problem description for example, I want to create a Wallet object after the User object is successfully session.commit (), and I may need to create another object after the Wallet object is successfully created. I don t want to use functions to encap...
I would like to ask you, in the development of image watermarking on the server side, what technologies (regardless of language and method) do you usually use to implement it? Which way do you think is best? ...
scenario: users leave comments on certain works, etc. A single table in the database stores these messages, which contains information such as the user s profile picture and nickname. Scheme: user id, is used in the comment table to associate...
refers to an example. After background processing, I return the value as follows: JSON json = JSONSerializer.toJSON(new JsonResult<ResumeVO>(0, "!", resumeVO)); return json.toString(); in this way, if the returned entity contains a val...
localhosthttp,httphttpshttp the local environment is wamp apach2.4.33 the browser is Google 67.0.3396.99 apach has not set the configuration for http to automatically jump to https ...
I have seen all kinds of connection pooling, and some of them will suspend themselves when they are exhausted and will not accept additional connection acquisition requests. When some connection pooling connections are exhausted, additional connection ac...
the card has been wrong in ERROR all day. Ask the bosses for help. the core error report is shown in the figure: the complete code is here: <?php header( Content-Type:textml;charset=utf-8 ); $username= ; $account=$_POST[ account ]; $p...
Environment: win2008 R2 (64-bit) iis7.5 php5.5.38 (nts-vs11-x86) php operating mode: fastcgi. Test Code $start = microtime(true); set_time_limit(0); @ini_set( memory_limit , -1 ); $file = . . time() . .txt ; for($i = 0; $i &...
in order to decouple, I learned that servlet is required to be separated from Service (jsp servlet presentation layer; service business logic layer; Dao persistence layer), but I feel very uncomfortable when writing practical exercises for small project...
A need to find a user created within 05-01 05-24 and last logged in a time field greater than 05-11 a comparison type how to map to url I currently write http: localhost user?create_. creation time field is range creation time is > < how to elegantly ...
< H2 > question < H2 > usually what connection to choose and what role foreign keys usually play id, ...
because the Internet of things backend b has already provided rest api, my project wants to use the rest api interface provided by the Internet of things backend b, but I also hope that some business logic can be managed independently on the backend a. ...
A lot of code that you don t like, turn it off. ...
before Mini Game jumped out, many bosses cracked Mini Game data transmission, directly modifying scores, simulated clicks, and so on. I would like to ask what is a good method. When doing some clicks, how to prevent the front end from being cracked and f...
ask the elders, want to extract the user name and password from the mysql to verify the login, the mysql table clearly has data, but the request is to return an empty array, check the database statement can not see the problem, I would like to ask the s...
I recently read the use of jwt, and I also used jwt as single sign-on authentication in the small project I wrote, and the back end is nodejs. I ve thought of the principles of csrf,csrf and jwt, and I know pretty much about it, but my question is, can...
for example, http: localhost -sharp list 2230, or get the ID after list. Thank you. ...
as shown in the figure, a simple add and query operation takes up to 1 second [environment: windows + python3 + django2]. (the amount of data in PS: is not much, and todo_list has only 2 rows of data, which is still so slow.) def get(request): -...
I want to put the pictures in a folder, and then store the addresses of these pictures in the database, and when the page wants to load these pictures, I will take them out according to the address in the database. I would like to ask how to put the pict...
the size parameter of the UIGraphicsBeginImageContextWithOptions function is too large, resulting in a memory explosion I use size data, which is about 3 times the height and width of the screen size, that is (3 UIScreen.main.bounds.height,3 UIScree...
active project, you need to obtain user information. at this time, login is placed in other projects, and the server is authenticated based on session. After logging in normally, the active project can be obtained ....
npm installation package. I just want to install a package (such as jquery) from Taobao Source, while other packages are installed from official source. How do I configure .npmrc ? ...
No one answered once before, probably because the description of the question is not very detailed configure the nginx server as follows: add_header Access-Control-Allow-Origin $http_origin; add_header Access-Control-Allow-Headers Cookie,Set-Cooki...
see that many people misunderstand that it has been sent 10 times at a time, which is added like this: if the user can click the button continuously and send a request one time at a time, a li, will be generated after each response result. Because of ...