[BUG] ActionBase 删除Cookie问题

包：com.gdxsoft.easyweb.script.display.action

类：ActionBase

方法：addCookie

删除Cookie时判断错误，如果Cookie.value == null时返回，删除Cookie时，不会进行赋值

public void addCookie(Cookie cookie) {
    if (cookie == null ) {
        return;
    }
    
    MStr s = new MStr();
    s.a(cookie.getName());
    s.a("=");

    if(cookie.getValue()!=null){ //此处进行处理
        s.a(cookie.getValue());
    }

    if (cookie.getMaxAge() > 0) {
        Calendar c = Calendar.getInstance();
        c.add(Calendar.SECOND, cookie.getMaxAge());
        String dt = c.getTime().toString();
        s.a(";Expires=" + dt);
    } else if (cookie.getMaxAge() < 0) { //删除cookie
        Calendar c = Calendar.getInstance();
        c.add(Calendar.YEAR, -2);
        String dt = c.getTime().toString();
        s.a(";Expires=" + dt);
    }
    if (cookie.getPath() != null && cookie.getPath().trim().length() > 0) {
        s.a(";Path=" + cookie.getPath());
    }
    if (cookie.getSecure()) {
        s.a(";Secure");
    }
    s.a(";HttpOnly");

    this._Response.addHeader("Set-Cookie", s.toString());
}