Das Datum als Null bei Verwendung von java.sql.Date

Question

Ich versuche, das Datum in die Datenbank einzufügen, und ich benutze java.sql.Date, aber das Problem, wenn Benutzer das Formular einreicht Ich bekomme Null-Wert. Gemäß einer Einschränkung darf ich nur java.sql.Date nicht util.Date verwenden.

Entity

import java.sql.Date; 

import javax.persistence.Column; 
import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 
import javax.persistence.Table; 
import javax.validation.constraints.NotNull; 

import org.hibernate.validator.constraints.NotEmpty; 
import org.springframework.format.annotation.DateTimeFormat; 

@Entity 
@Table(name="Users") 
public class Users { 

    @Id 
    @GeneratedValue(strategy=GenerationType.IDENTITY) 
    @Column(name="User_ID") 
    private int ID; 

    @Column(name="User_first_name") 
    @NotEmpty(message="Field cannot be left blank") 
    private String First_Name; 

    @Column(name="user_last_name") 
    private String Last_Name; 

    @Column(name="user_contact") 
    private int Contact; 

    @Column(name="user_email") 
    private String Email; 

    @Column(name="user_date_birth") 
    @DateTimeFormat(pattern="dd/MM/yyyy") 
    private Date DateOfBirth; 

    @Column(name="user_joining_date") 
    private Date DateOfJoining; 

    @Column(name="user_salary") 
    @NotNull 
    private int Salary; 

    public int getID() { 
     return ID; 
    } 

    public void setID(int iD) { 
     ID = iD; 
    } 

    public String getFirst_Name() { 
     return First_Name; 
    } 

    public void setFirst_Name(String first_Name) { 
     First_Name = first_Name; 
    } 

    public String getLast_Name() { 
     return Last_Name; 
    } 

    public void setLast_Name(String last_Name) { 
     Last_Name = last_Name; 
    } 

    public int getContact() { 
     return Contact; 
    } 

    public void setContact(int contact) { 
     Contact = contact; 
    } 

    public String getEmail() { 
     return Email; 
    } 

    public void setEmail(String email) { 
     Email = email; 
    } 

    public Date getDateOfBirth() { 
     return DateOfBirth; 
    } 

    public void setDateOfBirth(Date dateOfBirth) { 
     DateOfBirth = dateOfBirth; 
    } 

    public Date getDateOfJoining() { 
     return DateOfJoining; 
    } 

    public void setDateOfJoining(Date dateOfJoining) { 
     DateOfJoining = dateOfJoining; 
    } 

    public int getSalary() { 
     return Salary; 
    } 

    public void setSalary(int salary) { 
     Salary = salary; 
    } 

} 

-Controller

package com.example.crud; 

import java.text.SimpleDateFormat; 
import java.util.Map; 

import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.beans.propertyeditors.CustomDateEditor; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.validation.BindingResult; 
import org.springframework.web.bind.WebDataBinder; 
import org.springframework.web.bind.annotation.InitBinder; 
import org.springframework.web.bind.annotation.ModelAttribute; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 

import com.example.crud.entities.Users; 
import com.example.crud.service.TaskService; 

@Controller 
public class HomeController { 

    @Autowired 
    private TaskService service; 
    private Logger logger = LoggerFactory.getLogger(HomeController.class); 

    @InitBinder 
    public void initBinder(WebDataBinder binder){ 
     System.out.println("exe"); 
     SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy"); 
     sdf.setLenient(true); 
     binder.registerCustomEditor(java.sql.Date.class,"DateOfBirth", new CustomDateEditor(sdf, true)); 
    } 
    @RequestMapping(value="/Add", method=RequestMethod.GET) 
    public String index(Map<String, Object> model){ 
     Users users = new Users(); 
     model.put("users", users); 
     logger.debug("users"); 
     return "home"; 
    } 

    @RequestMapping(value="/Register", method=RequestMethod.POST) 
    public String Register(@ModelAttribute("users") Users users, BindingResult result, Model model){ 
     System.out.println(users.getFirst_Name()); 
     System.out.println(users.getDateOfBirth()); 
//  service.Register(users); 
     return "home"; 
    } 

} 

Answer 1

Ihre eigenen Editor registrieren.

public class SqlDateEditor extends PropertyEditorSupport { 
    private DateFormat dateFormat; 

    public SqlDateEditor (final DateFormat dateFormat) 
    { 
     this.dateFormat = dateFormat; 
    } 

    @Override 
    public void setAsText(String text) { 
     try { 
      setValue(new java.sql.Date(this.dateformat.parse(text).getTime()) 
     } catch (ParseException e) { 
      throw new IllegalArgumentException("Could not parse date: " + e.getMessage()); 
     } 
    } 

    @Override 
    public String getAsText() { 
     java.sql.Date value = (java.sql.Date) getValue(); 
     return (value != null ? this.dateFormat.format(value) : ""); 
    } 
} 

Auf dem Controller:

@InitBinder 
public void initBinder(final WebDataBinder binder) { 
    binder.registerCustomEditor(java.sql.Date.class, new SqlDateEditor(new SimpleDateFormat("dd/MM/yyyy"))); 
}