java - FTL 中的 boolean 条件

Question

我是 freemarker 模板的新手。我需要根据 boolean 条件显示一个字符串。解析 ftl 文件时出现错误

<#if debitNote.gst?string("Yes", "No")>

错误

if debitNote.gst?string("Yes", "No") [on line 150, column 95 in creditDebitCustomer.ftl]
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Java backtrace for programmers:
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freemarker.core.NonBooleanException:

Answer 1

您可以使用三元表达式 then表达式:

${debitNote.gst?then("Yes", "No")}

The string boolean builtin function has been deprecated since FreeMarker 2.3.20 and has been replaced with then.