我正在使用Ajax从API获取记录，当我单击搜索项时，页面将重定向到书和作者页面。我想存储该搜索的记录。但是它无法将数据存储在mongoose中。 数据未保存。
我的任务是列出最后15个搜索，哪个用户搜索。并显示在历史记录页面上。请帮助我
<!DOCTYPE html>
<html lang="en">
<head>
<title>Book Bank API</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script
src="http://code.jquery.com/jquery-3.3.1.min.js"
integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
crossorigin="anonymous"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/corejs-typeahead/1.2.1/typeahead.bundle.min.js"></script>
</head>
<style>
/* scaffolding */
/* ----------- */
.tt-menu,
.gist {
text-align: left;
}
/* base styles */
/* ----------- */
html {
font: normal normal normal 18px/1.2 "Helvetica Neue", Roboto, "Segoe UI", Calibri, sans-serif;
color: #292f33;
}
a {
color: #03739c;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
.table-of-contents li {
display: inline-block;
*display: inline;
zoom: 1;
}
.table-of-contents li a {
font-size: 16px;
color: #999;
}
p + p {
margin: 30px 0 0 0;
}
/* site theme */
/* ---------- */
.title {
margin: 20px 0 0 0;
font-size: 64px;
}
.example {
padding: 30px 0;
}
.example-name {
margin: 20px 0;
font-size: 32px;
}
.demo {
position: relative;
*z-index: 1;
margin: 50px 0;
}
.typeahead,
.tt-query,
.tt-hint {
width: 396px;
height: 30px;
padding: 8px 12px;
font-size: 24px;
line-height: 30px;
border: 2px solid #ccc;
-webkit-border-radius: 8px;
-moz-border-radius: 8px;
border-radius: 8px;
outline: none;
}
.typeahead {
background-color: #fff;
}
.typeahead:focus {
border: 2px solid #0097cf;
}
.tt-query {
-webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
-moz-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
}
.tt-hint {
color: #999
}
.tt-menu {
width: 600px;
margin: 12px 400px;
padding: 8px 0;
background-color: #fff;
border: 1px solid #ccc;
border: 1px solid rgba(0, 0, 0, 0.2);
-webkit-border-radius: 8px;
-moz-border-radius: 8px;
border-radius: 8px;
-webkit-box-shadow: 0 5px 10px rgba(0,0,0,.2);
-moz-box-shadow: 0 5px 10px rgba(0,0,0,.2);
box-shadow: 0 5px 10px rgba(0,0,0,.2);
}
.tt-suggestion {
padding: 3px 20px;
font-size: 18px;
line-height: 24px;
}
.tt-suggestion:hover {
cursor: pointer;
color: #fff;
background-color: #0097cf;
}
.tt-suggestion.tt-cursor {
color: #fff;
background-color: #0097cf;
}
.tt-suggestion p {
margin: 0;
}
.gist {
font-size: 14px;
}
/* example specific styles */
/* ----------------------- */
#custom-templates .empty-message {
padding: 5px 10px;
text-align: center;
}
#multiple-datasets .league-name {
margin: 0 20px 5px 20px;
padding: 3px 0;
border-bottom: 1px solid #ccc;
}
#scrollable-dropdown-menu .tt-menu {
max-height: 150px;
overflow-y: auto;
}
#rtl-support .tt-menu {
text-align: right;
}
#multiple-datasets .search {
margin: 0 20px 5px 20px;
padding: 3px 0;
border-bottom: 1px solid #ccc;
}
</style>
<style>
.topnav-right {
float: right;
}
body {
font-family: Arial;
}
* {
box-sizing: border-box;
}
form.example input[type=text] {
padding: 10px;
font-size: 17px;
border: 1px solid grey;
float: left;
height: 50px;
width: 1000px;
text-align: center;
background: #f1f1f1;
margin-left: 80px;
}
</style>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand m-auto" href="#">Book Bank</a>
</div>
<div class="topnav-right">
<ul class="nav navbar-nav -align-left">
<li class="active"><a href="#">Home</a></li>
<li><a href="/history">Last 15 Search</a></li>
<li><a href="/">Logout</a></li>
</ul>
</div>
</div>
</nav>
<div class="container">
<!--
<div class="panel panel-default">
<div class="panel-body">
<b> Authors selected: </b>
<ul id="authorlist"></ul>
</div>
</div>
<div class="panel panel-default">
<div class="panel-body">
<b> Books selected: </b>
<ul id="booklist"></ul>
</div>
-->
<br>
<br>
<div id="multiple-datasets">
<form class="example" action="#">
<input class="typeahead" type="text" placeholder="Enter The Book Name to Search" name="search">
</form>
</div>
<table class="table table-bordered">
<h1 align="center">List of Science Book Records</h1>
<thead>
<tr>
<th>Book Name</th>
<th>Author Name</th>
<th>Subject</th>
</tr>
</thead>
<tbody class="mypanel">
<script>
$.getJSON('https://openlibrary.org/subjects/science.json', function(data) {
var show_per_page = 2;
var page= data.works.length;
var number_page = Math.ceil(page/show_per_page);
console.log(data)
for (var i=1;i<data.works.length;i++)
{
var akey = `${data.works[i].authors[0].key}`
var bkey =`${data.works[i].key}`
var text = `<tr><td><a href="/book${bkey}">${data.works[i].title}</a></td>
<td><a href="/author${akey}">${data.works[i].authors[0].name}</a></td>
