Learn HOW TO PARSE JSON IN JAVA: A Quick Guide скачать в хорошем качестве

Learn HOW TO PARSE JSON IN JAVA: A Quick Guide

When you want to know how to parse JSON in Java, there are so many different libraries to select from. What are the different solutions? Show me a quick example with code samples and what are the application security issues I should be aware of for parsing JSON? #IT #Development #SoftwareDevelopment #JavaProgramming #JavaTutorial #AppplicationSecurity #AppSec #appsecurity #informationsecurity #infosec Chapters 00:00 Introduction 00:25 Overview of video 01:39 What is JSON 02:57 JSON Example 03:28 Picking a parsing library 04:46 Code the solution 07:39 Adding the library to Maven pom 11:03 Discussion of application security So the question we address in this video is: How can we parse JSON in Java. This is a great question and we could spend hours discussing the nuances of this topic. In this video, we’ll present a JSON file or document, discuss the format and pull out some the data elements in an example Java application First, let’s talk about JSON. What is it? JSON stands for Javascript Object Notation it’s a language independent data format that we can use to express objects as a human readable list of properties The data format represents an object as a curly brace delimited set, with a comma separated list of properties in between to represent the properties and state of the object For each property, the name is expressed as a double quoted string The property string name is followed by a colon character which is followed by the value of the property which is in one of the allowed JSON types The supported types are number, string, Boolean, array, object and null Numbers are unadorned by any punctuation such as double quotes, so you will see a number by itself A string will be surrounded by double quotes A boolean will be either true or false Null will be the word null An opening and closing set of curly braces represents a JSON object And finally an array is represented by an opening and closing set of square brackets Of course an object or array can be nested and contain additional objects and arrays so a JSON object can be quite complex Let’s take a look at a short example JSON object. A few things to note about this object First you’ll see it is an anonymous object meaning it does not have a name in double quotes followed by a colon before the opening curly brace The overall object has 4 properties. They include 2 strings: firstname and lastname Age which is a number And another object called address Notice address is not an anonymous object since it has a name, a colon and then a set of curly braces Within the address object, we see 4 properties.