JSP mit forEach für innere Klassen

Question

Ich habe eine Frage, wie man Variablen der inneren Klassen verwendet.

In myne Servlet sende ich Liste von Objekten und dort innere Klasse.

request.setAttribute("users", dao.getAllUsersandAdress()); 
    RequestDispatcher view = request.getRequestDispatcher(forward); 
    view.forward(request, response); 

schicken JSP Wo i forEach verwenden.

<c:forEach items="${users}" var="user"> 
    <tr> 
     <td><c:out value="${user.idUser}" /></td> 
     <td><c:out value="${user.firstName}" /></td> 
     <td><c:out value="${user.lastName}" /></td> 
     <td><c:out value="${user.loginName}" /></td> 
     <td><c:out value="${user.email}" /></td> 
     <td><fmt:formatDate pattern="yyyy-MMM-dd" value="${user.birthday}" /></td> 
     <td><c:out value="${user.isActive}" /></td> 
     <td><c:out value="${user.isAdmin}" /></td> 
     <td><fmt:formatDate pattern="yyyy-MMM-dd" value="${user.createdTimeStamp}" /></td> 
     <td><fmt:formatDate pattern="yyyy-MMM-dd" value="${user.lastupdateTimeStamp}" /></td> 
     <td><c:out value="${user.adressClass.zip}" /></td> 
     <td><c:out value="${user.adressClass.Country}" /></td> 
     <td><c:out value="${user.adressClass.City}" /></td> 
     <td><c:out value="${user.adressClass.District}" /></td> 
     <td><c:out value="${user.adressClass.Street}" /></td> 

     <td><a href="UserController?action=edit&userId=<c:out value="${user.idUser}"/>">Update</a></td> 
     <td><a href="UserController?action=delete&userId=<c:out value="${user.idUser}"/>">Delete</a></td> 
    </tr> 
</c:forEach> 

Am Ende gehen Tomcat, bis er erstes Objekt der inneren Klasse bekommen und das ist nicht finden sprechen.

-Code des Modells: Wie Sie gibt es zwei innere Klassen sehen können, Adresse und Gruppen

public class User { 

private int idUser; 
private String 
     firstName, 
     lastName, 
     loginName, 
     password, 
     email; 
private Date 
     birthday, 
     createdTimeStamp; 
private Timestamp 
     lastupdateTimeStamp; 
private boolean 
     isActive, 
     isAdmin; 

public Adress adressClass; 
public Group groupClass; 

public User() { 
    adressClass = new Adress(); 
    groupClass = new Group(); 
} 

public int getIdUser() { 
    return idUser; 
} 

public void setIdUser(int idAdress) { 
    this.idUser = idAdress; 
} 

public String getPassword() { 
    return password; 
} 

public void setPassword(String password) { 
    this.password = password; 
} 

public Date getBirthday() { 
    return birthday; 
} 

public void setBirthday(Date birthday) { 
    this.birthday = birthday; 
} 

public boolean isActive() { 
    return isActive; 
} 

public void setActive(boolean active) { 
    isActive = active; 
} 

public boolean isAdmin() { 
    return isAdmin; 
} 

public void setAdmin(boolean admin) { 
    isAdmin = admin; 
} 

public Date getCreatedTimeStamp() { 
    return createdTimeStamp; 
} 

public void setCreatedTimeStamp(Date createdTimeStamp) { 
    this.createdTimeStamp = createdTimeStamp; 
} 

public Date getLastupdateTimeStamp() { 
    return lastupdateTimeStamp; 
} 

public void setLastupdateTimeStamp(Timestamp lastupdateTimeStamp) { 
    this.lastupdateTimeStamp = lastupdateTimeStamp; 
} 


public String getFirstName() { 
    return firstName; 
} 

public void setFirstName(String firstName) { 
    this.firstName = firstName; 
} 

public String getLastName() { 
    return lastName; 
} 

public void setLastName(String lastName) { 
    this.lastName = lastName; 
} 

public String getLoginName() { 
    return loginName; 
} 

public void setLoginName(String loginName) { 
    this.loginName = loginName; 
} 

public String getEmail() { 
    return email; 
} 

public void setEmail(String email) { 
    this.email = email; 
} 
@Override 
public String toString() { 
    return "User [idUser=" + idUser + ", firstName=" + firstName 
      +", loginName="+ loginName 
      +", LastName=" + lastName + ", birthday=" + birthday + ", email=" 
      + email +",Adress country "+adressClass.country +"]"; 
} 

public class Adress{ 
    private int 
      idAdress, 
      zip; 
    private String 
      country, 
      city, 
      district, 
      street; 

    public int getIdAdress() { 
     return idAdress; 
    } 

    public void setIdAdress(int idAdress) { 
     this.idAdress = idAdress; 
    } 

    public int getZip() { 
     return zip; 
    } 

    public void setZip(int zip) { 
     this.zip = zip; 
    } 

    public String getCountry() { 
     return country; 
    } 

    public void setCountry(String country) { 
     this.country = country; 
    } 

    public String getCity() { 
     return city; 
    } 

    public void setCity(String city) { 
     this.city = city; 
    } 

    public String getDistrict() { 
     return district; 
    } 

    public void setDistrict(String district) { 
     this.district = district; 
    } 

    public String getStreet() { 
     return street; 
    } 

    public void setStreet(String street) { 
     this.street = street; 
    } 
} 

public class Group{ 
    private int idGroup; 
    private String role; 

    public int getIdGroup() { 
     return idGroup; 
    } 

    public void setIdGroup(int idGroup) { 
     this.idGroup = idGroup; 
    } 

    public String getRole() { 
     return role; 
    } 

    public void setRole(String role) { 
     this.role = role; 
    } 
} 

}

Tomcat schreiben weiter:

HTTP Status 500 - An exception occurred processing JSP page /index.jsp at line 9 
    javax.el.PropertyNotFoundException: Property 'adressClass' not found on type model.User 
javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:291) 

Alle berät? Danke.

Answer 1

Vielen Dank RU Community stackoverflow. Antwort ist - Need erstellen Getter und Setter für innere Klassen. Und noch eine Sache, wenn jemand Gebrauch myne Code sein wird, gibt es in JSP-Seite neben ändern müssen: Weil

<td><c:out value="${user.adressClass.zip}" /></td> 
    <td><c:out value="${user.adressClass.Country}(Country on country)" /></td> 
    <td><c:out value="${user.adressClass.City(city)}" /></td> 
    <td><c:out value="${user.adressClass.District(district)}" /></td> 
    <td><c:out value="${user.adressClass.Street(street)}" /></td> 

, wenn u es nicht tun, JSP-Seite geben u Fehler und das Objekt sagt nicht gefunden .