Форма обработки Spring MVC

Question

Я создаю простую форму для создания пользователя, но у меня все еще есть ошибка, я боюсь с ней очень долго.

Bean property 'user_id' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter? 

org.springframework.beans.NotReadablePropertyException:

Вот мои методы AdminController для управления вводом пользователя:

@RequestMapping(value = "/add", method = RequestMethod.GET) 
public String add(Model model) { 
    User user = new User(); 
    model.addAttribute("user", user); 
    model.addAttribute("users", userService.listUsers()); 
    return "teams"; 
} 

@RequestMapping(value = "/userSave", method = RequestMethod.POST) 
public String saveUser(@RequestParam("user_id") int user_id, @Valid User user, BindingResult result, Model model) { 

    userService.create(user.getId(), user.getUsername(), user.getPassword(), user.getFirst_name(), 
      user.getLast_name(), user.getRole(), user.getEmail(), user.getStart_date(), user.getId_team()); 
    return "home"; 
} 

Моя форма teams.jsp выглядит следующим образом:

<c:url var="userSaveUrl" value="/teams/userSave" /> 
<form:form action="${userSaveUrl}" method="post" 
    modelAttribute="user" id="user"> 
    <div class="form-group"> 
    <form:label path="user_id">ID</form:label> 
    <form:input path="user_id" class="form-control" /> 
    </div> 
    <form:hidden path="user_id" /> 
    <div class="form-group"> 
    <form:label path="first_name">First name</form:label>     
       <form:input path="first_name" class="form-control" /> 
    </div> 
    <div class="form-group"> 
    <form:label path="last_name">Last name</form:label> 
    <form:input path="last_name" class="form-control" /> 
    </div> 
    <div class="form-group"> 
    <form:label path="email">email</form:label> 
    <form:input path="email" class="form-control" /> 
    </div> 
    <div class="form-group"> 
    <form:label path="start_date">Start date</form:label> 
    <form:input path="start_date" class="form-control" /> 
    </div> 
    <div class="form-group"> 
    <form:label path="username">Username</form:label>     
        <form:input path="username" class="form-control" /> 
    </div> 
    <div class="form-group"> 
    <form:label path="password">Password</form:label> 
    <form:input type="password" path="password" class="form-control" /> 
    </div> 
    <div class="form-group"> 
    <form:label path="role">Role</form:label> 
    <form:input path="role" class="form-control" />    
    </div>    
    <div class="form-group"> 
    <form:label path="id_team">Team ID</form:label> 
    <form:input path="id_team" class="form-control" /> 
    </div> 

    <input name="saveBtn" value="Save" type="submit" class="btn btn-primary"> 
</form:form> 

User.java соответствует:

@Entity 
public class User { 

    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private int user_id; 

    @NotNull 
    @Column(nullable = false) 
    private String first_name; 

    @NotNull 
    @Column(nullable = false) 
    private String last_name; 

    @NotNull 
    @Column(nullable = false) 

    private String email; 
    @NotNull 
    @Column(nullable = false) 
    private Date start_date; 

    @NotNull 
    @Column(nullable = false) 
    private String username; 

    @NotNull 
    @Column(nullable = false) 
    private String password; 

    @NotNull 
    @Column(nullable = false) 
    private String role; 

    @Column(nullable = false) 
    private Integer id_team; 

    public User() { 
     // no-args constructor required by JPA spec 
    } 

    public User(String username, String password, String first_name, String last_name, String role, String email, 
      Date date) { 
     // this.id = nextİd.incrementAndGet(); 
     this.setUsername(username); 
     this.setPassword(password); 
     this.setFirst_name(first_name); 
     this.setLast_name(last_name); 
     this.setRole(role); 
     this.setEmail(email); 
     this.setStart_date(date); 

    } 

    public User(int id, String username, String password, String first_name, String last_name, String role, 
      String email, Date date) { 
     // this.id = nextİd.incrementAndGet(); 
     // this.user_id = id; 
     this.setId(id); 
     this.setUsername(username); 
     this.setPassword(password); 
     this.setFirst_name(first_name); 
     this.setLast_name(last_name); 
     this.setRole(role); 
     this.setEmail(email); 
     this.setStart_date(date); 
    } 

    public User(int id, String username, String password, String first_name, String last_name, String role, 
      String email, Date date, Integer id_team) { 
     // this.id = nextİd.incrementAndGet(); 
     // this.user_id = id; 
     this.setId(id); 
     this.setUsername(username); 
     this.setPassword(password); 
     this.setFirst_name(first_name); 
     this.setLast_name(last_name); 
     this.setRole(role); 
     this.setEmail(email); 
     this.setStart_date(date); 
     this.setId_team(id_team); 
    } 

    public void setId(int id) { 
     this.user_id = id; 
    } 

    public int getId() { 
     return user_id; 
    } 

    @Override 
    public String toString() { 
     int ID = this.getId(); 
     String user = "ID: " + Integer.toString(this.getId()) + " Role:" + this.getRole() + " Username:" 
       + this.getUsername() + " Username: " + this.getUsername() + " Email: " + this.getEmail(); 
     return user; 
    } 

    public String getUsername() { 
     return username; 
    } 

    public void setUsername(String username) { 
     this.username = username; 
    } 

    public String getRole() { 
     return role; 
    } 

    public void setRole(String role) { 
     this.role = role; 
    } 

    public String getPassword() { 
     return password; 
    } 

    public void setPassword(String password) { 
     this.password = password; 
    } 

    public String getFirst_name() { 
     return first_name; 
    } 

    public void setFirst_name(String first_name) { 
     this.first_name = first_name; 
    } 

    public String getLast_name() { 
     return last_name; 
    } 

    public void setLast_name(String last_name) { 
     this.last_name = last_name; 
    } 

    public String getEmail() { 
     return email; 
    } 

    public void setEmail(String email) { 
     this.email = email; 
    } 

    public Date getStart_date() { 
     return start_date; 
    } 

    public void setStart_date(Date start_date) { 
     this.start_date = start_date; 
    } 

    public Integer getId_team() { 
     return id_team; 
    } 

    public void setId_team(Integer id_team) { 
     this.id_team = id_team; 
    } 
} 

И наконец UserJDBCTemplate.java метод для создания entitny в БД:

@Override 
public void create(int id, String username, String password, String first_name, String last_name, String role, 
    String email, Date date, int id_team) { 
    String SQL = "insert into Users (id_user, username, password,first_name,last_name,role,email,date,id_team) values (?, ?, ?,?,?,?,?,?,?)"; 
    jdbcTemplateObject.update(SQL, id, username, password, first_name, last_name, role, email, date, id_team); 
} 

Я пробовал все, но я не могу получить к проблеме.

Answer 1

Пожалуйста Автогенерация ваши методы получения и установки через язя, , например, я вижу, что, в классе User метод геттер

public int getId() { 
     return user_id; 
    } 

Это будет,

public int getUser_id() { 
     return user_id; 
    }