登錄時記住用戶名和密碼的Cookie實現方法

在 login.jsp 中用下面的代碼獲取 Cookie　

< %
            String name="";
            String passward="";
            Cookie[] cookies=request.getCookies();
            if(cookies!=null){
                for(int i=0;i<cookies.length;i++){
                    Cookie cookie = cookies[i];
                    if(cookie.getName().equalsIgnoreCase("oa")){
                        String value=cookie.getValue();
                        if(value.indexOf("-")!=-1 && value.split("-").length>1){
                            name=cookie.getValue().split("-")[0];
                            passward=cookie.getValue().split("-")[1];
                        }
                    }
                }
            }
%>

在 java 文件中用下面的代碼保存 Cookie

String saveCookie= request.getParameter("saveCookie");
String username = request.getParameter("name");
String password = request.getParameter("passward");

if ("".equals(saveCookie)) {
    Cookie cookie = new Cookie("oa", null);
    cookie.setMaxAge(0);
    cookie.setPath("/");
    response.addCookie(cookie);
} else if (saveCookie.equals("save")) {
    Cookie cookie = new Cookie("oa", username + "-" + password);
    cookie.setMaxAge(24 * 60 * 60 * 365);//不設置時間的話，無法存入本地COOKIE
    cookie.setPath("/");
    response.addCookie(cookie);
}