删除cookie之前后端

cookie的存储与删除

首先在登录之后将用户的cookie存起来

public static void addCookie(HttpServletResponse response, String name, String value, int maxTime){
    	Cookie cookie;
		try {
			if(value != null){
				cookie = new Cookie(name, URLEncoder.encode(value,"utf-8"));
				cookie.setMaxAge(maxTime);
				cookie.setDomain(DOMAIN);
				cookie.setPath("/");
		    	response.addCookie(cookie);
			}
		} catch (UnsupportedEncodingException e) {
			return;
		}

    }

同时我也在CookiesUtils这个类里定义了存入的cookie名字：

public static final String COOKIE_MDMOOC_VIDEO_ADMIN = "cookie_mdmooc_video_admin";

将token存入cookie，不能明文存入

public String Login(String account, String password, HttpServletResponse response){
        //todo  数据库获得一个用户
        EntityWrapper<TencentUser> wrapper = new EntityWrapper<>(  );
        wrapper.where( "account={0}",account ).and("password={0}",password);
        List<TencentUser> list = tencentUserService.selectList(wrapper);
        if (list.size()<=0||list == null){
            return String.valueOf( BaseResultData.ERROR( 500,"账号或密码错误" ) );
        }
        UserInfo userInfo=new UserInfo();
        userInfo.setAccount(list.get( 0 ).getAccount());
        userInfo.setUserType(list.get( 0 ).getUserType());
        String token = jwtHelper.createToken(userInfo);
        CookiesUtils.addCookie( response,CookiesUtils.COOKIE_MDMOOC_VIDEO_ADMIN,token,60*60*12 );
        return token;
    }

如果想要退出登录，就需要删除cookie

 public static void removeCookie(HttpServletRequest request, HttpServletResponse response, String name){
    	Cookie[] cookies = request.getCookies();
    	if (null != cookies) {
            for (int i = 0; i < cookies.length; i++) {
               if (cookies[i].getName().equals(name)){
            	   cookies[i].setPath("/");
            	   cookies[i].setMaxAge(0);
				   cookies[i].setDomain(DOMAIN);
            	   response.addCookie(cookies[i]);
            	   break;
               }
            }
        }
    }

如果前后端没有分离的话，可以在后端将cookie删除

@RequestMapping(value = "/exit")
    public String toExit(HttpServletRequest request, HttpServletResponse response) {
        CookiesUtils.removeCookie(request, response, CookiesUtils.COOKIE_AM_USER_ADMIN);
        return "redirect:login";
    }

但是如果分离的话，可以在前端利用jQuery删除，删除之前我们需要引用js

<script src="///jquery/1.12.4/"></script>
<script src="///jquery-cookie/1.4.1/"></script>

然后记住我们存入的cookie名字，删除就可以了

$.removeCookie('cookie_mdmooc_video_admin',{ path: '/'});