今天新创建的Maven WEB项目,全部的代码都没问题但是就是项目上显示 红叉,
查看Eclipse 显示项目异常的Marker Tab, 说是
Java compiler level does not match the version of the installed Java project fact.
将项目设定的 java 版本改成正在用的即可,
具体操作:
右键项目“Properties”，在弹出的“Properties”窗口左侧，单击“Project Facets”，打开“Project Facets”页面。在页面中的“Java” 下拉列表中，选择相应版本就OK了
改动位置如下图示:
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