Play Framework 2.0 - views.render抛出异常

Question

我正试图从doc运行hello world app .

我收到以下错误:

render(java.lang.String) in views.html.index cannot be applied to (play.data.Form<controllers.Application.Hello>)

指向以下代码块:

  /**
   * Home page
  */
  public static Result index() {
     return ok(index.render(form(Hello.class)));
  }

Eclipse也无法解析索引对象上的.render方法.

the method render(String) in the type index is not applicable for the arguments (Form<Application.Hello>)

我定义了以下导入:

package controllers;

import play.*;
import play.mvc.*;
import play.data.*;
import play.data.validation.Constraints.*;

import java.util.*;
import views.html.*;

此外,文件夹app/views /中还提供了hello.scala.html和index.scala.html

知道我做错了什么吗？

Answer 1

Play 2.0中的每个视图都是包含参数的Scala函数,最有可能是在index.sacala.html开头声明的字符串中:

@(message: String)

它应该是你的形式:

在控制器中:

final static Form<MyModel> myForm = form(MyModel.class);

public static Result blank() {
    return ok(formNew.render(myForm));
}

并在视图中:

@(myForm: Form[MyModel])