if(lname==null || lname==""){
        alert("Last Name  can't be blank");
            return false;
    }
    else if(email_id.length<6){
        alert("Email must be at least 6 characters long.");
            return false;
    }
    else{

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

        connection.connect(function(err) {
        if(err){
            console.log('Error');
        }
        else{
            console.log('Connected');
            }
        });

        var exampleData = {
            firstName: fname,
            lastName: lname,
            email: email_id
        };


        var query = connection.query('insert into example set ?', exampleData, function (err, result) {
            console.log(query.sql);
            if (err) {
                console.error(err);
                return;
            }
            console.log(result);
        });
    }
}

Answer 1

You have an error in your query. Use values instead of set