- filter–固定每次請求都要處理,檢查session、cookie等信息處理 extends OncePerRequestFilter
添加變量,except,excepts[] 排除某些鏈接,例如靜態網頁,登陸首頁、註冊首頁等。
private String except;
private String[] excepts;
public String getExcept() {
return except;
}
//過濾器處理業務函數
public void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
throws ServletException, IOException