I am sending a JSON post request from postman in below format {"name":"ABC","id":1}
and trying to map it with my Employee class in Controller with #Requestbody
but still getting error as HTTP Status 415 – Unsupported Media Type with Headers ( Content-Type : application/json )
1) Controller :
#Controller
public class RegistrationController {
#Autowired
private EmployeeService employeeService;
#RequestMapping(path="/jsonreq", method=RequestMethod.POST, consumes=MediaType.APPLICATION_JSON_VALUE)
public String json(#RequestBody Employee e)
{
System.out.println("JSON_2::");
return "Testing";
}
}
2) Employee Class:
public class Employee {
private int id;
private String name;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Related
Referring to the getting started link below
https://quarkus.io/guides/hibernate-orm-panache
The example uses a Entity class with public attributes.
class Person{
public String name;
}
and used as
person.name = "Synd";
so is it simply a lazy example (!! in official doc ? ) or it means something else.
According to the documentation, it might be related to a single difference (extending PanacheEntityBase)
If you don’t want to bother defining getters/setters for your entities, you can make them extend PanacheEntityBase and Quarkus will generate them for you. You can even extend PanacheEntity and take advantage of the default ID it provides.
Therefore they are making them Public for Quarkus to generate getters/setters for you automatically.
#Entity
public class Person extends PanacheEntity {
public String name;
public LocalDate birth;
public Status status;
public static Person findByName(String name){
return find("name", name).firstResult();
}
public static List<Person> findAlive(){
return list("status", Status.Alive);
}
public static void deleteStefs(){
delete("name", "Stef");
}
}
vs
#Entity
public class Person {
#Id #GeneratedValue private Long id;
private String name;
private LocalDate birth;
private Status status;
public Long getId(){
return id;
}
public void setId(Long id){
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public LocalDate getBirth() {
return birth;
}
public void setBirth(LocalDate birth) {
this.birth = birth;
}
public Status getStatus() {
return status;
}
public void setStatus(Status status) {
this.status = status;
}
}
Spring boot application I can not get data from oracle database it returns []. In postman, it returns other requests e.g home method in controller class returns correctly. also, the table created by model class the problem is getting data from the table.
Here is the postman result:
I get this in console:
Model class
#Entity // This tells Hibernate to make a table out of this class
public class Userr {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Integer id;
private String name;
private String email;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
//Controller Class
#RestController
public class MainController {
#Autowired // This means to get the bean called userRepository
// Which is auto-generated by Spring, we will use it to handle the data
private UserRepository userRepository;
#PostMapping(path="/add") // Map ONLY POST Requests
public #ResponseBody String addNewUser (#RequestParam String name
, #RequestParam String email) {
// #ResponseBody means the returned String is the response, not a view name
// #RequestParam means it is a parameter from the GET or POST request
Userr n = new Userr();
n.setName(name);
n.setEmail(email);
userRepository.save(n);
return "Saved";
}
#GetMapping(path="/all")
public #ResponseBody Iterable<Userr> getAllUsers() {
// This returns a JSON or XML with the users
//
return userRepository.findAll();
}
#GetMapping(path="/al")
public List<Userr> printPersonInfo() {
List<Userr> list = new ArrayList<>();
userRepository.findAll().forEach(list::add);
return list;
}
#RequestMapping("/user")
public String home(){
return "PPPPPP";
}
}
//Repository Class
public interface UserRepository extends CrudRepository<Userr, Integer> {
}
Add #Repository annotation to your UserRepository. It will help with your issue.
I have a simple Model in Java called Member with fields - ID (Primary Key), Name (String), Position (String)
I want to expose an POST endpoint to update fields of a member. This method can accept payload like this
{ "id":1,"name":"Prateek"}
or
{ "id":1,"position":"Head of HR"}
and based on the payload received, I update only that particular field. How can I achieve that with JPARepository?
