我正在将 Web 应用程序从 Websphere 6.1 迁移到 Websphere 8，并且在我的一个 JSP 页面中遇到以下错误:
com.ibm.ws.jsp.translator.JspTranslationException: JSPG0227E: Exception caught while translating /jsp/myJsp.jsp: /jsp/myJsp.jsp(863,4) --> JSPG0122E: Unable to parse EL function ${not empty rowVo.operation.package}. at com.ibm.ws.jsp.translator.visitor.validator.ELValidator.validateElFunction(ELValidator.java:500) at com.ibm.ws.jsp.translator.visitor.validator.ELValidator.validateELExpression(ELValidator.java:122) at com.ibm.ws.jsp.translator.visitor.validator.ELValidator.validateELExpression(ELValidator.java:149) at com.ibm.ws.jsp.translator.visitor.validator.ValidateVisitor.validateCustomTagAttribute(ValidateVisitor.java:1757) at com.ibm.ws.jsp.translator.visitor.validator.ValidateVisitor.validateCustomTagAttributeValues(ValidateVisitor.java:1405) at com.ibm.ws.jsp.translator.visitor.validator.ValidateVisitor.visitCustomTagStart(ValidateVisitor.java:294) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:366) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processChildren(JspVisitor.java:419) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:369) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processChildren(JspVisitor.java:419) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:369) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processChildren(JspVisitor.java:419) at com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:234) at com.ibm.ws.jsp.translator.visitor.JspVisitor.visit(JspVisitor.java:216) at com.ibm.ws.jsp.translator.JspTranslator.processVisitors(JspTranslator.java:127) at com.ibm.ws.jsp.translator.utils.JspTranslatorUtil.translateJsp(JspTranslatorUtil.java:254) at com.ibm.ws.jsp.translator.utils.JspTranslatorUtil.translateJspAndCompile(JspTranslatorUtil.java:121)
JSP 文件中有问题的部分如下所示:
<c:forEach var="rowVo"
items="${searchResultContainer.searchResultRowsPage}"
varStatus="opStatus">
<c:if test="${not empty rowVo.operation.jobscopeDescription}">
<td>${rowVo.operation.jobscopeDescription}</td>
</c:if>
<c:if test="${not empty rowVo.operation.package}">
<td>${rowVo.operation.package}</td>
</c:if>
</c:forEach>
真正让我困惑的是，异常是从第三个 EL 表达式中抛出的，而第二个表达式几乎相同。
Operation 是生成的类:
public class Operation {
//Other properties omitted
@XmlElement(name = "package")
protected List<Package> _package;
protected List<String> jobscopeDescription;
public List<Package> getPackage() {
if (_package == null) {
_package = new ArrayList<Package>();
}
return this._package;
}
public List<String> getJobscopeDescription() {
if (jobscopeDescription == null) {
jobscopeDescription = new ArrayList<String>();
}
return this.jobscopeDescription;
}
}
这些文件在迁移过程中没有改变，并且在 WAS 6.1 上运行良好。有谁知道这里出了什么问题吗？
最佳答案
负责检查将保留关键字用作 EL 变量标识符的代码在 WebSphere Application Server v8.0 及更高版本中得到了增强，使检查更加严格。变量检查代码不仅检查 EL 保留关键字，还检查 Java 保留关键字。
有关详细信息，请参阅本文:http://www-01.ibm.com/support/docview.wss?uid=swg21642419&myns=swgws&mynp=OCSSEQTP&mync=A
关于java - JSPG0122E : Unable to parse EL function in Websphere 8，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17744158/