1、错误描述

六月 09, 2014 11:11:09 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error
严重: Template processing error: "Expression a is undefined on line 27, column 23 in tag.ftl."

Expression a is undefined on line 27, column 23 in tag.ftl.
The problematic instruction:
----------
==> ${a} [on line 27, column 21 in tag.ftl]
 in user-directive tag [on line 25, column 6 in tag.ftl]
----------

Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Expression a is undefined on line 27, column 23 in tag.ftl.
	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)
	at freemarker.core.Expression.getStringValue(Expression.java:118)
	at freemarker.core.Expression.getStringValue(Expression.java:93)
	at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.visit(Environment.java:406)
	at freemarker.core.BodyInstruction.accept(BodyInstruction.java:93)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Macro$Context.runMacro(Macro.java:172)
	at freemarker.core.Environment.visit(Environment.java:614)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.process(Environment.java:199)
	at freemarker.template.Template.process(Template.java:259)
	at com.you.freemarker.FreemarkerTemplate.printFtl(FreemarkerTemplate.java:77)
	at com.you.test.freemarker.FreemarkerTest.studentPrint(FreemarkerTest.java:224)
	at com.you.test.freemarker.FreemarkerTest.testTag(FreemarkerTest.java:211)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

Expression a is undefined on line 27, column 23 in tag.ftl.
The problematic instruction:
----------
==> ${a} [on line 27, column 21 in tag.ftl]
 in user-directive tag [on line 25, column 6 in tag.ftl]
----------

Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Expression a is undefined on line 27, column 23 in tag.ftl.
	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)
	at freemarker.core.Expression.getStringValue(Expression.java:118)
	at freemarker.core.Expression.getStringValue(Expression.java:93)
	at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.visit(Environment.java:406)
	at freemarker.core.BodyInstruction.accept(BodyInstruction.java:93)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Macro$Context.runMacro(Macro.java:172)
	at freemarker.core.Environment.visit(Environment.java:614)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.process(Environment.java:199)
	at freemarker.template.Template.process(Template.java:259)
	at com.you.freemarker.FreemarkerTemplate.printFtl(FreemarkerTemplate.java:77)
	at com.you.test.freemarker.FreemarkerTest.studentPrint(FreemarkerTest.java:224)
	at com.you.test.freemarker.FreemarkerTest.testTag(FreemarkerTest.java:211)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
<html>
  <head>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <title>freemarker自定义标签</title>

  </head>

  <body>

	           <h1>张三,你好1</h1>
	           <h1>张三,你好2</h1>
	           <h1>张三,你好3</h1>
	           <h1>张三,你好4</h1>
	           <h1>张三,你好5</h1>
	           <h1>张三,你好6</h1>
	           <h1>张三,你好7</h1>
	           <h1>张三,你好8</h1>
	           <h1>张三,你好9</h1>
	           <h1>张三,你好10</h1>
	           <h1>张三,你好11</h1>
	           <h1>张三,你好12</h1>
	           <h1>张三,你好13</h1>
	           <h1>张三,你好14</h1>
	           <h1>张三,你好15</h1>
	           <h1>张三,你好16</h1>
	           <h1>张三,你好17</h1>
	           <h1>张三,你好18</h1>
	           <h1>张三,你好19</h1>
	           <h1>张三,你好20</h1>
	           <h1>张三,你好21</h1>
	           <h1>张三,你好22</h1>
	           <h1>张三,你好23</h1>
	           <h1>张三,你好24</h1>
	           <h1>张三,你好25</h1>
	           <h1>张三,你好26</h1>
	           <h1>张三,你好27</h1>
	           <h1>张三,你好28</h1>
	           <h1>张三,你好29</h1>
	           <h1>张三,你好30</h1>
	           <h1>张三,你好31</h1>
	           <h1>张三,你好32</h1>
	           <h1>张三,你好33</h1>
	           <h1>张三,你好34</h1>
	           <h1>张三,你好35</h1>
	           <h1>张三,你好36</h1>
	           <h1>张三,你好37</h1>
	           <h1>张三,你好38</h1>
	           <h1>张三,你好39</h1>
	           <h1>张三,你好40</h1>

         <ul>
           <li>1----45----78</li>
         </ul>
         <ul>
           <li>1----
Expression a is undefined on line 27, column 23 in tag.ftl.
The problematic instruction:
----------
==> ${a} [on line 27, column 21 in tag.ftl]
 in user-directive tag [on line 25, column 6 in tag.ftl]
----------

Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Expression a is undefined on line 27, column 23 in tag.ftl.
	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)
	at freemarker.core.Expression.getStringValue(Expression.java:118)
	at freemarker.core.Expression.getStringValue(Expression.java:93)
	at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.visit(Environment.java:406)
	at freemarker.core.BodyInstruction.accept(BodyInstruction.java:93)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Macro$Context.runMacro(Macro.java:172)
	at freemarker.core.Environment.visit(Environment.java:614)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.process(Environment.java:199)
	at freemarker.template.Template.process(Template.java:259)
	at com.you.freemarker.FreemarkerTemplate.printFtl(FreemarkerTemplate.java:77)
	at com.you.test.freemarker.FreemarkerTest.studentPrint(FreemarkerTest.java:224)
	at com.you.test.freemarker.FreemarkerTest.testTag(FreemarkerTest.java:211)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

