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Posted to user@struts.apache.org by Suman Das <sa...@yahoo.com> on 2002/11/17 10:54:04 UTC
ActionServlet unable to proceed...pl help
Hi!
While running the following code (more or less same as Javaranch's march article) in weblogic 7.0, the LoginView.jsp accepts UserID and Pwd but then the login.do returns a blank page...seems ActionServlet is unable to proceed. Here's my directory structure (weblogic 7.0) and the source codes (more or less same as March article). Pl help.
examplesWebApp
|_WEB-INF
| |_______classes
| |_______lib |___test
| struts-config.xml |__struts
| web.xml LoginAction.class
| LoginBean.class
MainMenu.jsp LoginForm.class
LoginView.jsp MessageResource.props
The files are as under:
<!-- LoginView.jsp -->
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts.tld" prefix="struts" %>
<HTML>
<HEAD><TITLE><struts:message key="title.login" /></TITLE></HEAD>
<BODY>
<struts:message key="heading.login" />
<html:errors />
<html:form action="/login">
<p>
<struts:message key="label.userId" />:
<html:text property="userId" size="10" />
<br>
<struts:message key="label.passWord" />:
<html:password property="passWord" size="10" />
<br><br>
<html:submit>
<bean:message key="button.submit" />
</html:submit>
</html:form>
</BODY>
</HTML>
******************************************************
File:struts-config.xml
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.0//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd">
<struts-config>
<!-- ========== Form Bean Definitions ============ -->
<form-beans>
<form-bean name="login" type="test.struts.LoginForm" />
</form-beans>
<!-- ========== Global Forward Definitions ========= -->
<global-forwards>
</global-forwards>
<!-- ========== Action Mapping Definitions ======== -->
<action-mappings>
<action
path="/login"
type="test.struts.LoginAction"
scope="request"
name="login"
input="LoginView.jsp"
validate="true">
<forward name="valid" path="MainMenu.jsp" redirect="true"/>
<forward name="invalid" path="LoginView.jsp" redirect="true"/>
</action>
</action-mappings>
</struts-config>
**********************************************
<!-- MainMenu.jsp -->
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts.tld" prefix="struts" %>
<jsp:useBean id="LoginBean" scope="request" class="test.struts.LoginBean" />
<HTML>
<HEAD><TITLE><struts:message key="title.mainmenu" /></TITLE></HEAD>
<BODY>
<struts:message key="heading.mainmenu" />
<p>
<struts:message key="label.userType" />:
<b><jsp:getProperty name="LoginBean" property="userType" /></b><br>
</BODY>
</HTML>
**********************************************
File: web.xml
<web-app>
<display-name>Examples Web Application</display-name>
<!-- Action Servlet Configuration -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>test.struts.MessageResources</param-value>
</init-param>
<init-param>
<param-name>mapping</param-name>
<param-value>org.apache.struts.action.RequestActionMapping</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- Struts Tag Library Descriptors -->
<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/WEB-INF/struts-template.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-template.tld</taglib-location>
</taglib>
</web-app>
*************************************************
package test.struts;
import javax.servlet.http.*;
import org.apache.struts.action.*;
public class LoginAction extends Action {
public LoginAction() {}
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, javax.servlet.ServletException{
LoginBean lb = new LoginBean();
request.setAttribute("LoginBean", lb);
lb.setParameters(request);
ActionErrors ae = lb.validate();
request.setAttribute(Action.ERROR_KEY, ae);
if (ae == null || ae.size() == 0) {
System.out.println("after LoginAction");
return mapping.findForward("valid");
} else {
return mapping.findForward("invalid");
}
}
}
*****************************
package test.struts;
import org.apache.struts.action.*;
import javax.servlet.http.*;
public class LoginForm extends ActionForm {
String userId, passWord;
public void setUserId(String userId) {
this.userId = userId;
}
public void setPassWord(String passWord) {
this.passWord = passWord;
}
public String getUserId() {
return userId;
}
public String getPassWord() {
return passWord;
}
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
ActionErrors ae = new ActionErrors();
if (userId == null || userId.equals("")) {
ae.add("userId", new ActionError("error.no.userId"));
}
if (passWord == null || passWord.equals("")) {
ae.add("passWord", new ActionError("error.no.passWord"));
}
return ae;
}
}
******************************************
package test.struts;
import javax.servlet.http.*;
import org.apache.struts.action.*;
public class LoginBean {
String userType, userId ,passWord;
public LoginBean() {}
public void setParameters(HttpServletRequest request) {
String userId = request.getParameter("userId");
String passWord = request.getParameter("passWord");
}
public ActionErrors validate() {
if (!userId.equals(passWord)) {
ActionErrors ae = new ActionErrors();
ae.add("userId", new ActionError("error.invalid.login"));
return ae;
}
if (userId.equals("admin")) {
userType = "Adminstrator";
} else
if (userId.equals("user")) {
userType = "User";
} else {
ActionErrors ae = new ActionErrors();
ae.add("userId", new ActionError("error.invalid.login"));
return ae;
}
return null;
}
public String getUserType() {
return userType;
}
public void setUserType(String userType) {
this.userType = userType;
}
}
*****************************************
File: MessageResources.properties
title.login=Login
button.submit=Send for Verification
error.no.userId=<li>User ID is a required field</li>
error.no.passWord=<li>Password is a required field</li>
error.invalid.login=<li>The User ID and/or Password are invalid. Please try again.</li>
errors.footer=</ul><hr>
errors.header=<h3><font color="red">Validation Error</font></h3>You must correct the following error(s) before proceeding:<ul>
label.userId=User ID
label.passWord=Password
heading.login=<H2>Enter your user information</H2>
heading.mainmenu=<H1>Welcome!</H1>
label.userType=<H2>You are authorized to use this system as a</H2>
title.mainmenu=Title
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