Snippets
jsp

How-to articles, tricks, and solutions about JSP

How can I upload files to a server using JSP/Servlet?

To upload files to a server using JSP/Servlet, you can use the following steps:

java jsp servlets jakarta-ee file-upload

How do you import classes in JSP?

To import classes in a JSP (JavaServer Page) file, you can use the <%@ page import="package.class" %> directive.

java jsp

How to solve the “failed to lazily initialize a collection of role” Hibernate exception

The "failed to lazily initialize a collection of role" exception in Hibernate is thrown when you try to access an uninitialized collection from a Hibernate entity when the entity is in a detached state.

java spring hibernate spring-mvc jsp

Redirect to an external URL from controller action in Spring MVC

To redirect to an external URL from a controller action in Spring MVC, you can use the RedirectView class and return it from the controller action.

java spring spring-mvc jsp

The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path

This error typically occurs when you are trying to use the HttpServlet class in a Java project, but the necessary libraries are not included in the project's classpath. To fix this error, you need to add the servlet-api.jar library to your project's class

java eclipse maven jsp

What is the difference between JSF, Servlet and JSP?

JavaServer Faces (JSF) is a user interface (UI) framework for building web applications.

java jsp servlets jakarta-ee jsf