Problemas com Struts

scarlosantos · Agosto 26, 2004, 5:27pm

Estou começando a trabalhar com struts, entretanto venho enfrentando alguns problemas que descreverei a seguir:
Tenho o seguinte código no arquivo index.jsp

&lt;%@ taglib uri=&quot;/WEB-INF/tags/struts/struts-logic.tld&quot; prefix=&quot;logic&quot; %&gt;
&lt;%@ taglib uri=&quot;/WEB-INF/tags/struts/struts-bean.tld&quot; prefix=&quot;bean&quot; %&gt;
&lt;%@ taglib uri=&quot;/WEB-INF/tags/struts/struts-html.tld&quot; prefix=&quot;html&quot; %&gt;

&lt;html&#58;html locale=&quot;true&quot;&gt;
  &lt;head&gt;
    &lt;html&#58;base/&gt;
      &lt;title&gt;&lt;bean&#58;message key=&quot;global.title&quot;/&gt;&lt;/title&gt;
  &lt;/head&gt;
  &lt;body&gt;
  &lt;/body&gt;
&lt;/html&#58;html&gt;

O arquivo /WEB-INF/web.xml está configurado da seguinte forma:

&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;

&lt;!DOCTYPE web-app
   PUBLIC &quot;-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN&quot;
   &quot;http&#58;//java.sun.com/dtd/web-app_2_3.dtd&quot;&gt;

&lt;web-app&gt;
  &lt;servlet&gt;
    &lt;servlet-name&gt;action&lt;/servlet-name&gt;
    &lt;servlet-class&gt;org.apache.struts.action.ActionServlet&lt;/servlet-class&gt;
    &lt;init-param&gt;
      &lt;param-name&gt;config&lt;/param-name&gt;
      &lt;param-value&gt;/WEB-INF/struts-config.xml&lt;/param-value&gt;
    &lt;/init-param&gt;
    &lt;init-param&gt;
      &lt;param-name&gt;debug&lt;/param-name&gt;
      &lt;param-value&gt;2&lt;/param-value&gt;
    &lt;/init-param&gt;
    &lt;init-param&gt;
      &lt;param-name&gt;details&lt;/param-name&gt;
      &lt;param-value&gt;2&lt;/param-value&gt;
    &lt;/init-param&gt;
    &lt;init-param&gt;
      &lt;param-name&gt;validating&lt;/param-name&gt;
      &lt;param-value&gt;true&lt;/param-value&gt;
    &lt;/init-param&gt;
    &lt;load-on-startup&gt;2&lt;/load-on-startup&gt;
  &lt;/servlet&gt;

  &lt;servlet-mapping&gt;
    &lt;servlet-name&gt;action&lt;/servlet-name&gt;
    &lt;url-pattern&gt;*.do&lt;/url-pattern&gt;
  &lt;/servlet-mapping&gt;

  &lt;welcome-file-list&gt;
    &lt;welcome-file&gt;index.jsp&lt;/welcome-file&gt;
  &lt;/welcome-file-list&gt;

  &lt;taglib&gt;
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-bean.tld&lt;/taglib-uri&gt;
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-bean.tld&lt;/taglib-location&gt;
  &lt;/taglib&gt;
  &lt;taglib&gt;
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-html.tld&lt;/taglib-uri&gt;
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-html.tld&lt;/taglib-location&gt;
  &lt;/taglib&gt;
  &lt;taglib&gt;
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-logic.tld&lt;/taglib-uri&gt;
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-logic.tld&lt;/taglib-location&gt;
  &lt;/taglib&gt;
  &lt;taglib&gt;
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-nested.tld&lt;/taglib-uri&gt;
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-nested.tld&lt;/taglib-location&gt;
  &lt;/taglib&gt;
  &lt;taglib&gt;
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-template.tld&lt;/taglib-uri&gt;
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-template.tld&lt;/taglib-location&gt;
  &lt;/taglib&gt;
  &lt;taglib&gt;
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-tiles.tld&lt;/taglib-uri&gt;
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-tiles.tld&lt;/taglib-location&gt;
  &lt;/taglib&gt;

