目录1、telnet命令检测2、nc命令检测3、nmap命令检测4、执行/dev/tcp检测作为系统管理员、网络工程编程师或应用程序开发人员，需要检查远程服务器上的端口是否打开，以便您可以判断所检查的服务是否正在运行。比如远
we are using Spring Security 2.0.4. We have a TransactionTokenBean which generates a unique token each POST, the bean is session scoped. The token is used for the duplicate form submission problem (an
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