springboot - Why is the spring-data-redis library so troublesome to use? You have to write a serialization class once for each class. Did I use it wrong??

Declare the serialization class {code...} that handles a certain type (BaseCurrentUser) and use {code...} in the service class. Then every time I add a type of storage, I have to add a set of @Bean??? Yes Is this so? Or I don’t know how to use it? Or I don’t use it this way, just use its StringRedis...

伊谢尔伦 2017-06-28 09:27:25 0  1  1218

About chain calls in PHP

I encountered a problem when chaining calls with PHP: There is a class "Site" below: {code...} There is also a class "Api" located in "class.Api.php": {code...} Use the following code to instantiate: {code...} Then call the following code: {code...} Will PHP repeat requ...

天蓬老师 2017-06-19 09:07:08 0  2  889

How to disable PHP reporting SQL errors?

I have my own PHP data class that logs MySQL errors to a txt file using mysqli_error($this->conn). Everything was working fine until I set PHP error handling to E_ALL. Now PHP intercepts the error and it doesn't have a chance to be handled by my MySQL error handler. This wouldn't be a problem exc...

P粉550257856 2023-09-05 17:14:24 0  1  698

LARAVEL: all elements in foreach have id 1, which makes deleting them impossible

My situation is very difficult. I'm building a birth list clone using scraper, but I'm having a hard time coding it because I'm inexperienced. I successfully created an admin page with multiple forms for inserting sites, categories and link forms where you can specify on which link should be crawled...

P粉064448449 2024-01-28 23:17:43 0  1  581

How to verify the permissions of the upload module in nginx?

I need to work on a project that involves uploading 100MB files. It would be troublesome to upload and process it directly with PHP, often times out, and takes up a lot of resources. So I searched and decided to use nginx's upload module to handle it. Although it can be uploaded, how to verify the p...

世界只因有你 2017-05-16 17:28:26 0  1  831

Reference: What is variable scope, which variables can be accessed from where, and what is an "undefined variable" error?

NOTE: This is a reference question about PHP variable scoping. Please close any other questions matching this pattern as duplicates. In PHP, what is variable scope? Can variables in one .php file be accessed in another file? Why do I sometimes get "undefined variable" errors?

P粉018653751 2023-07-23 19:17:03 0  2  612

Possible solutions to slow left joins in complex doctrine queries

I have a symfony repository method that fetches a fairly complex dataset which is then placed in a CSV file by an export manager class. I don't want to put the entire code that handles the export job, but I managed to pinpoint the point at which the query slows down, so my question is about any othe...

P粉517475670 2023-09-02 18:55:02 0  2  730

How can I make a div expand up instead of down if the vertical height increases?

I have a page with a title and some content. The header is a dynamic value and can have many different contents depending on the content. This problem occurs when the title is long and requires two or more lines. Since I want the content to stay in the same vertical and horizontal position, I want t...

P粉530519234 2024-03-22 10:39:08 0  1  373

A smarter approach would be to write a function that uses many conditional statements to return incremental values ​​based on different numerical ranges

I'm trying to write a function that returns a specific value if the input is within a certain range of numbers. Normally, I would write a series of if/elseif statements to accomplish this task. However, I'm dealing with a large number of ranges, so writing out 30+ if/elseif statements seems ineffici...

P粉311464935 2023-08-17 23:18:09 0  1  561

Add dynamic links to AJAX HTML tables generated by JavaScript

I'm using JavaScript to generate an HTML table to populate with data from an AJAX file. I want to dynamically add links in certain cells to myfile.php. I'll let PHP handle the request. Each cell should have a link, all linking back to my PHP file, something like: <ahref="myfile.php?data=cell...

P粉311464935 2023-09-15 11:20:12 0  1  636

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't wo...

P粉178132828 2023-09-05 11:18:47 0  1  932

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactNam...

P粉237125700 2023-09-05 14:46:42 0  1  802

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: ...

P粉212114661 2023-09-05 15:18:28 0  1  683

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

P粉076987386 2023-09-05 15:06:32 0  1  658

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in...

P粉369196603 2023-09-05 15:34:44 0  1  1078

How to get average of DATETIME column in MySQL while grouping by other columns

I'm creating and populating a MySQL table using the following query: SETtime_zone='+00:00';CREATETABLEtimestamp_n_datetime(idINT,timeDATETIME,avg_timeDATETIME);INSERTINTOtimestamp_n_datetime(id,time,avg_time)VALUES("1","2023-01-0310:

P粉460377540 2023-09-05 11:46:21 0  1  561

Multi-device (mobile phone) synchronization - React Native

I'm trying to create a Lightshow that will launch on all users' mobile devices at the same time (can have up to 2000-3000 users). All users will use the Internet (Wi-Fi or mobile data). In our FE we use Apollo for subscriptions and it works like a charm. But the problem is, user A can get subscribed...

P粉151466081 2023-09-05 11:58:38 0  1  761

Spades, Diamonds, Hearts, Clubs => styles do not change font color in Chrome for Android

In Google Chrome on Windows, the card suit symbols (spades, hearts, diamonds, clubs) are colored correctly using the "style" attribute. Unfortunately, the same page displayed in Google Chrome on Android does not display the colors I defined but uses the default black and red. (See the atta...

P粉896751037 2023-09-05 15:25:13 0  1  811