I have tried to settup derby and mysql databases, but both times it could not find the table. I have created the table, and I connect to it from different devices on my network. I just cant connect to it using the connection pool.
I receive the following messages "java.sql.SQLSyntaxErrorException: Table/View 'USERS' does not exist" or "Table/View 'ADDRESSES' does not exist" for another example.
I can ping the database, and everything is working using the drivermanager, but it is not working using the connection pool. My pool configuration:
user:user
password:password
url:jdbc:mysql://localhost:3306/thechef
port:3306
DatabaseName:thechef
ServerName:localhost
Here is my file:
Users.java
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.annotation.Resource;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.sql.DataSource;
#ManagedBean
#SessionScoped
public class Users {
private String userName;
private String firstName;
private String lastName;
private String city;
private String zipcode;
private String state;
private String country;
private String email;
#Resource (name="jdbc/thechef")
DataSource ds;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getZipcode() {
return zipcode;
}
public void setZipcode(String zipcode) {
this.zipcode = zipcode;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
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 String save() throws SQLException
{
if (ds==null)
throw new SQLException ("unable to obtain datasource");
Connection connection = ds.getConnection();
if (connection==null)
throw new SQLException ("unable to obtain datasource");
try{
PreparedStatement addEntry = connection.prepareStatement("INSERT INTO USERS (USERNAME, FIRSTNAME, LASTNAME)VALUES (?,?,?)");
addEntry.setString(1, getUserName());
addEntry.setString(2, getFirstName());
addEntry.setString(3, getLastName());
addEntry.executeUpdate();
return "index";
}
finally{
connection.close();
}
}
}
Related
I have difficult to figure out to create an object in a class for jUnit test.
In my test I have : User user = new User(); , and I receive a
java.lang.reflect.InvocationTargetException cathed into
public abstract class ReflectiveCallable {
public Object run() throws Throwable {
try {
return runReflectiveCall();
} catch (InvocationTargetException e) {
throw e.getTargetException();
}
}
This is my User class:
#Entity
public class User implements Serializable{
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
private String firstName;
private String lastName;
private Double internalKey = (new Random()).nextDouble();
protected User() {
super();
}
public User(String firstName, String lastName) {
super();
this.firstName = firstName;
this.lastName = lastName;
}
public Long getId() {
return id;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
public String getInternalKey() {
return internalKey;
}
}
What is wrong? thanks
Customer entity
#Entity
#Table(name="Customer")
public class Customer {
#Id
#GeneratedValue
private Long cusId;
#Column(name="firstname")
private String firstName;
#Column(name="lastname")
private String lastName;
#Column(name="address")
private String add;
#Column(name="tel")
private int tel;
#Column(name="email")
private String email;
#Column(name="userName")
private String username;
#Column(name="password")
private String password;
#OneToMany(fetch = FetchType.EAGER, mappedBy = "customer")
#JsonManagedReference
private List<Complain> complain=new ArrayList<Complain>();
public Customer() {
super();
// TODO Auto-generated constructor stub
}
public Long getCusId() {
return cusId;
}
public void setCusId(Long cusId) {
this.cusId = cusId;
}
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 String getAdd() {
return add;
}
public void setAdd(String add) {
this.add = add;
}
public int getTel() {
return tel;
}
public void setTel(int tel) {
this.tel = tel;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public List<Complain> getComplain() {
return complain;
}
public void setComplain(List<Complain> complain) {
this.complain = complain;
}
}
Complain Entity
#Entity
#Table(name="Complain")
public class Complain {
#Id
#GeneratedValue
private Long id;
#Column(name="repfirst")
private String repfirst;
#Column(name="replast")
private String replast;
#Column(name="warranty")
private String warranty;
#Column(name="dop")
private String purDate;
#Column(name="Nomachine")
private String Nomachine;
#Column(name="Complain")
private String Complain;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name="cus_id", referencedColumnName = "cusId")
#JsonBackReference
private Customer customer;
public Complain() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getRepfirst() {
return repfirst;
}
public void setRepfirst(String repfirst) {
this.repfirst = repfirst;
}
public String getReplast() {
return replast;
}
public void setReplast(String replast) {
this.replast = replast;
}
public String getWarranty() {
return warranty;
}
public void setWarranty(String warranty) {
this.warranty = warranty;
}
public String getPurDate() {
return purDate;
}
public void setPurDate(String purDate) {
this.purDate = purDate;
}
public String getNomachine() {
return Nomachine;
}
public void setNomachine(String nomachine) {
Nomachine = nomachine;
}
public String getComplain() {
return Complain;
}
public void setComplain(String complain) {
Complain = complain;
}
public Customer getCustomer() {
return customer;
}
public void setCustomer(Customer customer) {
this.customer = customer;
}
}
I want to pass data to the mysql database through the postman tool. How can I pass value for the foreign key column through the json query?
