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Spring Validator validate method never called

I have two close to each other controllers - one for products and one for users.
I'd like to add Spring Validation to both controllers.
So I added ProductValidator and UserValidator classes which implement Validator.
ProductValidator works fine.
The problem is UserValidator is never called.
InitBinder method is being called, but validation doesn't work.
At the same time everything works fine with products in ProductController.
Here's the code of user logic.
UserController
#Controller
#RequestMapping(path = "/users")
public class UserController {
private final UserService userService;
private final RoleService roleService;
private PasswordEncoder passwordEncoder;
#Autowired
public UserController(UserService userService, RoleService roleService, PasswordEncoder passwordEncoder) {
this.userService = userService;
this.roleService = roleService;
this.passwordEncoder = passwordEncoder;
}
#Autowired
#Qualifier("userValidator")
private UserValidator userValidator;
#InitBinder("user")
private void initBinder(WebDataBinder binder) {
binder.setValidator(userValidator);
binder.registerCustomEditor(Role.class, "roles", new RoleEditor(roleService));
}
...
#RequestMapping(path = "/save", method = RequestMethod.POST)
public ModelAndView submit(#ModelAttribute("user") #Valid User user,
BindingResult result) {
...
}
...
}
UserValidator
#Component("userValidator")
public class UserValidator implements Validator {
private final UserRepository userRepository;
private final RoleRepository roleRepository;
#Autowired
public UserValidator(UserRepository userRepository, RoleRepository roleRepository) {
this.userRepository = userRepository;
this.roleRepository = roleRepository;
}
#Override
public boolean supports(Class<?> paramClass) {
return User.class.equals(paramClass);
}
#Override
public void validate(Object obj, Errors errors) {
User user = (User) obj;
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "username", "username.required", "Enter username");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "firstName", "firstName.required", "Enter user first name");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "lastName", "lastName.required", "Enter user last name");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password", "password.required", "Enter user password");
User userToFind = userRepository.findByUsername(user.getUsername()).orElse(new User());
if (Objects.isNull(user.getId()) && Objects.nonNull(userToFind.getId())) {
errors.rejectValue("username", "username.already.exist", "user with this username already exists");
}
if (Objects.isNull(user.getRoles())) {
errors.rejectValue("roles", "role.required", "role must be assigned");
}
Role adminRole = roleRepository.getAdminRole();
if (Objects.nonNull(user.getId())
&& Objects.nonNull(user.getRoles())
&& !user.getRoles().contains(adminRole)
&& userRepository.findUsersWithAdministratorRole().size() == 1) {
errors.rejectValue("roles", "admin.required", "at least one admin role must exist");
}
}
public ErrorMessage validateUserToDelete(UUID id) {
ErrorMessage errorMessage = new ErrorMessage();
List<String> errors = new ArrayList<>();
Set<User> admins = userRepository.findUsersWithAdministratorRole();
if (admins.size() == 1) {
errors.add(String.format("User with email %s is the one with Admin role. Impossible to delete last Admin user."
, userRepository.findById(id).get().getUsername()));
}
errorMessage.setErrors(errors);
return errorMessage;
}
}
User
#Entity
#Table(name = "users")
public class User {
private UUID id;
private String username;
private String password;
private String firstName;
private String lastName;
private BigDecimal money;
private Set<Role> roles;
private Set<Product> products;
#Id
#Type(type="org.hibernate.type.PostgresUUIDType")
#Column(name = "id", columnDefinition = "uuid")
#GeneratedValue(strategy = GenerationType.AUTO)
public UUID getId() {
return id;
}
public void setId(UUID id) {
this.id = id;
}
#Column(name = "username")
#NotEmpty
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
#Column(name = "password")
#NotEmpty
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
#Column(name = "first_name")
#NotEmpty
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
#Column(name = "last_name")
#NotEmpty
