Does your Product class have a getId() method? On 10/21/07, Rob Hills <[EMAIL PROTECTED]> wrote: > Hi All, > > I have a weird error on a Listing JSP that's had me stumped for several hours. > > I have a POJO named "Product" and have built associated ProductDao, > ProductDaoHibernate, ProductManager, ProductManagerImpl > and ProductAction classes, as well as tests for Dao, Manager and Action. > I have a ProductList.jsp and I believe I've correctly configured all the > "glue" bits (bean defninitions in applicationContext.xml, action > definitions in struts.xml etc.). > > All tests pass OK and the web app starts up (Jetty + HSQLDB). > > However, when I go to view my products list, I get a blank page and the > following error: > > [myapp] WARN [btpool0-1] LookupUtil.<init>(99) | Exception: [.LookupUtil] > Error looking up property "id" in object type > "java.lang.String". Cause: Unknown property 'id' > java.lang.NoSuchMethodException: Unknown property 'id' > at > org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1122) > at > org.apache.commons.beanutils.PropertyUtils.getSimpleProperty(PropertyUtils.java:408) > at org.displaytag.util.LookupUtil.getProperty(LookupUtil.java:271) > at org.displaytag.util.LookupUtil.getBeanProperty(LookupUtil.java:129) > at org.displaytag.model.Column.getValue(Column.java:124) > at > org.displaytag.model.Column.createChoppedAndLinkedValue(Column.java:201) > at org.displaytag.model.Column.initialize(Column.java:178) > at > org.displaytag.render.TableWriterTemplate.writeTableBody(TableWriterTemplate.java:313) > at > org.displaytag.render.TableWriterTemplate.writeTable(TableWriterTemplate.java:138) > at > org.displaytag.render.HtmlTableWriter.writeTable(HtmlTableWriter.java:643) > at org.displaytag.tags.TableTag.writeHTMLData(TableTag.java:1557) > at org.displaytag.tags.TableTag.doEndTag(TableTag.java:1206) > at > org.apache.jsp.WEB_002dINF.pages.admin.productList_jsp._jspService(org.apache.jsp.WEB_002dINF.pages.admin.productList_jsp: > 206) > <.. lots more ..> > > Unfortunately, at no point does the stacktrace drop into any of my own > classes, nor do any of my debug messages appear. > > The following snippet is from my ProductList.jsp: > > <c:set var="products" value="products" scope="request"/> > <display:table name="products" class="table" requestURI="" id="productList" > export="true" pagesize="25"> > <display:column property="id" sortable="true" href="editProduct.html" > media="html" > paramId="id" paramProperty="id" titleKey="product.id"/> > <display:column property="id" media="csv excel xml pdf" > titleKey="product.id"/> > <display:column property="name" sortable="true" > titleKey="product.name"/> > <.. lots more ..> > > My initial interpretation of the error message is that the "products" list > being returned by the c:set line in the jsp is actually coming in as > a list of strings and the server is complaining that the first String doesn't > contain an ID (which it wouldn't of course). However, I've been > back through my classes and the relevant methods are definitely returning > List<Product>. > > The first line of my ProductAction.list() method is a log.debug call that > never prints to the log so I'm at a loss to figure out what's going > on. > > Has anyone else seen anything like this before? Any thoughts on what might > be causing this problem, or where I should look? > > TIA, > Rob Hills > Waikiki, Western Australia > Mobile +61 (412) 904-357 > Fax: +61 (8) 9529-2137 > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
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