如何在servlet中调用javascript cookie？

我已经尝试使用

request.getcookie（）

方法。但我发现该值为null

有没有办法将cookie从javascript转换成servlet？

试试这个

Cookie[] cookies = request.getCookies();


for (int i = 0; i < cookies.length; i++) {
    Cookie c = cookies[i];
     c.getName()  //cookie name
    c.getValue()   //cookie value

  }

Cookie[]cookies=request.getCookies（）；
for（int i=0；i

试试这个

Cookie[] cookie = request.getCookies();
if(cookie != null && cookie.length > 0) {
    System.out.println("CkInfo");
    for(int i = 0;i < cookie.length; ++i) {
    System.out.println("["+i+"] info");
    System.out.println("Name: "+cookie[i].getName());
    System.out.println("Comment: "+cookie[i].getComment());
    System.out.println("Domain: "+cookie[i].getDomain());
    System.out.println("MaxAge: "+cookie[i].getMaxAge());
    System.out.println("Path: "+cookie[i].getPath());
    System.out.println("Value: "+cookie[i].getValue());
    }
}

Cookie[]Cookie=request.getCookies（）；
如果（cookie！=null&&cookie.length>0）{
System.out.println（“CkInfo”）；
对于（int i=0；i

试试这个

Cookie[] cookie = request.getCookies();
if(cookie != null && cookie.length > 0) {
    System.out.println("CkInfo");
    for(int i = 0;i < cookie.length; ++i) {
    System.out.println("["+i+"] info");
    System.out.println("Name: "+cookie[i].getName());
    System.out.println("Comment: "+cookie[i].getComment());
    System.out.println("Domain: "+cookie[i].getDomain());
    System.out.println("MaxAge: "+cookie[i].getMaxAge());
    System.out.println("Path: "+cookie[i].getPath());
    System.out.println("Value: "+cookie[i].getValue());
    }
}