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
#Column(name = "money")
#DecimalMin(value = "0.0", inclusive = false)
#Digits(integer = 10, fraction = 2)
public BigDecimal getMoney() {
return money;
}
public void setMoney(BigDecimal money) {
this.money = money;
}
#ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.MERGE, CascadeType.REFRESH})
#JoinTable(
name = "users_roles",
joinColumns = { #JoinColumn(name = "user_id") },
inverseJoinColumns = { #JoinColumn(name = "role_id") }
)
#NotNull
public Set<Role> getRoles() {
return roles;
}
public void setRoles(Set<Role> roles) {
this.roles = roles;
}
#ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.MERGE, CascadeType.REFRESH})
#JoinTable(
name = "checkout",
joinColumns = { #JoinColumn(name = "user_id") },
inverseJoinColumns = { #JoinColumn(name = "product_id") }
)
public Set<Product> getProducts() {
return products;
}
public void setProducts(Set<Product> products) {
this.products = products;
}
#Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
User user = (User) o;
return id.equals(user.id) && username.equals(user.username) && password.equals(user.password) && firstName.equals(user.firstName) && lastName.equals(user.lastName);
}
#Override
public int hashCode() {
return Objects.hash(id, username, password, firstName, lastName);
}
}
user.jsp
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%# taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%# taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%# taglib prefix="security" uri="http://www.springframework.org/security/tags" %>
<%# page contentType="text/html;charset=UTF-8" language="java" %>
<c:set var="contextPath" value="${pageContext.request.contextPath}"/>
<!DOCTYPE html>
<html>
<head>
<c:import url="${contextPath}/WEB-INF/jsp/header.jsp"/>
</head>
<body>
<c:import url="${contextPath}/WEB-INF/jsp/navibar.jsp"/>
<div class="container">
<div class="row">
<security:authorize access="hasRole('ROLE_ADMIN')">
<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
<div class="btn-group me-2" role="group" aria-label="Second group">
Back to users
</div>
</div>
</security:authorize>
</div><br>
<form:form action="/users/save" method="post" modelAttribute="user">
<div class="form-group">
<div class="row">
<form:label path="id">User ID:</form:label><br>
<form:input path="id" type="UUID" readonly="true" class="form-control" id="id" placeholder="User ID" name="id" value="${user.id}"/>
<br>
<form:label path="username">username (email address):</form:label><br>
<form:input path="username" type="text" class="form-control" id="username" placeholder="Enter username" name="username" value="${user.username}"/>
<form:errors path="username" cssClass="error"/>
<br>
<form:label path="password">Password:</form:label><br>
<form:input path="password" type="text" class="form-control" id="password" placeholder="Enter password" name="password" value="${user.password}"/>
<form:errors path="password" cssClass="error"/>
<br>
<form:label path="firstName">First name:</form:label><br>
<form:input path="firstName" type="text" class="form-control" id="firstName" placeholder="Enter first name" name="firstName" value="${user.firstName}"/>
<form:errors path="firstName" cssClass="error"/>
<br>
<form:label path="lastName">First name:</form:label><br>
<form:input path="lastName" type="text" class="form-control" id="lastName" placeholder="Enter last name" name="lastName" value="${user.lastName}"/>
<form:errors path="lastName" cssClass="error"/>
<br>
<form:label path="money">Money:</form:label><br>
<form:input path="money" type="number" class="form-control" id="money" placeholder="Enter money" name="money" value="${user.money}"/>
<form:errors path="money" cssClass="error"/>
<br>
<security:authorize access="hasRole('ROLE_ADMIN')">
<form:label path="roles">Roles:</form:label><br>
<c:forEach items="${roles}" var="role">
<form:checkbox path="roles" id="${roles}" label="${role.name}" value="${role}"/></td>
</c:forEach>
<br>
<form:errors path="roles" cssClass="error"/><br><br>
</security:authorize>
</div>
<div class="row">
<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
<div class="btn-group me-2" role="group" aria-label="Second group">
<form:button type="submit" value="Submit" class="btn btn-primary">Save</form:button>
</div>
</div>
</div>
</div>
</form:form>
</div>
</body>
</html>

