设置多个Cookie值并获取SELECT查询的值

Question

如何在客户退房后将供应商名称存储在cookie中？

例子：

顾客至上检查从供应商A的产品和设置cookie的，如：

Cookie: 
+---------+-------+ 
| Name | Value | 
+---------+-------+ 
| vendors | A  | 
+---------+-------+ 

其次从供应商B.检查出产品

Cookie: 
+---------+-------+ 
| Name | Value | 
+---------+-------+ 
| vendors | A, B | 
+---------+-------+ 

然后我想获取cookie的所有值为SELECT name, paymentinfo FROM vendor WHERE name = (All of cookie values)，显示供应商名称如：

Already Ordered 

Vendor Name : A 
Payment Info : _______________ 

Vendor Name : B 
Payment Info : _______________ 

而且当所有cookie都过期时，它什么都不会显示。

Answer 1

你应该使用一个循环遍历你的cookies并获取值。然后只读取这些值并将它们传递给您的逻辑。我已经添加了几个JavaScript函数，几乎只是将它们粘贴到项目中并使用它们。他们应该让你去，因为我不清楚你的问题。

function setCookie(cname, cvalue, exdays) { 
    var d = new Date(); 
    d.setTime(d.getTime() + (exdays*24*60*60*1000)); 
    var expires = "expires="+d.toUTCString(); 

    document.cookie = cname + "=" + cvalue + "; " + expires + "; "; 
} 

function getCookie(cname) { 
    var name = cname + "="; 
    var ca = document.cookie.split(';'); 
    for(var i=0; i<ca.length; i++) { 
     var c = ca[i]; 
     while (c.charAt(0)==' ') c = c.substring(1); 
     if (c.indexOf(name) == 0) return c.substring(name.length, c.length); 
    } 
    return ""; 
} 

function editCookie(cname4,cVal){ 
    setCookie(cname4,cVal,365); 

} 


function checkOrSetCookie(cname2, cdata) { 
    var cookie = getCookie(cname2); 
    var rVal; 
    if (cookie != "") { 
     rVal=true; 

    } else { 

     if (cdata != "" && cdata != null) { 
      setCookie(cname2, cdata, 365); 

     }else{ 
      rVal=false; 

     } 
    } 
} 

function deleteCookie(cname3){ 
    document.cookie = cname3+"=; expires=Thu, 01 Jan 1970 00:00:00 UTC"; 
} 
function deleteAllCookies() { 

    var cookies = document.cookie.split(";"); 

    for (var i = 0; i < cookies.length; i++) { 
     var cookie = cookies[i]; 
     var eqPos = cookie.indexOf("="); 
     var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie; 
     document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT"; 
    } 
}