LDAP authentication in Java
In this tutorial, we share the common code block that is used to connect to an LDAP server in Java. 1. InitialDirContext To connect to an LDAP server, you can...
How to return a custom class from Hibernate query
Hibernate is one of the most popular ORM frameworks in Java. Through Hibernate, developers deal with Java POJOs for doing CRUD operations on the database. In order to return a...
Java – Convert Object to Map
This tutorial provides several ways of converting a Java object to a Map in Java. 1. Reflection The traditional way of converting a Java object to a Map is through...
How to reset password in Oracle 11g
1. Reset password In order to reset a password in Oracle 11g: Log in as a system user through sqlplus or any oracle client. Run this command: alter user <user_name>...
How to create a jar file with a package structure
This tutorial allows you to archive a list of compiled classes residing under a particular package in the form of a JAR file. Suppose you have 2 classes A.class &...
How to schedule a tomcat service restart in windows
This tutorial provides a step-by-step guide on how to create a windows task which restarts the tomcat service at a specific time frame. 1. Create a batch file for stopping/starting...
How to stop/start windows service via batch or cmd
This tutorial describes how to stop/start a windows service via batch or cmd. 1. Find service name First of all, you need to get the service name, to do this:...
Eclipse – Restore deleted file from local history
This tutorial shows how to restore a deleted file from the local history in Eclipse. Eclipse keeps the deleted files in its local history and provides a very simple way...
Axis2 – Generate a SOAP client from WSDL
This tutorial provides a step by step guide on how to generate a SOAP client from WSDL using Apache Axis2. The steps are pretty straightforward, if you follow them in...
Eclipse – Generate a SOAP client from WSDL
This tutorial provides a step by step guide on how to generate a SOAP client from WSDL using Eclipse. 1. Create a stand-alone project If you’re going to generate the...
How to download a zip file in Java
In our previous article, we showed how to download a file of any type from a servlet. Now for zip files, things are a bit different, in this tutorial, we...
How to create a zip file in Java
In this tutorial, we show how to create a zip file from multiple files in Java. 1- ByteArrayOutputStream & ZipOutputStream Using ByteArrayOutputStream and ZipOutputStream classes provided by the JDK, you...
Spring Dynamic Factory Bean
In this tutorial, we illustrate how to create a dynamic factory bean in Spring. Suppose we have a file converter application which converts files based on a specific conversion type...
Spring – @Autowired annotation with multiple implementations
By default, the @Autowired annotation of the Spring framework works by type, it automatically instantiates an instance of the annotated type. In a typical enterprise application, it is very common...
How to get the context path in a Spring Web application
In this tutorial, we discuss 2 ways for retrieving the context path in a Spring Web application. 1- HttpServletRequest The typical way of getting the context path is through the...
Spring – Read files from classpath
In this tutorial, we discuss several ways of reading a resource file from classpath in a Spring MVC application. 1- ClassPathResource Using ClassPathResource class provided by Spring Core, you can...
How to upload files with Spring MVC
In this tutorial, we discuss how to upload files with Spring MVC. If you’re more interested in doing it the old way using Servlets, then check “How to upload files...
How to upload files to a servlet
In this tutorial, we discuss how to upload files to a servlet. Parsing the uploaded file in the servlet depends strictly on the used version of the servlet API, here...
How to launch Putty from WinSCP
This tutorial describes how to launch Putty from WinSCP. You could face a situation where you saved your credentials in a WinSCP session and then forgot them after some time....
Pass data from JSP to Spring controller
In this tutorial, we discuss several ways of passing data from a JSP view to a Spring controller. 1- Pass form fields The most common scenario for sharing data between...
