Bean To JSON
JSON (JavaScript Object Notation) is a lightweight text-based open standard
designed for human-readable data interchange.
Douglas Crockford has provided a reference implementation of JSON in Java at
http://json.org/ useful for JSON
serialization and deserialization.
Click here
to download the compiled library.
The following example shows serializing a bean to JSON string.
package com.bethecoder.tutorials.json_java.common; import java.util.Date; public class Student { private String firstName; private String lastName; private int age; private String hobby; private Date dob; public Student ( String firstName, String lastName, int age, String hobby, Date dob ) { super () ; this .firstName = firstName; this .lastName = lastName; this .age = age; this .hobby = hobby; this .dob = dob; } public String getFirstName () { return firstName; } public void setFirstName ( String firstName ) { this .firstName = firstName; } public String getLastName () { return lastName; } public void setLastName ( String lastName ) { this .lastName = lastName; } public int getAge () { return age; } public void setAge ( int age ) { this .age = age; } public String getHobby () { return hobby; } public void setHobby ( String hobby ) { this .hobby = hobby; } public Date getDob () { return dob; } public void setDob ( Date dob ) { this .dob = dob; } }
package com.bethecoder.tutorials.json_java.tests; import java.util.Date; import org.json.JSONException; import org.json.JSONObject; import com.bethecoder.tutorials.json_java.common.Student; public class Bean2Json { /** * @param args * @throws JSONException */ public static void main ( String [] args ) throws JSONException { Student stud = new Student ( "Sriram" , "Kasireddi" , 2 , "Singing" , new Date ( 110 , 4 , 6 )) ; JSONObject obj = new JSONObject ( stud ) ; System.out.println ( obj.toString ( 2 )) ; //pretty print with indent } }
{
"lastName": "Kasireddi",
"dob": "Thu May 06 00:00:00 IST 2010",
"age": 2,
"hobby": "Singing",
"firstName": "Sriram"
}
