JSP JSTL标签 Unterminated <c:when tag错误要疯了。?报错
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
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https://developer.aliyun.com/profile/5yerqm5bn5yqg?spm=a2c6h.12873639.0.0.6eae304abcjaIBotherwise|option|value 少了 } 确实少了个右大括号 天啊，居然还在用JSP 我个人觉得还是抛弃JSP这种在服务器上做html生成的方式，毕竟服务器资源有限，让服务器专注于业务逻辑处理。 jsp性能好，你有不同意见吗？ <div class='ref'><h4>引用来自“爱蔚兰真好”的评论</h4>otherwise|option|value 少了 } 汗，确实不应该发生的错误。这个是编码习惯造成的。论好习惯的重要性。 <div class='ref'><h4>引用来自“龙影”的评论</h4>天啊，居然还在用JSP <a target='_blank'>@CapJes</a> 回复<a class="referer" target="_blank">@CapJes</a> : 这就得要看领导是否有那协调能力了，前后端分离，其实对设计者要求会更高些。但是对于软件来说是好事。对应好接口来开发何尝不是件好事？so，先定义好合理的接口。 <a target='_blank'>@CapJes</a> 回复<a class="referer" target="_blank">@CapJes</a> : 没说前后分离就必须分工到两种人。这个看前后端选型及搭配是否适合一个人同时做。反正我现在的方式一个人全包。因为简单，培训下组员，很快上手开发。 回复 <a class="referer" target="_blank">@龙影</a> : 一个人做前后全包了，去做前后分离，反而麻烦。 回复<a class="referer" target="_blank">@CapJes</a> : 也不是说它不好，只是说要看如何使用。毕竟现在前端技术那么多可以选择。开发效率和综合性能方面来考量选择的。2020-06-07 16:47:08赞同 展开评论 打赏
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