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64 lines (59 loc) · 1.57 KB
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package com.imooc.utils;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;
/**
* cookie工具类
* Created by 廖师兄
* 2017-07-30 16:31
*/
public class CookieUtil {
/**
* 设置
* @param response
* @param name
* @param value
* @param maxAge
*/
public static void set(HttpServletResponse response,
String name,
String value,
int maxAge) {
Cookie cookie = new Cookie(name, value);
cookie.setPath("/");
cookie.setMaxAge(maxAge);
response.addCookie(cookie);
}
/**
* 获取cookie
* @param request
* @param name
* @return
*/
public static Cookie get(HttpServletRequest request,
String name) {
Map<String, Cookie> cookieMap = readCookieMap(request);
if (cookieMap.containsKey(name)) {
return cookieMap.get(name);
}else {
return null;
}
}
/**
* 将cookie封装成Map
* @param request
* @return
*/
private static Map<String, Cookie> readCookieMap(HttpServletRequest request) {
Map<String, Cookie> cookieMap = new HashMap<>();
Cookie[] cookies = request.getCookies();
if (cookies != null) {
for (Cookie cookie: cookies) {
cookieMap.put(cookie.getName(), cookie);
}
}
return cookieMap;
}
}