Complex Java Object to Json

Question

I have a java class like :

public class Sclass {
    private Student student;
    private Teacher teacher;

    public Student getStudent() {
        return student;
    }
    public void setStudent(Student student) {
        this.student = student;
    }
    public Teacher getTeacher() {
        return teacher;
    }
    public void setTeacher(Teacher teacher) {
        this.teacher = teacher;
    }
}

public class Teacher {
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
          this.name = name;
    } 
}

public class Student {
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
}

I want to use Sclass in a rest service and thus want a json for the same, please assist.

Your REST framework, whatever it is, will probably turn that into JSON automatically. Read its documentation. If you're stuck, come back with a concrete, answerable question. "Please assist" is not one. — JB Nizet, Oct 01 '18 at 19:36
I want to test the api, using post man, for which I need to pass the json, thus need some support on that — Saurabh Jhunjhunwala, Oct 01 '18 at 19:48
Again, Stackoverflow is not a support group. You ask a concrete question, and we try to answer it. That's the principle. — JB Nizet, Oct 01 '18 at 19:51

score 0 · Accepted Answer · answered Oct 01 '18 at 19:59

0

Example using gson:

Student student = new Student();
student.setName("Student 1");
student.setAge(18);

Teacher teacher = new Teacher();
teacher.setName("Teacher 1");

Sclass sclass = new Sclass();
sclass.setStudent(student);
sclass.setTeacher(teacher);

Gson gson = new Gson();
String json = gson.toJson(sclass);

System.out.println(json);

Output:

{"student":{"name":"Student 1","age":18},"teacher":{"name":"Teacher 1"}}

answered Oct 01 '18 at 19:59

Loris Securo

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Thanks buddy, I was using an upper case for "student", it worked – Saurabh Jhunjhunwala Oct 01 '18 at 20:04

Complex Java Object to Json

1 Answers1