  &lt;description&gt;Embragec&lt;/description&gt;
  &lt;resource-ref&gt;
    &lt;description&gt;DataSource&lt;/description&gt;
    &lt;res-ref-name&gt;jdbc/campinaverde&lt;/res-ref-name&gt;
    &lt;res-type&gt;javax.sql.DataSource&lt;/res-type&gt;
    &lt;res-auth&gt;Container&lt;/res-auth&gt;
  &lt;/resource-ref&gt;
&lt;/web-app&gt;

O arquivo struts-config.xml está configurado conforme listado abaixo:

&lt;?xml version=&quot;1.0&quot;?&gt;

&lt;!DOCTYPE struts-config PUBLIC
   &quot;-//Apache Software Foundation//DTD Struts Configuration 1.1//EN&quot;
   &quot;http&#58;//jakarta.apache.org/struts/dtds/struts-config_1_1.dtd&quot;&gt;
   
&lt;struts-config&gt;
  &lt;message-resources parameter=&quot;Embragec&quot; null=&quot;false&quot;/&gt;

&lt;/struts-config&gt;

O arquivo .properties se encontra em /WEB-INF/classes com o nome de Embragec.properties

Quando chamo o arquivo index.jsp no navegador recebo a seguinte mensagem de erro:

javax.servlet.jsp.JspException&#58; Cannot find message resources under key org.apache.struts.action.MESSAGE
	org.apache.struts.util.RequestUtils.retrieveMessageResources&#40;RequestUtils.java&#58;1103&#41;
	org.apache.struts.util.RequestUtils.message&#40;RequestUtils.java&#58;1043&#41;
	org.apache.struts.taglib.bean.MessageTag.doStartTag&#40;MessageTag.java&#58;294&#41;
	org.apache.jsp.index_jsp._jspx_meth_bean_message_0&#40;index_jsp.java&#58;143&#41;
	org.apache.jsp.index_jsp._jspx_meth_html_html_0&#40;index_jsp.java&#58;102&#41;
	org.apache.jsp.index_jsp._jspService&#40;index_jsp.java&#58;69&#41;
	org.apache.jasper.runtime.HttpJspBase.service&#40;HttpJspBase.java&#58;94&#41;
	javax.servlet.http.HttpServlet.service&#40;HttpServlet.java&#58;802&#41;
	org.apache.jasper.servlet.JspServletWrapper.service&#40;JspServletWrapper.java&#58;324&#41;
	org.apache.jasper.servlet.JspServlet.serviceJspFile&#40;JspServlet.java&#58;292&#41;
	org.apache.jasper.servlet.JspServlet.service&#40;JspServlet.java&#58;236&#41;
	javax.servlet.http.HttpServlet.service&#40;HttpServlet.java&#58;802&#41;

Alguma idéia do que pode estar acontecendo?
Obrigado

raguiar · Agosto 26, 2004, 9:12pm

Tente com o arquivo web.xml abaixo:

&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt; 

&lt;!DOCTYPE web-app 
   PUBLIC &quot;-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN&quot; 
   &quot;http&#58;//java.sun.com/dtd/web-app_2_3.dtd&quot;&gt; 

