多个表中的值Spring验证问题

Question

我无法使用我拥有的多个数据库表：

Input:User(表格用户)Input field:Email(表格用户)Input:Bookingnumber(表格Bookingnumber)

仅使用“用户”表单的输入字段有效，从其他表添加预订号会引发此错误：

Invalid target for Validator     [shuttleservice.form.validator.UserFormValidator@1588512]:   shuttleservice.form.model.Bookingnumber@18d7616

问题类似于如何使用Spring和hiberNate将值插入多个表

spring错误中验证器的无效目标？

我只有两种形式，一种输出，只显示db数据，一种输入带有多个db表的字段

我应该使用多个验证器吗？

// show add user form
@RequestMapping(value = "/users/add", method = RequestMethod.GET)
public String showAddUserForm(Model model) {

    logger.debug("showAddUserForm()");

    User user = new User();
    Bookingnumber bookingnumber = new Bookingnumber();

    // set default value
    user.setName("setNewUserName");     
    user.setEmail("[e-mail]");

    bookingnumber.setBookingnumber("123.456");

    model.addAttribute("userForm", user);
    //model.addAttribute("bookingnumberForm", bookingnumber);
    model.addAttribute("userForm", bookingnumber);


    populateDefaultModel(model);
System.out.println("#8");
    return "users/userform";

}

Answer 1

创建一个模型类来包装所有表单字段，并将此新包装类的对象传递给表单。然后编写单个验证器类来验证字段。

private class FormModel {
    private User user;
    private BookingNumber bookingNumber;

    //Getter Setter ....
}

// show add user form
@RequestMapping(value = "/users/add", method = RequestMethod.GET)
public String showAddUserForm(Model model) {

    logger.debug("showAddUserForm()");
    FormModel formModel = new FormModel ();
    User user = new User();
    Bookingnumber bookingnumber = new Bookingnumber();

    // set default value
    user.setName("setNewUserName");     
    user.setEmail("[e-mail]");

    bookingnumber.setBookingnumber("123.456");
    formModel.setUser(user);
    formModel.setBookingNumber(bookingNumber);
    model.addAttribute("formModel", formModel);
    return "users/userform";
}