权限过滤

权限过滤的根本是通过url里面是否包含权限关键字，并且根据需求进行对应的处理。

		// TODO Auto-generated method stub
		// place your code here
		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse resp = (HttpServletResponse) response;
		User user = new User(1,"zhao",123456,1);
		String requestURI = req.getRequestURI();
		if(user.getUserType()==1){
			if(!requestURI.contains("user")){
				System.out.println("权限不够");
				return;
			}
			chain.doFilter(request, response);
		}