java - Fields in Action cannot be read using struct2 tags

{code...} {code...} {code...} If you don’t use a class to encapsulate the paging fields, it will work. I don’t know what’s wrong?

三叔 2017-06-12 09:25:08 0  1  834

java - abstract inner class + generics

Simple inner class usage: {code...} Add generics to the above example {code...} Call the inner class in the test method and compile correctly. An error is reported in the main method, which cannot be referenced from a static context. If you call an internal class in another newly created class, no e...

给我你的怀抱 2017-05-17 10:00:28 0  1  903

I would like to ask a question about the tp3.2 paging class.

That's it, and now I want to add the content of the comment, I should go to another table to query the corresponding comment content through each piece of data. Then, how should I change the code? What I don't understand is how to perform another query and output it to the view at the same time with...

phpcn_u1546 2017-08-19 14:18:24 0  1  1221

How to ensure full scrolling text coverage when using CSS property 'Overflow: scroll' on a div

I'm new to programming and currently trying to make a simple one page website using HTML/CSS and JS. I have a CSS class called 'general_container' in which I write text, this class is also defined in CSS as 'div_text' (code for both is provided below): .general_container{margin:min(1vw,1vh )min(1vw,...

P粉321584263 2023-08-16 00:13:42 0  2  585

java - When writing paging in the SSH framework, the paging class cannot be injected into the service layer

service layer {code...} action layer {code...} {code...} If it is enough to use the new method instead of injection, why?

阿神 2017-06-12 09:24:51 0  3  889

thinkphp - What is the difference between "\" and "\\" when splicing paths in php?

I looked at the source code of thinkphp3.2 today and found that the connect method in Thinkphp/Library/Think/Storage.class.php is a bit confusing. The code is: {code...} Why does the path in $class need "\\ ", instead of "\\", the last "\\" is to convert "'" s...

迷茫 2017-05-31 10:33:52 0  1  867

Vue3 does not react to internal updates of class fields like Vue2 does

I noticed that in Vue2 you can bind an element to a property of a class and the element will update when such property changes from somewhere outside the Vue world, but this doesn't seem to be possible in Vue3 . I've created two simple examples here to illustrate what I mean: Vue2: https://codesandb...

P粉274161593 2024-01-29 12:45:06 0  1  376

PHP OOP - Return result of $obj->get() and $obj->get()->count() without calling another method

It's hard to explain exactly what I want, but I have to try... LaravelEloquent inspired me to write a simple php class to use the database. As far as we know we can do this in Laravel: $run=DB::table('users')->where('id',3)->where('level',2)->get (); We also do this: $run=DB::table('users')...

P粉742550377 2024-04-01 12:28:10 0  1  535

Change image via onclick() function

I want to change one picture to another when clicking on the object. The code is stacked in the following order: What I want is that when I click, the image is replaced with a colored version of the image, i.e. another image. Now, I know I can do it using JQuery/JS. But I don't want to add a lot of ...

P粉242535777 2023-08-18 08:53:28 0  1  505

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  859

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  743

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  634

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  605

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  1022

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  521

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  718

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  775

How to hide mui TextField label?

I'm developing a Nextjs app and I have a dashboard navigation bar built with mui that contains a notification that opens the notification box, which is built with regular HTML and CSS. dashboard-navbar.js: importNotificationBoxfrom"./notification-box/notification-box";//...exportconstDashb...

P粉239164234 2023-09-05 15:41:00 0  1  699