Spring controller getting bodyRequest null - spring-boot

Question

I am facing a problem while trying to process a POST request via POSTMAN.
In my controller I have :
#ApiOperation(value = "xxxx", notes = "xxxx", response =
String.class, authorizations = {
#Authorization(value = "basicAuth")
}, tags={ "saveCourse", })
#ApiResponses(value = {
#ApiResponse(code = 200, message = "successful operation", response =
String.class),
#ApiResponse(code = 404, message = "Not found", response =
String.class),
#ApiResponse(code = 405, message = "Invalid input", response =
String.class),
#ApiResponse(code = 500, message = "Internal Server Error", response =
String.class),
#ApiResponse(code = 200, message = "unexpected error", response =
String.class) })
#RequestMapping(value = "/course/saveCourse",
produces = { "application/json"},
consumes = { "application/json"},
method = RequestMethod.POST)
ResponseEntity<String> saveCourse(#ApiParam(value = "xxxxx" ,required=true ) #RequestBody Course coure){
LOG.info(course.toString);
}
Class Course :
public class Course implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
#JsonProperty("prof")
private Prof prof = null;
#JsonProperty("students")
private List<Strudent> students = new ArrayList<Strudent>();
// getters & setters
// ...
}
class Prof :
public class Prof implements Serializable {
#JsonProperty("profLastName")
private String profLastName = null;
#JsonProperty("profFirstName")
private String profFirstName = null;
#JsonProperty("age")
private int age = null;
// getters & setters
}
class Student :
public class Student implements Serializable {
#JsonProperty("studentId")
private String studentId = null;
#JsonProperty("studentName")
private String studentName = null;
#JsonProperty("studAge")
private int studAge = null;
// getters & setters
// ...
}
in POSTMAN I am sending a POST request with the header :
Content-Type : application/json
the body :
{
"prof": {
"profLastName":"test",
"profFirstName":"test",
"age":"30"
},
"students" :[
"{'studentId':'0','studentName':'','studAge':'00'}",
"{'studentId':'2','studentName':'','studAge':'21'}",
"{'studentId':'4','studentName':'','studAge':'40'}",
"{'studentId':'6','studentName':'','studAge':'60'}"
]
}
When I process the request I am getting the RequestBody null :
[http-nio-xxxx-exec-4] INFO com.test.myControllerIml - class Course {
prof: null
students: []
}

Answer 1

you request body is wrong
you should use
{
"prof": {
"profLastName":"test",
"profFirstName":"test",
"age":"30"
},
"students" :[
{"studentId":"0","studentName":"","studAge":"00"},
{"studentId":"2","studentName":"","studAge":"21"},
{"studentId":"4","studentName":"","studAge":"40"},
{"studentId":"6","studentName":"","studAge":"60"}
]
}