我做了一些更改，但仍然有一个错误：
在BeginRender [ShowAll：grid.rows.gridcell]中呈现队列错误：com.mycompany.licenta.pages.Hotel无法转换为com.mycompany.licenta.pages.Hotel
TML页面：
<html t:type="layout" title="Show All"
xmlns:t="http://tapestry.apache.org/schema/tapestry_5_3.xsd"
xmlns:p="tapestry:parameter">
<head>
<title>Lista Hoteluri</title>
</head>
<body>
<t:grid t:source="allHotels"/>
<br/>
<a href="#" t:type="PageLink" t:page="Index">
Back to the Start Page</a>
</body>
</html>Java Class如果您需要任何课程，请随时提出。谢谢！
package com.mycompany.licenta.pages;
import org.apache.tapestry5.annotations.SessionState;
import com.mycompany.licenta.util.User;
import com.mycompany.licenta.data.ListaHoteluri;
import com.mycompany.licenta.pages.Hotel;
import com.mycompany.licenta.data.IDataSource;
import java.util.List;
import java.text.Format;
import org.apache.tapestry5.annotations.InjectPage;
import org.apache.tapestry5.annotations.OnEvent;
/**
*
* @author Alina
*/
public class ShowAll {
@SessionState
private User user;
private boolean userExists;
@SessionState
private IDataSource dataSource;
@InjectPage
private Details detailsPage;
private Hotel hotel;
String onActivate()
{
if(!userExists) return "Index";
return null;
}
//@OnEvent(component="detailsLink")
Object onShowDetails(long id)
{
Hotel hotel = dataSource.getHotelById(id);
detailsPage.setHotel(hotel);
return detailsPage;
}
public List<Hotel>getAllHotels()
{
return dataSource.getAllHotels();
}
public Hotel getHotel()
{
return hotel;
}
public void setHotel(Hotel hotel)
{
this.hotel = hotel;
}
//Object onActivate()
//{if (!userExists) return Index.class; return null;}
}
酒店类是这样的：------------------------------------------- ----------
package com.mycompany.licenta.pages;
/**
*
* @author Alina
*/
public class Hotel {
private long id;
private String numeHotel;
private String adresaHotel;
private float notaGenerala;
private int numarRecenzii;
private int numarVizualizari;
public Hotel()
{
}
public Hotel(String numeHotel,String adresaHotel,float notaGenerala,int numarRecenzii,
int numarVizualizari)
{
this.numeHotel=numeHotel;
this.adresaHotel=adresaHotel;
this.notaGenerala=notaGenerala;
this.numarRecenzii=numarRecenzii;
this.numarVizualizari=numarVizualizari;
}
public String getNumeHotel()
{
return numeHotel;
}
public void setNumeHotel(String numeHotel)
{
this.numeHotel = numeHotel;
}
public String getAdresaHotel()
{
return adresaHotel;
}
public void setAdresaHotel(String adresaHotel)
{
this.adresaHotel = adresaHotel;
}
public float getNotaGenerala()
{
return notaGenerala;
}
public void setNotaGenerala(float notaGenerala)
{
this.notaGenerala = notaGenerala;
}
public int getNumarRecenzii()
{
return numarRecenzii;
}
public void setNumarRecenzii(int numarRecenzii)
{
this.numarRecenzii= numarRecenzii;
}
public int getNumarVizualizari()
{
return numarVizualizari;
}
public void setNumarVizualizari(int numarVizualizari)
{
this.numarVizualizari=numarVizualizari;
}
public long getId()
{
return id;
}
public void setId(long id)
{
this.id=id;
}
}
为什么Hotel包中的pages类似乎不是一个有效的挂毯页？ pages是为有效的Tapestry页面类保留的特殊包。将模型类移动到pages包之外的包中（不要将其移动到子包，尝试类似com.mycompany.licenta.data）。另外，请确保您没有模型类和名为Hotel的页面，并且您将错误的Hotel导入ShowAll页面。
注释掉ShowAll.java中的@InjectPage行。我认为问题在于，无关的注释告诉Tapestry对您不想要的酒店属性进行字节代码更改。