freemarker报错之十四

1、错误描述

<html>
  <head>
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <title>freemarker处理哈希表的内建函数</title>
 
  </head>
 
  <body>
     	 张三强
 
Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl.
The problematic instruction:
----------
==> list maps as map [on line 13, column 10 in map.ftl]
----------
 
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl.
	at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
	at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:190)
	at freemarker.core.Environment.visit(Environment.java:428)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
	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:210)
	at com.you.test.freemarker.FreemarkerTest.testMap(FreemarkerTest.java:197)
	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$2.evaluate(ParentRunner.java:222)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
六月 04, 2014 10:52:14 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error
严重: Template processing error: "Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl."
 
Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl.
The problematic instruction:
----------
==> list maps as map [on line 13, column 10 in map.ftl]
----------
 
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl.
	at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
	at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:190)
	at freemarker.core.Environment.visit(Environment.java:428)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
	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:210)
	at com.you.test.freemarker.FreemarkerTest.testMap(FreemarkerTest.java:197)
	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)
 
Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl.
The problematic instruction:
----------
==> list maps as map [on line 13, column 10 in map.ftl]
----------
 
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. maps evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 13, column 17 in map.ftl.
	at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
	at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:190)
	at freemarker.core.Environment.visit(Environment.java:428)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
	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:210)
	at com.you.test.freemarker.FreemarkerTest.testMap(FreemarkerTest.java:197)
	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

maps不是一个序列，不能用list遍历map

 <#--freemarker HashMap取值-->
<#assign maps={"1":"张三丰","2":"李思思","3":"张三强","4":"王五"}>
${maps["3"]}
 
<#list maps as map>
 ${map}
</#list>

3、解决办法

先获取map中的key值，再通过key值序列遍历map

<#--freemarker HashMap取值-->
	 <#assign maps={"1":"张三丰","2":"李思思","3":"张三强","4":"王五"}>
	 ${maps["3"]}
 
	 <#assign keys=maps?keys>
	 <#list keys as key>
	    ${key}----${maps[key]}
	 </#list>

freemarker报错之十四的更多相关文章

freemarker报错之十五
1.错误描述六月 04, 2014 11:04:03 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template proc ...
freemarker报错之十二
1.错误描述六月 04, 2014 10:31:47 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template proc ...
freemarker报错之十
1.错误描述 <html> <head> <meta http-equiv="content-type" content="text/htm ...
freemarker报错之四
1.错误描述五月 28, 2014 9:56:48 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template proce ...
freemarker报错之七
1.错误描述五月 30, 2014 11:33:57 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template proc ...
关于SpringMVC整合freemarker报错问题
错误信息: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'FreeMa ...
freemarker写select组件报错总结（四）
1.错误描述 <html> <head> <meta http-equiv="content-type" content="text/htm ...
freemarker报错之三
1.错误描写叙述 Expression students is undefined on line 30, column 24 in student.ftl. The problematic inst ...
freemarker报错之八
1.错误描写叙述 freemarker.core.ParseException: Encountered "string" at line 21, column 21 in typ ...

随机推荐

Linux 下编译安装xDebug命令速记
下载xdebug-2.2.4.tgz软件链接: http://pan.baidu.com/s/1jGHYRMA #解压 xdebugtar -zxvf xdebug-2.2.4.tgz #进入xdeb ...
vue项目实战总结
马上过年了,最近工作不太忙,再加上本人最近比较懒,毫无斗志,不愿学习新东西,或许是要过年的缘故(感觉像是在找接口). 就把前一段时间做过的vue项目,进行一次完整的总结. 这次算是详细总结,会从项目的 ...
济南清北学堂游记 Day 4.
不知不觉,行程已经过半了啊. 基本上已经熟悉了这里的环境,这其实也意味着我应该很快就要走了. 明天和后天还有最后四场模拟赛,虽然以我的实力拿不到奖,但我也会尽力做好我自己. 我大概反思了一下这几天,其 ...
controller 单元测试
一般而言,我们写好一个模块后,会对其进行单元测试,再集成到现有的系统中. 但是呢~针对Controller.Service.Dao三层来说,我们最常的是对Service和Dao进行单元测试.然而Con ...
Windows Azure Storage (25) Azure Append Blob
<Windows Azure Platform 系列文章目录> 在笔者之前的文章中,我们介绍了Azure Blob 有两种:Block Blob和Page Blob. 在这里笔者介绍Blo ...
JDBC【数据库连接池、DbUtils框架、分页】
1.数据库连接池什么是数据库连接池简单来说:数据库连接池就是提供连接的... 为什么我们要使用数据库连接池数据库的连接的建立和关闭是非常消耗资源的频繁地打开.关闭连接造成系统性能低下编写连接 ...
使用ssh 登录Linux 文件上传下载方法
最简单的方法: 安装WinSCP或者Filezilla, 启动该程序,然后自己输入输入主机名.端口.用户名.密码登录,然后在putty里面用pwd命令看看当前目录,再在WinSCP/Filezilla ...
php与web页面交互(二)
一.获取表单数据 1.1 使用POST()方法提交表单 ---POST()方法可以没有限制地传递数据到服务器,所提交的数据在后台传输,用户在浏览器端是看不到这一过程的,安全性高,适用于发送保密数据和 ...
eclipse CDT unresolved inclusion
原因:c\c++库未设置所导致的解决办法:1.先配置环境变量:打开window->preference->c\c++bulid->environment->add-> ...
【vim】插件管理及代码智能提示与补全环境的配置
1. 引言可以使用脚本/插件来给vim添加各种神奇的功能,从更换颜色主题.到代码智能提示,甚至项目管理.无数开发者通过开源社区贡献自己开发的插件,使得vim有可能变得无比强大.这儿http://vi ...

freemarker报错之十四

freemarker报错之十四的更多相关文章

随机推荐

热门专题