/**
* Copyright © 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
*/
package com.thinkgem.jeesite.common.utils;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.ui.Model;
/**
* Cookie工具类
* @author ThinkGem
* @version 2013-01-15
*/
public class CookieUtils {
/**
* 设置 Cookie（生成时间为1天）
* @param name 名称
* @param value 值
*/
public static void setCookie(HttpServletResponse response, String name, String value) {
setCookie(response, name, value, 60*60*24);
}
/**
* 设置 Cookie
* @param name 名称
* @param value 值
* @param maxAge 生存时间（单位秒）
* @param uri 路径
*/
public static void setCookie(HttpServletResponse response, String name, String value, String path) {
setCookie(response, name, value, path, 60*60*24);
}
/**
* 设置 Cookie
* @param name 名称
* @param value 值
* @param maxAge 生存时间（单位秒）
* @param uri 路径
*/
public static void setCookie(HttpServletResponse response, String name, String value, int maxAge) {
setCookie(response, name, value, "/", maxAge);
}
/**
* 设置 Cookie
* @param name 名称
* @param value 值
* @param maxAge 生存时间（单位秒）
* @param uri 路径
*/
public static void setCookie(HttpServletResponse response, String name, String value, String path, int maxAge) {
Cookie cookie = new Cookie(name, null);
cookie.setPath(path);
cookie.setMaxAge(maxAge);
try {
cookie.setValue(URLEncoder.encode(value, "utf-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
response.addCookie(cookie);
}
/**
* 获得指定Cookie的值
* @param name 名称
* @return 值
*/
public static String getCookie(HttpServletRequest request, String name) {
return getCookie(request, null, name, false);
}
/**
* 获得指定Cookie的值，并删除。
* @param name 名称
* @return 值
*/
public static String getCookie(HttpServletRequest request, HttpServletResponse response, String name) {
return getCookie(request, response, name, true);
}
/**
* 获得指定Cookie的值
* @param request 请求对象
* @param response 响应对象
* @param name 名字
* @param isRemove 是否移除
* @return 值
*/
public static String getCookie(HttpServletRequest request, HttpServletResponse response, String name, boolean isRemove) {
String value = null;
Cookie[] cookies = request.getCookies();
if (cookies != null) {
for (Cookie cookie : cookies) {
if (cookie.getName().equals(name)) {
try {
value = URLDecoder.decode(cookie.getValue(), "utf-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (isRemove) {
cookie.setMaxAge(0);
response.addCookie(cookie);
}
}
}
}
return value;
}
/**
* 生成cookie的值 浏览过商品id的拼接
* @return 生成cookie的id拼接值
*/
public static String createValue(HttpServletRequest request,String id) {
String exhiHist = CookieUtils.getCookie(request, "exhiHist");
// null或没有exhiHist
if( StringUtils.isBlank(exhiHist)){
//直接返回传入的id
return id;
}
// 3,2,1 2
//String -> String[] -> Collection :为了方便判断重复id
String[] ids = exhiHist.split(",");
Collection colls = Arrays.asList(ids); //<3,21>
// LinkedList 方便地操作（增删改元素）集合
// Collection -> LinkedList
LinkedList list = new LinkedList(colls);
//不超过4个
if(list.size()<6){
//id重复
if(list.contains(id)){
//去除重复id，把传入的id放最前面
list.remove(id);
list.addFirst(id);
}else{
//直接把传入的id放最前面
list.addFirst(id);
}
}else{
//等于4个
//id重复
if(list.contains(id)){
//去除重复id，把传入的id放最前面
list.remove(id);
list.addFirst(id);
}else{
//去最后的id，把传入的id放最前面
list.removeLast();
list.addFirst(id);
}
}
// LinedList -> String
StringBuffer sb = new StringBuffer();
for (Object object : list) {
sb.append(object+",");
}
//去掉最后的逗号
String result = sb.toString();
result = result.substring(0, result.length()-1);
return result;
}
/**
* 获取我的足迹的方法
* @param model
* @param request
*/
public static void getMyWatch(Model model, HttpServletRequest request,HttpServletResponse response) {
try {
String exhiIds = CookieUtils.getCookie(request, "exhiHist");
if(StringUtils.isNotBlank(exhiIds)){
String[] obj = exhiIds.split(",");
List<Map<String, String>> list = new ArrayList<Map<String,String>>();
for (String product : obj) {
String[] elem = product.split(":");
if(elem.length>0){
Map<String, String> p = new HashMap<String,String>();
p.put("total", elem[0]);
p.put("zhanWeiArea", elem[1]);
p.put("tiMu", elem[2]);
p.put("url", elem[3]);
list.add(p);
}
}
model.addAttribute("hist", list);
}
} catch (Exception e) {
CookieUtils.setCookie(response, "exhiHist", "");
}
}
/**
* 获取Cookie 值
* @param request
* @return
*/
public static Map<String,Cookie> ReadCookieMap(HttpServletRequest request){
Map<String,Cookie> cookieMap = new HashMap<String,Cookie>();
Cookie[] cookies = request.getCookies();
if(null!=cookies){
for(Cookie cookie : cookies){
cookieMap.put(cookie.getName(), cookie);
}
}
return cookieMap;
}
/**
*
* @param request
* @param response
* @param name
* @return
*/
public static boolean clearCookie(HttpServletRequest request,HttpServletResponse response, String name){
boolean bool = false;
Cookie[] cookies = request.getCookies();
try {
for(int i =0;i<cookies.length;i++){
Cookie cookie = new Cookie(name, null);
cookie.setMaxAge(0);
cookie.setPath("/");
response.addCookie(cookie);
bool=true;
}
} catch (Exception e) {
e.printStackTrace();
}
return bool;
}
}
