這個只是筆記，沒有解釋。
將轉換成Eclipse項目結構後
我們開始第一個程序，註冊
1、在models.forms下新建一個form類
package models.forms;
public class User {
public int id;
public String name;
}類中屬性必須是public 類型
2、接下來在views.user下新建form.scala.html頁面
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="/register" method="post">
ID:<input type="text" id="id" name="id"/>
Name:<input type="text" id="name" name="name"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>
html名稱是XXX.scala.html格式
3、在controllers下新建一個類UserControl.java
package controllers;
import static play.data.Form.form;
import models.forms.User;
import play.data.Form;
import play.mvc.Controller;
import play.mvc.Result;
import views.html.user.*;
public class UserControl extends Controller {
final static Form<User> userForm = form(User.class);
public static Result register() {
return ok(form.render());
}
public static Result submit() {
User user = userForm.bindFromRequest().get();
return ok("ID:"+user.id+"\n"+
"name:"+user.name);
}
}
用eclipse編輯，出現紅色波浪線，沒有關係，因爲views下的你自己寫的html沒有編譯成class文件。最後運行會編譯的。然後刷新項目即可
4、打開conf\routes文件
加入
GET /register controllers.UserControl.register()
POST /register controllers.UserControl.submit()
5、cmd在該項目路徑下,輸入play run即可。
http://localhost:9000/register
附加：
1、如果不想寫form類
public static Result submit() {
DynamicForm requestData = form().bindFromRequest();
String id = requestData.get("id");
String name = requestData.get("name");
return ok("ID:"+id+"\n"+
"name:"+name);
}
2、如果想在另一個頁面顯示
在views.user下新建一個名爲result.scala.html
@(user:forms.User)
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>Result</h1>
ID:@user.id
<br/>
Name:@user.name
</body>
</html>@(user:forms.User)爲傳入參數
修改UserControl的submit方法
public static Result submit() {
User user = userForm.bindFromRequest().get();
return ok(views.html.user.result.render(user));
}