Kyle Chen's Blog

Action speaks louder than Words

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AJAX に基づくログインページ02 ーHTMLを追加とメッセージプアップ

发表于 分类于 
HTML　ペイジー（Boostrapに基づく）

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
	<link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
	<script src="https://cdn.staticfile.net/jquery/2.1.1/jquery.min.js"></script>
	<script src="https://cdn.staticfile.net/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
    <title>Login Test</title>
</head>
<body>
    <div class="container">
        <h3>Welcome</h3>
        <div class="alert" role="alert"></div>
        <form class="form-horizontal" role="form">
            <div class="form-group">
              <label for="user" class="col-sm-2 control-label">User</label>
              <div class="col-sm-10">
                <input type="text" class="user form-control" id = "user" >
              </div>
            </div>
            <div class="form-group">
              <label for="pwd" class="col-sm-2 control-label">Password</label>
              <div class="col-sm-10">
                <input type="text" class="pwd form-control" id="pwd">
              </div>
            </div>
            <div class="form-group">
              <div class="col-sm-offset-2 col-sm-10">
                <button class="btn btn-default login-btn">Login</button>
              </div>
            </div>
          </form>        
    </div>

    <p class="my_p_1"></p>
    <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
    <script src="./js/login.js"></script>
</body>
</html>

Javascript(AJAXを使って)

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const loginBtn = document.querySelector('.login-btn')
const myAlert = document.querySelector('.alert')
function alert (msg,success){
    myAlert.classList.remove('d-none');
    myAlert.innerText = msg
    myAlert.classList.add('show')
    myAlert.classList.add(success? 'alert-success':'alert-danger')

    setTimeout(()=> {
        myAlert.classList.add('d-none');
        myAlert.innerText = ''
        myAlert.classList.remove('show')
        myAlert.classList.remove(success? 'alert-success':'alert-danger')    
    },1000)
    
}

loginBtn.addEventListener('click',function(){
    event.preventDefault();
    console.log("clicked")
    const username = document.querySelector('.user').value  
    const password = document.querySelector('.pwd').value  
    console.log(username)
    console.log(password)
    const p = document.querySelector('.my_p_1')  
    axios({
        url: 'http://hmajax.itheima.net/api/login',
        method:'POST',
        data:{
            username,
            password
        }
    }).then(result => {
        console.log(result.data.message)
        alert('Login Success!',1)
    }).catch(error=>{
        console.log(error.response.data.message)
        alert('Login Failed!',0)
    }) 
      
})