javax.el.PropertyNotFoundException: The class '

问题:

I've the below session scoped CDI managed bean:

@Named
@SessionScoped
public class RegisterController implements Serializable {   
    private static final long serialVersionUID = 1L;

    @Inject
    private MitgliedAbc mitgliedAbc;

    public MitgliedAbc getMitgliedABC() {
        return mitgliedAbc;
    }

    public void setMitgliedAbc (MitgliedAbc mitgliedAbc) {
        this.mitgliedAbc = mitgliedAbc;
    }

}

And the following input in a JSF form:

<h:inputText value="#{registerController.mitgliedAbc.mgEmail}" />

When deploying to GlassFish 4.1 and opening the page in browser, the following exception is thrown:

javax.el.PropertyNotFoundException: /register.xhtml @27,66 value="#{registerController.mitgliedAbc.mgEmail}": The class 'com.example.RegisterController' does not have a readable property 'mitgliedAbc'.

How is this caused and how can I solve it?

回答1:

javax.el.PropertyNotFoundException: The class 'xxx' does not have a readable property 'yyy'

This basically means that the class xxx does not have a (valid) getter method for property yyy.

In other words, the following EL expression which should output the value,

#{xxx.yyy}

was unable to find a public Yyy getYyy() method on class xxx.

In your particular case, with the following EL expression,

#{registerController.mitgliedAbc}

it was unable to find a public MitgliedAbc getMitgliedAbc() property.

And indeed, that method doesn't exist. It's named getMitgliedABC() instead of getMitgliedAbc().

Fix the method name accordingly to exactly match getYyy().

public MitgliedAbc getMitgliedAbc() {
    return mitgliedAbc;
}

回答2:

I had the same error and I got the solution

This is my Emp Model

public class Emp {
    private String Eid;
    private String Ename;
    private String Mobile;
    private String Email;

    public String getEid() {
        return Eid;
    }

    public void setEid(String Eid) {
        this.Eid = Eid;
    }

    public String getEname() {
        return Ename;
    }

    public void setEname(String Ename) {
        this.Ename = Ename;
    }

.........etc

And my Controller method

 @RequestMapping(value="/welcome", method=RequestMethod.POST)
    public ModelAndView CtrlMethod(@ModelAttribute("employee1") Emp employee1) {
         ModelAndView model = new ModelAndView("hellopage");
         return model;    
    }

In My (hellopage.jsp) JSP Page I mentioned like bellow and it works for me.

 ${employee1.getEid()}
 ${employee1.getEname()}
 ${employee1.getMobile()}
 ${employee1.getEmail()}