thymeleaf取modelandview返回的值如果不存在会报错

Question

<script type="text/javascript">
    var realName='[[${account.realName}]]';
</script>

mav.addObject("account",account);
通过modelandview传值给前端，当account存在的时候正常，如果没传值，thymeleaf模板引擎这种取值方式'[[${account.realName}]]'会报500，有没有办法在'[[${account.realName}]]'这里取值进行判断是否存在，有没有什么好的解决方案

There was an unexpected error (type=Internal Server Error, status=500).
An error happened during template parsing (template: "class path resource [templates/newsInfo.html]")
org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/newsInfo.html]")
    at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:241)
    at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100)
    at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:666)
    at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098)

Answer 1

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