2、错误原因

<#macro tag>
          <#nested 45 78/>
          <#nested/>
          <#nested/>
          <#nested/>
     </#macro>

     <@tag;a,b>
         <ul>
           <li>1----${a}----${b}</li>
         </ul>
     </@tag>

nested没有全部赋值

3、解决办法

<#macro tag>
          <#nested 45 78/>
          <#nested 56 12/>
          <#nested 23 69/>
          <#nested 44 98/>
     </#macro>

     <@tag;a,b>
         <ul>
           <li>1----${a}----${b}</li>
         </ul>
     </@tag>

结果:

<ul>
           <li>1----45----78</li>
         </ul>
         <ul>
           <li>1----56----12</li>
         </ul>
         <ul>
           <li>1----23----69</li>
         </ul>
         <ul>
           <li>1----44----98</li>
         </ul>

通过这种参数可以获取自定义指令中的变量

freemarker自定义标签报错(七)的更多相关文章

  1. freemarker自定义标签报错(四)

    freemarker自定义标签 1.错误描述 六月 05, 2014 11:31:35 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严 ...

  2. freemarker自定义标签报错(六)

    freemarker自定义标签 1.错误描述 freemarker.core.ParseException: Encountered "\"\u4f60\u597d\uff01\& ...

  3. freemarker自定义标签报错(五)

    freemarker自定义标签 1.错误描述 六月 05, 2014 11:40:49 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严 ...

  4. freemarker自定义标签报错(三)

    freemarker自定义标签 1.错误描述 freemarker.core.ParseException: Encountered " " at line 14, column ...

  5. freemarker自定义标签报错(二)

    freemarker自定义标签 1.错误描述 freemarker.core.ParseException: Unexpected end of file reached. at freemarker ...

  6. freemarker自定义标签报错(一)

    freemarker自定义标签 1.错误描述 freemarker.core.ParseException: Token manager error: freemarker.core.TokenMgr ...

  7. freemarker自定义标签报错(八)

    1.错误描述 freemarker.core.ParseException: Token manager error: freemarker.core.TokenMgrError: Unknown d ...

  8. 如何自定义JSTL标签与SpringMVC 标签的属性中套JSTL标签报错的解决方法

    如何自定义JSTL标签 1.创建一个类,从SimpleTagSupport继承 A) 通过继承可以获得当前JSP页面上的对象,如JspContext I) 实际上可以强转为PageContext II ...

  9. Java Web项目(Extjs)报错七

    1.Java Web项目(Extjs)报错七 具体报错如下:

随机推荐

  1. JAVA并发编程学习笔记------线程的三种创建方式

    创建线程一般有如下几个方式: 1. 通过继承Thread类来创建一个线程: /** * 步骤1:定义一个继承Thread类的子类 * 步骤2:构造子类的一个对象 * 步骤3:启动线程: * */ pu ...

  2. 安装与配置cacti 0.8.8b

    cacti安装与配置 一.安装所需要的软件 Apache    安装Apache文档 Mysql      安装Mysql文档 Php       安装PHP文档 Rrdtool    安装rrdto ...

  3. LOJ #116 有源汇点有上下界的最大流

    先连一条从汇点到源点的容量为INF的边,将其转化成无源汇点有上下界的可行流,判断是否可行 若可行的话删掉超级源点和超级汇点,再跑一遍最大流即可 #include <iostream> #i ...

  4. 二维码开源库ZBar-MDK STM32F429移植

    前两篇文章已经实现ZBar在Windows平台下的编译和使用,本文将介绍如何把ZBar移植到STM32F429,IDE使用MDK. 1. MDK工程设置 (1)不勾选Use MicroLIB ,使用I ...

  5. openvpn服务器一键脚本生成客户端文件

    #!/bin/bash #获取参数 while getopts "n:" opt; do case $opt in n) client_name=$OPTARG ;; \?) ;; ...

  6. Git 如何 clone 非 master 分支的代码

    问题描述 我们每次使用命令 git clone git@gitlab.xxx.com:xxxxx.git 默认 clone 的是这个仓库的 master 分支.如果最新的代码不在 master 分支上 ...

  7. 940C Phone Numbers

    传送门 题目大意 给你两个数字n和k,给你一个字符串s,n是s的长度,求字母集合是s的字母集合子集的字典序大于s的长度为k的字典序最小的字符串t 分析 将字符转化为数字,然后分两种情况处理: 1.n& ...

  8. 【Unity3D技术文档翻译】第1.7篇 AssetBundles 补丁更新

    上一章:[Unity3D技术文档翻译]第1.6篇 使用 AssetBundle Manager 本章原文所在章节:[Unity Manual]→[Working in Unity]→[Advanced ...

  9. WordUtil java导出word工具类

    import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.BufferedWriter ...

  10. 基于netty框架的Socket传输

    一.Netty框架介绍 什么是netty?先看下百度百科的解释:         Netty是由JBOSS提供的一个java开源框架.Netty提供异步的.事件驱动的网络应用程序框架和工具,用以快速开 ...