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一、Java连接redis-No-SQL1、导入依赖在你的项目里面导入redis的pom依赖<dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId&g...

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Linux CentOS7搭建邮件服务器并用Foxmail和Java代码发送邮件（下）

10-auth.conf使用下面命令修改配置文件vim /etc/dovecot/conf.d/10-auth.conf第10行的 disable_plaintext_auth 取消注释，并将值改为no：10-mail.conf使用下面命令修改配置文件vim /etc/dovecot/conf.d/...

Linux CentOS7搭建邮件服务器并用Foxmail和Java代码发送邮件（上）

CentOS7搭建邮件服务器环境准备你只需要准备一台CentOS，接下来我们就开始吧域名解析有没有自己的域名都可以搭建邮件服务器，具体配置域名的方法见以下步骤拥有自己的域名首先我们需要解析一个 mail.域名域名到你的服务器，如下图（IP地址填写自己的服务器IP地址）：然后我们还需要一个 @.域名...

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第二季：7.怎么查看服务器默认的垃圾收集器是那个?生产上如何配置垃圾收集器的?谈谈你对垃圾收集器的理解?【Java面试题】2

并行GC(ParNew)因为Serial 和 ParNew都不推荐使用了，因此现在新生代默认使用的是Parallel Scavenge，也就是新生代和老年代都是使用并行ParNew（并行）收集器一句话:使用多线程进行垃圾回收，在垃圾收集时，会Stop-the-World暂停其他所有的工作线程直到它收...

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