If you look at the classname from your debugger com.intellias.testmarketplace.controller.UserController$$EnhancerBySpringCGLIB$$309171b7 you see the $$EnhancerBySpringCGLIB. That part indicates that a proxy is being generated by Spring. A proxy can be generated for various reasons but the most common one for controllers is security, the #PreAuthorize annotation comes to mind. Another option is the #Timed annotation to do monitoring on the controller.
As your initBinder method is private this will be invoked directly on the proxy and not on the actual bean instance. This is due to a class proxy being created, which works by extending your class. A method is being generated with the same signature and the interceptor is invoked and then the call is passed on to the actual method. However this will only work for public and protected methods not for private or final methods. Those will be directly invoked on the empty proxy (the fields are null as that doesn't need the dependencies).
As your method is private it is invoked on the proxy. The proxy doesn't have the fields set, so the userValidator is null. So effectivly there is no Validator being set on the WebDataBinder and thus no validation will and can be done.
To fix, make the method public (or protected) so that it will properly be called on the actual bean and not the proxy.
For the future and as a rule of thumb you probably want your methods with annotations in a controller to be public anyway instead of `private.

The issue was in private access modifier for initBinder method combined with #PreAuthorize annotation on some UserController methods.
Many thanks to #M.Deinum for patience and help.

Cant upload photos and store them as blob to mysql

I am trying to upload a photo with html and store it as a blob using Spring JPA
this is my ORM class.
#Entity(name = "Option")
#Table(name = "options")
public class Option {
#Id
#GeneratedValue(
strategy = GenerationType.IDENTITY
)
#Column(
name = "id",
unique = true,
updatable = false
)
private Long id;
#Column(
name = "img_name",
nullable = false,
columnDefinition = "TEXT"
)
private String imgName;
#Column(
name = "img_description",
nullable = false,
columnDefinition = "TEXT"
)
private String imgDesc;
#Lob()
#Column(
name="img_src",
columnDefinition = "bytea"
)
private byte[] imgSrc;
public Option(String imgName, String imgDesc) {
this.imgName=imgName;
this.imgDesc=imgDesc;
}
public Option() {
}
public byte[] getImgSrc() {
return imgSrc;
}
public void setImgSrc(byte[] imgDesc_i) {
this.imgSrc = imgDesc_i;
}
public String getImgName() {
return imgName;
}
public void setImgName(String imgName) {
this.imgName = imgName;
}
public String getImgDesc() {
return imgDesc;
}
public void setImgDesc(String imgDesc) {
this.imgDesc = imgDesc;
}
#Override
public String toString() {
return "Option{" +
"id=" + id +
", imgName='" + imgName + '\'' +
", imgDesc='" + imgDesc + '\'' +
'}';
}
public Option(Long id, String imgName, String imgDesc) {
this.id = id;
this.imgName = imgName;
this.imgDesc = imgDesc;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
and here is my form
<form action="#" th:action="#{/add}" th:object="${option}" method="post">
<div class="modal-body">
<div class="form-group">
<input type="hidden" th:field="*{id}" class="form-control" required>
</div>
<div class="form-group">
<label>Description</label>
<input type="text" th:field="*{imgDesc}" class="form-control" required>
</div>
<div class="form-group">
<label>Image name</label>
<input type="text" th:field="*{imgName}" class="form-control" required>
</div>
<div class="form-group">
<label class="form-label" >Upload image</label>
<input th:field="*{imgSrc}" type="file" class="form-control" />
</div>
</div>
<div class="modal-footer">
Cancel
<input type="submit" class="btn btn-success" value="Save">
</div>
</form>
and this is my controller
#PostMapping("/add")
public String addOption(#ModelAttribute("option") Option option) {
optionService.save(option);
return "redirect:/admin";
}
The problem is that I keep img src in Option class as array of bytes.
at MySQL dbms shows that type of imgSrc is blob
so when I am trying to save using jpa repository, it just saves image name.
could someone help me to solve issue?
thank You

