IntellijIDEA无法识别Maven依赖项中指定的类
我在IntellijIDEA中有一个用Maven创建的项目。然后我在Pom.xml文件中指定了一组依赖项和外部存储库。
I have a project in IntellijIDEA which was created with Maven. I then specified a set of dependencies and external repositories in the Pom.xml file.
如果我执行mvn install，项目在命令行上构建正常。当我在IDE中打开任何代码文件时，虽然它表示Maven依赖项处理的所有类都无法识别 - 如果我从未将所需的JAR添加到构建路径中那么它将用于普通项目。
The project builds fine on command line if I do "mvn install". When I open any of the code files in the IDE though it says all the classes handled by Maven dependencies aren't recognized - as it would for a normal project if I never added the required JARs to the build path.
我知道在我的Eclipse Maven项目（而不是IntelliJ）中，它通常在左边显示一个额外的目录，上面写着Maven Dependencies并列出了通过maven引入的JAR。我在这里看不到。我做错了什么？
I know in my Eclipse Maven projects (rather than IntelliJ) it usually shows an extra directory on the left which says "Maven Dependencies" and lists the JARs pulled in via maven. I don't see that here. What am I doing wrong?
以下是我的屏幕：
由于某种原因，重新导入并没有成功。看完之后：
For some reason re-import did not do the trick. After looking at this:
http：// www.jetbrains.com/idea/webhelp/maven-importing.html
我设置自动导入然后问题就消失了;希望它能帮助别人。感谢大家的想法:)。
I set auto-import and then the problem went away though; hopefully it helps someone else. Thanks for the ideas everyone :).