如何在angularjs中将表单数据保存到数据库中

<div ng-app="myApp" ng-controller="myCtrl">
  <form ng-submit="saveData()">
    <input type="text" ng-model="name" placeholder="Name" required>
    <input type="email" ng-model="email" placeholder="Email" required>
    <button type="submit">Save</button>
  </form>
</div>

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope, $http) {
  $scope.saveData = function() {
    var data = {
      name: $scope.name,
      email: $scope.email
    };
    $http.post('/saveData', data)
      .then(function(response) {
        // 处理保存成功后的逻辑
      })
      .catch(function(error) {
        // 处理保存失败后的逻辑
      });
  };
});

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

app.post('/saveData', function(req, res) {
  var name = req.body.name;
  var email = req.body.email;
  
  // 将数据存储到数据库中的逻辑
  // ...
  
  res.send('Data saved successfully');
});

app.listen(3000, function() {
  console.log('Server is running on port 3000');
});