用STRUTS解决重复提交问题，程序中用两种方法解一：脱离STURTS框架，使用随机来解决。二：用STRUTS框架解决，TOKEN 的应用-STRUTS solution used to submit the issue of duplication, procedures used in two ways one solution: from STURTS fr a mework, the use of random to resolve. Second: Using STRUTS fr a