Execute PHP without leaving the page

I have a form - textarea (named su) and submit button. After the form is submitted I need to run a PHP script without refreshing/leaving the page "echo" or somehow printing the return on the screen I'm pretty sure this can be achieved with some kind of ajax request. But I don't know what t...

P粉561323975 2023-10-23 19:05:06 0 1 285

Preventing SQL injection attacks in Java programs

I have to add a statement to my java program to update the database table: Stringinsert="INSERTINTOcustomer(name,address,email)VALUES('"+name+"','"+addre+"','"+email+"'); ";I've heard this can be exploited via SQL injection, for example: DROPTABLEcustomer

P粉328911308 2023-10-20 20:06:17 0 2 256

How to get the inner text of a DIV using javascript?

How to get the inner text of a DIV controller using java script?

P粉809110129 2023-10-18 11:02:20 0 3 258

What do "symbol not found" or "unable to resolve symbol" errors mean?

Please explain the following about "symbol not found", "cannot resolve symbol" or "symbol not found" errors (in Java): What do they mean? What factors can cause these problems? How do programmers fix these problems? This question aims to provide a comprehensive Q&A ...

P粉106711425 2023-10-09 13:52:29 0 2 379

How to create an event when the theme changes

I want to host an event when the theme changes. Do not use setTheme(). vareditor=ace.edit("editor");ace.require("ace/ext/settings_menu").init(editor);editor.session.setMode("ace/mode/java"

P粉245276769 2023-09-10 19:52:39 0 1 306

How to use JDBC in Java to implement continuous updates of the database server without increasing RAM consumption

I'm writing a fighting game in JavaFX, using JDBC to update information into a MySQL database. Most tasks that get basic information from the database server work fine if they are not repeated continuously. The problem arises when I need the program to constantly update the opponent's information, s...

P粉323224129 2023-09-07 20:10:29 0 1 311

The rewritten title is: How to trigger JavaScript code when anchor is clicked in footer tag?

This is my footer HTML code:

How do I convert this DES encryption code from Java code to JavaScript?

How to convert this Java code to JavaScript? publicstaticStringgetSignature(Stringskey,Stringiv,Stringdata)throwsException{IvParameterSpecⅣ=newIvParameterSpec(iv.getBytes("utf-8"));DESKeySpecdesKey=newDESKeySpec

P粉504080992 2023-09-06 13:31:17 0 1 266

jquery ajax() function not working properly or even being acknowledged

I'm currently working on a project using jqueryajax functions. I just want the ajax function to display some text from a file on the server when a button is clicked, but when I click the button it does nothing. I tried adding an error message but that doesn't seem to work either. I've made sure to u...

P粉947296325 2023-09-06 11:40:35 0 1 301

MYSQL Workbench - Index after deletion (Java)

I have a problem with MYSQLWorkbench. Let's say I have this table, user "x" has index 8. Let's say I delete this user so now I only have 7 users. If I create a new user using the Java console, the new user is created with ID9 because it is auto-incremented. Is there a way to tell Workbench...

P粉729518806 2023-09-05 10:34:42 0 1 285

Restriction Java Spring Boot only accepts unique month-year combinations

How to allow input of only month-year combinations in JavaSpringBoot. I need to ensure that the user (Postman client) can enter a record (randomly generated value) for each month of the current year. For example: Month: February->Year: 2020->generatedValue=random. When the user enters February...

P粉676588738 2023-09-03 10:11:31 0 1 200

Method to call SQL stored procedure: use CreateNativeQuery

I have a SQL stored procedure that contains two queries and I want to call the stored procedure from my Java code. I tried the code below but it only returns the result list of the first query in the stored procedure. Queryquery=em.createNativeQuery("{callvoucherRedemption(?,?,?)}");query....

P粉064448449 2023-09-02 00:10:01 0 1 288

Build a login page using MySQL, Java, HTML and CSS

I have created a table containing the login details and written a program in Java to handle the information, but I don't know how to link the HTML's front-end file to the Java file.

P粉244730625 2023-09-01 13:24:50 0 1 289

How to decrypt encrypted string in Java in PHP?

I am trying to use the following code to decrypt an encrypted string in JAVA. SecretKeysecretKey=newSecretKeySpec(build3DesKey(key),"DESede");Ciphercipher=Cipher.getInstance("DESede");cipher.init(Cipher.DECRYPT_MODE,secretKey);byte[

P粉083785014 2023-08-30 12:12:13 0 1 201

When calling Spring Boot REST API multiple times using the same JDBC connection

I have a REST web service written in Java/SpringBoot, running on Tomcat9. I need to create a MySQL temporary table in one web service call and access it in another service call. Since the temporary table is connection scoped, I need to use the same connection I used when creating the table in the fi...

P粉769045426 2023-08-27 09:40:00 0 1 258

Best Way: Retrieve, Encrypt, and Update Millions of Records in MySQL Using Java 8

We have a requirement where we need to read approximately 10 million records from a MySQL database, encrypt the records, and update the encrypted values back into the fields. How to achieve this requirement in the most efficient way. 1: Field level encryption from MySQL database using AES_ENCRYPT:...

P粉211600174 2023-08-27 00:17:18 0 1 301

IntelliJ cannot resolve dependency: mysql-connector-java

I'm running into an issue where IntelliJ doesn't recognize the mysql-connector dependency in my pom.xml file. It shows up in red and says "Dependency 'mysql:mysql-connector-java:8.0.25' not found". I don't need to download anything, right? Is it enough to just declare dependencies in pom.x...

P粉238433862 2023-08-25 12:21:39 0 1 270

How to get useful error messages in PHP?

I often try to run a PHP script but just get a blank screen. No error message; just an empty screen. The cause could be a simple syntax error (wrong parentheses, missing semicolon), or a failed function call, or something else entirely. It's hard to figure out what the problem is. I ended up comment...

P粉283559033 2023-08-23 17:26:55 0 2 242

Can I use OAuth 2.0 without a redirect server?

I'm trying to create a native Java-based client that interacts with the SurveyMonkeyAPI. SurveyMonkey requires generating a long-lived access token using OAuth2.0, which I'm not very familiar with. I've been googling for a few hours now and I think the answer is no, but I just wanted to make sure: i...

P粉710478990 2023-08-22 22:18:09 0 2 283

Ways to avoid "StaleElementReferenceException" errors in Selenium

I'm implementing a lot of Selenium tests in Java - sometimes, my tests fail due to StaleElementReferenceException. Can you suggest some ways to make the tests more stable?

P粉920835423 2023-08-21 17:47:18 0 2 197