In this tutorial we will learn how to implement service retry in our spring boot application without any custom logic. For Example : we want to connect with DB or we want to get data from any other third party API but due to some network issue or any other…

In this tutorial, we will learn How to make secure rest API’s using basic authentication and authorization. Okay, Lets create one spring boot application and after that we will implement the spring security to our rest API. Go to : https://start.spring.io/ and Enter project details and will add two dependencies…

I’m trying to use AES Algorithm to mitigate the CWE-327 vulnerability. Initialization Vector(IV) needs to be provided as part of this and this value needs to be randomized. Here we…

In this tutorial we will see which is the best approach to reverse a string in java. package com.java.programs; // Write a Java Program to reverse a string. public class Reverse_A_String { public static void main(String[] args) { // 1st approach…

In this tutorial we will learn how to fix CRLF Injection Risk. We will see how to sanitize and neutralize all user-supplied data or properly encoded output in HTTP headers…

Improper Restriction of XML External entity reference CWE ID 611. In this tutorial we will learn How to Configure the XML parser to disable external entity resolution. Description : The product processes an XML document that can contain XML entities with URLs that resolve to documents outside of the intended…

In this tutorial we will use java 8 stream to find frequency of each character in a given String.

In this tutorial, I have discussed the spring boot top questions and answers with proper explanation and examples. Q1. What does the @SpringBootApplication annotation do internally? Ans : The @SpringBootApplication annotation is equivalent to using @Configuration, @EnableAutoConfiguration, and @ComponentScan with their default attributes. Spring Boot enables the developer to use…

In this tutorial we learn how to split based on delimiter within limit. We know we can split a string over some delimiter in Java. Suppose we run split() on a string. String str = “This is a java program”; str.split(“ …