Javascript 向Express发送AJAX POST请求

我有两个问题。首先，我不知道在使用AJAX发送POST请求时我做错了什么。我正在返回结果，但我发送的userSrc参数未定义

如何发送参数，以便Express可以使用req.query读取参数，并将其用作搜索参数

代码如下：

Jquery：

$(function() {
    
    $("#userSrc").keyup( function () {
        let dInput = $("#userSrc").val();
        console.log(dInput);
      $.ajax({

        type: 'POST',
        url: '/quicksearch',
        data : {userSrc :dInput},
        
        success: function(result) {
          let html = '';
          console.log(result);
          result.each(element =>{
            console.log(element);
            html += "<h2>" + element.Title +"</h2>";
            $("#result").html(html);
          });
          
          
        }
      });
    });
  });

我遇到的第二个问题是，自从我尝试使用Object.keys和ForEach以来，如何实现我收到的结果。我不知道怎样才能得到结果

{result: Array(7)}
    result: Array(7)
    0: {Title: "Undefined", Year: "2006", imdbID: "tt1436480", Type: "movie", Poster: "https://m.media-amazon.com/images/M/MV5BMTgzNzkxMzk5Nl5BMl5BanBnXkFtZTgwMTQ2MzA2MDE@._V1_SX300.jpg"}
    1: {Title: "The Undefined", Year: "2013", imdbID: "tt3271334", Type: "movie", Poster: "N/A"}
    2: {Title: "Viet Costas - Citizenship: Undefined", Year: "2014", imdbID: "tt3838986", Type: "movie", Poster: "N/A"}
    3: {Title: "A Love Undefined", Year: "2015", imdbID: "tt4955578", Type: "movie", Poster: "N/A"}
    4: {Title: "Artist Undefined", Year: "2015", imdbID: "tt5190590", Type: "movie", Poster: "N/A"}
    5: {Title: "Undefined", Year: "2014", imdbID: "tt5581814", Type: "movie", Poster: "N/A"}
    6: {Title: "Undefined: A Muslim-American Musical", Year: "2017", imdbID: "tt7178924", Type: "movie", Poster: "https://m.media-amazon.com/images/M/MV5BODMwYTE1ZG…jk0ZmZhXkEyXkFqcGdeQXVyNzI4NTUyNjE@._V1_SX300.jpg"}
    length: 7
    __proto__: Array(0)
    __proto__: Object

---

提前谢谢

express处理程序正在URL中获取。这些是URL中

？

后面的字符，例如，

/quicksearch？search=text

则

req.query

将是

{search:“text”}

你想看报纸。这可以通过

req.body

完成。确保在express应用程序中添加中间件。包括中间件：

constbodyparser=require（'body-parser'）；
const urlencodedParser=bodyParser.urlencoded（{extended:false}）；
应用程序使用（urlencodedParser）；

现在，在路由处理程序中，您可以访问

req.body

您的

forEach

很好，但似乎使用了错误的变量。在JavaScript中，

结果

包含整个响应。您的数组位于

result.result

中。为您的JavaScript重写：

$（函数（）{
$（“#userSrc”）.keyup（函数（）{
设dInput=$（“#userSrc”）.val（）；
控制台日志（dInput）；
$.ajax({
键入：“POST”，
url:“/quicksearch”，
数据：{
userSrc:dInput
},
成功：功能（反应）{//反应是整个身体
让html=''；
console.log（response.result）；
response.result.each（元素=>{
控制台日志（元素）；
html+=“”+元素。标题+“”；
$（“#结果”）.html（html）；
});
}
});
});
});

{result: Array(7)}
    result: Array(7)
    0: {Title: "Undefined", Year: "2006", imdbID: "tt1436480", Type: "movie", Poster: "https://m.media-amazon.com/images/M/MV5BMTgzNzkxMzk5Nl5BMl5BanBnXkFtZTgwMTQ2MzA2MDE@._V1_SX300.jpg"}
    1: {Title: "The Undefined", Year: "2013", imdbID: "tt3271334", Type: "movie", Poster: "N/A"}
    2: {Title: "Viet Costas - Citizenship: Undefined", Year: "2014", imdbID: "tt3838986", Type: "movie", Poster: "N/A"}
    3: {Title: "A Love Undefined", Year: "2015", imdbID: "tt4955578", Type: "movie", Poster: "N/A"}
    4: {Title: "Artist Undefined", Year: "2015", imdbID: "tt5190590", Type: "movie", Poster: "N/A"}
    5: {Title: "Undefined", Year: "2014", imdbID: "tt5581814", Type: "movie", Poster: "N/A"}
    6: {Title: "Undefined: A Muslim-American Musical", Year: "2017", imdbID: "tt7178924", Type: "movie", Poster: "https://m.media-amazon.com/images/M/MV5BODMwYTE1ZG…jk0ZmZhXkEyXkFqcGdeQXVyNzI4NTUyNjE@._V1_SX300.jpg"}
    length: 7
    __proto__: Array(0)
    __proto__: Object