I would like to get the value of my database with the getter getName().
First, I have created User.java:
package ch.concertopro.webshopanalyser.entity;
import javax.persistence.*;
#Entity(name = "users")
public class User {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private int id;
private String name;
#Column(unique = true, nullable = false)
private String email;
private String dob;
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;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getDob() {
return dob;
}
public void setDob(String dob) {
this.dob = dob;
}
}
Then I have created UserRepository.java:
package ch.concertopro.webshopanalyser.repository;
import ch.concertopro.webshopanalyser.entity.User;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
#Repository
public interface UserRepository extends CrudRepository<User, Integer> {
}
And this is my service where I try to get the value of getName():
package ch.concertopro.webshopanalyser.service;
import ch.concertopro.webshopanalyser.entity.User;
import ch.concertopro.webshopanalyser.repository.UserRepository;
import org.springframework.stereotype.Service;
#Service
public class UserService {
final UserRepository userRepository;
public UserService(UserRepository userRepository) {
this.userRepository = userRepository;
}
public Iterable<User> getUser() {
return userRepository.findById(1).getName();
}
}
But I get the error Cannot resolve method 'getName' in 'Optional'. Why?
For your purpose you should change your method implementation like:
public Optional<String> getUser() {
return userRepository.findById(1)
.map(User::getName);
}
Related
Repository
*As I am trying to enter details of user but i am getting bean Exception i don't what i have missed
from repository interface i have implements JPA and i triad with crud as well . I dint mention any controller class yet
public interface UserRepository extends JpaRepository<User,Long> {
public User findByName(String username);
}
UserModel
#Entity
#Table(name = "users")
public class User {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String username;
private String email;
private Date DOB;
private String Address;
public User() {
}
public User(Long id, String username, String email, Date DOB, String address) {
this.id = id;
this.username = username;
this.email = email;
this.DOB = DOB;
Address = address;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Date getDOB() {
return DOB;
}
public void setDOB(Date DOB) {
this.DOB = DOB;
}
public String getAddress() {
return Address;
}
public void setAddress(String address) {
Address = address;
}
}
UserService
Userservice i have given
public interface UserService {
//Creating User
public User CreateUser(User user) throws Exception;
}
ServiceImp
public class UserServiceImp implements UserService {
#Autowired
private UserRepository userData;
//Creating user
#Override
public User CreateUser(User user) throws Exception {
User local=this.userData.findByName(user.getUsername());
if(local!=null)
{
System.out.println("User is already present!!");
throw new Exception("User is already there");
}
else {
local=this.userData.save(user);
}
return local;
}
}
Main Class
This is the main class
#SpringBootApplication
public class UserInformationApplication implements CommandLineRunner {
public static void main(String[] args) {
SpringApplication.run(UserInformationApplication.class, args);
}
#Override
public void run(String... args) throws Exception {
System.out.println("starting Application");
}
}
Changing this
Use for Spring Version 2.x :
import javax.persistence.*;
to
Use for Spring Version 3.x :
import jakarta.persistence.*;
Worked for me
I am trying out some new design patterns in java but I am getting confused as to why mine will not work.
I am aiming to pass a user account into a data transfer object which can then be used to sign up a new user by checking if they exist or not and if not using the getters and setters to make a user and save it to a mongoDB database with a mapper.
It all seems to be going well until I get a unresolved method call on the setpassword in my service implementation and in my mapper and I do not know why.
I am getting my setFirstname by extending a base user in my useraccount which has a firstname field on it.
