不要在express和MongoDB中将req.query.name获取到collection.find [英] Don't GET req.query.name to collection.find in express and MongoDB
问题描述
我使用mongodb数据库，在该数据库中有其内部日志数据.使用Express，Node和Monk(遵循本指南)我必须尝试从搜索文本框中获取数据，停止了如何请求此数据的操作.
I use a mongodb database where I have its internal log data. With Express, Node and Monk (following this guide) I have to try to get data from a search text box, and I stopped on how to request this data.
在userlist.ejs页面中，我实现了一个发送GET请求的表单:
from the userlist.ejs page I have implemented a form where I send a GET request:
http://localhost:3000/userlist?name=5044
那我去哪里找名字
search = req.query.name
，然后将其插入 collection.find({search} .....
下面是index.js:
below is the index.js:
/* GET Userlist page. */
router.get('/userlist', function(req, res) {
search = req.query.name;
var db = req.db;
var collection = db.get('startup_log');
collection.find({search},{},function(e,docs){
res.render('userlist', {
"userlist" : docs
});
});
});
这是我发送请求的userlist.ejs页面.从index.ejs处理完以后，稍后它应该在for循环中显示它，
this is the userlist.ejs page where I send the request. which later should display it through the for loop after processing it from index.ejs,
<!DOCTYPE html>
<html>
<head>
<title>User List</title>
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<h1>User List</h1>
<input type="text" id="titles" />
<form action="/userlist" method="GET" encType="multipart/form-data">
<label htmlFor="newNote">New Note:</label>
<input type="text" name="name" className="form-control" rows="5"
id="name" placeholder="5044"></input>
<button id="done" type="submit" className="btn btn-primary pull-
right">Done</button>
<button id="cancel" className="btn btn-warning pull-
right">Cancel</button>
</form>
<ul>
<% for (var i = 0; i < userlist.length; i++) {%>
<li><%= userlist[i].hostname %></li>
<li></li>
<%}%>
</ul>
</body>
</html>
我不知道如何传递给集合.找到我在文本框中输入的查询！由于无法找到有关我的案件的具体信息，我们将不胜感激.预先感谢！
i can't figure out how to pass to collection.find the query i enter in the text box! any help would be appreciated as I cannot find specific information about my case. Thanks in advance!
更新
我可以说我已经尝试了所有方法，我将放弃！我也尝试过使用if if else，我尝试过更改字段，但是什么也没做，这并没有该死的
I can say that I have tried them all, I am about to give up! I also tried with an if else, I tried to change the field, but nothing, it does not take the damn
let query = req.query.name;
来自:
http://localhost:3000/search?name=5044
有趣的是，它以这种方式可以很好地工作:
the funny thing is that it works perfectly well in this way:
router.get('/search', async (req, res)=> {
if (!req.query.name)
return res.render("search", {
title: "NodeMongo Search",
userlist:[],
});
else {
const url = 'localhost:27017/local'; // Connection URL
const db = require('monk')(url);
const collection = db.get('startup_log')
try{
let query = 5044; //assigning the pid directly to the variable query
const userlist = await collection.find({pid:query});
res.render("search",{userlist});
}catch(e){
console.log(e);
}}
});
因此将5044分配给查询变量可以很好地运行，但是:
so assigning 5044 to the query variable run perfectly, but:
router.get('/search', async (req, res)=> {
if (!req.query.name)
return res.render("search", {
title: "NodeMongo Search",
userlist:[],
});
else {
const url = 'localhost:27017/local'; // Connection URL
const db = require('monk')(url);
const collection = db.get('startup_log')
try{
let query = req.query.name;
const userlist = await collection.find({pid:query});
res.render("search",{userlist});
}catch(e){
console.log(e);
}}
});
分配查询 req.query.name 否
推荐答案
对于那些对解决方案感兴趣的人来说， req.query 仅传递字符串，所以我以这种方式解决了这个问题；
For those interested in the solution, it is that req.query only passes strings, so I solved it in this way;
var query = (+req.query.name);
其他想法将被很好地接受！
Other ideas would be well accepted !
这篇关于不要在express和MongoDB中将req.query.name获取到collection.find的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
