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Downloading a file from spring controllers
...u should have it stored previously (e.g. in the DB).
Cases it can be slow include: if the file is large, specially if the file is in a remote system or something more elaborated like that - a database, maybe.
InputStreamResource
If your resource is not a file, e.g. you pick the data up from t...
Create a Date with a set timezone without using a string representation
...ing to the actual offset in your locale at the time you call the function, including taking DST into account, so I don't understand why you'd need to subtract it.
– T.W.R. Cole
Aug 4 '14 at 17:26
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Node.js / Express.js - How does app.router work?
...article by @kelyvinn from 2016, with the intent to demonstrate modularity, includes this code:
// controllers/apis/dogs/index.js
const
express = require('express'),
dogService = require('../../../services/dogs');
let router = express.Router();
router.get('/', dogService.getDogs);
route...
explicit casting from super class to subclass
...casting is not a good idea. You should avoid it. If you use it, you better include a check:
if (animal instanceof Dog) {
Dog dog = (Dog) animal;
}
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Type List vs type ArrayList in Java [duplicate]
...ArrayList is not the only list class that implements RandomAccess. Others include CopyOnWriteList, Stack and Vector.
I've seen people make the same argument about Serializable (because List doesn't implement it) ... but the approach above solves this problem too. (To the extent that it is solvabl...
Where and why do I have to put the “template” and “typename” keywords?
... these are names, and by conventional use in the Standard, a name can also include qualifiers that say what namespace or class a name should be looked up in.
A value dependent expression 1 + N is not a name, but N is. The subset of all dependent constructs that are names is called dependent name. F...
Python Requests throwing SSLError
...andle HTTPS requests "like a web browser". If the full SSL chain of trust (including intermediate certificates) is not declared on a server and requires an extra certificate download, you will receive the above SSL verification error. Web browsers will do the extra download and not flag any certif...
What is the use of the @ symbol in PHP?
...already some answered before: The @ operator suppresses all errors in PHP, including notices, warnings and even critical errors.
BUT: Please, really do not use the @ operator at all.
Why?
Well, because when you use the @ operator for error supression, you have no clue at all where to start when a...
What is the significance of ProjectTypeGuids tag in the visual studio project file
...
It is sad that nowhere (including the pages shared by you) explains clearly why the projecttypeguids are needed. Someone from MS explained on the page you shared that the projecttypeguids are only for project aggregation. What does that mean? Who k...
How to copy a row and insert in same table with a autoincrement field in MySQL?
...e columns except id. If you want to explicitly insert with an id of 2 then include that in your INSERT column list and your SELECT:
insert into your_table (id, c1, c2, ...)
select 2, c1, c2, ...
from your_table
where id = 1
You'll have to take care of a possible duplicate id of 2 in the second ca...