&lt;web-app&gt; 
  &lt;servlet&gt; 
    &lt;servlet-name&gt;action&lt;/servlet-name&gt; 
    &lt;servlet-class&gt;org.apache.struts.action.ActionServlet&lt;/servlet-class&gt; 
    &lt;init-param&gt;
      &lt;param-name&gt;application&lt;/param-name&gt;
      &lt;param-value&gt;ApplicationResources&lt;/param-value&gt;
    &lt;/init-param&gt;
    &lt;init-param&gt; 
      &lt;param-name&gt;config&lt;/param-name&gt; 
      &lt;param-value&gt;/WEB-INF/struts-config.xml&lt;/param-value&gt; 
    &lt;/init-param&gt; 
    &lt;init-param&gt; 
      &lt;param-name&gt;debug&lt;/param-name&gt; 
      &lt;param-value&gt;2&lt;/param-value&gt; 
    &lt;/init-param&gt; 
    &lt;init-param&gt; 
      &lt;param-name&gt;details&lt;/param-name&gt; 
      &lt;param-value&gt;2&lt;/param-value&gt; 
    &lt;/init-param&gt; 
    &lt;init-param&gt; 
      &lt;param-name&gt;validating&lt;/param-name&gt; 
      &lt;param-value&gt;true&lt;/param-value&gt; 
    &lt;/init-param&gt; 
    &lt;load-on-startup&gt;2&lt;/load-on-startup&gt; 
  &lt;/servlet&gt; 

  &lt;servlet-mapping&gt; 
    &lt;servlet-name&gt;action&lt;/servlet-name&gt; 
    &lt;url-pattern&gt;*.do&lt;/url-pattern&gt; 
  &lt;/servlet-mapping&gt; 

  &lt;welcome-file-list&gt; 
    &lt;welcome-file&gt;index.jsp&lt;/welcome-file&gt; 
  &lt;/welcome-file-list&gt; 

  &lt;taglib&gt; 
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-bean.tld&lt;/taglib-uri&gt; 
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-bean.tld&lt;/taglib-location&gt; 
  &lt;/taglib&gt; 
  &lt;taglib&gt; 
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-html.tld&lt;/taglib-uri&gt; 
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-html.tld&lt;/taglib-location&gt; 
  &lt;/taglib&gt; 
  &lt;taglib&gt; 
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-logic.tld&lt;/taglib-uri&gt; 
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-logic.tld&lt;/taglib-location&gt; 
  &lt;/taglib&gt; 
  &lt;taglib&gt; 
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-nested.tld&lt;/taglib-uri&gt; 
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-nested.tld&lt;/taglib-location&gt; 
  &lt;/taglib&gt; 
  &lt;taglib&gt; 
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-template.tld&lt;/taglib-uri&gt; 
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-template.tld&lt;/taglib-location&gt; 
  &lt;/taglib&gt; 
  &lt;taglib&gt; 
    &lt;taglib-uri&gt;/WEB-INF/tags/struts/struts-tiles.tld&lt;/taglib-uri&gt; 
    &lt;taglib-location&gt;/WEB-INF/tags/struts/struts-tiles.tld&lt;/taglib-location&gt; 
  &lt;/taglib&gt; 

  &lt;description&gt;Embragec&lt;/description&gt; 
  &lt;resource-ref&gt; 
    &lt;description&gt;DataSource&lt;/description&gt; 
    &lt;res-ref-name&gt;jdbc/campinaverde&lt;/res-ref-name&gt; 
    &lt;res-type&gt;javax.sql.DataSource&lt;/res-type&gt; 
    &lt;res-auth&gt;Container&lt;/res-auth&gt; 
  &lt;/resource-ref&gt; 
&lt;/web-app&gt;

caiofilipini · Agosto 26, 2004, 10:12pm

Dê uma olhadinha nos logs do seu Servlet Container, pode ser que falte algum JAR no classpath da sua aplicação que esteja impedindo o Container de carregar o ActionServlet do Struts.

Se não me engano, vc precisa ter no mínimo Commons-Digester e Commons-BeanUtils no classpath para que o Struts funcione sem problemas…

[]'s

caiofilipini · Agosto 26, 2004, 10:17pm

Só mais um detalhe:

[quote=“raguiar”]<init-param> <param-name>application</param-name> <param-value>ApplicationResources</param-value> </init-param>[/quote]

Segundo o livro Struts in Action, essa configuração está deprecated. Basta vc configurar <message-resources /> no struts-config.xml.

[]'s

scarlosantos · Agosto 27, 2004, 8:20am

A adição do Commons-Digester e Commons-BeanUtils no classpath resolveram o problema.
Obrigado a todos.

system · Dezembro 29, 2015, 10:05am

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