Add an object using SpringBoot and Thymeleaf

I am building an event website using Springboot and I am trying to make the new_event page where you should create a new event. But aftetr completing the form and click the button "Add Event", there is nothing happening. What is the issue?
new_event HTML is:
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org"
xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
layout:decorate="~{layouts/default}">
<head>
<title>Create event</title>
</head>
<body>
<div layout:fragment="content">
<h1>Create a new event</h1>
<p> Complete the following fields to add an event . * - required field </p>
<form action="#" th:action="#{/events}" th:object="${events}" method="post">
<div class="form-group" th:classappend="${#fields.hasErrors('name')}? has-error">
<label for="name">Name *:</label>
<input class="form-control" type="text" th:field="*{name}" name="name" id="name" placeholder="Max 250 chars" autofocus="autofocus" required/>
<p class="text-danger" th:if="${#fields.hasErrors('name')}" th:errors="*{name}">errors</p>
<label for="ev_venue">Venue *:</label>
<input class="form-control" type="text" th:field="*{venue}" name="ev_venue" id="ev_venue" autofocus="autofocus" />
<label for="ev_date">Date *:</label>
<input class="form-control" type="date" th:field="*{date}" name="ev_date" id="ev_date" autofocus="autofocus" />
<label for="ev_time">Time :</label>
<input class="form-control" type="time" th:field="*{time}" name="ev_time" id="ev_time" autofocus="autofocus" />
<label for="ev_descr">Description :</label>
<input class="form-control" type="text" th:field="*{description}" name="ev_descr" id="ev_descr" placeholder="Max 500 chars" autofocus="autofocus" />
</div>
</form>
<button class="btn btn-primary" type="submit"><i class="fas fa-plus" aria-hidden="true"></i> Add Event</button>
<a class="btn btn-warning" role="button" href="/events"><i class="fas fa-ban" aria-hidden="true"></i> Cancel</a>
</form>
</div>
</body>
</html>
Event Controller is :
#Controller
#RequestMapping(value = "/events", produces = { MediaType.TEXT_HTML_VALUE })
public class EventsController {
#Autowired
private EventService eventService;
#GetMapping("/new_event")
public String newEvent(Model model) {
if (!model.containsAttribute("events")) {
model.addAttribute("events", new Event());
}
return "events/new_event";
}
#PostMapping(consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
public String createEvent(#RequestBody #Valid #ModelAttribute Event event, BindingResult errors,
Model model, RedirectAttributes redirectAttrs) {
if (errors.hasErrors()) {
model.addAttribute("events", event);
return "events/new_event";
}
eventService.save(event);
redirectAttrs.addFlashAttribute("ok_message", "New event added.");
return "redirect:/events";
}
}
EventController API is:
#RestController
#RequestMapping(value = "/api/events", produces = { MediaType.APPLICATION_JSON_VALUE, MediaTypes.HAL_JSON_VALUE })
public class EventsControllerApi {
private static final String NOT_FOUND_MSG = "{ \"error\": \"%s\", \"id\": %d }";
#Autowired
private EventService eventService;
#Autowired
private EventModelAssembler eventAssembler;
#GetMapping("/new_event")
public ResponseEntity<?> newEvent() {
return ResponseEntity.status(HttpStatus.NOT_ACCEPTABLE).build();
}
#PostMapping(consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> createEvent(#RequestBody #Valid Event event, BindingResult result) {
if (result.hasErrors()) {
return ResponseEntity.unprocessableEntity().build();
}
Event newEvent = eventService.save(event);
EntityModel<Event> entity = eventAssembler.toModel(newEvent);
return ResponseEntity.created(entity.getRequiredLink(IanaLinkRelations.SELF).toUri()).build();
}
}
And the Event class:
#Entity
#Table(name = "events")
public class Event {
#Id
private long id;
#JsonFormat(shape = JsonFormat.Shape.STRING)
#DateTimeFormat(pattern = "yyyy-MM-dd")
private LocalDate date;
#JsonFormat(shape = JsonFormat.Shape.STRING)
#DateTimeFormat(pattern = "HH:mm")
private LocalTime time;
#Persistent
#NotEmpty(message = "The event must have a name.")
#Size(max = 250, message = "The name of the event must have 250 characters or less.")
private String name;
#ManyToOne
#Persistent
private Venue venue;
private String description;
public Event() {
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public LocalDate getDate() {
return date;
}
public void setDate(LocalDate date) {
this.date = date;
}
public LocalTime getTime() {
return time;
}
public void setTime(LocalTime time) {
this.time = time;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Venue getVenue() {
return venue;
}
public void setVenue(Venue venue) {
this.venue = venue;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}

