小编for*_*tUk的帖子

问题是将数据从表单(或从参数Map)绑定到实际的Form对象.我添加了一些println仅用于测试目的.这是Controller类的代码.

package controllers;

import java.util.List;

import javax.inject.Inject;

import models.Product;
import play.data.Form;
import play.data.FormFactory;
import play.mvc.Controller;
import play.mvc.Result;

import views.html.products.list;
import views.html.products.details;

public class Products extends Controller {

@Inject
public Products(FormFactory formFactory) {
    productForm =  formFactory.form(Product.class);
  }

private static Form<Product> productForm;

public  Result list(){
    List<Product> products = Product.findAll();
    return ok(list.render(products));
}
public  Result newProduct(){
    return ok(details.render(productForm));
}
public  Result save(){
    Form<Product> filledForm=productForm.fill(new Product("0000","0000","0000"));
    Form<Product> boundForm=productForm.bindFromRequest();
    final Product product =(Product) boundForm.get();
    System.out.println(">>Bound ean form data: "+boundForm.field("ean").value()+"->Product from bound form: "+boundForm.get()); …