cookiebean.java

来自「cwbbs 云网论坛源码」· Java 代码 · 共 133 行

package cn.js.fan.util;


import javax.servlet.http.*;
import java.net.URLEncoder;
import java.net.URLDecoder;


public class CookieBean {

  public CookieBean() {
  }

  
  public static void addCookie(HttpServletResponse res, String cookieName, String cookieValue) {
    String v = "";
    try {
      v = URLEncoder.encode(cookieValue, "UTF-8");
    }
    catch (Exception e) {}

    Cookie c = new Cookie(cookieName, v);
    res.addCookie(c);
  }
  
  
  public static void addCookie(HttpServletResponse res, String cookieName,
                               String cookieValue, String path) {
      String v = "";
      try {
          v = URLEncoder.encode(cookieValue, "UTF-8"); 
      } catch (Exception e) {}
      Cookie c = new Cookie(cookieName, v);
      c.setPath(path);
      res.addCookie(c);
  }

  public static void addCookie(HttpServletResponse res, String cookieName,
                               String cookieValue, String path, int maxAge) {
      String v = "";
      try {
          v = URLEncoder.encode(cookieValue, "UTF-8"); 
      } catch (Exception e) {}
      Cookie c = new Cookie(cookieName, v);
      c.setPath(path);
      c.setMaxAge(maxAge);
      res.addCookie(c);
  }

  public static void delCookie(HttpServletResponse res, String cookieName, String path) {
    Cookie killMyCookie = new Cookie(cookieName, null);
    
    
    
    killMyCookie.setMaxAge(0);
    killMyCookie.setPath(path);
    res.addCookie(killMyCookie);
  }

  
  public static void setCookieMaxAge(HttpServletRequest req,
                                     HttpServletResponse res,
                                     String cookieName,
                                     int cookieExpiresSeconds) {
      Cookie c[] = req.getCookies();
      if (c != null) {
          for (int i = 0; i < c.length; i++) {
              if (c[i].getName().equals(cookieName)) {
                  c[i].setMaxAge(cookieExpiresSeconds);
                  res.addCookie(c[i]);
              }
          }
      }
  }

  public static void setCookieDomain(HttpServletRequest req, HttpServletResponse res, String cookieName, String domain) {
    Cookie c[] = req.getCookies();
    if (c != null) {
      for (int i = 0; i < c.length; i++) {
        if (c[i].getName().equals(cookieName)) {
          c[i].setDomain(domain);
          res.addCookie(c[i]);
        }
      }
    }
  }


  
  public static int getCookieMaxAge(HttpServletRequest req, String cookieName) {
    Cookie c[] = req.getCookies();
    if (c != null) {
      for (int i = 0; i < c.length; i++) {
        if (c[i].getName().equals(cookieName)) {
          return c[i].getMaxAge();
        }
      }
    }
    return -1;
  }

  
  public static String getCookieValue (HttpServletRequest req, String cookieName) {
    Cookie c[] = req.getCookies();
    if (c != null) {
      for (int i = 0; i < c.length; i++) {
        if (c[i].getName().equals(cookieName)) {
          String str = "";
          try {
            str = URLDecoder.decode(c[i].getValue(), "UTF-8");
          }
          catch (Exception e) {}
          return str;
        }
      }
    }
    return "";
  }

  
  public static void setCookieValue (HttpServletRequest req, HttpServletResponse res, String cookieName, String cookieValue) {
    Cookie c[] = req.getCookies();
    if (c != null) {
      for (int i = 0; i < c.length; i++) {
        if (c[i].getName().equals(cookieName)) {
          c[i].setValue(cookieValue);
          res.addCookie(c[i]);
        }
      }
    }
  }
}