HTTP Status 400 – Bad Request - Spring MVC

i've got this error on my project.
HTTP Status 400 – Bad Request.
The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).
InsertClient.jsp
<form:form action="/moldar/saveCliente/" method="POST" modelAttribute="cliente">
<div class="form-group">
<label for="exampleSelect1">Pais</label>
<form:select path="pais" class="form-control" id="pais" name="wwww">
<c:forEach var="lista" items="${listaPaises}">
<option value="${lista.id}">${lista.nome}</option>
</c:forEach>
</form:select>
</div>
<div class="form-group">
<label for="exampleSelect1">Estado</label>
<form:select path="estado" class="form-control" id="estado" name="qqqqq">
<option value="">Selecione um estado</option>
<c:forEach var="lista" items="${listaEstados}">
<option value="${lista.id}">${lista.nome}</option>
</c:forEach>
</form:select>
</div>
<div class="form-group">
<label for="exampleSelect1">Cidade</label>
<form:select path="cidade" class="form-control" id="cidade" name="batata">
<option value="null">Selecione uma cidade</option>
<c:forEach var="lista" items="${listaCidades}">
<option value="${lista.id}">${lista.nome}</option>
</c:forEach>
</form:select>
</div>
My Controllers
#RequestMapping(value = "/saveCliente", method = RequestMethod.POST)
public String adicionarCliente(#ModelAttribute("cliente") Cliente cliente) {
clienteDao.saveOrUpdate(cliente);
return "redirect:/clientes";
}
#RequestMapping(value = "/addCliente", method = RequestMethod.GET, headers = "Accept=application/json")
public String inserirCliente(Model model) {
List<Estado> listaEstados = estadoDao.list(null);
List<Cidade> listaCidades = cidadeDao.list(null);
List<Pais> listaPaises = paisDao.list(null);
model.addAttribute("listaPaises", listaPaises);
model.addAttribute("listaEstados", listaEstados);
model.addAttribute("pais", new Pais());
model.addAttribute("cliente", new Cliente());
model.addAttribute("estado", new Estado());
model.addAttribute("cidade", new Cidade());
model.addAttribute("listaCidades", listaCidades);
return "inserirCliente";
}
Model
#Entity
#Table (name= "clientes")
public class Cliente {
#Id
#GeneratedValue (strategy = GenerationType.IDENTITY)
#Column
private Integer id;
#Column
private String nome;
#Column
private String cpf;
#OneToOne
#JoinColumn (name="pais")
private Pais pais;
#OneToOne
#JoinColumn (name="estado")
private Estado estado;
#OneToOne
#JoinColumn (name="cidade")
private Cidade cidade;
#Column
private String logradouro;
#Column
private String numero;
#Column
private String cep;
#Column
private String email;
I have trying everything.
Can someone help me ? Please ?

In your Contoller this line of code
public String adicionarCliente(#ModelAttribute("cliente") Cliente cliente)
In your Cliente class the variables like pais
<form:select path="pais" class="form-control" id="pais" name="wwww">
you cannot bind this path="pais" to Cliente class variable pais , Because pais is not a String Type it is an Object type.
You can Create another class to Bind the input Selection Options to the variables.
class Client {
private String pais;
private String estado;
private String cidade;
public String getPais() {
return pais;
}
public void setPais(String pais) {
this.pais = pais;
}
public String getEstado() {
return estado;
}
public void setEstado(String estado) {
this.estado = estado;
}
public String getCidade() {
return cidade;
}
public void setCidade(String cidade) {
this.cidade = cidade;
}
}

