freemarker.core.NonMethodException: [... Exception message was already printed; see it above ...]

最新推荐文章于 2023-10-28 21:48:51 发布

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最新推荐文章于 2023-10-28 21:48:51 发布

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分类专栏： JAVA 文章标签： freemarker Boolean

本文链接：https://blog.youkuaiyun.com/testcs_dn/article/details/71683417

博客内容提到了在使用Freemarker模板引擎时遇到的一个问题，具体表现为尝试将Boolean值转换为字符串并填充空格时抛出`NonMethodException`。代码片段显示了问题所在，强调了在特定场景下只能使用单引号。

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相关代码

${column.nullableString?string("N","Y")?right_pad(5," ")}

错误信息

五月 11, 2017 5:09:23 下午 freemarker.log._JULLoggerFactory$JULLogger error
严重: Error executing FreeMarker template
FreeMarker template error:
For "...(...)" callee: Expected a method, but this has evaluated to a string (wrapper: f.t.SimpleScalar):
==> column.nullableString?string  [in template "baseTemplate/java_src/${basepackage_dir}/interfaceDoc/${className}Doc.html" at line 101, column 86]

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${column.nullableString?string("N", "...  [in template "baseTemplate/java_src/${basepackage_dir}/interfaceDoc/${className}Doc.html" at line 101, column 84]
----

Java stack trace (for programmers):
----
freemarker.core.NonMethodException: [... Exception message was already printed; see it above ...]
	at freemarker.core.MethodCall._eval(MethodCall.java:85)
	at freemarker.core.Expression.eval(Expression.java:81)
	at freemarker.core.Expression.evalAndCoerceToStringOrUnsupportedMarkup(Expression.java:107)
	at freemarker.core.BuiltInForString.getTargetString(BuiltInForString.java:34)
	at freemarker.core.BuiltInForString._e

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