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:
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.

[manashranjan]

Thanks very much today my dought got clear

[ganvads]

great Explanation with simple example - Thanks buddy

[johnwesley]

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

[atulchavan]

thanks a lot for this very well explained tutorial.

[rahulsolanki__]

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

[vishwjeetujgare]

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

[xojiakbarabiyorov]

if i hava an arraylist<String> in Employee class ?

[mdnazeer]

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

[MemescapeHQ]

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

[rajeevmishra]

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

[jayanthrangappaigtb]

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

[geetusoni]

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

[abhishekmishra]

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

[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.

[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?