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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
jsp使用c:forEach报错 javax.servlet.jsp.PageContext.getELContext()Ljavax/el/ELContext的问题
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原文地址：http://www.cnblogs.com/liqiu/p/4338108.html
