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使用JSP的JSTL标签，不知道什么原因导致forEach标签和choose标签无法检测到结束。
我能确定这两个标签都是正常结束的。
下面的forEach choose when标签逐个删除都报错。这样的写法，我用在了多个项目中，都没有出现这个问题，这次掉坑里了。完全不知道错在什么地方。 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ include file="/comm/jstl.jsp" %> <form class="form-horizontal form-bordered" role="form" method="post" action="${actionUrl}"> <div class="form-group"> <label for="txtBrandNo" class="col-sm-2 control-label no-padding-right">品牌</label> <div class="col-sm-10"> <select name="brandId" class="form-control" id="selectBrandId" data-rule="required;"> <option value="">请选择品牌</option> <c:forEach items="${brands}" var="brand"> <c:choose> <c:when test="${brand.brandId==model.brandId}"> <option value="${brand.brandId" selected>${brand.brandName}</option> </c:when> <c:otherwise> <option value="${brand.brandId">${brand.brandName}</option> </c:otherwise> </c:choose> </c:forEach> </select> </div> <span class="msg-box" for="selectBrandId"></span> </div> <div class="form-group"> <label for="txtBrandNo" class="col-sm-2 control-label no-padding-right">型号编号</label> <div class="col-sm-10"> <input type="text" class="form-control" id="txtModelNo" placeholder="品牌编号" data-rule="required;" value="${model.modelNo}"> </div> <span class="msg-box" for="txtModelNo"></span> </div> <div class="form-group"> <label for="txtBrandName" class="col-sm-2 control-label no-padding-right">型号名称</label> <div class="col-sm-10"> <input type="text" class="form-control" id="txtModelName" placeholder="品牌名称" data-rule="required;" value="${model.modelName}"> </div> <span class="msg-box" for="txtModelName"></span> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <button type="submit" class="btn btn-palegreen">提交</button> </div> </div> </form>
错误日志：
2018-05-01 22:08:56 ERROR [http-bio-8080-exec-9] com.jfinal.core.ActionHandler - /models/toDoAction com.jfinal.render.RenderException: org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: org.apache.jasper.JasperException: /admin/product/modelForm.jsp (line: 42, column: 2) Unterminated <c:when tag at com.jfinal.render.JspRender.render(JspRender.java:69) at com.jfinal.core.ActionHandler.handle(ActionHandler.java:97) at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:72) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: org.apache.jasper.JasperException: /admin/product/modelForm.jsp (line: 42, column: 2) Unterminated <c:when tag at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339) at com.jfinal.render.JspRender.render(JspRender.java:67) ... 18 more Caused by: javax.servlet.ServletException: javax.servlet.jsp.JspException: org.apache.jasper.JasperException: /admin/product/modelForm.jsp (line: 42, column: 2) Unterminated <c:when tag at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:908) at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:841) at org.apache.jsp.admin.product.modelAdd_jsp._jspService(modelAdd_jsp.java:144) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) ... 31 more Caused by: org.apache.jasper.JasperException: /admin/product/modelForm.jsp (line: 42, column: 2) Unterminated <c:when tag at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42) at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:443) at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:133) at org.apache.jasper.compiler.Parser.parseBody(Parser.java:1677) at org.apache.jasper.compiler.Parser.parseOptionalBody(Parser.java:1002) at org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1274) at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1452) at org.apache.jasper.compiler.Parser.parseBody(Parser.java:1664) at org.apache.jasper.compiler.Parser.parseOptionalBody(Parser.java:1002) at org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1274) at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1452) at org.apache.jasper.compiler.Parser.parseBody(Parser.java:1664) at org.apache.jasper.compiler.Parser.parseOptionalBody(Parser.java:1002) at org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1274) at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1452) at org.apache.jasper.compiler.Parser.parse(Parser.java:138) at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:242) at org.apache.jasper.compiler.ParserController.parse(ParserController.java:102) at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:373) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:605) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:544) at org.apache.taglibs.standard.tag.common.core.ImportSupport.acquireString(ImportSupport.java:314) at org.apache.taglibs.standard.tag.common.core.ImportSupport.doEndTag(ImportSupport.java:171) at org.apache.jsp.admin.product.modelAdd_jsp._jspx_meth_c_005fimport_005f2(modelAdd_jsp.java:334) at org.apache.jsp.admin.product.modelAdd_jsp._jspService(modelAdd_jsp.java:123) ... 34 more