Java Tutorials Corner: Read JSON using GSON Stream

Read JSON using GSON Stream

In this tutorial we are going to see how to read JSON Data from file using GSON
1. Create project called JSONExample.
2. Create package called com.javatutorialscorner.gson
3. Create java class called GSONStreamRead under com.javatutorialscorner.gson.
GSONStreamRead.java

package com.javatutorialscorner.gson;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

import com.google.gson.stream.JsonReader;

public class GSONStreamRead {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  JsonReader jsonReader = null;

  try {
   jsonReader = new JsonReader(new FileReader(
     "C:\\jtc\\javatutorialscorner.json"));
   jsonReader.beginObject();
   while (jsonReader.hasNext()) {
    String name = jsonReader.nextName();

    if (name.equals("Name")) {
     System.out.println("String : " + jsonReader.nextString());
    } else if (name.equals("URL")) {
     System.out.println("String : " + jsonReader.nextString());
    } else if (name.equals("Tutorials")) {

     jsonReader.beginArray();
     while (jsonReader.hasNext()) {
      System.out.println("Arary List : "
        + jsonReader.nextString());
     }
     jsonReader.endArray();
    } else {
     jsonReader.skipValue();
    }

   }
  } catch (FileNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 }

}

Now run the program see the following output in console.

String : Java Tutorials Corner

String : http://www.javatutorialcorner.com

Arary List : Java

Arary List : Servlet

Arary List : JSP

Arary List : Struts

Arary List : Hibernate

Arary List : Spring