To test whether the validity of tags, attributes in an XML file are according to the needs we want or not, you can use an XSD Schema file. What is it? We will find out in this tutorial. Assume now, you are working with an… Read More
In this tutorial, as the tutorial introducing basic about Hibernate, not lengthy, I will go straight to an example of JPA with the implementation of Hibernate to give you a first look and understand how JPA works. First, I will create a Maven project as… Read More
If you, who have ever worked on XML files, are more or less aware of the namespace concept in XML. Let me give you the following example to give you a first look at it:
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<?xml version="1.0" encoding="UTF-8"?> <classes xmlns:c1="https://huongdanjava.com/class1" xmlns:c2="https://huongdanjava.com/class2"> <c1:class> <c1:students> <c1:student> <c1:name>Khanh</c1:name> <c1:address>123</c1:address> </c1:student> <c1:student> <c1:name>Quan</c1:name> <c1:address>456</c1:address> </c1:student> </c1:students> </c1:class> <c2:class> <c2:students> <c2:student> <c2:name>Khanh</c2:name> <c2:address>789</c2:address> </c2:student> <c2:student> <c2:name>Duy</c2:name> <c2:address>234</c2:address> </c2:student> </c2:students> </c2:class> </classes> |
Declaring xmlns:c1=”https://huongdanjava.com/class1″ or xmlns:c2=”https://huongdanjava.com/class2″ then the xmlns:c1 or xmlns:c2… Read More
Hibernate, as I say in this tutorial, besides implementing the JPA specification, also implements its own framework for connecting and manipulating with database management systems. In this first tutorial about Hibernate, I will go straight to an example of using Hibernate to get database data,… Read More
What is the HTTP client? For example, if you want to access a website, you are a client. You type the URL of the website into the browser, and you get the content of that website in the browser. Most websites use the HTTP protocol,… Read More
JSch is a Java library implementing SSH2 protocol, which allows us to connect and manipulate files on an SFTP server. In this tutorial, I will guide you all how to connect to an SFTP server using this library. First, I will create a Maven project as… Read More
In this tutorial, I will guide you to convert from InputStream to ByteArray using Apache Commons IO library. In the Apache Commons IO library, there is a class called IOUtils. It contains three methods that allow us to easily convert from InputStream to ByteArray. That… Read More
Apache Ant is a tool for building Java projects. In the old days, when working at my old company, I always used it. But now, it is less used because of Apache Maven. In this tutorial, I will guide you how to copy a file… Read More
In Java, we inherit one object using the abstract keyword, Spring also supports us to do the same thing in itself. This tutorial will show you how to use bean inheritance in Spring. OK, first we need to have a Maven project to work on.… Read More
To compile the source code in Maven, we will usually use the Maven Compiler Plugin. It allows us to configure the version of Java that we want to compile the source code. For example, if you write code using the syntax of Java 7 and… Read More
