Manually delete the JAR file from its folder.
手动地从其文件夹中删除JAR文件。
Without that, I have to remember to manually delete the persons.data file each time.
若非如此,我将不得不记得每次手工删除persons . data文件。
You can manually delete all the files created in the configured repository directory before running the sample again.
再次运行样例之前,您可以手工删除在配置的存储库路径下创建的所有文件。
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