是否有一个命令行工具来优化Java项目上的导入？

我正在寻找一种工具，它可以在代码基础上自动优化导入过程。此工具在大多数IDE（例如IntelliJ）中都可用，它删除未使用的导入并将任何.*导入扩展到代码专门使用的导入中

我想将其添加为MVN目标或Ant任务，或者在提交/推送之前可以运行的东西

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也许有一种方法可以在命令行运行IntelliJ来具体执行此功能，但我还没有找到这样的命令。

似乎满足了您的要求。它可以做到，而且有。

如果您正在寻找一个命令行工具来优化java导入，请查看。它提供了修复导入的选项：

$ java -jar google-java-format-1.4-all-deps.jar
no files were provided

Usage: google-java-format [options] file(s)

Options:
  -i, -r, -replace, --replace
    Send formatted output back to files, not stdout.
  -
    Format stdin -> stdout
  --aosp, -aosp, -a
    Use AOSP style instead of Google Style (4-space indentation)
  --fix-imports-only
    Fix import order and remove any unused imports, but do no other formatting.
  --skip-sorting-imports
    Do not fix the import order. Unused imports will still be removed.
  --skip-removing-unused-imports
    Do not remove unused imports. Imports will still be sorted.
  --length, -length
    Character length to format.
  --lines, -lines, --line, -line
    Line range(s) to format, like 5:10 (1-based; default is all).
  --offset, -offset
    Character offset to format (0-based; default is all).
  --help, -help, -h
    Print this usage statement
  --version, -version, -v
    Print the version.

If -i is given with -, the result is sent to stdout.
The --lines, --offset, and --length flags may be given more than once.
The --offset and --length flags must be given an equal number of times.
If --lines, --offset, or --length are given, only one file (or -) may be given.

google-java-format: Version 1.0
https://github.com/google/google-java-format