对Cookie的操作

Cookie管理工具

最新推荐文章于 2022-01-07 12:56:03 发布

最新推荐文章于 2022-01-07 12:56:03 发布 · 108 阅读

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#Servlet

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import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Cookie管理
* @author coder_hero
*
*/
public class CookieManager {
    private HttpServletRequest request = null;
    private HttpServletResponse response = null;
    //private String securityCode = "yimei1234abcd09";    //加密code
    public CookieManager(HttpServletRequest request, HttpServletResponse response) {
        this.request = request;
        this.response = response;
    }
    /**
    * 获取cookie
    * @param name
    * @return
    */
    public String getCookie(String name) {
        if (name == null) return null;
        Cookie[] cookies = request.getCookies();
        if (cookies != null) {
            for (int i = 0; i < cookies.length; i++) {
                if (cookies[i].getName().equals(name)){
                    String value = new String( cookies[i].getValue());
                    //return DESede.DeCrypt(value,securityCode);
                    return value;
                }
            }
        }
        return null;
    }
    /**
    * 设置cookie
    * @param name
    * @param value
    * @param maxAge
    */
    public void setCookie(String name, String value, int maxAge) {
        //value = DESede.EnCrypt(value,securityCode);
        Cookie cookie = new Cookie(name, value);
        cookie.setMaxAge(maxAge);
        cookie.setPath("/");
        response.addCookie(cookie);
    }

    /**
    * 设置cookie
    * @param name
    * @param value
    */
    public void setCookie(String name, String value) {
        //value = DESede.EnCrypt(value,securityCode);
        Cookie cookie = new Cookie(name, value);
        cookie.setMaxAge(3600);
        cookie.setPath("/");
        response.addCookie(cookie);
    }
    /**
    * 删除cookie
    * @param name
    */
    public void delCookie(String name) {
        Cookie cookie = new Cookie(name, null);
        cookie.setMaxAge(0);
        cookie.setPath("/");
        response.addCookie(cookie);
    }
}