如何在反应中设置 cookie? [英] How can I set a cookie in react?

问题描述

本来我是用下面的ajax来设置cookie的.

Orginally, I use the following ajax to set cookie.

function setCookieAjax(){
  $.ajax({
    url: `${Web_Servlet}/setCookie`,
    contentType: 'application/x-www-form-urlencoded;charset=utf-8',
    headers: { 'Access-Control-Allow-Origin': '*',
               'username': getCookie("username"),
              'session': getCookie("session")
    },
    type: 'GET',
    success: function(response){
      setCookie("username", response.name, 30);
      setCookie("session", response.session, 30);}
  })
}

function setCookie(cname, cvalue, minutes) {
    var d = new Date();
    d.setTime(d.getTime() + (minutes*60*1000));
    var expires = "expires="+ d.toUTCString();
    document.cookie = cname + "=" + cvalue + "; " + expires;
}

export const getUserName = (component) => {
    setCookieAjax()
 $.ajax({
    url: `${Web_Servlet}/displayHeaderUserName`,
    contentType: 'application/x-www-form-urlencoded;charset=utf-8',
    headers: { 'Access-Control-Allow-Origin': '*',
                'username': getCookie("username"),
                'session': getCookie("session")
            },
    type: 'GET',
    success: function(response){
        component.setState({
        usernameDisplay: response.message
        })
   }.bind(component)
 })
}

现在，我想使用 servlet 的添加 cookie 功能来设置 cookie.但我不知道如何达到我的目的.

Now, I want to set the cookie using the servlet's adding cookie function. But I don't know how to achieve my purpose.

Cookie loginCookie = new Cookie("user",user);  //setting cookie to expiry in 30 mins
        loginCookie.setMaxAge(30*60);
        loginCookie.setDomain("localhost:4480");
        loginCookie.setPath("/");

response.addCookie(loginCookie);

为了延长cookie的时间限制，我应该在react端写什么来接收cookie的会话时间?

In order to extend the cookie timelimit, what should I write in the react side to receive the cookie's session time?

推荐答案

之前出现在 react-cookie npm 包中的功能似乎已移至 universal-cookie.universal-cookie 存储库中的相关示例 现在是:

It appears that the functionality previously present in the react-cookie npm package has been moved to universal-cookie. The relevant example from the universal-cookie repository now is:

import Cookies from 'universal-cookie';
const cookies = new Cookies();
cookies.set('myCat', 'Pacman', { path: '/' });
console.log(cookies.get('myCat')); // Pacman

这篇关于如何在反应中设置 cookie?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！