This is the method I have used in controller
#PostMapping(path="/",consumes="application/json",produces="application/json")
public void addComplain(#RequestBody Complain complain)
{
Integer id = complainService.getAllComplain().size()+1;
complain.setId(new Long(id));
complainService.createOrUpdateComplain(complain); }
After I send the request from the postman, all the data are saved except the foreign key. I think I missed something in mapping two tables.
This is my json query
{"complain":"No power",
"repfirst":"hi",
"replast":"all",
"warranty":"yes",
"purDate":"2020-02-29",
"nomachine":"6",
"tel":"46544654",
"Customer":[
{"cusId":"1"}
]
}
Database table image
Please help, Thanks in advance
{
"repfirst": "",
"replast": "",
"warranty": "",
"purDate" : "",
"Nomachine": "",
"Complain": "",
"cus_id": 1
}
That should work
"Customer":[
{"cusId":"1"}
]
This would work if you had Set<Customer> customers converted to an array in json, for example.
I have already connected my springboot to MySQL database. I want to display the username when user_id is specified in the HTTP request. e.g. http://8080/user/1 must display the name of the user with user_id 1.
The table contains attributes as:
| Integer user_id; | String username; | String fathername; | String mothername;
I have already tried this code in by Controller class but i does not seem to be working
#RequestMapping("/{userid}")
#ResponseBody
public String getById(Integer userid) {
String name="";
try {
Optional<Persondetails> persondetails=persondetailsRepository.findById(personid);
name = String.valueOf(userdetails.getName());
}
catch (Exception ex) {
return "Name not found";
}
return "The Name of the user is : " + name;
}
my repository code:
import java.util.List;
import java.util.Optional;
public interface UserdetailsRepository extends JpaRepository<Userdetails, Integer> {
public Optional<Userdetails> findById(Integer userid);
}
It says getName() is undefined for the type Optional
But i have defined it in Userdetails class
public class Userdetails {
#Id
#GeneratedValue
#Column(name="user_id")
private Integer userid;
#Column(name="name")
private String name;
#Column (name="fathers_name")
private String fathersname;
#Column(name="mothers_name")
private String mothersname;
public Userdetails() {
}
public Integer getUserid() {
return userid;
}
public void setUserid(Integer userid) {
this.userid = userid;
}
public String getName() {
return name;
}
public void setname(String name) {
this.name = name;
}
public String getFathersname() {
return fathersname;
}
public void setFathersname(String fathersname) {
this.fathersname = fathersname;
}
public void setMothersname(String mothersname) {
this.mothersname = mothersname;
}
public String getMothersname() {
return mothersname;
}
}
It's missing the method type GET, you can do by two options:
#RequestMapping(value = "/{id}", method = RequestMethod.GET)
public User findOne(#PathVariable("id") int id){
return userService.findById(id);
}
OR
#GetMapping("/{id}")
public String getString(#PathVariable("id") int id) {
return "Helloworld";
}
Spring boot Connect with Mysql and get Data.
application.properties
server.contextPath=/demo-user
spring.datasource.url=jdbc:mysql://localhost:3306/testdb
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
*Controller.Java
#RequestMapping({"/users"})
public class UserController {
#Autowired
private UserService userService;
#GetMapping(path = {"/{id}"})
public User findOne(#PathVariable("id") int id){
return userService.findById(id);
}
}
UserService.java
public interface UserService {
User findById(int id);
}
UserServiceImpl.java
#Service
public class UserServiceImpl implements UserService {
#Autowired
private UserRepository repository;
#Override
public User findById(int id) {
return repository.findOne(id);
}
}
UserRepository .java
public interface UserRepository extends Repository<User, Integer> {
User findOne(int id);
}
User.java
#Entity
#Table(name = "user")
public class User {
#Id
#Column
#GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
#Column
private String firstName;
#Column
private String lastName;
#Column
private String email;
//setter and getter
}
Make request from browser or application.
