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Poniżej znajduje się kod modułu, który będzie logował (lub nie) użytkownika
do serwisu.
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<!-- Konfiguracja dla serwleta action (kontrolera Struts) -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<!-- opis kluczy -->
<param-name>application</param-name>
<param-value>portal.Resources</param-value>
</init-param>
</servlet>
<!-- servlet Struts-a, ktory pelni funkcje kontrolera -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>/execute/*</url-pattern>
</servlet-mapping>
</web-app>
<?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-beans>
<form-bean name="zalogujForm"
type="portal.forms.ZalogujForm"/>
</form-beans>
<global-forwards>
<forward name="zaloguj" path="/zaloguj.jsp"/>
</global-forwards>
<action-mappings>
<action path="/zaloguj"
type="portal.akcje.Zaloguj"
name="zalogujForm"
input="/zaloguj.jsp"
scope="request"
validate="true">
<forward name="blad" path="/zaloguj.jsp"/>
<forward name="sukces" path="/glowna.jsp"/>
</action>
</action-mappings>
</struts-config>
<%@ page language="java" %> <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> <%@ taglib uri="/WEB-INF/struts.tld" prefix="s" %> <html><body> <html:form action="/zaloguj" focus="id"> <html:errors/> <!-- wypisz bledy --> <s:message key="login.id"/> <!-- wypisz zachete do wpisania identyfikatora --> <html:text property="id" size="16" maxlength="16"/> <s:message key="login.haslo"/> <html:password property="haslo" size="16" maxlength="16" redisplay="false"/> <html:submit property="submit"> <s:message key="login.submit"/> </html:submit> </html:form> </body></html>
package portal.forms;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.*;
public class ZalogujForm extends ActionForm {
private String id = null;
private String haslo = null;
public String getId() { return id; }
public void setId(String id) { this.id = id; }
public String getHaslo() { return haslo; }
public void setHaslo(String haslo) { this.haslo = haslo; }
public void reset(ActionMapping mapping, HttpServletRequest request) {
this.haslo = null;
this.id = null;
}
public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
ActionErrors errors = new ActionErrors();
if ((id == null) || (id.length() == 0))
errors.add("id", new ActionError("error.id.required"));
if ((haslo == null) || (haslo.length() == 0))
errors.add("haslo", new ActionError("error.haslo.required"));
return errors;
}
}
package portal.akcje;
import javax.servlet.ServletException;
import javax.servlet.http.*;
import org.apache.struts.action.*;
import portal.forms.ZalogujForm;
public class Zaloguj extends Action {
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws ServletException {
ActionErrors errors = new ActionErrors(); /* kolekcja bledow */
String id = ((ZalogujForm) form).getId();
String haslo = ((ZalogujForm) form).getHaslo();
if (!haslo.equals("x")) {
errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.password.mismatch"));
saveErrors(request, errors);
/* powrot do poprzedniej strony */
return (new ActionForward(mapping.getInput()));
}
return (mapping.findForward("sukces"));
}
}
error.password.mismatch=Zle haslo!
error.id.required=Brak identyfikatora!
error.haslo.required=Brak hasla!
login.id=Id:
login.haslo=Haslo:
login.submit=Zaloguj