有两种方法可以做到。

1号路

进入文件>设置>构建，执行，部署>构建工具| Maven

选择“始终更新快照”

Apply和OK

2号路 mvn -U clean install

打开“Maven Projects”选项卡/窗口，单击左上角的“Reimport All Maven Projects”，开始从它们的存储库中重新加载所有依赖项。状态栏显示该进程的相关信息。

是什么让你认为这是不正确的工作?也许任何依赖项都不能从存储库加载?

对于IntelliJ IDEA 14.0

项目>[您的项目名称]>右键单击> Maven >重新导入

这在2022年仍然是一个问题。

The option Setting > Maven > Always update snapshots no longer works in IDEA 2022.2.2, probably because Maven 3 frowns upon it and IntelliJ seems to not have updated the IDE to make it function. A simple solution might be to be able to add maven -U clean install as a custom target to the Lifecycle list in the IDEA Maven tab, but if it is possible it is not clear how to do it (even after googling for days). A not as nice but viable solution would be to go into the Terminal tool of IDEA and typing maven -U clean install, but IDEA does not expose the maven command in its Terminal by default and again it is not clear how to configure it so that it would.

按Ctrl+Shift+A找到动作，输入“reload”，会找到“reload All Maven Projects”。

在Mac上，使用⌘+ + a。

下面最左边的按钮(蓝色循环)也重新导入了所有的maven项目: