我在使用IntelliJ的Play FrameWork上练习ZenTask (JavaGuided)。我完全遵循了概述的步骤，但我不断收到这个恼人的错误：
Error:(24, 196) type Login is not a member of object controllers.Application
class login extends BaseScalaTemplate[play.twirl.api.HtmlFormat.Appendable,Format[play.twirl.api.HtmlFormat.Appendable]](play.twirl.api.HtmlFormat) with play.twirl.api.Template1[Form[Application.Login],play.twirl.api.HtmlFormat.Appendable] {
Error:(27, 43) type Login is not a member of object controllers.Application
def apply/*1.2*/(form: Form[Application.Login]):play.twirl.api.HtmlFormat.Appendable = {
Error:(71, 36) type Login is not a member of object controllers.Application
def render(form:Form[Application.Login]): play.twirl.api.HtmlFormat.Appendable = apply(form)
Error:(73, 28) type Login is not a member of object controllers.Application
def f:((Form[Application.Login]) => play.twirl.api.HtmlFormat.Appendable) = (form) => apply(form)
请帮助识别错误。我觉得这个框架非常错误和令人沮丧。
完成错误消息：
package models;
import com.avaje.ebean.Model;
import javax.persistence.Entity;
import javax.persistence.Id;
@Entity
public class User extends Model {
@Id
public String email;
public String name;
public String password;
public User(String email, String name, String password) {
this.email = email;
this.name = name;
this.password = password;
}
public Finder<String,User> find = new Finder<String,User>(
String.class, User.class
);
public User authenticate(String email, String password) {
return find.where().eq("email", email)
.eq("password", password).findUnique();
}
}
这是我的代码：
form控制器：loginForm和render(form(Login.class)))在render(loginForm))和package controllers;
import models.User;
import play.data.Form;
import play.mvc.Controller;
import play.mvc.Result;
import views.html.index;
import views.html.login;
public class Application extends Controller {
public Result index() {
return ok(index.render("hello"));
}
public Result login() {
return ok(login.render(form(Login.class)));
}
public Result authenticate() {
Form<User> loginForm = Form.form(User.class).bindFromRequest();
if (loginForm.hasErrors()) {
return badRequest(login.render(loginForm));
} else {
session().clear();
session("email", loginForm.get().email);
return redirect(
routes.Application.index()
);
}
}
public class Login {
public String email;
public String password;
public User user;
public String validate() {
user.authenticate(email, password);
if (user == null) {
return "Invalid user or password";
}
return null;
}
}
}
中突出显示为错误：
@(form: Form[Application.Login])
<html>
<head>
<title>Zentasks</title>
<link rel="shortcut icon" type="image/png" href="@routes.Assets.at("images/favicon.png")">
<link rel="stylesheet" type="text/css" media="screen" href="@routes.Assets.at("stylesheets/login.css")">
</head>
<body>
<header>
<a href="@routes.Application.index" id="logo"><span>Zen</span>tasks</a>
</header>
@helper.form(routes.Application.authenticate) {
<h1>Sign in</h1>
@if(form.hasGlobalErrors) {
<p class="error">
@form.globalError.message
</p>
}
<p>
<input type="email" name="email" placeholder="Email" value="@form("email").value">
</p>
<p>
<input type="password" name="password" placeholder="Password">
</p>
<p>
<button type="submit">Login</button>
</p>
}
</body>
</html>
观看次数：登录突出显示为错误。
# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~
# Home page
GET / controllers.Application.index()
GET /login controllers.Application.login()
POST /login controllers.Application.authenticate()
# Map static resources from the /public folder to the /assets URL path
GET /assets/*file controllers.Assets.at(path="/public", file)
路线：
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
</head>
<body>
<div class ='container'>
<h1>Get in touch!</h1>
<div id='error'></div>
<form>
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="email" aria-describedby="emailHelp" placeholder="Enter email">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Subject</label>
<input type="password" class="form-control" id="subject" placeholder="Subject">
</div>
<div class="form-group">
<label for="exampleTextarea">Message</label>
<textarea class="form-control" id="message" rows="3"></textarea>
</div>
<button type="submit" class="btn btn-primary" id="submit">Submit</button>
</form>
</div>
<!-- jQuery first, then Tether, then Bootstrap JS. -->
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
<script type='text/javascript'>
$('form').submit(function (e) {
e.preventDefault();
var error ="";
if ($('#subject').val() == "") {
error += 'The subject field is required.<br>';
}
if ($('#message').val() == "") {
error += 'The message field is required.<br>';
}
if ($('#email').val() == "") {
error += 'The email field is required.';
}
if (error != "" ) {
$("#error").html(
'<div class="alert alert-danger" role="alert"></p> <strong>Error(s) in your form:</strong></p>' + error + '</div>');
}else{
$("form").unbind('submit').submit();
}
});
</script>
</body>
</html>