Question

所以我有一个搜索容器，里面有结果。该容器的最后一列是jsp列。以下是搜索容器的代码：

    <%
    PortletURL postsUrlPaginator = renderResponse.createRenderURL();
    postsUrlPaginator.setParameter( "currentID", Long.toString( currentID ) );
    postsUrlPaginator.setParameter( "jspPage", "/admin/CLAdmin.jsp" );
    postsUrlPaginator.setParameter( "mainTabs", "Categories" );
    %>

    <liferay-ui:search-container emptyResultsMessage = "there-are-no-postings" delta = "5" iteratorURL="<%= postsUrlPaginator %>" curParam="postsUrlPaginator">
        <liferay-ui:search-container-results>
            <%
            List<CLPosting> postings = CLPostingLocalServiceUtil.getLockedPostings( true );
            results = ListUtil.subList( postings, searchContainer.getStart(), searchContainer.getEnd() );
            pageContext.setAttribute( "results", results );
            pageContext.setAttribute( "total", postings.size() );
            %>
        </liferay-ui:search-container-results>

        <liferay-ui:search-container-row 
            className="com.camelslist.posting.model.CLPosting"
            keyProperty="postID"
            modelVar="posting">

            <liferay-ui:search-container-column-text 
                name="postingTitle"
                property="postTitle" />

            <liferay-ui:search-container-column-text 
                name="locked"
                property="locked" />

            <liferay-ui:search-container-column-jsp
                path="/admin/post/CLAdmin_post_actions.jsp" />

        </liferay-ui:search-container-row>
        <liferay-ui:search-iterator />
    </liferay-ui:search-container>

我在最后一列中使用了一个jsp文件（CLAdmin_post_actions.jsp）来为返回的每一行生成操作按钮。我想在为每行创建这些按钮之前将值传递给该jsp文件。

<%@include file="/init.jsp" %>

<%
ResultRow row = (ResultRow) request.getAttribute( WebKeys.SEARCH_CONTAINER_RESULT_ROW );
CLPosting posting = (CLPosting) row.getObject();
long groupId = themeDisplay.getLayout().getGroupId();
String name = CLPosting.class.getName();
String primeKey = String.valueOf( posting.getPrimaryKey() );
System.out.println( "posting: " + posting.getPostTitle() + " : " + "ID: " + Long.toString( posting.getPrimaryKey() ) );

long currentID = posting.getCategoryID();
CLCategory category = ( currentID != Long.valueOf( 0 ) ) ? CLCategoryLocalServiceUtil.getCLCategory( currentID ) : null;
long parentCatID = ( category != null ) ? category.getParentID() : Long.valueOf( 0 );
%>

<liferay-ui:icon-menu>
    <c:if test = "<%= permissionChecker.hasPermission( groupId, name, primeKey, ActionKeys.DELETE ) %>" >
        <portlet:actionURL name="deletePosting" var="deleteURL">
            <portlet:param name="resourcePrimeKey" value="<%= primeKey %>" />
            <portlet:param name="currentID" value="<%= Long.toString( currentID ) %>" />
        </portlet:actionURL>
        <liferay-ui:icon-delete url="<%= deleteURL.toString() %>" />
    </c:if>
    <c:if test="<%= permissionChecker.hasPermission(groupId, name, primeKey, ActionKeys.VIEW) %>" >
    </c:if>
    <c:if test="<%= permissionChecker.hasPermission(groupId, name, primeKey, ActionKeys.UPDATE) %>" >
        <c:if test="<%= posting.getLocked() == false %>" >
            <portlet:actionURL name="lockPosting" var="lockURL">
                <portlet:param name="resourcePrimeKey" value="<%= primeKey %>" />
                <portlet:param name="currentID" value="<%= Long.toString( currentID ) %>" />
                <portlet:param name="mainTabs" value="Categories" />
                <portlet:param name="lock" value="true" />
            </portlet:actionURL>
            <liferay-ui:icon image="lock" url="<%= lockURL.toString() %>" />
        </c:if>
        <c:if test="<%= posting.getLocked() == true %>" >
            <portlet:actionURL name="lockPosting" var="lockURL">
                <portlet:param name="resourcePrimeKey" value="<%= primeKey %>" />
                <portlet:param name="currentID" value="<%= Long.toString( currentID ) %>" />
                <portlet:param name="mainTabs" value="Categories" />
                <portlet:param name="lock" value="false" />
            </portlet:actionURL>
            <liferay-ui:icon image="unlock" url="<%= lockURL.toString() %>" />
        </c:if>
    </c:if>
    <c:if test = "<%= permissionChecker.hasPermission( groupId, name, primeKey, ActionKeys.PERMISSIONS) %>">
        <liferay-security:permissionsURL
            modelResource="<%= CLPosting.class.getName() %>"
            modelResourceDescription="<%= posting.getPostTitle() %>"
            resourcePrimKey="<%= primeKey %>"
            var="permissionsURL" />
        <liferay-ui:icon image="permissions" url="<%= permissionsURL.toString() %>" />
    </c:if>
</liferay-ui:icon-menu>

我该怎么办？我可以这样做吗？

Answer 1

我实际上自己回答了这个问题，答案非常明显（对于我认为经验丰富的portlet开发人员而言）。

我试图通过参数传递所需的值。当我使用servlets属性时，我能够获得所需的值。

以上是为了使这个答案更加明确而添加到上面的代码：

<%
//NEW LINES ADDED
String mainTabs = ParamUtil.getString( request, "mainTabs", "Categories" );
request.setAttribute( "mainTabs", mainTabs );

PortletURL postsUrlPaginator = renderResponse.createRenderURL();
postsUrlPaginator.setParameter( "currentID", Long.toString( currentID ) );
postsUrlPaginator.setParameter( "jspPage", "/admin/CLAdmin.jsp" );
postsUrlPaginator.setParameter( "mainTabs", "Categories" );
%>
//... additional code not shown

然后在CLAdmin_actions.jsp中在顶部添加以下行以检索我们的值：

String mainTabs = (String) request.getAttribute( "mainTabs" );

Liferay将参数传递给用于填充search-container-column-jsp的jsp

1 个答案: