Convert Java to JSON & JSON to Java Object | Parse JSON in Java | ObjectMapper in Jackson API

This tutorial explains, how to convert a JSON into Java object and Java object into JSON string.
This process of converting a Java Object to JSON is known as Serialization & the reverse process is de-serialization.
It needs below dependency in your dependency management:
groupId : com.fasterxml.jackson.core
artifactId : jackson-databind
version : 2.9.8
Please follow the tutorial for the implementation of the same and how to write a Java program for it.

[@atulchavan4330]

thanks a lot for this very well explained tutorial.

[@anonymouslabz5124]

Very well explained... Thanks:)

[@ganvads]

great Explanation with simple example - Thanks buddy

[@SwatechTalks]

Thanks

[@namannagar422]

very well explained. thanks.

[@Sushil2874]

Thank you.!
Very well explained.

[@SwatechTalks]

Thanks and stay tuned

[@lordgreat6051]

Very well explained

[@johnwesley4162]

Thanks for this wonderful presentation :-) It helped me a lot !

[@SwatechTalks]

Glad it was helpful!

[@mdnazeer6025]

thank you very much sir.

[@manashranjan1267]

Thanks very much today my dought got clear

[@vrindagoyal]

Awesome 👍

[@hitenarya4987]

Really liked this video

[@SwatechTalks]

Thanks

[@Indian-km4gk]

Nice tutorial

[@shubhamsharma-mt4hs]

How do we handle nested json ?

[@WickedChild95]

Good video!

[@AnuragKumar-zm2lp]

informative video

[@Vithal_Nivargi]

nice Explainned

[@theLastOneTaken]

Thanks😊😊

[@amirmalla1533]

Thanks

[@zr60]

what about multiple nested strings?

[@geetusoni7045]

if have a json string in that case how do i convert it to list of class object help please

[@rahulsolanki__]

what if one of the field in employee class is Array ?
How will you extract it from json using JsonNode ???

[@jonsantos6056]

11:14 reverse JSON

[@vishwjeetujgare7437]

can use this library with core java to store Hashmap data into MySQL databases and also retrieve it from the database can we do that...if yes how and if no why sir

[@xojiakbarabiyorov4998]

if i hava an arraylist in Employee class ?

[@MemescapeHQ]

it was good but what about the objects and arrays in the JSON

[@AnuragKumar-zm2lp]

learn by doing

[@jayanthrangappaigtb9587]

i want same in Servlet -- how to handle JSON request and response in servlet with jackson +jersey in JBoss

[@renejacques8288]

How is your video compared to Jsoup?

[@rajeevmishra3056]

If we are getting ResponseEntity response ….
Now how we can convert this response as json object

[@SwatechTalks]

There can be multiple ways.. one is using the google gson library. You can use below reference:
import com.google.gson.Gson;
ResponseEntity.ok(gson.toJson(""));

[@abhishekmishra2195]

What happens if we give int instead of string in json string and then try to deserialize it?

[@SwatechTalks]

what so ever datatype you pass, data should also be of the same type. if this is the case then it can deserialize else it would give type mismatch error

[@mdnazeer6025]

hello sir,
please show, how to produce json with nested object.
{
"empName" : "john",
"address" : {
"City" : "LA",
" Country" :"US"
}
}

[@venkyv9289]

QQQQQ

[@MrRahulKumarKandula]

Thanks for making me understand ObjectMapper. But why would you use the ObjectMapper class to write to a text file. You could have used any other writer class. Having said that thanks though.

[@SwatechTalks]

Thats just a example.. intention was to showcase object mapper use and not how to write data in file. Once you have your serialised version of json data you can do anything it .. here in this tutorial i wrote that in file. Thats it.. Thanks

[@MrRahulKumarKandula]

@@SwatechTalks Got it. Thanks again.

[@TechTalksbyRanga]

Hey, I need to get json data from postman and need to insert that json to jasper report "Fields". How do I do that?

[@SwatechTalks]

are you calling any rest endpoint through postman?

[@TechTalksbyRanga]

Yes. Do I need to assign that postman json to variables?@@SwatechTalks

[@SwatechTalks]

not really.. see if you can call the endpoint through jasper and use the response

[@TechTalksbyRanga]

Do you have a video about this? Can I use any data adapter in jasper studio to create the jrxml file? I am stuck here since 3 days.@@SwatechTalks

[@SwatechTalks]

I dont have knowledge on jasper my friend.. but it should be possible to create a pipeline where you configure your jasper report to fetch data from rest endpoint and then put it in fields.. see if you have some sort of ETL in jasper

[@hamzaalicetin1717]

Sblm