My repository interface is basic -
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
#Repository("memberRepository")
public interface MemberRepository extends JpaRepository<Member, Integer>{
}
My Member model -
#Entity
#Table(name="members")
public class Member {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name="member_id")
private Integer id;
#Column(name="member_name")
#NotNull
private String name;
#Column(name="member_joining_date")
#NotNull
private Date joiningDate = new Date();
#Enumerated(EnumType.STRING)
#Column(name="member_type",columnDefinition="varchar(255) default 'ORDINARY_MEMBER'")
private MemberType memberType = MemberType.ORDINARY_MEMBER;
public Member(Integer id, String name, Date joiningDate) {
super();
this.id = id;
this.name = name;
this.joiningDate = joiningDate;
this.memberType = MemberType.ORDINARY_MEMBER;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getJoiningDate() {
return joiningDate;
}
public void setJoiningDate(Date joiningDate) {
this.joiningDate = joiningDate;
}
public MemberType getMemberType() {
return memberType;
}
public void setMemberType(MemberType memberType) {
this.memberType = memberType;
}
public Member(String name) {
this.memberType = MemberType.ORDINARY_MEMBER;
this.joiningDate = new Date();
this.name = name;
}
public Member() {
}
}
Something like this should do the trick
public class MemberService {
#Autowired
MemberRepository memberRepository;
public Member updateMember(Member memberFromRest) {
Member memberFromDb = memberRepository.findById(memberFromRest.getid());
//check if memberFromRest has name or position and update that to memberFromDb
memberRepository.save(memberFromDb);
}
}
How to handle exception handling in Spring Boot 1.5.4 without controller class? Currently, I have only entity & repository class as below.
Task.class: (entity)
#Entity
#Table(name = "task")
public class Task implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private long id;
#Length(min = 1)
private String name;
public Task() {
}
public Task(String name) {
this.name = name;
}
public Task(Long id, String name) {
this.name = name;
}
public long getId() {
return id;
}
public String getName(){
return name;
}
}
Repository.class:
public interface TaskRepository extends PagingAndSortingRepository<Task, Long> {
}
POST method: return 200 ok
http://localhost:8080/tasks
{
"name" : "test"
}
But,
{
"name" : ""
}
returns 500 , instead of 400 error.
Pls let me know, if any way to handle this exception without a controller class.
You could use a global #ExceptionHandler with the #ControllerAdvice annotation. Basically, you define which Exception to handle with #ExceptionHandler within the class with #ControllerAdvice annotation, and then you implement what you want to do when that exception is thrown.
Like this:
#ControllerAdvice(basePackageClasses = RepositoryRestExceptionHandler.class)
public class GlobalExceptionHandler {
#ExceptionHandler({ValidationException.class, JsonParseException.class})
public ResponseEntity<Map<String, String>> yourExceptionHandler(Exception e) {
Map<String, String> response = new HashMap<String, String>();
response.put("message", "Bad Request");
return new ResponseEntity<Map<String, String>>(response, HttpStatus.BAD_REQUEST);
}
}
See also: http://www.ekiras.com/2016/02/how-to-do-exception-handling-in-springboot-rest-application.html
the user entity
import javax.persistence.*;
#Entity
public class User {
#Id
#GeneratedValue
private Long id;
#Column(nullable = false)
private String name;
#Column(nullable = false)
private Integer age;
#Embedded
private Address address;
public User(){}
public User(String name, Integer age,Address address) {
this.name = name;
this.age = age;
this.address = address;
}
public User(String name, Integer age) {
this.name = name;
this.age = age;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
and the address entity
#JsonInclude(JsonInclude.Include.NON_NULL)
#Embeddable
public class Address {
private String city;
public Address() {
}
public Address( String city) {
this.city = city;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
}
the controller code
#ResponseStatus(HttpStatus.CREATED)
#RequestMapping(value = "users", method = RequestMethod.POST)
public void users(#RequestBody List<User> users) {
this.userRepository.save(users);
}
when i post json data with psot man, the data is
[
{
"name":"yaohao",
"age":11,
"address":{
"city":"nantong"
}
},
{
"name":"yh",
"age":11,
"address":{
"city":"nantong"
}
}
]
the address always null
when the user entity has no #Embedded address entity，the code works fine，so how can i post json data to controller when i use #Embedded annotations
It has nothing to do with the use of #Embedded. When doing the marshaling Jackson uses Java Bean properties to set the values and as your User class is lacking a getAddress and setAddress Jackson simply ignores it because it doesn't exists.
To fix add the getter and setter for Address.
Or instead of using property access switch your mapper to use field access. See how to specify jackson to only use fields - preferably globally for more information on that.