Spring Boot CRUD Example with Mysql React JS part-1

Hello,Today we will create a spring boot CRUD application. In, this example, we are using the MySQL database to store…

hibernate.cfg.xml location in maven project

[solved] hibernate.cfg.xml location in maven project

Hello guys, In this article, I will describe where you will keep the hibernate.cfg.xml file in your project directory. It’s…

java.lang.NoClassDefFoundError

How can I solve “java.lang.NoClassDefFoundError”

Hello guys, today we will show a common error while working on java based projects. This error is “java.lang.NoClassDefFoundError“. We…

web.xml File Location in Dynamic WebApp in Eclipse IDE

Hello friends, Sometimes when we are working with webapp in Eclipse, may not create the web.xml file by default. As…

How to Handle Error in Web.xml for Java Web Applications

Hello friends, Today I will show you how to handle the error or display customized error messages in JSP and…

How to send redirect from Java Servlet

Hello friends, Today I am going to show you how to send redirect from Java Servlet. In this example, we…

How to Apply CSS in out.println() method in JSP and Servlet

Hello friends, Today I am going to show you how to apply CSS in the out.println() method using JSP and…

How to display a list of objects in JSP through Servlet

Hello friends, Today I am going to show you how to display a list of objects using JSP and servlet.…

How to show data from MySQL database using JSP and Servlet

Hello friends, Today I am going to show you how to display data from the MySQL database using JSP and…

How to insert data in MySQL database using JSP and Servlet

Hello friends, Today I am going to show you how to insert data in the MySQL database using JSP and…

How to connect MySQL Database Using JSP and Servlet

Hello friends, Today I am going to show you how to connect your MySQL database with your JSP and servlet…

How to pass id from JSP to Servlet through url

In this example, I am going to show you how to pass the id or anything from the JSP page…

How to center a div using css

There are multiple ways to center a div, among them here are given an example of how to place a…

How to send client id and secret using axios header

Hello, Today I am going to show you how to pass the client id and secret using the header. In…

How to configure h2 database in spring boot

Hello, Today we will discuss how to configure the h2 database in the spring boot application properly. Follow the below…

How to Build a Web Scraper in Java

Hello, Today we are going to build a web scraper. Although All of you know the term, I just want…

$Read more about the article Error: Could not find a production build in the ‘D:\Projects\bu_admission_system\client\.next’ directory.$

Error: Could not find a production build in the ‘D:\Projects\bu_admission_system\client\.next’ directory.

It's a very common problem when you are working on the next js projects. The errors look like this: Because…

[solved] caused by: org.hibernate.PersistentObjectException: detached entity passed to persist:

The error looks like org.hibernate.PersistentObjectException: detached entity passed to persist: example.forms.InvoiceItem at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:127) at…

[solved] at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize

It's a common problem when working one to many, many to many JPA relations. Sometimes providing the bad configuration occurs…

PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate

This is a typical bidirectional consistency problem. The solution is very simple, Solution: Just use the CascadeType.MERGE instead of CascadeType.PERSIST…