Any help would be great :)
package com.datingapp.model.user;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
#Document(collection = "userAccounts")
public class UserAccount extends User {
#Id
private String id;
private String email;
private String password;
private String lastname;
private String phoneNumber;
public UserAccount() {}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPhoneNumber() {
return phoneNumber;
}
public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
}
package com.datingapp.dto.model.user;
import com.datingapp.model.user.User;
import com.datingapp.model.user.UserAccount;
public class UserAccountDto extends User {
private String email;
private String lastname;
private String password;
private String phoneNumber;
public UserAccountDto() {
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getPhoneNumber() {
return phoneNumber;
}
public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
}
package com.datingapp.dto.mapper;
import com.datingapp.dto.model.user.UserAccountDto;
import com.datingapp.model.user.UserAccount;
import org.springframework.stereotype.Component;
#Component
public class UserAccountMapper {
public static UserAccountDto toUserAccountDto(UserAccount userAccount) {
return new UserAccountDto()
.setEmail(userAccount.getEmail())
.setFirstname(userAccount.getFirstname())
.setLastname(userAccount.getLastname())
.setPassword(userAccount.getPassword())
.setPhoneNumber(userAccount.getPhoneNumber());
}
}
package com.datingapp.service.user;
import com.datingapp.dto.mapper.UserAccountMapper;
import com.datingapp.dto.model.user.UserAccountDto;
import com.datingapp.model.user.UserAccount;
import com.datingapp.repository.user.UserAccountRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Component;
#Component
public class UserAccountImpl implements UserAccountService {
private UserAccountRepository userAccountRepository;
private BCryptPasswordEncoder bCryptPasswordEncoder;
#Autowired
public UserAccountImpl(UserAccountRepository userAccountRepository, BCryptPasswordEncoder bCryptPasswordEncoder) {
this.userAccountRepository = userAccountRepository;
this.bCryptPasswordEncoder = bCryptPasswordEncoder;
}
#Override
public UserAccountDto signup(UserAccountDto userDto) {
UserAccount user = userAccountRepository.findByEmail(userDto.getEmail());
if (user == null) {
user = new UserAccount()
.setEmail(userDto.getEmail())
.setPassword(bCryptPasswordEncoder.encode(userDto.getPassword()))
.setFirstName(userDto.getFirstname())
.setLastName(userDto.getFirstname())
.setMobileNumber(userDto.getPhoneNumber());
return UserAccountMapper.toUserAccountDto(userAccountRepository.save(user));
}
}
}
package com.datingapp.service.user;
import com.datingapp.dto.model.user.UserAccountDto;
import com.datingapp.model.user.UserAccount;
public interface UserAccountService {
UserAccountDto signup(UserAccountDto userAccountDto);
}
Your setters are void methods, that is to say they return nothing.
You will have your expected result by making a setter like :
public UserAccountDto setEmail(String email) {
this.email = email;
return this ;
}
You have to add return this in your setters.
I know Pythagus already answered your question, but let me give you a tip.
Try to use Lombok. Lombok is a java lib which helps you to avoid boilerplate code. For example, with the #Data annotation, you are telling Lombok to create, under the hood, all your getters and setters. It will help you a lot.
I'm trying to save a new user to Neo4j using spring-boot, I'm getting the error that cannot set java.lang.Long to my User domain. Tried a lot of ways but still no luck on this. Can anyone tell me what I'm doing wrong here?
package com.abc.userservice.domains;
import org.neo4j.ogm.annotation.GeneratedValue;
import org.neo4j.ogm.annotation.NodeEntity;
import org.springframework.data.annotation.Id;
#NodeEntity
public class User {
#Id
#GeneratedValue
private Long id;
private String fullName;
private String gender;
private String email;
private String password;
private String createdOn;
public User(){}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFullName() {
return fullName;
}
public void setFullName(String fullName) {
this.fullName = fullName;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getCreatedOn() {
return createdOn;
}
public void setCreatedOn(String createdOn) {
this.createdOn = createdOn;
}
}
This is my service code
public User createUser(User entity) {
return userRepository.save(entity);
}
This is my controller code
#RequestMapping(value = "/create", method = RequestMethod.POST)
public User createUser(User user) {
return userService.createUser(user);
}
This is my main application code
#SpringBootApplication
#EnableNeo4jRepositories("com.abc.userservice.repositories")
#ComponentScan(basePackages = "com.abc")
#EnableTransactionManagement
public class UserServiceApplication {
public static void main(String[] args) {
SpringApplication.run(UserServiceApplication.class, args);
}
}
When I'm trying to save a new user I'm getting this below error:
Can not set java.lang.Long field com.abc.userservice.domains.User.id to com.abc.userservice.domains.User
MySQL DB Table :
Classes are as follows: The issue is how to handle the object in crud repository as there is no such existing function there. So how to override an existing one.
#RequestMapping(value = "/find", method = RequestMethod.POST)
#ResponseBody
public User getUser(#RequestBody UserFormDto userForm) {
Holder h = new Holder();
h.setName(userForm.getName());
h.setEmail(userForm.getEmail());
return userRepository.findOne(h);//holder);
}
package hello;
public class Holder {
private String name;
private String email;
public class Holder {
private String name;
private String email;
public Holder(){
}
public Holder(String name, String email) {
super();
this.name = name;
this.email = email;
}
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;
}}
UserFormDto to pass data to Holder.
package hello;
import javax.validation.constraints.Min;
import javax.validation.constraints.Pattern;
import org.hibernate.validator.constraints.NotBlank;
import org.hibernate.validator.constraints.NotEmpty;
public class UserFormDto {
private String name;
private String email;
public UserFormDto(String name, String email) {
super();
this.name = name;
this.email = email;
}
public UserFormDto() {
super();
// TODO Auto-generated constructor stub
}
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;
}}
package hello;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
public interface UserRepository extends CrudRepository<User, Long> {
// User findOne(Holder h);}
Now How should I work with crudRepository? Any help will be much appreciated.
