Passing Parameters Using commandLink

[Henry Hund]

Hello,

I am new here as I am also new to JSF. Thus far have found your community very informative. I have a question that I am somewhat embarrassed by, though after hours of searching Google and some time searching your forums (I sincerely hope this isn't a repost), I have no choice but to ask my question...

I am going to post a simplified version of my code below. I am trying to pass parameters using <f:param..> inside of an <h:commandLink... and I cannot get anything to work. I have tried several solutions I found on here and on Google, but none have worked. So, I am currently trying to implement what seems to be the most common methods, but I am receiving parsing errors... My bean (EntityDetails) is session scope.

entitySearchResults.jsp... should pass entityID to EntityDetails and then to entityDetails.jsp.

entitySearchResults.jsp

<h:form id="tableForm">
<h:dataTable styleClass="GMIST_TableContainer" cellspacing="1" cellpadding="0" border="0" value="#{EntitySearch.table}"
 
var="dbRow" width="800" headerClass="GMIST_TableHeader" rowClasses="GMIST_DataTablesAltColor,GMIST_DataTablesWhite">
<h:column>
 
 
<f:facet name="header">
<f:verbatim>Entity ID</f:verbatim>
</f:facet>
 
<h:commandLink styleClass="GMIST_StaticValue" 
id="entityIDlink" action="#{EntityDetails.details}">
  <h:outputText value="#{dbRow.entityID}"/>
  <f:param name="entityIDParam" value="#{dbRow.entityID}"/>
</h:commandLink>
</h:column>
...

EntityDetails.java

    
 
import javax.faces.context.FacesContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
 
public class EntityDetails {
 

//fields
private String entityID;

//getters and setters
public String getEntityID() {
return entityID;
}
 
public void setEntityID(String entityID) {
this.entityID = entityID;
}
 
 
//methods
public String details() {
FacesContext context = FacesContext.getCurrentInstance();
HttpServletRequest myRequest = (HttpServletRequest)context.getExternalContext().getRequest();
HttpSession mySession = myRequest.getSession();        
setEntityID(myRequest.getParameter("entityIDParam"));
 
System.err.println(">>>>>>>>>>>>>>>>>BACKING BEAN ENTITYDETAILS" + getEntityID());
return("getdetails");
//String entityID = getFacesParamValue("entityIDParam");
}

}
 
....

I don't think you need entityDetails.jsp... if I can get entityID to print out in the log, I think it will be fine.

My compiler error is as follows:

compile:
     [echo] -={Compiling...}=-
    [javac] Compiling 1 source file to C:\Workspace\interface\WebContent\WEB-INF
\classes
    [javac] C:\Workspace\interface\JavaSource\com\ml\gmi\eas\web\actions\EntityD
etails.java:5: package javax.servlet.http does not exist
    [javac] import javax.servlet.http.HttpServletRequest;
    [javac]                           ^
    [javac] C:\Workspace\interface\JavaSource\com\ml\gmi\eas\web\actions\EntityD
etails.java:6: package javax.servlet.http does not exist
    [javac] import javax.servlet.http.HttpSession;
    [javac]                           ^
    [javac] C:\Workspace\interface\JavaSource\com\ml\gmi\eas\web\actions\EntityD
etails.java:27: cannot find symbol
    [javac] symbol  : class HttpServletRequest
    [javac] location: class com.ml.gmi.eas.web.actions.EntityDetails
    [javac]             HttpServletRequest myRequest = (HttpServletRequest)conte
xt.getExternalContext().getRequest();
    [javac]                 ^
    [javac] C:\Workspace\interface\JavaSource\com\ml\gmi\eas\web\actions\EntityD
etails.java:27: cannot find symbol
    [javac] symbol  : class HttpServletRequest
    [javac] location: class com.ml.gmi.eas.web.actions.EntityDetails
    [javac]             HttpServletRequest myRequest = (HttpServletRequest)conte
xt.getExternalContext().getRequest();
    [javac]                                                 ^
    [javac] C:\Workspace\interface\JavaSource\com\ml\gmi\eas\web\actions\EntityD
etails.java:28: cannot find symbol
    [javac] symbol  : class HttpSession
    [javac] location: class com.ml.gmi.eas.web.actions.EntityDetails
    [javac]             HttpSession mySession = myRequest.getSession();
    [javac]                 ^
    [javac] 5 errors
 
BUILD FAILED
C:\Workspace\interface\ant\build.xml:61: Compile failed; see the compiler error
output for details.
 
Total time: 15 seconds

So as you can see, I can use all the help I can get. I'm using Sun Appserver if that makes a difference.

Thanks for any guidance you can give...

[ July 21, 2006: Message edited by: Henry Hund ]

[ July 21, 2006: Message edited by: Henry Hund ]
[ July 21, 2006: Message edited by: Henry Hund ]

[Rajeev Ravindran]

are you facing compilation issue ? if yes, you need to have j2ee.jar (this is what i have) or servlet.jar in your classpath

thanks,

[Henry Hund]

Thanks for your advice. That unfortunately did not work. While I have had j2ee.jar in my sun appserver /lib directory, I also just copied it to the project lib directory and referenced it in my ant build file. Unfortunately I still get the same exact error...!