<td>${data.works[i].subject[i]}</td></tr>`
$(".mypanel").append(text);
}
});
</script>
</tbody>
</table>
</div>
</body>
<script>
var books = new Bloodhound({
datumTokenizer: Bloodhound.tokenizers.obj.whitespace,
queryTokenizer: Bloodhound.tokenizers.whitespace,
remote: {
url: 'http://openlibrary.org/search.json?title=%QUERY',
wildcard: '%QUERY',
filter: function (searchResults) {
return $.map(searchResults.docs, function (searchResults) {
// console.log(searchResults.author_name);
// console.log("key is "+searchResults.key)
if (JSON.parse(sessionStorage.getItem("selectedBooks") == undefined || JSON.parse(sessionStorage.getItem("selectedBooks").indexOf(searchResults.title)) == -1)){
return {
title: searchResults.title,
key: searchResults.key,
};
}
});
}
}
});
var authorsList = [];
var authors = new Bloodhound({
datumTokenizer: Bloodhound.tokenizers.obj.whitespace,
queryTokenizer: Bloodhound.tokenizers.whitespace,
remote: {
url: 'http://openlibrary.org/search.json?author=%QUERY',
wildcard: '%QUERY',
filter: function (searchResults) {
return $.map(searchResults.docs, function (searchResults) {
if (searchResults.author_name !== undefined){
var author = searchResults.author_name.toString();
}
if (authorsList.indexOf(author) == -1) {
authorsList.push(author);
return {
author_key: searchResults.author_key,
author: author,
};
}
});
},
}
});
$('#multiple-datasets .typeahead').typeahead({
highlight: true
},
{
display: 'title',
source: books,
templates: {
header: '<h3 class="search">Books List</h3>'
}
},
{
name: 'authors',
display: 'author',
source: authors,
templates: {
header: '<h3 class="search">Authors List</h3>'
}
});
$('#multiple-datasets').bind('typeahead:selected', function(obj, datum, name) {
console.log(datum);
if (name === 'authors'){
var request = $.ajax({
type: 'POST',
data: {author: datum.author}
});
`${data.works[i].authors[0].key}`
request.done(function (msg) {
window.location.href="/author/authors/" +datum.author_key[0];
});
request.fail(function (jqXHR,textStatus) {
alert("Request Failed"+textStatus);
});
}
else
{
var request = $.ajax({
type: 'POST',
url: `http://localhost:9090/history`,
data: {book: datum.title}
});
request.done(function (msg) {
window.location.href="/book" +datum.key;
});
request.fail(function (jqXHR,textStatus) {
alert("Request Failed"+textStatus);
});
}
});
</script>
</html>
路线页面
app.post('/history',(req,res)=>{
console.log(req.body);
res.sendStatus(201);
const newHistory = new History({
books_searched: req.body
});
newHistory.save().then(savedPost=>{
console.log("data saved");
});
});
错误
UnhandledPromiseRejectionWarning：ValidationError：历史记录验证 失败：books_searched：值“ {book：强制转换为字符串失败”： “ Aldous Huxley'}”位于路径“ books_searched” 在新的ValidationError（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ error \ validation.js：30：11） 在model.Document.invalidate（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ document.js：1898：32） 在模型上。$ set（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ document.js：878：10） 在model._handleIndex（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ document.js：688：14） 在模型上。$ set（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ document.js：645：22） 在model.Document（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ document.js：112：12） 在model.Model（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ model.js：69：12） 在新模型下（C：\ Users \ shankar \ first-app \ book api \ node_modules \ mongoose \ lib \ model.js：4344：13） 在app.post（C：\ Users \ shankar \ first-app \ book api \ app \ routes.js：73：33） 在Layer.handle [作为handle_request]（C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ layer.js：95：5） 在下一个（C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ route.js：137：13） 在Route.dispatch（C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ route.js：112：3） 在Layer.handle [作为handle_request]（C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ layer.js：95：5） 在C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ index.js：281：22 在Function.process_params（C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ index.js：335：12） 在下一个（C：\ Users \ shankar \ first-app \ book api \ node_modules \ express \ lib \ router \ index.js：275：10） （节点：2832）UnhandledPromiseRejectionWarning：未处理的承诺拒绝。该错误是由抛出异步内部引起的 没有捕获块或拒绝承诺 未使用.catch（）处理。 （拒绝ID：1）
答案 0 :(得分：0)
输入此路由代码，并确保您在架构中使用对象类型。
app.post('/history',(req,res)=>{
res.sendStatus(201);
const newHistory = new History({
searched: req.body
});
newHistory.save().then(savedPost=>{
console.log("data saved");
}).catch((error)=>{
console.log(error);
})
});