jsp使用c:forEach报错 javax.servlet.jsp.PageContext.getELContext()Ljavax/el/ELContext的问题

时间：2023-01-07 08:36:43

今天发现了一个折磨我一天的问题：

在jsp文件中使用

<c:forEach items="${checkResult}" var="item">

</c:forEach>

一直报错：

[ERROR] 2013-12-09 15:03:20,740 method:org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:253)

Servlet.service() for servlet org.apache.jsp.baseattrib.singActivation_jsp threw exception

java.lang.AbstractMethodError: javax.servlet.jsp.PageContext.getELContext()Ljavax/el/ELContext;

        at javax.servlet.jsp.jstl.core.LoopTagSupport.unExposeVariables(LoopTagSupport.java:587)

        at javax.servlet.jsp.jstl.core.LoopTagSupport.doFinally(LoopTagSupport.java:323)

        at org.apache.jsp.baseattrib.singActivation_jsp._jspService(singActivation_jsp.java:800)

        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

        at com.zte.web.FilterEconding.doFilter(FilterEconding.java:38)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)

        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)

        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)

        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

        at java.lang.Thread.run(Thread.java:595)

但是输出单个变量没有问题，只是使用forEach时候出错

我是用的环境是：JDK1.6+tomcat1.6

解决办法：删除jstl1.2的依赖，然后添加1.1.0的依赖和standard1.1.0的依赖

pom.xml的文件修改为：

<dependency>

    <groupId>javax.servlet</groupId>

    <artifactId>jstl</artifactId>

    <version>1.1.0</version>

    <type>jar</type>

    <scope>compile</scope>

</dependency>

<dependency>

    <groupId>taglibs</groupId>

    <artifactId>standard</artifactId>

    <version>1.1.0</version>

</dependency>

原因不详

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