JSTL继续，破解里面的foreach [英] JSTL continue, break inside foreach

问题描述

我想在JSTL的foreach里面插入continue。请让我知道是否有办法实现这一点。

 < c：forEach 
 var =List 
 items =$ {requestScope.DetailList}
 varStatus =counter
 begin =0> 
 
 <<<<继续>>> 
< / c：if> 
  

我想在if条件中插入continue。

解决方案

没有这样的事情。只要对你想要显示的内容进行反转即可。所以不要做

pre code>< c：forEach items =$ {requestScope.DetailList}var =list> ;
< c：if test =$ {list.someType eq'aaa'or list.someType eq'AAA'}>
<<<<继续>>>
< / c：if>
< p> someType不是aaa或AAA< / p>
< / c：forEach>

而不是

 < c：forEach items =$ {requestScope.DetailList}var =list> 
 < p> someType不是aaa或AAA< / p> 
< / c：if> 
< / c：forEach> 
  

或

 < c：forEach items =$ {requestScope.DetailList}var =list> 
 < p> someType不是aaa或AAA< / p> 
< / c：if> 
< / c：forEach> 
  

请注意，我在代码中也修正了一个EL语法错误。

I want to insert "continue" inside foreach in JSTL. Please let me know if there is a way to achieve this.

<c:forEach 
  var="List"
  items="${requestScope.DetailList}" 
  varStatus="counter"
  begin="0">

  <c:if test="${List.someType == 'aaa' || 'AAA'}">
    <<<continue>>>
  </c:if>

I want to insert the "continue" inside the if condition.

解决方案

There's no such thing. Just do the inverse for the content you actually want to display. So don't do

<c:forEach items="${requestScope.DetailList}" var="list">
    <c:if test="${list.someType eq 'aaa' or list.someType eq 'AAA'}">
        <<<continue>>>
    </c:if>
    <p>someType is not aaa or AAA</p>
</c:forEach>

but rather do

<c:forEach items="${requestScope.DetailList}" var="list">
    <c:if test="${not (list.someType eq 'aaa' or list.someType eq 'AAA')}">
        <p>someType is not aaa or AAA</p>
    </c:if>
</c:forEach>

or

<c:forEach items="${requestScope.DetailList}" var="list">
    <c:if test="${list.someType ne 'aaa' and list.someType ne 'AAA'}">
        <p>someType is not aaa or AAA</p>
    </c:if>
</c:forEach>

Please note that I fixed an EL syntax error in your code as well.

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