NoSuchMethodException in Struts2

Question

I have textfield for birthDate. When a user enter invalid date, let say for example a String, error message successfully displayed as fielderror. But in my console, I got this e

Answer 1

In your Action class you dont have a method called setBirthDate(String birthDate), add it your issue should be resolved.

Note check to see that you have placed all getter and setter in your action class for all properties.

I think in your JSP you have :

<s:textfield name="birthDate" />

Struts will try to map this to setBirthDate(String string), since this method is missing in your action hence the NoSuchMethodException

Update:

To convert String to Date:

public class MyStringToDateConverter extends StrutsTypeConverter {
    public Object convertFromString(Map context, String[] values, Class toClass) {
       //Parse String to get a date object
    }

    public String convertToString(Map context, Object o) {
       // Get the string from object o
    }
 }

If you are using Annotation in your action class then add @Conversion() to your action

@Conversion()
public class MyAction extends ActionSupport{
    public Date myDate = null;

    @TypeConversion(converter="MyStringToDateConverter") //Fully qualified name so if this class is in mypackage then converter will be "myPackage.MyStringToDateConverter"
    public void setMyDate(Date date) { 
        this.myDate = date;
    }
}

If you dont want to use Annotation then you can look at the official documentation for example.