JSPTag: Exception - Cet attribut ne prend pas en charge les valeurs de temps de demande

Question

Je reçois le message "Cet attribut ne prend pas en charge les valeurs de temps de requête". lors de la compilation de mon implémentation de balise jsp personnalisée.

Mon fichier TLD

<?xml version="1.0" encoding="ISO-8859-1" ?> 
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd"> 
<taglib> 
    <tlibversion>1.0</tlibversion> 
    <jspversion>1.1</jspversion> 
    <shortname>My Extension</shortname> 
    <info>Customization Extensions</info> 
    <tag> 
    <name>requireDisplay</name> 
    <tagclass>com.view.LinksTag</tagclass> 
    <teiclass>com.view.LinksTagExtraInfo</teiclass> 
    <bodycontent>JSP</bodycontent> 
    <info> My Tags Exercise 
    </info> 
    <attribute> 
     <name>viewID</name> 
     <required>true</required> 
     <rtexpvalue>true</rtexpvalue> 
    </attribute> 
    <attribute> 
     <name>viewType</name> 
     <required>true</required> 
     <rtexpvalue>true</rtexpvalue> 
    </attribute> 
</tag> 
</taglib> 

Ma JSP Tag mise en œuvre a la méthode suivante

/** 
* doStartTag is called by the JSP container when the tag is encountered 
*/ 
public int doStartTag() throws JspException { 
    try { 
     JspWriter out = pageContext.getOut(); 
     out.println(getContent()); 
    } catch (Exception ex) { 
     throw new ElmsUncheckedException(ex); 
    } 
    // Must return SKIP_PAGE because we are done with the content. 
    return SKIP_BODY; 
} 

/** 
* getContent is called by the startTag to print the Request View button 
* contents. 
*/ 
private String getContent() { 
    String linkURL = ViewConstants.BASE_URL; 
    StringBuffer sbuffer = new StringBuffer(); 
    sbuffer.append("<form name=\"postView\" action=\"" + linkURL + "\" target=\"_blank\" method=\"POST\">\n"); 
    sbuffer.append("<input type=\"hidden\" name=\"ID\" value=\"" + viewID + "\" />\n"); 
    sbuffer.append("<input type=\"hidden\" name=\"Type\" value=\"" + viewType + "\" />\n"); 
    sbuffer.append("<tr>\n"); 
    sbuffer.append("<td class=\"BodyBG\">\n"); 
    sbuffer 
      .append("<button type=\"submit\" class=\"GridButton\" name=\"dispatch\" value=\"postView\">postView</button> \n"); 
    sbuffer.append("</td><td width=\"1\"></td>\n"); 
    sbuffer.append("</tr>\n"); 
    sbuffer.append("</form>\n"); 
    return sbuffer.toString(); 
} 

public int doEndTag() throws JspException { 
    resetVariables(); 
    return EVAL_PAGE; 
} 

mon jsp les éléments suivants sont

<%@ taglib uri="/WEB-INF/view.tld" prefix="cmd" %> 

..... 

<cmd:requireDisplay viewID="<%=vox.getViewID()%>" viewType="<%=vox.getViewType()%>"/> 

Mais je reçois l'exception suivante

[jspc] Error encountered while compiling 'jspURI' 
view_details.jsp:136:22: The required attribute "viewID" is missing. 

        <cmd:requireDisplay viewID="<%=vox.getViewID()%>" viewType="<%=vox.getViewType()%>"/> 

        ^----------------------^ 

view_details.jsp:136:22: The required attribute "viewType" is missing. 

        <cmd:requireDisplay viewID="<%=vox.getViewID()%>" viewType="<%=vox.getViewType()%>"/> 

        ^----------------------^ 

view_details.jsp:136:42: This attribute does not support request time values. 

        <cmd:requireDisplay viewID="<%=vox.getViewID()%>" viewType="<%=vox.getViewType()%>"/> 

                 ^---------^ 

view_details.jsp:136:57: This attribute does not support request time values. 

        <cmd:requireDisplay viewID="<%=vox.getViewID()%>" viewType="<%=vox.getViewType()%>"/> 

                                 ^----------^ 

Est-ce que je manque quelque chose? Comme dans le tld, même j'ai essayé de donner TagExtraInfo aussi. Mais pas de chance.

Toute aide est très appréciée.

Answer 1

J'ai trouvé le problème. Il est une faute de frappe :(

<rtexpvalue>true</rtexpvalue> 

entrée

censé être

<rtexprvalue>true</rtexprvalue>