http://localhost:8080/demo-user/users/1
I've got a simple Spring Controller who's purpose is to return a RESTful JSON response of my entity objects. Its returning the data in standard camelCase names which match my entity. However, I'd like the JSON names to match the database fields, which is simply TitleCase. Is there a simple way to do this? Below is a sample of the Controller and the JSON returned.
#Controller
#RequestMapping(path="/Users")
public class UserController {
#Autowired
private UserRepository userRepository;
#GetMapping(path="/List")
public #ResponseBody Iterable<User> getAllUsers() {
// This returns a JSON or XML with the users
return userRepository.findAll();
}
}
Resulting JSON:
{"id":1,"userName":"SYSTEM","password":"xxxxx","firstName":"System","lastName":"System","phone":"XXX-XXX-XXXX","email":"system#test.com","reviewer":false,"admin":false}
Here's my User entity class:
package com.prs.business;
import java.io.Serializable;
import java.sql.Timestamp;
import java.time.LocalDateTime;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonProperty;
#Entity
public class User implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private int id;
#Column(name="username")
#JsonProperty("UserName")
private String userName;
private String password;
#Column(name="firstname")
private String firstName;
#Column(name="lastname")
private String lastName;
private String phone;
private String email;
#Column(name="isreviewer")
private boolean reviewer;
#Column(name="isadmin")
private boolean admin;
#Column(name="isactive")
private boolean active;
#Column(name="datecreated")
#JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd'T'HH:mm:ss.SSS")
private Timestamp dateCreated;
public User() {
userName = "";
password = "";
}
public User(int id, String userName, String password, String firstName, String lastName, String phoneNumber,
String email, boolean reviewer, boolean admin) {
super();
this.id = id;
this.userName = userName;
this.password = password;
this.firstName = firstName;
this.lastName = lastName;
this.phone = phoneNumber;
this.email = email;
this.reviewer = reviewer;
this.admin = admin;
}
public User(String un, String pw, String fn, String ln, String pn, String e, boolean m, boolean a) {
setUserName(un);
setPassword(pw);
setFirstName(fn);
setLastName(ln);
setPhoneNumber(pn);
setEmail(e);
setReviewer(m);
setAdmin(a);
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
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 String getPhone() {
return phone;
}
public void setPhoneNumber(String phoneNumber) {
this.phone = phoneNumber;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public boolean isReviewer() {
return reviewer;
}
public void setReviewer(boolean inReviewer) {
this.reviewer = inReviewer;
}
public boolean isAdmin() {
return admin;
}
public void setAdmin(boolean inAdmin) {
this.admin = inAdmin;
}
public boolean isActive() {
return admin;
}
public void setActive(boolean inActive) {
this.admin = inActive;
}
public Timestamp getDateCreated() {
return dateCreated;
}
public void setDateCreated(Timestamp dateCreated) {
this.dateCreated = dateCreated;
}
#Override
public String toString() {
return "User [id=" + id + ", userName=" + userName + ", password=" + password + ", firstName=" + firstName
+ ", lastName=" + lastName + ", phoneNumber=" + phone + ", email=" + email + ", reviewer="
+ reviewer + ", admin=" + admin + "]";
}
}
How to enable pascal case for all JSON property names?
Put the following setting in your application.properties
spring.jackson.property-naming-strategy=UPPER_CAMEL_CASE
userRepository.findAll() will probably return a POJO, right?
