Spring mvc cookie

代码示例

@Controller
public class HelloController
{

    /**  
     * 读取所有cookie  
     * 注意二、从客户端读取Cookie时,包括maxAge在内的其他属性都是不可读的,也不会被提交。浏览器提交Cookie时只会提交name与value属性。maxAge属性只被浏览器用来判断Cookie是否过期  
     * @param request  
     * @param response  
     */  
    @RequestMapping("/showCookies")  
    public void showCookies(HttpServletRequest request,HttpServletResponse response ){  

        Cookie[] cookies = request.getCookies();//这样便可以获取一个cookie数组  
        if (null==cookies) {  
            System.out.println("没有cookie=========");  
        } else {  
            for(Cookie cookie : cookies){  
                System.out.println("name:"+cookie.getName()+",value:"+ cookie.getValue());  
            }  
        }  

    }  
    /**  
     * 添加cookie  
     * @param response  
     * @param name  
     * @param value  
     */  
    @RequestMapping("/addCookie")  
    public void addCookie(HttpServletResponse response,String name,String value){  
        Cookie cookie = new Cookie(name.trim(), value.trim());  
        cookie.setMaxAge(30 * 60);// 设置为30min  
        cookie.setPath("/");  
        System.out.println("已添加===============");  
        response.addCookie(cookie);  
    }  
    /**  
     * 修改cookie  
     * @param request  
     * @param response  
     * @param name  
     * @param value  
     * 注意一、修改、删除Cookie时,新建的Cookie除value、maxAge之外的所有属性,例如name、path、domain等,都要与原Cookie完全一样。否则,浏览器将视为两个不同的Cookie不予覆盖,导致修改、删除失败。  
     */  
    @RequestMapping("/editCookie")  
    public void editCookie(HttpServletRequest request,HttpServletResponse response,String name,String value){  
        Cookie[] cookies = request.getCookies();  
        if (null==cookies) {  
            System.out.println("没有cookie==============");  
        } else {  
            for(Cookie cookie : cookies){  
                if(cookie.getName().equals(name)){  
                    System.out.println("原值为:"+cookie.getValue());  
                    cookie.setValue(value);  
                    cookie.setPath("/");  
                    cookie.setMaxAge(30 * 60);// 设置为30min  
                    System.out.println("被修改的cookie名字为:"+cookie.getName()+",新值为:"+cookie.getValue());  
                    response.addCookie(cookie);  
                    break;  
                }  
            }  
        }  

    }  
    /**  
     * 删除cookie  
     * @param request  
     * @param response  
     * @param name  
     */  
    @RequestMapping("/delCookie")  
    public void delCookie(HttpServletRequest request,HttpServletResponse response,String name){  
        Cookie[] cookies = request.getCookies();  
        if (null==cookies) {  
            System.out.println("没有cookie==============");  
        } else {  
            for(Cookie cookie : cookies){  
                if(cookie.getName().equals(name)){  
                    cookie.setValue(null);  
                    cookie.setMaxAge(0);// 立即销毁cookie  
                    cookie.setPath("/");  
                    System.out.println("被删除的cookie名字为:"+cookie.getName());  
                    response.addCookie(cookie);  
                    break;  
                }  
            }  
        }  
    }

}