1、错误描述
六月 26, 2014 10:44:49 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template processing error: "The only legal comparisons are between two numbers, two strings, or two dates.\nLeft hand operand is a freemarker.template.SimpleScalar\nRight hand operand is a freemarker.template.SimpleNumber\n" The only legal comparisons are between two numbers, two strings, or two dates. Left hand operand is a freemarker.template.SimpleScalar Right hand operand is a freemarker.template.SimpleNumber The problematic instruction: ---------- ==> if-else [on line 6, column 19 in inc/select.ftl] in user-directive items.select [on line 12, column 6 in address.ftl] ---------- Java backtrace for programmers: ---------- freemarker.template.TemplateException: The only legal comparisons are between two numbers, two strings, or two dates. Left hand operand is a freemarker.template.SimpleScalar Right hand operand is a freemarker.template.SimpleNumber at freemarker.core.ComparisonExpression.isTrue(ComparisonExpression.java:182) at freemarker.core.IfBlock.accept(IfBlock.java:80) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.IfBlock.accept(IfBlock.java:82) at freemarker.core.Environment.visit(Environment.java:221) at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179) 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.eva luate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.eva luate(RunBefores.java:28) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.Bloc