javax.el.ELException

异常：javax.el.ELException: Cannot convert 9685812.5 of type class java.lang.String to class java.lang.Long

描述：就是这jsp页面将double类型转换为long类型报错

原代码：

<c:if test="${glReconoccursub.rc.debitamount == 0}">
<td></td>
</c:if>
<c:if test="${glReconoccursub.rc.debitamount != 0}">
<td>${glReconoccursub.rc.debitamount}</td>
</c:if>
<c:if test="${glReconoccursub.rc.creditamount == 0}">
<td></td>
</c:if>
<c:if test="${glReconoccursub.rc.creditamount != 0}">
<td>${glReconoccursub.rc.creditamount}</td>
</c:if>
修改后代码：

<pre name="code" class="html"><c:if test="${glReconoccursub.rc.debitamount == '0'}">
<td></td>
</c:if>
<c:if test="${glReconoccursub.rc.debitamount != '0'}">
<td>${glReconoccursub.rc.debitamount}</td>
</c:if>
<c:if test="${glReconoccursub.rc.creditamount == '0'}">
<td></td>
</c:if>
<c:if test="${glReconoccursub.rc.creditamount != '0'}">
<td>${glReconoccursub.rc.creditamount}</td>
</c:if>

我在后台的字段“debitamount”字段为String类型，debitamount == 0 判断会将debitamount转换为long类型，但是我的debitamount的值有double类型的转换就会报错，debitamount == '0'写成相同类型判断，问题就解决了，也不会报异常了。