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Does mysql support whether the query condition is an object?
like this SELECT * FROM material WHERE {key:value} limit 1 ...
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Express fetches the value from the post request
code, which returns the body body
body
body
console.log(req.body) of the post request
...
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Express calls next ();
function a(){
var a1 = Hello World! ;
next();
}
app.get( b , a, function (req, res) {
res.send(a1);
});
how should I get the A1 variable in the previous method;
...
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Express project, how to make each page need to call the api extracted to form a common module to reference?
is like this, every page needs to call some api,. If you write request, on each page, it will feel cumbersome. Is there a good way to write it as a common module, and then introduce a module? ...
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Ask your predecessors, vue-cli can cross-domain access to Douban data, why not cross-domain access to the local database data?
try to use vue-cli to get the data of the local server database, but return the following error prompt, but you can get the data of Douban in the same way. It can t be solved all night. I hope the seniors can take the time to give us some advice! Thank...
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What's the difference between WeChat Mini Programs's local background and web's local background?
the local backend I use on web is mongodb,express, plus proxy to solve cross-domain problems. can WeChat Mini Programs s local or future online backend use mongodb? what does the local backend need to change? I use Mini Program to send a request to my ...
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How does express determine that the device type returns to the home page under different paths when the user accesses the primary domain name?
how does express determine the device type to return to the home page under different paths when the user accesses the primary domain name? if you visit mobile phone and PC, visit www. respectively. The domain name .com returns a different index home pa...
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Nodejs build linux server how to start the project?
create an express project locally, access the remote mysql to add, delete, modify and query, and provide an API. There is no problem with local access to localhost:8080 getUsers.
install nodejs, and install express, on the CVM (Huawei Cloud I use) and...
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How does Express, Passportjs, allow users to log in in only one place?
how does Express, Passportjs, allow users to log in in only one place?
passport
passportsessionsession
mongoosemongodb
sessionpassportsession
passport.serializeUser((user, done) => {
const sessionUser = { _id: user._id, username: ...
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Wechat developed how to forward the data to the front-end vue after receiving the data from the express server.
Wechat official account is being developed. After the user clicks the menu, Wechat server will send a unionid to my server (written in express), and then my server will query the database and return the data to the front-end vue to meet the needs of disp...
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After a vue axios request, loading a picture using request will occur, the page will be refreshed, and an error will be reported.
response.data is a picture url
...
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Http-proxy-middleware reverse proxy problem
the address where you want to reverse proxy is http: huaban.com ?page=2 s reverse proxy setting in nginx is as follows
http: localhost:8099 api?page=2
this is the reverse proxy setting in node
access http: localhost:3300 api?page=2 cannot a...
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With regard to the concurrency of express, nodejs is single-threaded, with 1000 requests. Does the next request have to wait for the previous processing before it can be executed?
this is the server code
app.get( test , (req, res, next) => {
res.json( test )
})
frontend code, 1000 requests
<Menu.Item key="abc">
<a onClick={() => {
for (let i = 0; i < 1000; iPP) {
fet...
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How to use functions with artTemplate and express
node environment artTemplate with express how to use the function want to use the filter of art-template examples given on the official website template.defaults.imports.dateFormat = function (date, format) { [code..] }; template.defaults.import...
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Can express router set a parameter globally?
for example, I already have some routes
router.get( user :id? , ...)
router.get( detail :id , ...)
now a demand has been suddenly added. needs to be able to implement both Chinese and English.
will pass parameters over, how can I uniformly add ...
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How to manipulate static file resources in express?
app.use (express.static (path.join (_ _ dirname, public ); ), how can I get the address of the static resource file root directory after setting the static address? There is no need to consider the specific file address, for example, in the public ne...
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How to configure the websocket? of the node server of the apache reverse proxy
the server is httpd, and then configure a second-level domain name, reverse proxy a node server, the node server is based on express, installed express-ws, but has been reporting errors router.ws () not function
then I would like to ask if the reverse...
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Express routing problem
I am a novice. I have just come into contact with the node.js and express frameworks. I have configured routing according to the online tutorial, but there are some problems, as follows:
first of all, the file structure is as follows:
index.js:...
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How to make express.static case-sensitive?
how can a static resource service thus insensitive to the case of the path be case-sensitive?
...
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Questions about the use of global variables in node?
such a scenario:
let g=
router.get( ,function(req,res,next){
*g*
g= date
}
router.get( next ,function(req,res,next){
*g*
}
every time the user enters assigns the global gjinghort next route, it needs to operate according to g. ...
