freemarker写select组件报错总结（七）
1、错误描述
六月 26, 2014 11:26:27 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error
严重: Template processing error: "Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl."
Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
The problematic instruction:
----------
==> list datas as data [on line 7, column 11 in inc/select.ftl]
in user-directive items.select [on line 14, column 6 in address.ftl]
----------
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:190)
at freemarker.core.Environment.visit(Environment.java:428)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
at freemarker.core.Environment.visit(Environment.java:221)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:221)
at freemarker.core.Macro$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:267)
at com.you.test.freemarker.FreemarkerTest.testSelect(FreemarkerTest.java:253)
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 下拉框</title>
</head>
<body>
<select id="city" name="city">
<option>---请选择---</option>
<option value="武汉市">武汉市</option>
<option value="黄石市">黄石市</option>
<option value="黄冈市">黄冈市</option>
<option value="荆州市">荆州市</option>
</select>
<select id="zhuanye" name="zhuanye">
<option>---请选择---</option>
<option value="请选择专业">请选择专业</option>
<option value="计算机科学与技术" selected>计算机科学与技术</option>
<option value="物流工程">物流工程</option>
<option value="英语专业">英语专业</option>
</select>
<select id="user" name="user">
<option>---请选择---</option>
<option value="1">张三丰</option>
<option value="2">李思思</option>
<option value="3">赵武</option>
<option value="4">刘雪</option>
<option value="5">朱顾</option>
<option value="6">赵武</option>
<option value="7">吴语</option>
<option value="8">血玉</option>
</select>
<select id="username" name="username">
<option>---请选择---</option>
<option value="0">其他</option>
<option value="1">张三丰</option>
<option value="2">李思思</option>
<option value="3">赵武</option>
<option value="4">刘雪</option>
<option value="5">朱顾</option>
<option value="6">赵武</option>
<option value="7">吴语</option>
<option value="8">血玉</option>
</select>
<select id="sex" name="sex">
<option>---请选择---</option>
Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
The problematic instruction:
----------
==> list datas as data [on line 7, column 11 in inc/select.ftl]
in user-directive items.select [on line 14, column 6 in address.ftl]
----------
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
at freemarker.core.IteratorBlock$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.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:267)
at com.you.test.freemarker.FreemarkerTest.testSelect(FreemarkerTest.java:253)
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$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
The problematic instruction:
----------
==> list datas as data [on line 7, column 11 in inc/select.ftl]
in user-directive items.select [on line 14, column 6 in address.ftl]
----------
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
at freemarker.core.IteratorBlock$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.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:267)
at com.you.test.freemarker.FreemarkerTest.testSelect(FreemarkerTest.java:253)
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$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
六月 26, 2014 11:26:27 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error
严重: Template processing error: "Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl."
Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
The problematic instruction:
----------
==> list datas as data [on line 7, column 11 in inc/select.ftl]
in user-directive items.select [on line 14, column 6 in address.ftl]
----------
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
at freemarker.core.IteratorBlock$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.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.printFile(FreemarkerTemplate.java:109)
at com.you.test.freemarker.FreemarkerTest.studentFile(FreemarkerTest.java:281)
at com.you.test.freemarker.FreemarkerTest.testSelect(FreemarkerTest.java:254)
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$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
The problematic instruction:
----------
==> list datas as data [on line 7, column 11 in inc/select.ftl]
in user-directive items.select [on line 14, column 6 in address.ftl]
----------
Java backtrace for programmers:
----------
freemarker.template.TemplateException: Expected collection or sequence. datas evaluated instead to freemarker.core.HashLiteral$SequenceHash on line 7, column 18 in inc/select.ftl.
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:136)
at freemarker.core.IteratorBlock$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.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.printFile(FreemarkerTemplate.java:109)
at com.you.test.freemarker.FreemarkerTest.studentFile(FreemarkerTest.java:281)
at com.you.test.freemarker.FreemarkerTest.testSelect(FreemarkerTest.java:254)
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$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
2、错误原因
期望的是集合或序列，但是给的是HashMap
3、解决办法
<#macro select id datas value="" key="" text="" headKey="" headValue="">
<select id="${id}" name="${id}">
<option>---请选择---</option>
<#if headKey!="">
<option value="${headKey}">${headValue}</option>
</#if>
<#if datas?is_hash_ex>
<#local keys=datas?keys/>
<#list keys as key>
<#if key==value>
<option value="${key}" selected>${datas[key]}</option>
<#else>
<option value="${key}">${datas[key]}</option>
</#if>
</#list>
<#else>
<#list datas as data>
<#if key!="">
<#if value == data[key]?string>
<option value="${data[key]}" selected>${data[text]}</option>
<#else>
<option value="${data[key]}">${data[text]}</option>
</#if>
<#else>
<#if value == data>
<option value="${data}" selected>${data}</option>
<#else>
<option value="${data}">${data}</option>
</#if>
</#if>
</#list>
</#if>
</select>
</#macro>
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