Examples of org.apache.struts2.components.Param

org.apache.struts2.components.ComponentUrlProvider

s.apache.org/jira/browse/WW-808">WW-808.

Examples

 <ui:component> <ui:param name="key"     value="[0]"/> <ui:param name="value"   value="[1]"/> <ui:param name="context" value="[2]"/> </ui:component>

Whether to suppress empty parameters:

 <s:a action="eventAdd" accesskey="a"> <s:text name="title.heading.eventadd" /> <s:param name="bean.searchString" value="%{bean.searchString}" /> <s:param name="bean.filter" value="%{bean.filter}" /> <s:param name="bean.pageNum" value="%{pager.pageNumber}" /> <s:param name="suppressEmptyParameters" value="true"/> </s:a>

where the key will be the identifier and the value the result of an OGNL expression run against the current ValueStack.

This second example demonstrates how the text tag can use parameters from this param tag.

 <s:text name="cart.total.cost"> <s:param value="#session.cartTotal"/> </s:text>

@see Include @see Bean @see Text

    assert (body != null);


    try {
      writer.write(body);
    } catch (IOException e) {
      throw new StrutsException("IOError while writing the body: " + e.getMessage(), e);
    }
    if (popComponentStack) {
      popComponentStack();
    }
    return false;

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        + getComponentName()
        + "', field '"
        + field
        + (parameters != null && parameters.containsKey("name") ? "', name '"
            + parameters.get("name") : "") + "': " + errorMsg;
    throw new StrutsException(msg, e);
  }

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      }
      try {
        objectFactory.getClassInstance(actionClass.getName());
      } catch (ClassNotFoundException e) {
        logger.error("Object Factory was unable to load class {}", actionClass.getName());
        throw new StrutsException("Object Factory was unable to load class " + actionClass.getName(),
            e);
      }
      String[] beanNames = beanNameFinder.getBeanNames(actionClass);
      switch (beanNames.length) {
      case 0:

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                if(it.hasNext()) {
                    sb.append("&");
                }
            }
            } catch (UnsupportedEncodingException e) {
                throw new StrutsException("Encoding "+ENCODING+" not found");
            }
        }
        RenderResponse resp = PortletActionContext.getRenderResponse();
        RenderRequest req = PortletActionContext.getRenderRequest();
        return resp.encodeURL(req.getContextPath() + sb.toString());

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                mapping = actionMapper.getMapping(httpRequest, dispatcherUtils.getConfigurationManager());
            }
        }
        
        if (mapping == null) {
            throw new StrutsException("Unable to locate action mapping for request, probably due to " +
                    "an invalid action path: "+actionPath);
        }
        return mapping;
    }

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                }
                if (count-- <= 0) {
                    locks.remove(o);
                    o.notify();


                    throw new StrutsException("Deadlock in session lock");
                }
                o.wait(10000);
            }
            ;
            locks.put(o, invocation);

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    }


    @Override
    protected void setUp() throws Exception {
        super.setUp();
        tag = new Checkbox(stack, request, response);
    }

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        // JAVASCRIPT ?
        if (action.startsWith("javascript:"))
            return action;


        // Init URL Provider
        UrlProvider urlProvider = new ComponentUrlProvider(this, parameters);
        urlProvider.setHttpServletRequest(request);
        urlProvider.setHttpServletResponse(response);
        urlProvider.setUrlRenderer(urlRenderer);
      urlProvider.setPortletUrlType(urlType);
        urlProvider.setAction(action);
        // render URL
        StringWriter sw = new StringWriter();
        urlRenderer.beforeRenderUrl(urlProvider);
        urlRenderer.renderUrl(sw, urlProvider);
        String url = sw.toString();

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        // JAVASCRIPT ?
        if (actionName.startsWith("javascript:"))
            return actionName;


        // Init URL Provider
        UrlProvider urlProvider = new ComponentUrlProvider(this, params);
        urlProvider.setHttpServletRequest(request);
        urlProvider.setHttpServletResponse(response);
        urlProvider.setUrlRenderer(urlRenderer);
      // urlProvider.setPortletUrlType(urlType);
        urlProvider.setAction(actionName);
        // render URL
        StringWriter sw = new StringWriter();
        urlRenderer.beforeRenderUrl(urlProvider);
        urlRenderer.renderUrl(sw, urlProvider);
        String url = sw.toString();

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        // JAVASCRIPT ?
        if (actionName.startsWith("javascript:"))
            return actionName;


        // Init URL Provider
        UrlProvider urlProvider = new ComponentUrlProvider(this, params);
        urlProvider.setHttpServletRequest(request);
        urlProvider.setHttpServletResponse(response);
        urlProvider.setUrlRenderer(urlRenderer);
      // urlProvider.setPortletUrlType(urlType);
        urlProvider.setAction(actionName);
        // render URL
        StringWriter sw = new StringWriter();
        urlRenderer.beforeRenderUrl(urlProvider);
        urlRenderer.renderUrl(sw, urlProvider);
        String url = sw.toString();

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