[ http://issues.apache.org/struts/browse/WW-1561?page=all ]
Ted Husted resolved WW-1561.
----------------------------
Resolution: Not A Problem
It's better to post something like this to the user list. In a cause like this,
the problem is more likely with the application configuration than the
firamework.
* http://struts.apache.org/mail.html
I was able to get the case by adding it to struts-blank and streamlining the
configuration.
<package name="default" extends="struts-default">
<action name="sendSMS" class="example.SendSMS">
<result>/success.jsp</result>
<result name="error">/fail.jsp</result>
</action>
</package>
When specifying new stacks, remember that the new stack *completely* overrides
the old. Also, the S2 default stack does include most everything that will be
useful to most applications, inlcuding the servlet-config interceptor.
* http://struts.apache.org/2.x/docs/interceptors.html
-Ted.
> Exception using form tag
> ------------------------
>
> Key: WW-1561
> URL: http://issues.apache.org/struts/browse/WW-1561
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.0.1
> Environment: Windows XP
> Jetty 6.0.1
> Caucho Resin 3.0.22
> Reporter: Alexey Poimtsev
> Fix For: 2.0.2
>
>
> Hi, all.
> I try to develop simple forms application with this code:
> index.jsp
> <%@ taglib uri="/struts-tags" prefix="s" %>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
> <head>
> <title>My page</title>
> </head>
> <body>
> <s:form action="sendSMS" method="post">
> <s:textfield name="smsFrom">Message From:</s:textfield>
> <s:textfield name="smsTo">Message
> To:</s:textfield>
> <s:textarea name="smsMessageBody"
> cols="20" rows="10">Message:</s:textarea>
> <s:submit type="submit" value="Submit"
> />
> </s:form>
> </body>
> </html>
> web.xml
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
> 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd";>
> <web-app>
> <display-name>Struts 2 TestApp</display-name>
> <context-param>
> <param-name>contextConfigLocation</param-name>
> <param-value>classpath*:applicationContext*.xml</param-value>
> </context-param>
> <filter>
> <filter-name>Struts2</filter-name>
> <filter-class>
> org.apache.struts2.dispatcher.FilterDispatcher
> </filter-class>
> </filter>
> <filter-mapping>
> <filter-name>Struts2</filter-name>
> <url-pattern>/*</url-pattern>
> </filter-mapping>
> <listener>
> <listener-class>
> org.springframework.web.context.ContextLoaderListener
> </listener-class>
> </listener>
> <welcome-file-list>
> <welcome-file>index.html</welcome-file>
> <welcome-file>index.jsp</welcome-file>
> </welcome-file-list>
> </web-app>
> struts.xml
> <?xml version="1.0" encoding="UTF-8" ?>
> <!DOCTYPE struts PUBLIC
> "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
> "http://struts.apache.org/dtds/struts-2.0.dtd";>
> <struts>
> <package name="default">
> <default-interceptor-ref name="defaultStack" />
> <action name="sendSMS" class="com.alec_c4.testApp.SendSMS">
> <result name="success" type="dispatcher">
> /success.jsp
> </result>
> <result name="error"
> type="dispatcher">/fail.jsp</result>
> <interceptor-ref name="servlet-config" />
> </action>
> </package>
> </struts>
> /**
> *
> */
> package com.alec_c4.testApp;
> import java.util.Map;
> import org.apache.struts2.interceptor.ParameterAware;
> import com.opensymphony.xwork2.ActionSupport;
> /**
> * @author Alec C4
> *
> */
> public class SendSMS extends ActionSupport implements ParameterAware {
> private static final long serialVersionUID = 2775840359087216729L;
> String[] smsFrom;
> String[] smsTo;
> String[] smsMessageBody;
>
>
> public Map parameters;
>
> public Map getParameters() {
> return parameters;
> }
> public void setParameters(Map parameters) {
> this.parameters = parameters;
> }
>
> public String execute () throws Exception {
> // Some Business Logic
> smsFrom = (String[]) parameters.get("smsFrom");
> smsTo = (String[]) parameters.get("smsTo");
> smsMessageBody = (String[]) parameters.get("smsMessageBody");
> if (smsFrom == null || smsFrom[0] == null ||
> smsFrom[0].length() == 0)
> return ERROR;
> else return SUCCESS;
> }
> }
> and when i have compiled application i put this one in webapp root and start
> the server. As a result i see this exception:
> 2006-12-14 18:35:11.713::WARN: /testApp/index.jsp
> java.lang.NullPointerException
> at
> org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:703)
> at org.apache.struts2.components.UIBean.end(UIBean.java:450)
> at
> org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTa
> gSupport.java:36)
> at
> org.apache.jsp.index_jsp._jspx_meth_s_textfield_0(org.apache.jsp.inde
> x_jsp:200)
> at
> org.apache.jsp.index_jsp._jspx_meth_s_form_0(org.apache.jsp.index_jsp
> :143)
> at org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:93)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
> .java:358)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:4
> 40)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:335)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:445
> )
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:3
> 56)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:2
> 26)
> Could you tell me please - what the problem is ? This problem is actual for
> Jetty and Resin.
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