It is always a good practice to encode the URL or the Form parameters as it is vulnerable to attack. URLEncoder is the utility class provided by Java which can be used for HTML form encoding. The URLEncoder class converts any String into application/x-www-form-urlencoded. In this article we will learn about Java URL encode and decode using URLEncoder and URLDecoder. … [Read more...]
Spring Boot Exception Handling – @RestControllerAdvice + @ExceptionHandler
A good REST API should handle the exception properly and send the proper response to the user. The user should not be rendered with any unhandled exception. In this Spring Boot Exception Handling article, we will learn how to handle in exception in Spring Boot RESTful Web Services using @RestControllerAdvice and @ExceptionHandler … [Read more...]
Spring Security Custom Login Form Example | Java Configuration
In this Spring Security Custom Login Form Example, we will learn how to build a Spring MVC application which will be protected by Spring Security. We will be building our own login form rather than using the default form provided by Spring Security … [Read more...]
Spring Boot Security Database Authentication Example
In this Spring Boot Security Database Authentication Example, we will learn how to secure REST API using Spring Boot Database Authentication. All the user who tries to access the secured resource will be authenticated and authorized using the Database Authentication. … [Read more...]
Spring Boot Security Basic Authentication – Secure REST API
In this post, we will learn how to secure REST API using Spring Boot Security Basic Authentication. With the security in place our application will be providing the data to the user who is authenticated through Basic Authentication. In order to access a secured resource the user has to provide the request to our API with the header information containing the username and … [Read more...]
Spring Security REST Basic Authentication
In this article, let's learn how to enable Spring Security REST Basic Authentication. We will be setting up the Spring Security using XML configuration. We will be building the Employee Management system where in which you will be able to Create an Employee, Get all the Employee / particular Employee details, Modify an existing Employee and Delete the Employee. … [Read more...]
Spring Boot @ConfigurationProperties Example
The Spring Boot @ConfigurationProperties annotation enables us to bind the external property file or YAML file to a Java Bean Object. In this article let's learn how to use Spring Boot @ConfigurationProperties annotation. … [Read more...]
Java Salted Password Hashing
Hashing is a cryptographic function which converts any amount of data into a fixed length hash which cannot be reversed. Hashing enables us to validate if the input has changed even a little bit, if changed then the resulting hash will be different. In this article we will learn the technique of Salted Password Hashing. … [Read more...]
Spring XML Configuration Example
In this Spring XML Configuration Example, we will be creating a simple spring application using the spring xml configurations which displays Book and Library details and we will also be injecting book reference into library class. … [Read more...]
Google Tink Example – Google Cryptography
Google released its Cryptographic library Google Tink on August 2018, it was a multi-language, cross-platform cryptographic library. At present Google Tink Cryptography API supports the 4 fundamental cryptographic operations or primitives including Authenticated Encryption with Associated Data (AEAD), Message Authentication Code (MAC), Digital Signature (PublicKeySign and … [Read more...]
Java AES 256 Encryption and Decryption Example | Unlimited Strength JCE + CBC Mode PKCS5Padding
AES (Advanced Encryption Standard) is a strong symmetric encryption algorithm. AES supports key lengths of 128, 192 and 256 bit.In this article, we will learn AES 256 Encryption and Decryption. … [Read more...]
How to Send Email in Java using Gmail SMTP | TLS & SSL
In this tutorial, we will learn How to Send Email in Java using Gmail SMTP, we will send email through gmail SMTP server by TLS (Transport Layer Security) and SSL (Secured Socket Layer). … [Read more...]
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