FreeMaker页面取不到新加的字段，大神给分析下

Question

打断点看，bigScreenList里面有数据，bigScreen.url也没有为null的情况，url是新加的字段，之前的每个数据都可以取到。

Expression bigScreen.url is undefined on line 56, column 75 in addedSuccess.ftl.

The problematic instruction:
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==> ${bigScreen.url} [on line 56, column 73 in addedSuccess.ftl]
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Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression bigScreen.url is undefined on line 56, column 75 in addedSuccess.ftl.
at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)
at freemarker.core.Expression.getStringValue(Expression.java:118)
at freemarker.core.Expression.getStringValue(Expression.java:93)
at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
at freemarker.core.Environment.visit(Environment.java:221)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:221)
at freemarker.core.IteratorBlock$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.Environment.process(Environment.java:199)

at freemarker.template.Template.process(Template.java:259)

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Answer 1

字段的 get, set 添加了吗？