Jackson Quick Start : JSON Serialization With Java Made Easy

Name: Jackson Quick Start : JSON Serialization With Java Made Easy
Rating: 4.6 (327 reviews)

Learn the fundamentals of Jackson quickly and easily through examples. Jackson makes JSON with Java fun and easy!

Created byCraig Hawkins

Last updated 4/2020

English

What you'll learn

Seriarization of Java objects into JSON using Jackson
De-serialization of JSON into Java objects using Jackson
How to avoid de-serialization errors
How to resolve naming mismatches between JSON and Java
How to use Jackson to produce human-readable JSON

Course content

3 sections • 14 lectures • 36m total length

Introduction2:48
Course Requirements0:20

Serialize a Java object into a JSON string2:10
Serialize a Java object into a JSON file2:31
De-serialize a JSON string into a Java object3:09
Deserialize a JSON string into a Java object using Jackson's ObjectMapper and readValue, mapping keys name and number to the volleyball player class and avoiding mismatches that trigger exceptions.
De-serialize a JSON file into a Java object3:31
Serialize a Java list to a JSON string1:49
Learn to serialize a Java list to a JSON string using Jackson's ObjectMapper and writeValueAsString, turning a simple list into a JSON array.
Serialize a Java map to a JSON string1:54
Learn to serialize a Java map into a json string using Jackson's ObjectMapper and the writeValueAsString method by populating a hash map of country capitals.
@JsonAlias annotation during serialization4:04
Learn how the @JsonAlias annotation resolves naming mismatches during deserialization by mapping multiple incoming keys to class fields, and see how aliases prevent unrecognized field errors.
@JsonIgnore annotation during serialization2:30
Learn how the JsonIgnore annotation excludes fields from a Java object's serialized json using Jackson's object mapper, shown by omitting country of origin from the Apple object.
@JsonIgnore annotation during deserialization3:31
Serialization of Java objects containing other Java objects3:04
Deserialization of Java objects containing other objects3:45

Requirements

basic understanding of Java (methods, classes, variables, objects, etc.)
basic understanding of how to use an IDE (Eclipse, NetBeans, IntelliJ, etc.)

Description

Let's make things easy! In this quick-start course, students will learn how to use Jackson to serialize and deserialize JSON. Import statements, Jackson classes and methods and program output will be illustrated and explained. By the end of the course, students will be able to serialize Java objects into JSON, deserialize JSON into Java objects, and will know how to avoid programming errors. The course is taught by a straight-A Ivy League graduate with industry experience in the subject matter.

Who this course is for:

Java developers who want to know how to use Jackson to serialize and de-serialize JSON

Jackson Quick Start : JSON Serialization With Java Made Easy

What you'll learn

Explore related topics

Course content

Introduction2 lectures • 3min

Jackson Fundamentals11 lectures • 32min

Course Conclusion1 lecture • 1min

Requirements

Description

Who this course is for: