Solved

Create a POJO (GSON--toJson)

Posted on 2014-07-21
1
258 Views
Last Modified: 2014-08-04
Hello,
  I need to create  POJO that returns the following JSON string
{"Fields":{"summary":"summary","issueType":{"name":"task"},"project":{"key":"xyz"}})

Here is my class
public class JIssue 
{

	private String summary;
	private Map<String, String> issueType;
	private Map<String, String> project;
	public JIssue(Map<String, String> issueType,Map<String, String> project,String summary) 
	{
		// TODO Auto-generated constructor stub
		setSummary( summary);
		setIssueType( issueType);
		setProject( project);
		
	}
	public String getSumamry()
	{
		return summary;
	}
	public void setSummary(String summary)
	{
		this.summary= summary;
	}
	public Map<String, String> getIssueType() {
        return issueType;
    }
    public void setIssueType(Map<String, String> issueType) {
        this.issueType = issueType;
    }
    
    public Map<String, String> getProject() {
        return project;
    }
    public void setProject(Map<String, String> project) {
        this.project = project;
    }

}

Open in new window


MAIN code
public static void main(String[] args) 
	{
		Map<String, String> prj = new HashMap<String, String>();
		Map<String, String> issueType = new HashMap<String, String>();
		
                 prj.put("key", "xyz");
		issueType.put("name", "task");

		JIssue myIssue = new JIssue(issueType,prj,"summary");
		
                Gson gson = new Gson();
		String data = gson.toJson(myIssue);
		//System.out.println(data);
		
	}

Open in new window

the above code returns
{"summary":"summary","issueType":{"name":"task"},"project":{"key":"xyz"}}

I want
{"Fields":{"summary":"summary","issueType":{"name":"task"},"project":{"key":"xyz"}})

How can I change the class to return the above json string
0
Comment
Question by:SiemensSEN
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 21

Accepted Solution

by:
Amitkumar Panchal earned 250 total points
ID: 40239510
You can create a class by wrapping all fields (ie. project, summary, issuetype) as given below:


import java.util.HashMap;
import java.util.Map;

import com.google.gson.Gson;


public class JIssue 
{

	class JFields {

		private String summary;
		private Map<String, String> issueType;
		private Map<String, String> project;
		
		public JFields(Map<String, String> issueType, Map<String, String> project, String summary) {

			setSummary( summary);
			setIssueType( issueType);
			setProject( project);
		}

		private String getSumamry() {
			return summary;
		}
		
		private void setSummary(String summary) {
			this.summary= summary;
		}
		
		private Map<String, String> getIssueType() {
	        return issueType;
	    }
	    
		private void setIssueType(Map<String, String> issueType) {
	        this.issueType = issueType;
	    }
	    
	    private Map<String, String> getProject() {
	        return project;
	    }
	    
	    private void setProject(Map<String, String> project) {
	        this.project = project;
	    }
		
	}

	private JFields Fields; 
	
	
    public JFields getFields() {
    	return Fields;
    }
    
    public void setFields(JFields fields) {
        this.Fields = fields;
    }
	
	public JIssue(JFields fields) {

		setFields(fields);
	}
	
	public JIssue(Map<String, String> issueType, Map<String, String> project, String summary) {
		
		JFields fields = new JFields(issueType, project, summary);
		setFields(fields);
	}

    public static void main(String[] args) {
    	
		Map<String, String> prj = new HashMap<String, String>();
		Map<String, String> issueType = new HashMap<String, String>();
		
        prj.put("key", "xyz");
		issueType.put("name", "task");

		JIssue myIssue = new JIssue(issueType, prj, "summary");
		
        Gson gson = new Gson();
		String data = gson.toJson(myIssue);
		System.out.println(data);
	}
}

Open in new window


Output : {"Fields":{"summary":"summary","issueType":{"name":"task"},"project":{"key":"xyz"}}}
0

Featured Post

Interactive Way of Training for the AWS CSA Exam

An interactive way of learning that will help you visualize core concepts so that you can be more effective when taking your AWS certification exam.  Built for students by a student to help them understand the concepts that they are being taught.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
A solution for Fortify Path Manipulation.
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.
Suggested Courses

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question