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 JSON > GOOGLE GSON > JSON to Bean

JSON to Bean 

Google-gson is a java library from Google for encoding and decoding JSON text. Get the latest binaries from http://code.google.com/p/google-gson/. The following example shows converting a JSON string to java bean.

File Name  :  
com/bethecoder/tutorials/google_gson/common/Student.java 
   
package com.bethecoder.tutorials.google_gson.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;
  }

  public String toString() {
    return "Student[ " +
      "firstName = " + firstName +
      ", lastName = " + lastName +
      ", age = " + age +
      ", hobby = " + hobby +
      ", dob = " + dob +
      " ]";
  }
}
   

File Name  :  
com/bethecoder/tutorials/google_gson/tests/Json2Bean.java 
Author  :  Sudhakar KV
Email  :  [email protected]
   
package com.bethecoder.tutorials.google_gson.tests;

import com.bethecoder.tutorials.google_gson.common.Student;
import com.google.gson.Gson;

public class Json2Bean {

  /**
   * @param args
   */
  public static void main(String[] args) {
    Gson gson = new Gson();
    String jsonStr = "{\"firstName\":\"Sriram\"," +
        "\"lastName\":\"Kasireddi\"," +
        "\"age\":2," +
        "\"hobby\":\"Singing\"," +
        "\"dob\":\"May 6, 2010 12:00:00 AM\"}";
    
    Student stud = gson.fromJson(jsonStr, Student.class);
    System.out.println(stud.toString());   
  }

}
   

It gives the following output, 
Student[ firstName = Sriram, lastName = Kasireddi, age = 2, 
	hobby = Singing, dob = Thu May 06 00:00:00 IST 2010 ]



 
  


  
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