Spring Data supports automatic query building based on the method name in CrudRepository (see Query Creation )
Add a findByIdAndEmail method to it , and it should work (note that I don't see the point of searching on the id plus another field at the same time, except if your id is not the PK ):
public interface UserRepository extends CrudRepository<User, Long> {
List<User> findByIdAndEmail(Long id, String email);
}
I have spring application everytime I run and I try to login I got the following excpetion after login
java.lang.IllegalStateException: Entity manager has not been injected (is the Spring Aspects JAR configured as an AJC/AJDT aspects library?)
at com.emc.fleet.domain.User_Roo_Jpa_ActiveRecord.ajc$interMethod$com_emc_fleet_domain_User_Roo_Jpa_ActiveRecord$com_emc_fleet_domain_User$entityManager(User_Roo_Jpa_ActiveRecord.aj:19)
at com.emc.fleet.domain.User.entityManager(User.java:1)
at com.emc.fleet.domain.User_Roo_Jpa_ActiveRecord.ajc$interMethodDispatch1$com_emc_fleet_domain_User_Roo_Jpa_ActiveRecord$com_emc_fleet_domain_User$entityManager(User_Roo_Jpa_ActiveRecord.aj)
at com.emc.fleet.domain.User_Roo_Finder.ajc$interMethod$com_emc_fleet_domain_User_Roo_Finder$com_emc_fleet_domain_User$findUsersByUserIdEquals(User_Roo_Finder.aj:47)
at com.emc.fleet.domain.User.findUsersByUserIdEquals(User.java:1)
I have read many STO questions and checked all answers none of them succeded
this is my user class
package com.emc.fleet.domain
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Transient;
import javax.validation.constraints.NotNull;
import org.hibernate.validator.constraints.Email;
import org.hibernate.validator.constraints.NotEmpty;
import org.springframework.roo.addon.javabean.RooJavaBean;
import org.springframework.roo.addon.jpa.activerecord.RooJpaActiveRecord;
import org.springframework.roo.addon.tostring.RooToString;
#RooJavaBean
#RooToString
#RooJpaActiveRecord(finders = { "findUsersByEmailLike", "findUsersByUserIdEquals", "findUsersByCostCenter", "findUsersByDepartmet" })
public class User {
#Id
#GeneratedValue
private Long id;
#NotEmpty
#NotNull
private String firstName;
#NotEmpty
#NotNull
private String lastName;
#NotNull
private Long userId;
#Email
#NotNull
private String email;
#NotNull
private String address;
#NotNull
private String district;
private String deskPhone;
#NotEmpty
#NotNull
private String mobile;
#NotEmpty
#NotNull
private String password;
#Transient
private String retypePassword;
#OneToOne
private Department departmet;
#OneToOne
#JoinColumn(name = "cost_center")
private CostCenter costCenter;
private String managerName;
private boolean enabled = true;
#Enumerated(EnumType.STRING)
private Roles role = Roles.ROLE_USER;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Long getUserId() {
return userId;
}
public void setUserId(Long userId) {
this.userId = userId;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getDistrict() {
return district;
}
public void setDistrict(String district) {
this.district = district;
}
public String getDeskPhone() {
return deskPhone;
}
public void setDeskPhone(String deskPhone) {
this.deskPhone = deskPhone;
}
public String getMobile() {
return mobile;
}
public void setMobile(String mobile) {
this.mobile = mobile;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRetypePassword() {
return retypePassword;
}
public void setRetypePassword(String retypePassword) {
this.retypePassword = retypePassword;
}
public Department getDepartmet() {
return departmet;
}
public void setDepartmet(Department departmet) {
this.departmet = departmet;
}
public CostCenter getCostCenter() {
return costCenter;
}
public void setCostCenter(CostCenter costCenter) {
this.costCenter = costCenter;
}
public String getManagerName() {
return managerName;
}
public void setManagerName(String managerName) {
this.managerName = managerName;
}
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public Roles getRole() {
return role;
}
public void setRole(Roles role) {
this.role = role;
}
#Override
public String toString() {
return getEmail() + " - " + getUserId();
}
}
and this the user_Roo_Configurable file
package com.emc.fleet.domain;
import com.emc.fleet.domain.User;
import org.springframework.beans.factory.annotation.Configurable;
privileged aspect User_Roo_Configurable {
declare #type: User: #Configurable;
}
any clue ?