JSON sent over AJAX to Spring+Hibernate based application does not get persisted

I am sending JSON object to a Spring+Hibernate+MySQL application.
Bellow is index.html where you can see the javascript making the request. Then there is Customer.java entity and CustomerRestController.java responsible for the request processing. Somehow my database is not getting updated.
<!DOCTYPE html>
<html lang="en">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('#btnBooking').click(function(){
var custName=$('#userName').val();
var custAddress=$('#address1').val();
var JSONObject= {"name":custName, "address":custAddress};
//var jsonData = JSON.stringify( JSONObject );
$.ajax({
type: "POST",
url: "http://192.168.1.12:8080/HomeServiceProvider/rest/customer/saveCustomer",
data: JSON.stringify( JSONObject ),
dataType: "json",
processData: true,
contentType: "application/json; charset=utf-8",
success: function(data, status, jqXHR){
alert("success..."+data);
},
error: function(xhr){
alert("error"+xhr.responseText);
}
});
});
});
</script>
</head>
<body>
<form class="form-horizontal" id="scheduleLaterForm" name="scheduleLaterForm" action="#" method="post">
<div class="col-lg-8">
<div class="form-group">
<label class="col-lg-3 control-label">Name:<font style="color: red;">*</font></label>
<div class="col-lg-9">
<input class="form-control" id="userName" name="userName" placeholder="Full Name" value="" type="text">
</div>
</div>
<div class="form-group">
<label class="col-lg-3 control-label">Address:<font style="color: red;">*</font></label>
<div class="col-lg-9">
<input class="form-control" name="address1" id="address1" placeholder="Full address" value="" type="text">
</div>
</div>
<div class="form-group marg-bot-45">
<label class="col-lg-3 control-label"></label>
<div class="col-lg-9">
<button type="button" class="btn btn-info" id="btnBooking"> Confirm Booking </button>
</div>
</div>
</div>
</form>
</body>
</html>
Customer.java
#Entity
#Table(name="CUSTOMER")
public class Customer implements Serializable{
private static final long serialVersionUID = -82689141527424144L;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column (name="CUST_ID")
private int custId;
#Column (name="NAME")
private String name;
#Column (name="ADDRESS")
private String address;
public int getCustId() {
return custId;
}
public void setCustId(int custId) {
this.custId = custId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
CustomerRestController.java
#RestController
#RequestMapping("/customer")
public class CustomerRestController {
private static Logger log = LogManager.getLogger(CustomerRestController.class);
#Value("${msg.customeradded}")
private String message;
#Value("${msg.successcode}")
private int code;
#Autowired
private CustomerService customerService;
#RequestMapping(value = "/saveCustomer", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
public #ResponseBody Status saveCustomer(#RequestBody Customer customer){
try {
customerService.saveCustomer(customer);
return new Status(code, message);
} catch (Exception e) {
return new Status(0, e.toString());
}
}
#RequestMapping(value="/getAllCustomer",method=RequestMethod.GET, headers="Accept=application/json")
public #ResponseBody List<Customer> getAllCustomer(){
List<Customer> customers = null;
try {
customers = customerService.getAllCustomer();
log.info("Size:"+customers.size());
log.info("customers:"+customers);
} catch(Exception e) {
e.printStackTrace();
}
return customers;
}
}
CustomerService.java
public interface CustomerService {
public void saveCustomer(Customer customer);
public List<Customer> getAllCustomer();
}
CustomerServiceImpl.java
#Service
public class CustomerServiceImpl implements CustomerService {
private static Logger log = LogManager.getLogger(CustomerServiceImpl.class);
#Autowired
private CustomerDao customerDao;
public void saveCustomer(Customer customer) {
log.info("customer first name:" + customer.getCustName());
customerDao.saveCustomer(customer);
}
public List<Customer> getAllCustomer() {
List<Customer> customers = customerDao.getAllCustomer();
log.info("Size:"+customers.size());
log.info("customers:"+customers);
return customers;
}
}
Name of My table is CUSTOMER and columns are
colomn1: CUST_ID
colomn2: NAME
colomn3: ADDRESS