struts タグで Bean プロパティを表示するときに問題が発生しました。log4j をデバッグ モードにしました。OGNL 式を使用して Bean を評価すると、画面に正しい値が表示されますが、コンソールにも多くの警告が表示されます。コードは次のとおりです。
<s:textfield id="citta" name="citta" value="%{add.citta}" />
または別の例:
<s:if test="%{add.citta != null}" > ... </s:if>
値 add.citta が表示されますが、コンソールには次のように表示されます。
DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering getProperty (ognl.OgnlContext@b07b029a,org.apache.struts2.util.AttributeMap@ac995a,templateDir)
- [2012-11-30 10:52:43,150]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=templateDir]
- [2012-11-30 10:52:43,153]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=templateDir]
- [2012-11-30 10:52:43,155]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=org.apache.struts2.util.AttributeMap@ac995a, property=templateDir]
- [2012-11-30 10:52:43,157]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Property: null
- [2012-11-30 10:52:43,159]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Class: com.opensymphony.xwork2.util.CompoundRoot
- [2012-11-30 10:52:43,160]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - field-level type converter for property [null] = none found
- [2012-11-30 10:52:43,162]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - global-level type converter for property [null] = none found
- [2012-11-30 10:52:43,163]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - falling back to default type converter [com.opensymphony.xwork2.conversion.impl.XWorkBasicConverter@b5c55e]
- [2012-11-30 10:52:43,165]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering getProperty (ognl.OgnlContext@b07b029a,org.apache.struts2.util.AttributeMap@ac995a,theme)
- [2012-11-30 10:52:43,167]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=theme]
- [2012-11-30 10:52:43,169]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=theme]
- [2012-11-30 10:52:43,171]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=org.apache.struts2.util.AttributeMap@ac995a, property=theme]
- [2012-11-30 10:52:43,173]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Property: null
- [2012-11-30 10:52:43,175]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Class: com.opensymphony.xwork2.util.CompoundRoot
- [2012-11-30 10:52:43,176]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - field-level type converter for property [null] = none found
- [2012-11-30 10:52:43,176]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - global-level type converter for property [null] = none found
- [2012-11-30 10:52:43,177]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - falling back to default type converter [com.opensymphony.xwork2.conversion.impl.XWorkBasicConverter@b5c55e]
- [2012-11-30 10:52:43,178]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=registrazione]
- [2012-11-30 10:52:43,180]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering getProperty (ognl.OgnlContext@b07b029a,org.apache.struts2.util.AttributeMap@ac995a,citta)
- [2012-11-30 10:52:43,184]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering getProperty (ognl.OgnlContext@b07b029a,org.apache.struts2.util.AttributeMap@ac995a,templateDir)
- [2012-11-30 10:52:43,185]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=templateDir]
- [2012-11-30 10:52:43,186]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=[it.consoft.controller.GestioneAddress@4d92da, com.opensymphony.xwork2.DefaultTextProvider@b39ad9], property=templateDir]
- [2012-11-30 10:52:43,187]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Entering nullPropertyValue [target=org.apache.struts2.util.AttributeMap@ac995a, property=templateDir]
- [2012-11-30 10:52:43,188]DEBUG [http-bio-8080-exec-2] (CommonsLogger.java:68) - Property: null
修正したいのですが、変数を宣言しようとしました<s:set> or <s:bean>が、警告は消えませんでした。
これが私のクラスです：
public class GestioneAddress extends ActionSupport {
private Address add;
public Address getAdd() {
return add;
}
public void setAdd(Address add) {
this.add = add;
}
}
これが私の豆です：
public class Address implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "AddressID")
private Integer addressID;
@Basic(optional = false)
@Size(min = 1, max = 45)
@Column(name = "Citta")
private String citta;
public Integer getAddressID() {
return addressID;
}
public void setAddressID(Integer addressID) {
this.addressID = addressID;
}
public String getCitta() {
return citta;
}
public void setCitta(String citta) {
this.citta = citta;
}
}