這個只是筆記，沒有解釋。
將轉換成Eclipse項目結構後
我們開始第一個程式，註冊
1、在models.forms下建立一個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下建立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下建立一個類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，因為views下的你自己寫的html沒有編譯成class檔案。最後運行會編譯的。然後重新整理項目即可
4、開啟conf\routes檔案
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下建立一個名為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)為傳入參數
修改UserControl的submit方法
public static Result submit() { User user = userForm.bindFromRequest().get(); return ok(views.html.user.result.render(user)); }
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