Question

我在所有页面都有一个公共标题，除了一些页面右侧标题有一些选项。例如，我标题的右侧将有如下选项：Block，Compose，Edit取决于页面。是否可以从tiles-config.xml设置此 headerShowIcons ，然后在rhsHeader.jsp中使用它。

有什么方法可以将一些值从tiles-config.xml传递给rhsHeader.jsp，并根据该值我想显示该选项（即阻止，编辑或删除）

示例：如果我想向用户显示Compose选项，我只需从tiles-config.xml传递值（即headerShowIcons =＆＃39;撰写＆＃39;）并在JSP中使用它。如果我想显示Block我会传递headerShowIcons =＆＃39; block＆＃39; rhsHeader.jsp将读取它以显示Block选项。我希望这会更清楚

瓦片-config.xml中

<definition name="*/*/*/*/*/index" template="/{1}/{2}/xyz/{4}/layouts/layout.jsp">
    <put-attribute name="lhsHeader" value="/{1}/{2}/xyz/s/headerWithBack.jsp" />
    <put-attribute name="rhsHeader" value="/{1}/{2}/xyz/s/rhsHeader.jsp"/>
    <put-attribute name="body" value="/{1}/{2}/xyz/s/myProfile.jsp" />
</definition>

layout.jsp

<!-- What should I add here to meet the requirement -->  
 <body>
   <header> 
      <div>
        <tiles:insertAttribute name="header"/>
        <tiles:insertAttribute name="rhsHeader"/>   
       </div>
   </header>
    <div>
       <tiles:insertAttribute name="body"/>
   </div>
  </body>

rhsHeader.jsp 是这样的：

 <tiles:useAttribute name="headerShowIcons" />
 <div class="RHS">
<ul>
<!-- I want to show the options (like- Block,Delete,etc) which will be passed from tiles-config.xml to rhsHeader.jsp (which here I have written it as headerShowIcons )-->
    <c:choose>
        <c:when test="${headerShowIcons  eq 'refine'}">
            <li><a href="#" class="refine">Refine</a></li>
        </c:when>
        <c:when test="${headerShowIcons  eq 'block'}">
            <li><a href="#" class="block">Block</a></li>
        </c:when>
        <c:when test="${headerShowIcons  eq 'edit'}">
            <li><a href="javaScript:void(0);" class="edit">Edit</a></li>
        </c:when>
        <c:when test="${headerShowIcons  eq 'delete'}">
            <li><a href="javaScript:void(0);" class="delete">Delete</a></li>
        </c:when>
        <c:otherwise>
                 <p>test</p>
        </c:otherwise>
    </c:choose>
</ul>

Answer 1

我终于找到了做到这一点的解决方案，我相信这对有这种要求的人有帮助：

我们必须使用

headerLayout.jsp

中的

<tiles:useAttribute name="whatToShow"/>
  <header> 
    <div>
      <tiles:insertAttribute name="lhsHeader" />
      <tiles:insertAttribute name="rhsHeader">
          <tiles:putAttribute name="whatToShow">${whatToShow}</tiles:putAttribute> 
        </tiles:insertAttribute>
    </div>
   </header>
 <div>
     <tiles:insertAttribute name="body"/>
 </div>

在 tiles-config.jsp

中

 <definition name="Header.*" template="/{1}/layouts/headerLayout.jsp">
    <put-attribute name="lhsHeader" value="/s/headerWithBack.jsp"/>
    <put-attribute name="rhsHeader" value="/s/rhsHeader.jsp"/>  
    <put-attribute name="body" value=""/>
    <put-attribute name="whatToShow" value="block" type="string"/>
</definition>
<!-- inside the definition under whatToShow, I just write whatever value(block,edit,delete,etc) I want to pass to the rhsHeader.jsp -->

rhsHeader.jsp

中的

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<tiles:useAttribute name="whatToShow"/>
<div class="RHS">
<ul>
    <c:choose>
        <c:when test="${whatToShow  eq 'refine'}">
            <li><a href="#" class="refine">Refine</a></li>
        </c:when>
        <c:when test="${whatToShow  == 'block'}">
            <li><a href="#" class="block">Block</a></li>
        </c:when>
        <c:when test="${whatToShow  eq 'edit'}">
            <li><a href="javaScript:void(0);" class="edit">Edit</a></li>
        </c:when>
        <c:when test="${whatToShow  eq 'delete'}">
            <li><a href="javaScript:void(0);" class="delete">Delete</a></li>
        </c:when>
        <c:otherwise>
                 <p></p>
        </c:otherwise>
    </c:choose>
  </ul>
</div>

PS：我使用了whatToShow而不是headerShowIcons

Answer 2

我会选择不同的方式，但如果它是你想要的，请参阅下面的

<强>瓦片-config.xml中

#include "common.h"
#include <vector>

// Global variable: list of function pointers in host memory
std::vector<fptr_t> vec_fList;

// Add function to functions list
void addFunc(fptr_t f) {vec_fList.push_back(f);}

// Upload the functions in the std::vector<fptr_t> to GPU memory
// Copies CPU-side pointers to constant_fList, therefore crashes on kernel call 
void UploadVector() {
  fptr_t* h_vpointer = vec_fList.data();
  gpuErrchk( cudaMemcpyToSymbol(constant_fList, h_vpointer, vec_fList.size() * sizeof(fptr_t)) );
}

int main() {

  addFunc(Add);
  addFunc(Subtract);
  addFunc(Multiply);
  int a = 12, b = 15;

  UploadVector();

  kernel<<<1,3>>>(a, b); // Wrong to call a host-side function pointer from a kernel
  gpuErrchk(cudaGetLastError());
  gpuErrchk(cudaDeviceSynchronize());

  return 0;
}

<强>针对home.jsp

f(a,b)

如果您希望可以将其移动到layout.jsp并相应地显示您的标题

Apache Tiles 2.2.2将tiles-config.xml中的值传递给JSP

2 个答案: