javax.servlet.ServletException: File quot;/.jspquot; not found
问题：
javax.servlet.ServletException: File "/.jsp" not found
来源于代码：
@RequestMapping(value="/checkcode")public String checkcode(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{ImageUtil.outputCaptcha(request, response, "checkCode");return "";}其实已经很明显了，太久没有用有点生疏了。
在做验证码的时候，返回时return ""的话，会认为是一个return一个空的地址。导致了 指向不唯一。导致错误
@RequestMapping(value="/checkcode")public void checkcode(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{ImageUtil.outputCaptcha(request, response, "checkCode");return ;}简单修改，通过
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