https://blog.csdn.net/weixin_35973521/article/details/116813890
-Djava.security.egd=file:/dev/./urandom
https://blog.csdn.net/weixin_32159771/article/details/116913024?spm=1001.2101.3001.6650.4&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-4-116913024-blog-114247219.pc_relevant_3mothn_strategy_and_data_recovery&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-4-116913024-blog-114247219.pc_relevant_3mothn_strategy_and_data_recovery&utm_relevant_index=5
标签：relevant,utm,blog,pc,随机数,linux,116913024,多线程 From： https://www.cnblogs.com/diyunpeng/p/16992026.html