How to wrap JSON Object 

Flexjson is a lightweight java library for serializing and de-serializing java beans, maps, arrays and collections in JSON format. Get the latest binaries from https://sourceforge.net/projects/flexjson/. This requires the library flexjson-2.1.jar to be in classpath. The following example shows how to wrap the resultant JSON with the given ROOT name.

File Name  :   com/bethecoder/tutorials/flexjson/common/Student.java

package com.bethecoder.tutorials.flexjson.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() {}      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;   }   public String toString() {     return "Student[ " +       "firstName = " + firstName +       ", lastName = " + lastName +       ", age = " + age +       ", hobby = " + hobby +       ", dob = " + dob +       " ]";   } }

File Name  :   com/bethecoder/tutorials/flexjson/tests/RootNameTest.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.flexjson.tests; import java.util.Date; import com.bethecoder.tutorials.flexjson.common.Student; import flexjson.JSONSerializer; public class RootNameTest {   /**    * @param args    */   public static void main(String[] args) {     JSONSerializer serializer =        new JSONSerializer().rootName("my_student").prettyPrint(true);      Student stud = new Student("Sriram", "Kasireddi", 2, "Singing", new Date());          String jsonStr = serializer.serialize(stud);     System.out.println(jsonStr);   } }

{
    "my_student": {
        "age": 2,
        "class": "com.bethecoder.tutorials.flexjson.common.Student",
        "dob": 1342034567843,
        "firstName": "Sriram",
        "hobby": "Singing",
        "lastName": "Kasireddi"
    }
}