More details to my previous posting... I am building an app with Struts 1.x, which is dynamically rendered at runtime to create html form elements. Because of the applications dynamic nature, I am using map backed struts action form to dynamically capture the values in a HashMap.
Unfortunately, for multiple select box, the object value being set to the map was always a String than a String[]. The same case applies to checkbox. Am I using map backed struts action form properly. Is there any other approach to build a dynamic form and actions!! Your help is much appreciated. I am pasting a sample test form and action form below. form.jsp *********** <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> <%@ taglib uri="http://struts.apache.org/tags-bean"; prefix="bean"%> <%@ taglib uri="http://struts.apache.org/tags-html"; prefix="html"%> <%@ taglib uri="http://struts.apache.org/tags-logic"; prefix="logic"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>MyTestForm</title> </head> <body> <html:form action="/myTestAction.do"> <html:select property="value(myTestProperty)" multiple="true"> <html:option value="option1">option1</html:option> <html:option value="option2">option2</html:option> <html:option value="option3">option3</html:option> <html:option value="option4">option4</html:option> <html:option value="option5">option5</html:option> </html:select> <p> </p> <html:submit property="submit"></html:submit> </html:form> </body> </html> ************************************ formResults.jsp <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> <%@ taglib uri="http://struts.apache.org/tags-bean"; prefix="bean"%> <%@ taglib uri="http://struts.apache.org/tags-html"; prefix="html"%> <%@ taglib uri="http://struts.apache.org/tags-logic"; prefix="logic"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Results</title> </head> <body> Selected values are<br> <bean:write name="myTestForm" property="value(myTestProperty)" /> </body> </html> **************************** MyTestForm is package test; import java.util.HashMap; import java.util.Map; import org.apache.struts.action.ActionForm; public class MyTestForm extends ActionForm { private static final long serialVersionUID = 1L; private static final Map values = new HashMap(); public void setValue(String key, Object value) { if (value instanceof String) { System.out.println("Doesnt work!!! valueof a multiple select is a string"); } else if (value instanceof String[]) { System.out.println("cool. It works!!! value is a string array"); } else { System.out.println("Some other object"); } values.put(key, value); } public Object getValue(String key) { return values.get(key); } } ************************* MyTestAction package test; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; public class MyTestAction extends Action { public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { String[] myTestProperty = new String[0]; if (request.getParameterValues("value(myTestProperty)") != null) { myTestProperty = request.getParameterValues("value(myTestProperty)"); } for (int i = 0; i < myTestProperty.length; i++) { System.out.println(myTestProperty[i]); } ActionForward forward = mapping.findForward("success"); return forward; } } **************************** Struts-config defintion form bean defintion <form-bean name="myTestForm" type="test.MyTestForm"></form-bean> action defintion <action path="/myTestAction" name="myTestForm" type="test.MyTestAction" scope="session" validate="false"> <forward name="success" path="/formResults.jsp"></forward> </action> -- View this message in context: http://www.nabble.com/Map-backed-Struts-Action-Form-and-multiple-select-values-issue-tp15623494p15641300.html Sent from the Struts - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
