在项目上右键选择properties,然后点击Java build path,在Librarys下,编辑JRE System Library,选择 workspace default jre 即可 相关文章: 2022-12-23 2021-12-10 2021-07-02 2022-12-23 2021-04-28 2021-05-02 2021-09-09