尝试在js中创建数组，然后发送到控制器

var myArray = [1, 2, 3];

var myArray = [1, 2, 3];

var xhr = new XMLHttpRequest();
xhr.open("POST", "/controller-url", true);
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4 && xhr.status === 200) {
    // 请求成功后的处理逻辑
    console.log(xhr.responseText);
  }
};
xhr.send(JSON.stringify(myArray));

// 在控制器中的路由处理函数
app.post('/controller-url', function(req, res) {
  var receivedArray = req.body; // 假设使用了body-parser中间件解析请求体
  console.log(receivedArray);
  
  // 进行相应的处理逻辑
  
  res.send('Array received and processed successfully');
});