<label class="label">授课教师</label>
<p class="content" id="teacher">
<span th:if="${course!=null}"
th:each="i:${course.teachers}"
th:text="${i}+'<br>'">
</span>
</p>
如果后台传过来的是一个空对象怎么办啊,这样会报错,一直找不到解决方法。
Caused by: org.attoparser.ParseException: Exception evaluating SpringEL expression: "course.teachers" (template: "index" - line 126, col 19)
at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:393) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
... 52 common frames omitted