如何使用JGit获取特定的提交

<dependency>
    <groupId>org.eclipse.jgit</groupId>
    <artifactId>org.eclipse.jgit</artifactId>
    <version>5.12.0.201906051800-r</version>
</dependency>

String gitDir = "/path/to/git/repository/.git";
Repository repository = new FileRepository(gitDir);

try (RevWalk revWalk = new RevWalk(repository)) {
    ObjectId headId = repository.resolve(Constants.HEAD);
    RevCommit commit = revWalk.parseCommit(headId);
    // 处理最新的提交
}

ObjectId commitId = ObjectId.fromString("commit_id");
RevCommit commit = revWalk.parseCommit(commitId);

RevFilter authorFilter = CommitTimeRevFilter.after(authorDate);
revWalk.setRevFilter(authorFilter);

RevFilter timeRangeFilter = CommitTimeRevFilter.between(startTime, endTime);
revWalk.setRevFilter(timeRangeFilter);

PersonIdent author = commit.getAuthorIdent();
String authorName = author.getName();
Date authorDate = author.getWhen();