convertir objeto java a json string ejemplo de código

Hacemos una verificación exhaustiva cada tutoriales en nuestro espacio con el objetivo de mostrarte siempre la información veraz y actualizada.

Ejemplo 1: cómo convertir jsonobject a string en java

JSONObject json = new JSONObject();

json.toString();

Ejemplo 2: convertir json string al objeto json en java

try 
     JSONObject jsonObject = new JSONObject(""phonetype":"N95","cat":"WP"");
catch (JSONException err)
     Log.d("Error", err.toString());

Ejemplo 3: cómo convertir jsonobject a json string en java

import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

public class TestJSON 

	public static void main(String[] args) 

		JSONObject jObject = new JSONObject();

		jObject.put("EmployeeId", new Integer(121));
		jObject.put("Name", "Ramesh");
		jObject.put("Salary", new Double(15000.00));
		jObject.put("isPermanent", new Boolean(true));
		jObject.put("Nickname", null);
		
		//convert from JSONObject to JSON string
		String jsonText = jObject.toJSONString();

		System.out.println(jsonText);

		JSONParser parser = new JSONParser();
		
		//convert from JSON string to JSONObject
		JSONObject newJObject = null;
		try 
			newJObject = (JSONObject) parser.parse(jsonText);
		 catch (ParseException e) 
			e.printStackTrace();
		

		System.out.println(newJObject.get("EmployeeId"));
		System.out.println(newJObject.get("Name"));
		System.out.println(newJObject.get("Salary"));
		System.out.println(newJObject.get("isPermanent"));
		System.out.println(newJObject.get("Nickname"));
	

Ejemplo 4: cómo convertir objeto en api

DE-SERIALIZATION:  JSON --> JAVA OBJECT
SERIALIZATION: 	   JSON <--JAVAOBJECTIaddjacksonDataBinderdependencyinmypom.xmlfile-> 
it is a json parser. That is used for converting
from java object to json and from json to java object.

Ejemplo 5: Cómo convertir Json a objeto Java

I add GSON dependency in my POM --> It’s a json parser. That is
used to convert from java object to json and from json to java
object
SERIALIZATION: CONVERT JAVA OBJECT -> JSON
DE-SERIALIZATION: CONVERT JSON -> JAVA OBJECT

Ejemplo 6: convertir objeto java a json

Jackson Data-bind depdendency that take care of 
Converting between 
JSON to Java Object 
and 
Java Object to JSON

<dependency><groupId>com.fasterxml.jackson.coregroupId><artifactId>jackson-databindartifactId><version>2.12.0version>dependency>

---

---

Utiliza Nuestro Buscador