In that pojo, before the getters or before the fields declaratin, you can add an annotion like
#JsonProperty("<hereYouWriteTheNameYouPrefer>")
private String userName;
or
private String userName;
#JsonProperty("<hereYouWriteTheNameYouPrefer>")
public String getUserName(){
return userName;
}
Ok i have class User
#Entity
#Table(name = "users")
public class User implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue
private Long id_user;
#Column(nullable = false)
private String email;
#Column(nullable = true)
private String password;
private String firstname;
private String lastname;
private Boolean enabled;
private String phone;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "id_company")
private Company company;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "id_rank")
#JsonBackReference
private Authority authorities;
#OneToMany(mappedBy = "create_by")
private List<Cms> create_by;
#OneToMany(mappedBy = "modified_by")
private List<Cms> modified_by;
#OneToMany(mappedBy = "id_issuer")
private List<Ticket> id_issuer;
#OneToMany(mappedBy = "id_responsible")
private List<Ticket> id_responsible;
#OneToMany(mappedBy = "id_author")
private List<IssueMsg> id_author;
public User() {
}
public User(String email, String password, String firstname, String lastname, String phone, Company company, Authority authority) {
this.email = email;
this.password = password;
this.firstname = firstname;
this.lastname = lastname;
this.enabled = true;
this.phone = phone;
this.authorities = authority;
}
#Override
public String toString() {
return "User [id_user=" + id_user + ", email=" + email + ", password="
+ password + ", firstname=" + firstname + ", lastname="
+ lastname + ", enabled=" + enabled + ", phone=" + phone
+ "]";
}
public Long getId_user() {
return id_user;
}
public void setId_user(Long id_user) {
this.id_user = id_user;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
#JsonIgnore
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
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 Boolean getEnabled() {
return enabled;
}
public void setEnabled(Boolean enabled) {
this.enabled = enabled;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public Company getCompany() {
return company;
}
public void setCompany(Company company) {
this.company = company;
}
/**
* #return the authorities
*/
public Authority getAuthorities() {
return authorities;
}
/**
* #param authorities the authorities to set
*/
public void setAuthorities(Authority authority) {
this.authorities = authority;
}
#JsonIgnore
public List<Cms> getCreate_by() {
return create_by;
}
public void setCreate_by(List<Cms> create_by) {
this.create_by = create_by;
}
#JsonIgnore
public List<Cms> getModified_by() {
return modified_by;
}
public void setModified_by(List<Cms> modified_by) {
this.modified_by = modified_by;
}
#JsonIgnore
public List<Ticket> getId_issuer() {
return id_issuer;
}
public void setId_issuer(List<Ticket> id_issuer) {
this.id_issuer = id_issuer;
}
#JsonIgnore
public List<Ticket> getId_responsible() {
return id_responsible;
}
public void setId_responsible(List<Ticket> id_responsible) {
this.id_responsible = id_responsible;
}
#JsonIgnore
public List<IssueMsg> getId_author() {
return id_author;
}
public void setId_author(List<IssueMsg> id_author) {
this.id_author = id_author;
}
}
And class Company
#Entity
#Table(name = "companies")
public class Company implements Serializable {
private static final long serialVersionUID = 6255059577246367312L;
#Id
#GeneratedValue
private Long id_company;
private String name;
private String adress;
private String email;
private String phone;
#OneToMany(mappedBy = "company")
#JsonManagedReference
private List<User> user;
#Override
public String toString() {
return "Company [id_company=" + id_company + ", name=" + name
+ ", adress=" + adress + ", email=" + email + ", phone="
+ phone + "]";
}
public Company() {
}
public Company(Long id_company, String name, String adress, String email,
String phone) {
this.id_company = id_company;
this.name = name;
this.adress = adress;
this.email = email;
this.phone = phone;
}
public Long getId_company() {
return id_company;
}
public void setId_company(Long id_company) {
this.id_company = id_company;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAdress() {
return adress;
}
public void setAdress(String adress) {
this.adress = adress;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public List<User> getUser() {
return user;
}
public void setUser(List<User> user) {
this.user = user;
}
}
I getting all result from database, and returning this as response body.
My JSON response get user.company.user list and i don't need what. I was try add on getter company user #JsonIgnore but i getting error
com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: java.util.ArrayList[1]->projektzespolowy.model.User["company"]->projektzespolowy.model.Company_$$_jvstcb8_2["handler"])
I read many post about fix thix but no one help. This is possible to ignore this user list in company?
I think you are getting this exception because User#company is lazy fetched so jackson tries to serialize a hibernate proxy. Try with fetch = FetchType.EAGER on the mapping, or call user.getCompany() in the controller prior to returning the results.