How can I pass form input value to an Action (struts 1)

Question

I'm new using struts.

I need to pass the form value to an action when I submit the form. I want to use input tag no html:text.

How to do it?

This is my code:

form in JSP:

<form class="form-horizontal" action="address.do" method="post">
    Name: <input type="text" class="form-control" name="name"><br>
    City <input type="text" class="form-control" name="city"><br>
    Country: <input type="text" class="form-control" name="country"><br>
    <button class="btn btn-success" type="submit">Submit</button>
</form>

struts-config.xml:

<form-beans>
    <form-bean name="myFrom" type="com.form.MyForm"/>
</form-beans>

<global-forwards>
    <forward name="pagAddress" path="/address.do"/>
</global-forwards>

<action-mappings>
    <action path="/address"
            type="com.action.MainAction"
            name="myForm"            
            scope="request" 
            input="/addressInput.jsp" 
            validate="true">
        <forward name="success" path="/addressInput.jsp"/>
    </action>
</action-mappings>

ActionForm:

public class MyForm extends ActionForm{

private static final long serialVersionUID = -XXXXXXXXXXXXXXXXXXXX;
private String name = "";
private String city = "";
private String country = "";

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getCity() {
    return city;
}
public void setCity(String city) {
    this.city = city;
}
public String getCountry() {
    return country;
}
public void setCountry(String country) {
    this.country = country;
}

@Override
    public void reset(ActionMapping mapping, HttpServletRequest request) {
        this.name = null;
        this.city = null;
        this.country = null;
        super.reset(mapping, request);
    }

}

Action:

public class MainAction extends Action {

   public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
        if(getErrors(request) == null ||getErrors(request).size() == 0)
            return mapping.findForward("success");
        else
            return mapping.getInputForward();

   }
}

Answer 1

To access form values in a Struts 1 action, you need to cast ActionForm form to the type of form that the page uses, in your case MyForm. Then you can access its getters like normal. For example:

public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {

    MyForm theForm = (MyForm) form;
    String name = theForm.getName();

    if (name == null || "".equals(name)) {
        // error case; name is required
        // do something
    }

    if(getErrors(request) == null ||getErrors(request).size() == 0)
        return mapping.findForward("success");
    else
        return mapping.getInputForward();

}

If the problem you're having is getting the values out of MyForm into the JSP page, and you truly cannot use taglibs*, then you can get the form like this:

<%
MyForm theForm = (MyForm) session.getAttribute("MyForm");
%>

Then insert it into the page like this:

<form class="form-horizontal" action="address.do" method="post">
    Name: <input type="text" value="<%= theForm.getName() %>" class="form-control" name="name"><br>
    City <input type="text" value="<%= theForm.getCity() %>" class="form-control" name="city"><br>
    Country: <input type="text" value="<%= theForm.getCountry() %>" class="form-control" name="country"><br>
    <button class="btn btn-success" type="submit">Submit</button>
</form>

BUT you probably can use taglibs and just don't know how to add css classes to them. In the taglibs, styleClass renders to class in the output html. Try this:

<html:form styleClass="form-horizontal" action="address.do" method="post">
    Name: <html:text styleClass="form-control" name="name" /><br>
    City <html:text styleClass="form-control" name="city" /><br>
    Country: <html:text styleClass="form-control" name="country" /><br>
    <button class="btn btn-success" type="submit">Submit</button>
</html:form>