一，案例一

1.1、错误描述

 freemarker.core.ParseException: Token manager error: freemarker.core.TokenMgrError: Lexical error at line 16, column 50.  Encountered: "\uff01" (65281), after : "" in course.ftl
     at freemarker.template.Template.<init>(Template.java:174)
     at freemarker.cache.TemplateCache.loadTemplate(TemplateCache.java:447)
     at freemarker.cache.TemplateCache.getTemplate(TemplateCache.java:360)
     at freemarker.cache.TemplateCache.getTemplate(TemplateCache.java:235)
     at freemarker.template.Configuration.getTemplate(Configuration.java:578)
     at freemarker.template.Configuration.getTemplate(Configuration.java:543)
     at com.you.freemarker.FreemarkerTemplate.getTemplate(FreemarkerTemplate.java:52)
     at com.you.freemarker.FreemarkerTemplate.printFtl(FreemarkerTemplate.java:76)
     at com.you.test.freemarker.FreemarkerTest.studentPrint(FreemarkerTest.java:142)
     at com.you.test.freemarker.FreemarkerTest.testCourse(FreemarkerTest.java:129)
     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)

1.2、错误原因

"没有任何值存在"前多了一个空格

 ${(student.course.courseName)！"没有任何值存在"}

1.3、解决办法

"没有任何值存在"前面的空格去掉

 ${(student.course.courseName)!"没有任何值存在"}

二，案例二

2.1，错误描述

 freemarker.core.ParseException: Token manager error: freemarker.core.TokenMgrError: Unknown directive: #list on line: 17, column: 61, in template: map.ftl in map.ftl
     at freemarker.template.Template.<init>(Template.java:174)
     at freemarker.cache.TemplateCache.loadTemplate(TemplateCache.java:447)
     at freemarker.cache.TemplateCache.getTemplate(TemplateCache.java:360)
     at freemarker.cache.TemplateCache.getTemplate(TemplateCache.java:235)
     at freemarker.template.Configuration.getTemplate(Configuration.java:578)
     at freemarker.template.Configuration.getTemplate(Configuration.java:543)
     at com.you.freemarker.FreemarkerTemplate.getTemplate(FreemarkerTemplate.java:52)
     at com.you.freemarker.FreemarkerTemplate.printFtl(FreemarkerTemplate.java:76)
     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)

2.2，错误原因

结束标签书写不对

 <#assign stu={"name":"zhangsan","age":"21","sex":"man"}>
      <#assign keys = stu?keys>
      <#list keys as key>
          ${key} = ${stu[key]};
      <#list>

2.3，解决办法

正确写结束标签

 <#assign stu={"name":"zhangsan","age":"21","sex":"man"}>
      <#assign keys = stu?keys>
      <#list keys as key>
          ${key} = ${stu[key]};
      </#list>

就是不是<#list>而是</#list>

三，案例三

freemarker自定义标签

3.1、错误描述

 freemarker.core.ParseException: Token manager error: freemarker.core.TokenMgrError: Unknown directive: #macro on line: 12, column: 101, in template: myself.ftl in myself.ftl
     at freemarker.template.Template.<init>(Template.java:174)
     at freemarker.cache.TemplateCache.loadTemplate(TemplateCache.java:447)
     at freemarker.cache.TemplateCache.getTemplate(TemplateCache.java:360)
     at freemarker.cache.TemplateCache.getTemplate(TemplateCache.java:235)
     at freemarker.template.Configuration.getTemplate(Configuration.java:578)
     at freemarker.template.Configuration.getTemplate(Configuration.java:543)
     at com.you.freemarker.FreemarkerTemplate.getTemplate(FreemarkerTemplate.java:52)
     at com.you.freemarker.FreemarkerTemplate.printFtl(FreemarkerTemplate.java:76)
     at com.you.test.freemarker.FreemarkerTest.studentPrint(FreemarkerTest.java:217)
     at com.you.test.freemarker.FreemarkerTest.testMyself(FreemarkerTest.java:204)
     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)

3.2，错误原因

 <#--freemarker自定义标签-->
 <#macro write>
 ${repeat("张三丰",3)}
 <#macro>

3.3、解决办法

又犯了同样的错误，结束标签没有封口

 <#--freemarker自定义标签-->
 <#macro write>
 ${repeat("张三丰",3)}
 </#macro>

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